./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/divbin_valuebound2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cffcdfc-2342-4480-8b7c-40254599a679/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cffcdfc-2342-4480-8b7c-40254599a679/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cffcdfc-2342-4480-8b7c-40254599a679/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cffcdfc-2342-4480-8b7c-40254599a679/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/divbin_valuebound2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cffcdfc-2342-4480-8b7c-40254599a679/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cffcdfc-2342-4480-8b7c-40254599a679/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1f6ee705374b9304c4ad35807ad9bde4a154c7f85315159d7da4519e0aae9554 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:31:18,773 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:31:18,840 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cffcdfc-2342-4480-8b7c-40254599a679/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 01:31:18,844 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 01:31:18,845 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 01:31:18,868 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:31:18,869 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 01:31:18,870 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 01:31:18,871 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:31:18,871 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:31:18,872 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:31:18,872 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:31:18,873 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 01:31:18,873 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 01:31:18,874 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 01:31:18,874 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:31:18,875 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:31:18,875 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:31:18,876 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:31:18,876 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 01:31:18,877 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:31:18,881 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:31:18,881 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:31:18,882 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:31:18,882 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:31:18,882 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:31:18,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:31:18,883 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:31:18,884 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:31:18,884 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 01:31:18,884 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 01:31:18,885 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 01:31:18,885 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 01:31:18,885 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_0cffcdfc-2342-4480-8b7c-40254599a679/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cffcdfc-2342-4480-8b7c-40254599a679/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f6ee705374b9304c4ad35807ad9bde4a154c7f85315159d7da4519e0aae9554 [2023-12-03 01:31:19,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:31:19,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:31:19,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:31:19,125 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:31:19,125 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:31:19,127 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cffcdfc-2342-4480-8b7c-40254599a679/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/divbin_valuebound2.i [2023-12-03 01:31:21,930 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:31:22,093 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:31:22,094 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cffcdfc-2342-4480-8b7c-40254599a679/sv-benchmarks/c/nla-digbench-scaling/divbin_valuebound2.i [2023-12-03 01:31:22,102 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cffcdfc-2342-4480-8b7c-40254599a679/bin/ukojak-verify-Qdu7aM0XO9/data/babeaccfd/c529402233ae4fc4b52708dbcd84f0bb/FLAG4af09bf18 [2023-12-03 01:31:22,115 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cffcdfc-2342-4480-8b7c-40254599a679/bin/ukojak-verify-Qdu7aM0XO9/data/babeaccfd/c529402233ae4fc4b52708dbcd84f0bb [2023-12-03 01:31:22,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:31:22,118 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:31:22,119 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:31:22,119 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:31:22,123 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:31:22,123 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:31:22" (1/1) ... [2023-12-03 01:31:22,124 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@125081e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:31:22, skipping insertion in model container [2023-12-03 01:31:22,124 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:31:22" (1/1) ... [2023-12-03 01:31:22,144 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:31:22,296 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cffcdfc-2342-4480-8b7c-40254599a679/sv-benchmarks/c/nla-digbench-scaling/divbin_valuebound2.i[950,963] [2023-12-03 01:31:22,311 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:31:22,321 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:31:22,334 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cffcdfc-2342-4480-8b7c-40254599a679/sv-benchmarks/c/nla-digbench-scaling/divbin_valuebound2.i[950,963] [2023-12-03 01:31:22,341 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:31:22,356 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:31:22,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:31:22 WrapperNode [2023-12-03 01:31:22,356 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:31:22,357 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:31:22,358 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:31:22,358 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:31:22,365 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:31:22" (1/1) ... [2023-12-03 01:31:22,371 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:31:22" (1/1) ... [2023-12-03 01:31:22,385 INFO L138 Inliner]: procedures = 16, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 48 [2023-12-03 01:31:22,385 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:31:22,386 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:31:22,386 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:31:22,386 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:31:22,392 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:31:22" (1/1) ... [2023-12-03 01:31:22,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:31:22" (1/1) ... [2023-12-03 01:31:22,394 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:31:22" (1/1) ... [2023-12-03 01:31:22,394 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:31:22" (1/1) ... [2023-12-03 01:31:22,396 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:31:22" (1/1) ... [2023-12-03 01:31:22,399 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:31:22" (1/1) ... [2023-12-03 01:31:22,400 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:31:22" (1/1) ... [2023-12-03 01:31:22,400 