./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound1.c --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_d16f21ca-f23f-4974-9f10-2376ae22425a/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f21ca-f23f-4974-9f10-2376ae22425a/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_d16f21ca-f23f-4974-9f10-2376ae22425a/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f21ca-f23f-4974-9f10-2376ae22425a/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f21ca-f23f-4974-9f10-2376ae22425a/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_d16f21ca-f23f-4974-9f10-2376ae22425a/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 6835a6a52b399101fa57284de792210b11ef12afe0f3073436fba94237f48f05 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:48:15,121 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:48:15,188 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f21ca-f23f-4974-9f10-2376ae22425a/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-02 21:48:15,192 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 21:48:15,193 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 21:48:15,214 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:48:15,214 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 21:48:15,215 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 21:48:15,215 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:48:15,216 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:48:15,217 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:48:15,217 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:48:15,218 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 21:48:15,218 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 21:48:15,219 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 21:48:15,219 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:48:15,220 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:48:15,220 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:48:15,221 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:48:15,221 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 21:48:15,222 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:48:15,225 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:48:15,225 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:48:15,226 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:48:15,226 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:48:15,226 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:48:15,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:48:15,227 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:48:15,228 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:48:15,228 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 21:48:15,229 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 21:48:15,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 21:48:15,229 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 21:48:15,230 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_d16f21ca-f23f-4974-9f10-2376ae22425a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f21ca-f23f-4974-9f10-2376ae22425a/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6835a6a52b399101fa57284de792210b11ef12afe0f3073436fba94237f48f05 [2023-12-02 21:48:15,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:48:15,478 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:48:15,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:48:15,482 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:48:15,482 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:48:15,484 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f21ca-f23f-4974-9f10-2376ae22425a/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound1.c [2023-12-02 21:48:18,241 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:48:18,406 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:48:18,407 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f21ca-f23f-4974-9f10-2376ae22425a/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound1.c [2023-12-02 21:48:18,415 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f21ca-f23f-4974-9f10-2376ae22425a/bin/ukojak-verify-Qdu7aM0XO9/data/fc663287e/8de0b79a51784560945a763f0f4ec682/FLAGda08853f5 [2023-12-02 21:48:18,429 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f21ca-f23f-4974-9f10-2376ae22425a/bin/ukojak-verify-Qdu7aM0XO9/data/fc663287e/8de0b79a51784560945a763f0f4ec682 [2023-12-02 21:48:18,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:48:18,433 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:48:18,434 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:48:18,434 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:48:18,439 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:48:18,440 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:48:18" (1/1) ... [2023-12-02 21:48:18,441 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e23fde4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:48:18, skipping insertion in model container [2023-12-02 21:48:18,441 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:48:18" (1/1) ... [2023-12-02 21:48:18,462 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:48:18,605 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_d16f21ca-f23f-4974-9f10-2376ae22425a/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound1.c[458,471] [2023-12-02 21:48:18,619 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:48:18,629 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:48:18,651 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_d16f21ca-f23f-4974-9f10-2376ae22425a/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound1.c[458,471] [2023-12-02 21:48:18,656 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:48:18,672 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:48:18,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:48:18 WrapperNode [2023-12-02 21:48:18,673 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:48:18,674 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:48:18,675 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:48:18,675 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:48:18,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:48:18" (1/1) ... [2023-12-02 21:48:18,701 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:48:18" (1/1) ... [2023-12-02 21:48:18,718 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 38 [2023-12-02 21:48:18,719 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:48:18,719 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:48:18,720 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:48:18,720 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:48:18,728 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:48:18" (1/1) ... [2023-12-02 21:48:18,728 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:48:18" (1/1) ... [2023-12-02 21:48:18,729 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:48:18" (1/1) ... [2023-12-02 21:48:18,729 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:48:18" (1/1) ... [2023-12-02 21:48:18,732 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:48:18" (1/1) ... [2023-12-02 21:48:18,735 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:48:18" (1/1) ... [2023-12-02 21:48:18,736 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:48:18" (1/1) ... [2023-12-02 21:48:18,737 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:48:18" (1/1) ... [2023-12-02 21:48:18,738 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:48:18,739 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:48:18,739 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:48:18,740 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:48:18,740 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:48:18" (1/1) ... [2023-12-02 21:48:18,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:48:18,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f21ca-f23f-4974-9f10-2376ae22425a/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:48:18,769 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f21ca-f23f-4974-9f10-2376ae22425a/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:48:18,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f21ca-f23f-4974-9f10-2376ae22425a/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:48:18,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:48:18,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 21:48:18,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:48:18,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:48:18,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 21:48:18,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 21:48:18,871 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:48:18,873 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:48:18,980 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:48:19,001 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:48:19,001 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 21:48:19,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:48:19 BoogieIcfgContainer [2023-12-02 21:48:19,003 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:48:19,004 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:48:19,004 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:48:19,014 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:48:19,014 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:48:19" (1/1) ... [2023-12-02 21:48:19,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:48:19,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:48:19,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2023-12-02 