./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound2.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_ebf89886-35a7-4ec7-8dcf-5908d73c7249/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf89886-35a7-4ec7-8dcf-5908d73c7249/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_ebf89886-35a7-4ec7-8dcf-5908d73c7249/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf89886-35a7-4ec7-8dcf-5908d73c7249/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf89886-35a7-4ec7-8dcf-5908d73c7249/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_ebf89886-35a7-4ec7-8dcf-5908d73c7249/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 603eeec29f0f7a499f451ec7fa1906f0a8c90a729e0fc96740e12a91ea711946 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:15:20,951 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:15:21,052 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf89886-35a7-4ec7-8dcf-5908d73c7249/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-23 20:15:21,058 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:15:21,059 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:15:21,082 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:15:21,083 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:15:21,084 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:15:21,085 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:15:21,086 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:15:21,087 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:15:21,087 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:15:21,088 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:15:21,089 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:15:21,089 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:15:21,090 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:15:21,091 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:15:21,091 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:15:21,092 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:15:21,093 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:15:21,093 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:15:21,094 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:15:21,095 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:15:21,095 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:15:21,096 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:15:21,097 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:15:21,097 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:15:21,098 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:15:21,098 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:15:21,099 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:15:21,099 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:15:21,100 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:15:21,100 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:15:21,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:15:21,101 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:15:21,102 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_ebf89886-35a7-4ec7-8dcf-5908d73c7249/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf89886-35a7-4ec7-8dcf-5908d73c7249/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 603eeec29f0f7a499f451ec7fa1906f0a8c90a729e0fc96740e12a91ea711946 [2023-11-23 20:15:21,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:15:21,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:15:21,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:15:21,452 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:15:21,453 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:15:21,455 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf89886-35a7-4ec7-8dcf-5908d73c7249/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound2.c [2023-11-23 20:15:24,594 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:15:24,824 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:15:24,825 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf89886-35a7-4ec7-8dcf-5908d73c7249/sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound2.c [2023-11-23 20:15:24,838 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf89886-35a7-4ec7-8dcf-5908d73c7249/bin/ukojak-verify-1t5iHCbJaC/data/e2ec7d914/e9ac934e46424348b12507ef38a3ccaa/FLAGdce01a236 [2023-11-23 20:15:24,855 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf89886-35a7-4ec7-8dcf-5908d73c7249/bin/ukojak-verify-1t5iHCbJaC/data/e2ec7d914/e9ac934e46424348b12507ef38a3ccaa [2023-11-23 20:15:24,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:15:24,860 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:15:24,861 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:15:24,862 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:15:24,870 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:15:24,871 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:15:24" (1/1) ... [2023-11-23 20:15:24,872 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ed069f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:15:24, skipping insertion in model container [2023-11-23 20:15:24,872 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:15:24" (1/1) ... [2023-11-23 20:15:24,904 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:15:25,150 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:15:25,160 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:15:25,191 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:15:25,207 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:15:25,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:15:25 WrapperNode [2023-11-23 20:15:25,208 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:15:25,210 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:15:25,210 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:15:25,210 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:15:25,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:15:25" (1/1) ... [2023-11-23 20:15:25,229 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:15:25" (1/1) ... [2023-11-23 20:15:25,256 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 76 [2023-11-23 20:15:25,257 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:15:25,258 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:15:25,258 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:15:25,259 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:15:25,269 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:15:25" (1/1) ... [2023-11-23 20:15:25,270 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:15:25" (1/1) ... [2023-11-23 20:15:25,282 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:15:25" (1/1) ... [2023-11-23 20:15:25,282 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:15:25" (1/1) ... [2023-11-23 20:15:25,287 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:15:25" (1/1) ... [2023-11-23 20:15:25,291 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:15:25" (1/1) ... [2023-11-23 20:15:25,292 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:15:25" (1/1) ... [2023-11-23 20:15:25,294 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:15:25" (1/1) ... [2023-11-23 20:15:25,296 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:15:25,297 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:15:25,298 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:15:25,298 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:15:25,299 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:15:25" (1/1) ... [2023-11-23 20:15:25,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:15:25,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf89886-35a7-4ec7-8dcf-5908d73c7249/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:15:25,356 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf89886-35a7-4ec7-8dcf-5908d73c7249/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:15:25,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf89886-35a7-4ec7-8dcf-5908d73c7249/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:15:25,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:15:25,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:15:25,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:15:25,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:15:25,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 20:15:25,404 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 20:15:25,473 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:15:25,476 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:15:25,748 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:15:25,819 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:15:25,819 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 