./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_c256103c-aeec-4ea2-b446-a0ba348b6f3e/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c256103c-aeec-4ea2-b446-a0ba348b6f3e/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c256103c-aeec-4ea2-b446-a0ba348b6f3e/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c256103c-aeec-4ea2-b446-a0ba348b6f3e/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c256103c-aeec-4ea2-b446-a0ba348b6f3e/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c256103c-aeec-4ea2-b446-a0ba348b6f3e/bin/ukojak-verify-afCqCEvfdi --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 87608ec580cc80a59c7836f9aeadd0fc773dea5ebb620dd020651936daa4e397 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:57:51,638 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:57:51,758 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c256103c-aeec-4ea2-b446-a0ba348b6f3e/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 22:57:51,764 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:57:51,767 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:57:51,806 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:57:51,807 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:57:51,807 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:57:51,808 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:57:51,809 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:57:51,810 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:57:51,810 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:57:51,811 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:57:51,811 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:57:51,812 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:57:51,813 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:57:51,813 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:57:51,814 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:57:51,814 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:57:51,815 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:57:51,815 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:57:51,816 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:57:51,817 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:57:51,817 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:57:51,817 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:57:51,818 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:57:51,819 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:57:51,819 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:57:51,820 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:57:51,820 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:57:51,821 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:57:51,821 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:57:51,821 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:57:51,822 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_c256103c-aeec-4ea2-b446-a0ba348b6f3e/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c256103c-aeec-4ea2-b446-a0ba348b6f3e/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87608ec580cc80a59c7836f9aeadd0fc773dea5ebb620dd020651936daa4e397 [2023-11-24 22:57:52,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:57:52,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:57:52,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:57:52,155 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:57:52,156 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:57:52,158 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c256103c-aeec-4ea2-b446-a0ba348b6f3e/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound1.c [2023-11-24 22:57:55,365 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:57:55,605 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:57:55,606 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c256103c-aeec-4ea2-b446-a0ba348b6f3e/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound1.c [2023-11-24 22:57:55,614 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c256103c-aeec-4ea2-b446-a0ba348b6f3e/bin/ukojak-verify-afCqCEvfdi/data/b0a0bde81/b95ce84ca00e49d18bec4dd4c1134820/FLAG3d7552c6e [2023-11-24 22:57:55,627 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c256103c-aeec-4ea2-b446-a0ba348b6f3e/bin/ukojak-verify-afCqCEvfdi/data/b0a0bde81/b95ce84ca00e49d18bec4dd4c1134820 [2023-11-24 22:57:55,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:57:55,631 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:57:55,632 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:57:55,633 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:57:55,640 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:57:55,641 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:57:55" (1/1) ... [2023-11-24 22:57:55,642 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39335740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:55, skipping insertion in model container [2023-11-24 22:57:55,643 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:57:55" (1/1) ... [2023-11-24 22:57:55,667 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:57:55,867 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_c256103c-aeec-4ea2-b446-a0ba348b6f3e/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound1.c[458,471] [2023-11-24 22:57:55,908 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:57:55,920 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:57:55,935 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_c256103c-aeec-4ea2-b446-a0ba348b6f3e/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound1.c[458,471] [2023-11-24 22:57:55,952 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:57:55,966 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:57:55,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:55 WrapperNode [2023-11-24 22:57:55,967 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:57:55,968 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:57:55,968 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:57:55,968 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:57:55,977 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:55" (1/1) ... [2023-11-24 22:57:55,986 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:55" (1/1) ... [2023-11-24 22:57:56,005 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 36 [2023-11-24 22:57:56,006 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:57:56,007 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:57:56,007 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:57:56,007 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:57:56,017 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:55" (1/1) ... [2023-11-24 22:57:56,017 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:55" (1/1) ... [2023-11-24 22:57:56,019 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:55" (1/1) ... [2023-11-24 22:57:56,019 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:55" (1/1) ... [2023-11-24 22:57:56,023 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:55" (1/1) ... [2023-11-24 22:57:56,027 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:55" (1/1) ... [2023-11-24 22:57:56,028 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:55" (1/1) ... [2023-11-24 22:57:56,029 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:55" (1/1) ... [2023-11-24 22:57:56,031 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:57:56,041 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:57:56,041 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:57:56,041 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:57:56,042 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:55" (1/1) ... [2023-11-24 22:57:56,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:57:56,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c256103c-aeec-4ea2-b446-a0ba348b6f3e/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:57:56,085 