21:48:19,075 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2023-12-02 21:48:19,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 21:48:19,079 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:48:19,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:48:19,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:48:19,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:48:19,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:48:19,192 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:48:19,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:48:19,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:48:19,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2023-12-02 21:48:19,222 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-12-02 21:48:19,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 21:48:19,223 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:48:19,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:48:19,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:48:19,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:48:19,276 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:48:19,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:48:19,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:48:19,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:48:19,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2023-12-02 21:48:19,360 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-12-02 21:48:19,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 21:48:19,360 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:48:19,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:48:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:48:19,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 21:48:19,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:48:19,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:48:19,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:48:19,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2023-12-02 21:48:19,701 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2023-12-02 21:48:19,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 21:48:19,703 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:48:19,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:48:19,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:48:19,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 21:48:19,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:48:19,845 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:48:20,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:48:20,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 25 states and 35 transitions. [2023-12-02 21:48:20,216 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2023-12-02 21:48:20,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 21:48:20,217 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:48:20,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:48:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:48:20,245 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 21:48:20,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:48:20,324 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:48:20,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:48:20,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 28 states and 40 transitions. [2023-12-02 21:48:20,731 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 40 transitions. [2023-12-02 21:48:20,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 21:48:20,732 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:48:20,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:48:20,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:48:20,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 21:48:20,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:48:20,813 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:48:21,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:48:21,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 18 states and 20 transitions. [2023-12-02 21:48:21,446 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2023-12-02 21:48:21,446 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 21:48:21,447 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2023-12-02 21:48:21,453 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-12-02 21:48:21,503 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-02 21:48:21,506 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-02 21:48:21,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 09:48:21 ImpRootNode [2023-12-02 21:48:21,506 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 21:48:21,507 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 21:48:21,507 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 21:48:21,507 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 21:48:21,508 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:48:19" (3/4) ... [2023-12-02 21:48:21,509 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 21:48:21,512 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-12-02 21:48:21,516 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-12-02 21:48:21,516 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-12-02 21:48:21,516 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 21:48:21,517 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 21:48:21,583 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f21ca-f23f-4974-9f10-2376ae22425a/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-02 21:48:21,584 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f21ca-f23f-4974-9f10-2376ae22425a/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-02 21:48:21,584 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 21:48:21,585 INFO L158 Benchmark]: Toolchain (without parser) took 3151.82ms. Allocated memory is still 163.6MB. Free memory was 125.2MB in the beginning and 64.5MB in the end (delta: 60.8MB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. [2023-12-02 21:48:21,585 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 111.1MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 21:48:21,586 INFO L158 Benchmark]: CACSL2BoogieTranslator took 239.29ms. Allocated memory is still 163.6MB. Free memory was 124.6MB in the beginning and 134.9MB in the end (delta: -10.3MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2023-12-02 21:48:21,586 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.53ms. Allocated memory is still 163.6MB. Free memory was 134.9MB in the beginning and 133.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 21:48:21,587 INFO L158 Benchmark]: Boogie Preprocessor took 19.13ms. Allocated memory is still 163.6MB. Free memory was 133.1MB in the beginning and 132.4MB in the end (delta: 668.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 21:48:21,587 INFO L158 Benchmark]: RCFGBuilder took 263.97ms. Allocated memory is still 163.6MB. Free memory was 132.4MB in the beginning and 121.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 21:48:21,588 INFO L158 Benchmark]: CodeCheck took 2502.44ms. Allocated memory is still 163.6MB. Free memory was 121.2MB in the beginning and 68.7MB in the end (delta: 52.5MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. [2023-12-02 21:48:21,588 INFO L158 Benchmark]: Witness Printer took 77.07ms. Allocated memory is still 163.6MB. Free memory was 68.7MB in the beginning and 64.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 21:48:21,591 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, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 156 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 126 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 105 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 291 IncrementalHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 105 mSolverCounterUnsat, 94 mSDtfsCounter, 291 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 567 GetRequests, 495 SyntacticMatches, 8 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1233 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 193 SizeOfPredicates, 5 NumberOfNonLiveVariables, 318 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 7/11 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: 12]: 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: 1 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 111.1MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 239.29ms. Allocated memory is still 163.6MB. Free memory was 124.6MB in the beginning and 134.9MB in the end (delta: -10.3MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.53ms. Allocated memory is still 163.6MB. Free memory was 134.9MB in the beginning and 133.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.13ms. Allocated memory is still 163.6MB. Free memory was 133.1MB in the beginning and 132.4MB in the end (delta: 668.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 263.97ms. Allocated memory is still 163.6MB. Free memory was 132.4MB in the beginning and 121.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 2502.44ms. Allocated memory is still 163.6MB. Free memory was 121.2MB in the beginning and 68.7MB in the end (delta: 52.5MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. * Witness Printer took 77.07ms. Allocated memory is still 163.6MB. Free memory was 68.7MB in the beginning and 64.5MB 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! [2023-12-02 21:48:21,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d16f21ca-f23f-4974-9f10-2376ae22425a/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