20:15:25,821 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:15:25 BoogieIcfgContainer [2023-11-23 20:15:25,830 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:15:25,831 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:15:25,831 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:15:25,842 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:15:25,842 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:15:25" (1/1) ... [2023-11-23 20:15:25,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:15:25,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:15:25,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2023-11-23 20:15:25,911 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2023-11-23 20:15:25,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-23 20:15:25,913 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:15:25,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:15:26,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:15:26,133 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 20:15:26,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:15:26,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 28 states and 39 transitions. [2023-11-23 20:15:26,204 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 39 transitions. [2023-11-23 20:15:26,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 20:15:26,204 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:15:26,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:15:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:15:26,260 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 20:15:26,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:15:26,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 29 states and 40 transitions. [2023-11-23 20:15:26,275 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2023-11-23 20:15:26,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 20:15:26,278 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:15:26,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:15:26,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:15:26,340 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 20:15:26,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:15:26,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 30 states and 40 transitions. [2023-11-23 20:15:26,358 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2023-11-23 20:15:26,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 20:15:26,359 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:15:26,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:15:26,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:15:26,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 20:15:26,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:15:26,549 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 20:15:26,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:15:26,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 38 states and 62 transitions. [2023-11-23 20:15:26,738 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2023-11-23 20:15:26,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 20:15:26,739 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:15:26,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:15:26,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:15:26,779 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 20:15:26,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:15:26,832 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 20:15:26,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:15:26,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 40 states and 64 transitions. [2023-11-23 20:15:26,911 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 64 transitions. [2023-11-23 20:15:26,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-23 20:15:26,912 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:15:26,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:15:27,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:15:27,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 20:15:27,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:15:27,133 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 20:15:27,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:15:27,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 49 states and 87 transitions. [2023-11-23 20:15:27,508 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 87 transitions. [2023-11-23 20:15:27,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-23 20:15:27,509 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:15:27,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:15:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:15:27,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 20:15:27,542 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:15:27,590 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 20:15:27,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:15:27,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 52 states and 90 transitions. [2023-11-23 20:15:27,741 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 90 transitions. [2023-11-23 20:15:27,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-23 20:15:27,744 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:15:27,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:15:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:15:27,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 20:15:27,778 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:15:27,913 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 20:15:28,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:15:28,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 62 states and 111 transitions. [2023-11-23 20:15:28,395 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 111 transitions. [2023-11-23 20:15:28,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-23 20:15:28,397 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:15:28,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:15:28,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:15:28,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 20:15:28,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:15:28,665 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 20:15:29,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:15:29,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 69 states and 125 transitions. [2023-11-23 20:15:29,164 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 125 transitions. [2023-11-23 20:15:29,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-23 20:15:29,168 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:15:29,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:15:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:15:29,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 20:15:29,211 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:15:29,315 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 20:15:29,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:15:29,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 76 states and 133 transitions. [2023-11-23 20:15:29,830 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 133 transitions. [2023-11-23 20:15:29,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-23 20:15:29,832 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:15:29,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:15:29,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:15:29,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 20:15:29,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:15:30,011 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:15:30,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:15:30,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 84 states and 148 transitions. [2023-11-23 20:15:30,475 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 148 transitions. [2023-11-23 20:15:30,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-23 20:15:30,477 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:15:30,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:15:30,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:15:30,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 20:15:30,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:15:30,653 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:15:31,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:15:31,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 71 states and 123 transitions. [2023-11-23 20:15:31,030 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 123 transitions. [2023-11-23 