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:31:22" (1/1) ... [2023-12-03 01:31:22,402 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:31:22,402 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:31:22,402 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:31:22,402 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:31:22,403 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:31:22" (1/1) ... [2023-12-03 01:31:22,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:31:22,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cffcdfc-2342-4480-8b7c-40254599a679/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:31:22,438 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cffcdfc-2342-4480-8b7c-40254599a679/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:31:22,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cffcdfc-2342-4480-8b7c-40254599a679/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:31:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:31:22,479 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-03 01:31:22,479 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-03 01:31:22,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 01:31:22,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:31:22,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:31:22,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-03 01:31:22,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-03 01:31:22,538 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:31:22,540 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:31:22,662 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:31:22,709 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:31:22,709 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-03 01:31:22,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:31:22 BoogieIcfgContainer [2023-12-03 01:31:22,711 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:31:22,712 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:31:22,712 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:31:22,722 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:31:22,722 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:31:22" (1/1) ... [2023-12-03 01:31:22,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:31:22,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:31:22,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2023-12-03 01:31:22,789 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2023-12-03 01:31:22,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-03 01:31:22,794 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:31:22,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:31:22,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:31:22,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:31:22,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:31:22,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:31:22,998 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-03 01:31:23,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:31:23,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2023-12-03 01:31:23,029 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2023-12-03 01:31:23,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-03 01:31:23,030 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:31:23,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:31:23,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:31:23,089 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-03 01:31:23,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:31:23,356 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-03 01:31:23,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:31:23,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 27 states and 36 transitions. [2023-12-03 01:31:23,660 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2023-12-03 01:31:23,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-03 01:31:23,662 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:31:23,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:31:23,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:31:23,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 01:31:23,703 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:31:23,802 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-03 01:31:24,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:31:24,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 31 states and 42 transitions. [2023-12-03 01:31:24,049 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2023-12-03 01:31:24,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-12-03 01:31:24,050 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:31:24,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:31:24,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:31:24,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 01:31:24,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:31:24,120 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-03 01:31:24,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:31:24,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 36 states and 52 transitions. [2023-12-03 01:31:24,683 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 52 transitions. [2023-12-03 01:31:24,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-03 01:31:24,684 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:31:24,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:31:24,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:31:24,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-03 01:31:24,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:31:25,954 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-03 01:31:28,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:31:28,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 41 states and 64 transitions. [2023-12-03 01:31:28,937 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 64 transitions. [2023-12-03 01:31:28,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-03 01:31:28,938 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:31:28,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:31:29,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:31:29,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-03 01:31:29,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:31:30,705 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-03 01:31:36,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:31:36,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 49 states and 82 transitions. [2023-12-03 01:31:36,101 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 82 transitions. [2023-12-03 01:31:36,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-03 01:31:36,103 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:31:36,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:31:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:31:36,470 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-03 01:31:36,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:31:38,965 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-03 01:31:53,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 01:31:53,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:31:53,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 57 states and 98 transitions. [2023-12-03 01:31:53,840 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 98 transitions. [2023-12-03 01:31:53,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-03 01:31:53,841 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:31:53,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:31:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:31:54,298 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-03 01:31:54,300 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:31:59,956 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 13 proven. 