20:15:31,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-23 20:15:31,032 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:15:31,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:15:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:15:31,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 20:15:31,068 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:15:31,156 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:15:31,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:15:31,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 63 states and 110 transitions. [2023-11-23 20:15:31,354 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 110 transitions. [2023-11-23 20:15:31,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-23 20:15:31,356 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:15:31,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:15:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:15:31,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 20:15:31,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:15:31,536 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-23 20:15:31,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:15:31,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 55 states and 93 transitions. [2023-11-23 20:15:31,740 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 93 transitions. [2023-11-23 20:15:31,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-23 20:15:31,741 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:15:31,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:15:31,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:15:31,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 20:15:31,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:15:31,968 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:15:32,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:15:32,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 58 states and 97 transitions. [2023-11-23 20:15:32,430 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 97 transitions. [2023-11-23 20:15:32,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-23 20:15:32,431 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:15:32,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:15:32,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:15:32,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 20:15:32,472 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:15:32,593 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 44 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-23 20:15:33,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:15:33,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 49 states and 73 transitions. [2023-11-23 20:15:33,243 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 73 transitions. [2023-11-23 20:15:33,244 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 20:15:33,244 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 17 iterations. [2023-11-23 20:15:33,256 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-23 20:15:33,423 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:15:33,427 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:15:33,428 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:15:33,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:15:33 ImpRootNode [2023-11-23 20:15:33,429 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:15:33,430 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:15:33,430 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:15:33,431 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:15:33,431 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:15:25" (3/4) ... [2023-11-23 20:15:33,433 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:15:33,438 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-23 20:15:33,444 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-23 20:15:33,445 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-23 20:15:33,445 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 20:15:33,446 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:15:33,586 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf89886-35a7-4ec7-8dcf-5908d73c7249/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:15:33,587 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf89886-35a7-4ec7-8dcf-5908d73c7249/bin/ukojak-verify-1t5iHCbJaC/witness.yml [2023-11-23 20:15:33,587 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:15:33,588 INFO L158 Benchmark]: Toolchain (without parser) took 8728.64ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 119.9MB in the beginning and 135.5MB in the end (delta: -15.7MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2023-11-23 20:15:33,589 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 111.1MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:15:33,590 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.15ms. Allocated memory is still 155.2MB. Free memory was 119.9MB in the beginning and 109.2MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 20:15:33,590 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.74ms. Allocated memory is still 155.2MB. Free memory was 108.7MB in the beginning and 107.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:15:33,591 INFO L158 Benchmark]: Boogie Preprocessor took 38.42ms. Allocated memory is still 155.2MB. Free memory was 107.3MB in the beginning and 106.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:15:33,592 INFO L158 Benchmark]: RCFGBuilder took 532.84ms. Allocated memory is still 155.2MB. Free memory was 106.2MB in the beginning and 118.5MB in the end (delta: -12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 20:15:33,592 INFO L158 Benchmark]: CodeCheck took 7598.68ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 118.5MB in the beginning and 140.8MB in the end (delta: -22.3MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2023-11-23 20:15:33,593 INFO L158 Benchmark]: Witness Printer took 157.47ms. Allocated memory is still 186.6MB. Free memory was 140.8MB in the beginning and 135.5MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 20:15:33,596 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, 26 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 7.4s, OverallIterations: 17, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1263 SdHoareTripleChecker+Valid, 6.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 860 mSDsluCounter, 1393 SdHoareTripleChecker+Invalid, 5.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 713 mSDsCounter, 1339 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3324 IncrementalHoareTripleChecker+Invalid, 4663 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1339 mSolverCounterUnsat, 680 mSDtfsCounter, 3324 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3329 GetRequests, 2982 SyntacticMatches, 225 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8459 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 367 NumberOfCodeBlocks, 367 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 351 ConstructedInterpolants, 0 QuantifiedInterpolants, 1055 SizeOfPredicates, 47 NumberOfNonLiveVariables, 1218 ConjunctsInSsa, 76 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 269/349 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: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: 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: 45]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 60]: 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 111.1MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.15ms. Allocated memory is still 155.2MB. Free memory was 119.9MB in the beginning and 109.2MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.74ms. Allocated memory is still 155.2MB. Free memory was 108.7MB in the beginning and 107.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.42ms. Allocated memory is still 155.2MB. Free memory was 107.3MB in the beginning and 106.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 532.84ms. Allocated memory is still 155.2MB. Free memory was 106.2MB in the beginning and 118.5MB in the end (delta: -12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 7598.68ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 118.5MB in the beginning and 140.8MB in the end (delta: -22.3MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * Witness Printer took 157.47ms. Allocated memory is still 186.6MB. Free memory was 140.8MB in the beginning and 135.5MB 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 20:15:33,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf89886-35a7-4ec7-8dcf-5908d73c7249/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