17 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-03 01:32:23,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:32:23,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 39 states and 51 transitions. [2023-12-03 01:32:23,422 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 51 transitions. [2023-12-03 01:32:23,423 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-03 01:32:23,423 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2023-12-03 01:32:23,428 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-12-03 01:32:36,713 WARN L293 SmtUtils]: Spent 11.10s on a formula simplification. DAG size of input: 104 DAG size of output: 1 (called from [L 649] de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.computeHoareAnnotation) [2023-12-03 01:32:41,929 WARN L293 SmtUtils]: Spent 5.20s on a formula simplification. DAG size of input: 104 DAG size of output: 1 (called from [L 649] de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.computeHoareAnnotation) [2023-12-03 01:32:42,218 INFO L560 CodeCheckObserver]: Invariant with dag size 36 [2023-12-03 01:32:42,225 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 01:32:42,225 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 01:32:42,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 01:32:42 ImpRootNode [2023-12-03 01:32:42,226 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 01:32:42,226 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 01:32:42,226 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 01:32:42,226 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 01:32:42,227 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:31:22" (3/4) ... [2023-12-03 01:32:42,228 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-03 01:32:42,230 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-12-03 01:32:42,230 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-12-03 01:32:42,233 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-12-03 01:32:42,233 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-12-03 01:32:42,233 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-03 01:32:42,234 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 01:32:42,316 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cffcdfc-2342-4480-8b7c-40254599a679/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 01:32:42,317 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cffcdfc-2342-4480-8b7c-40254599a679/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-03 01:32:42,317 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 01:32:42,318 INFO L158 Benchmark]: Toolchain (without parser) took 80199.81ms. Allocated memory was 178.3MB in the beginning and 287.3MB in the end (delta: 109.1MB). Free memory was 141.9MB in the beginning and 153.5MB in the end (delta: -11.6MB). Peak memory consumption was 98.0MB. Max. memory is 16.1GB. [2023-12-03 01:32:42,318 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 113.2MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:32:42,319 INFO L158 Benchmark]: CACSL2BoogieTranslator took 237.87ms. Allocated memory is still 178.3MB. Free memory was 141.9MB in the beginning and 130.9MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 01:32:42,319 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.93ms. Allocated memory is still 178.3MB. Free memory was 130.9MB in the beginning and 129.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 01:32:42,320 INFO L158 Benchmark]: Boogie Preprocessor took 15.87ms. Allocated memory is still 178.3MB. Free memory was 129.4MB in the beginning and 128.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:32:42,320 INFO L158 Benchmark]: RCFGBuilder took 308.88ms. Allocated memory is still 178.3MB. Free memory was 128.3MB in the beginning and 115.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-03 01:32:42,321 INFO L158 Benchmark]: CodeCheck took 79513.61ms. Allocated memory was 178.3MB in the beginning and 287.3MB in the end (delta: 109.1MB). Free memory was 115.2MB in the beginning and 158.7MB in the end (delta: -43.5MB). Peak memory consumption was 68.7MB. Max. memory is 16.1GB. [2023-12-03 01:32:42,321 INFO L158 Benchmark]: Witness Printer took 91.18ms. Allocated memory is still 287.3MB. Free memory was 158.7MB in the beginning and 153.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 01:32:42,324 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 3 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 60.7s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 631 SdHoareTripleChecker+Valid, 16.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 197 mSDsluCounter, 514 SdHoareTripleChecker+Invalid, 15.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 218 mSDsCounter, 391 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1230 IncrementalHoareTripleChecker+Invalid, 1621 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 391 mSolverCounterUnsat, 296 mSDtfsCounter, 1230 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2325 GetRequests, 2157 SyntacticMatches, 36 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7812 ImplicationChecksByTransitivity, 49.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 10.9s InterpolantComputationTime, 256 NumberOfCodeBlocks, 256 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 248 ConstructedInterpolants, 2 QuantifiedInterpolants, 1737 SizeOfPredicates, 27 NumberOfNonLiveVariables, 704 ConjunctsInSsa, 163 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 137/185 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: (((!((((((A % 4294967296) <= 2) && (q == 0)) && (1 <= (b % 4294967296))) && (A == r))) || (B == b)) || ((((b / 2) % 4294967296) <= (r % 4294967296)) && (b == (2 * B)))) || ((((B % 4294967296) <= (r % 4294967296)) && ((2 * (B % 2147483648)) <= (r % 4294967296))) && (b == (B * 4)))) - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 113.2MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 237.87ms. Allocated memory is still 178.3MB. Free memory was 141.9MB in the beginning and 130.9MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.93ms. Allocated memory is still 178.3MB. Free memory was 130.9MB in the beginning and 129.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.87ms. Allocated memory is still 178.3MB. Free memory was 129.4MB in the beginning and 128.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 308.88ms. Allocated memory is still 178.3MB. Free memory was 128.3MB in the beginning and 115.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 79513.61ms. Allocated memory was 178.3MB in the beginning and 287.3MB in the end (delta: 109.1MB). Free memory was 115.2MB in the beginning and 158.7MB in the end (delta: -43.5MB). Peak memory consumption was 68.7MB. Max. memory is 16.1GB. * Witness Printer took 91.18ms. Allocated memory is still 287.3MB. Free memory was 158.7MB in the beginning and 153.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-03 01:32:42,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cffcdfc-2342-4480-8b7c-40254599a679/bin/ukojak-verify-Qdu7aM0XO9/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