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c256103c-aeec-4ea2-b446-a0ba348b6f3e/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:57:56,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c256103c-aeec-4ea2-b446-a0ba348b6f3e/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:57:56,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:57:56,132 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 22:57:56,132 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 22:57:56,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:57:56,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:57:56,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:57:56,133 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 22:57:56,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 22:57:56,213 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:57:56,217 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:57:56,390 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:57:56,439 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:57:56,440 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 22:57:56,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:57:56 BoogieIcfgContainer [2023-11-24 22:57:56,447 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:57:56,448 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:57:56,448 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:57:56,457 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:57:56,458 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:57:56" (1/1) ... [2023-11-24 22:57:56,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:57:56,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:56,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2023-11-24 22:57:56,523 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2023-11-24 22:57:56,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 22:57:56,528 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:56,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:56,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:56,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 22:57:56,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:57:56,735 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:57:56,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:56,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2023-11-24 22:57:56,778 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2023-11-24 22:57:56,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 22:57:56,779 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:56,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:56,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 22:57:56,834 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:57:56,952 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 22:57:57,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:57,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2023-11-24 22:57:57,098 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2023-11-24 22:57:57,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-24 22:57:57,100 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:57,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:57,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:57,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-24 22:57:57,177 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:57:57,780 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:57:58,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:58,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 38 transitions. [2023-11-24 22:57:58,101 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2023-11-24 22:57:58,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-24 22:57:58,105 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:58,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:58,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:58,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-24 22:57:58,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:57:58,301 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 22:57:58,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:58,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2023-11-24 22:57:58,716 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2023-11-24 22:57:58,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-24 22:57:58,718 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:58,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:58,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:58,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 22:57:58,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:57:58,975 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-24 22:57:59,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:59,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 35 states and 55 transitions. [2023-11-24 22:57:59,483 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 55 transitions. [2023-11-24 22:57:59,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-24 22:57:59,485 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:59,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:59,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:59,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 22:57:59,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:57:59,706 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-24 22:58:00,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:00,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 28 states and 36 transitions. [2023-11-24 22:58:00,733 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2023-11-24 22:58:00,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-24 22:58:00,735 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:00,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:58:00,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:00,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-24 22:58:00,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:00,978 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-24 22:58:02,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:02,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 22 states and 28 transitions. [2023-11-24 22:58:02,021 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2023-11-24 22:58:02,022 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 22:58:02,022 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2023-11-24 22:58:02,033 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-24 22:58:02,288 INFO L560 CodeCheckObserver]: Invariant with dag size 19 [2023-11-24 22:58:02,297 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 22:58:02,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:58:02 ImpRootNode [2023-11-24 22:58:02,299 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:58:02,300 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:58:02,301 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:58:02,301 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:58:02,302 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:57:56" (3/4) ... [2023-11-24 22:58:02,304 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 22:58:02,308 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-24 22:58:02,308 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-24 22:58:02,315 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-24 22:58:02,315 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-24 22:58:02,316 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-24 22:58:02,316 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 22:58:02,435 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c256103c-aeec-4ea2-b446-a0ba348b6f3e/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 22:58:02,436 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c256103c-aeec-4ea2-b446-a0ba348b6f3e/bin/ukojak-verify-afCqCEvfdi/witness.yml [2023-11-24 22:58:02,436 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:58:02,444 INFO L158 Benchmark]: Toolchain (without parser) took 6805.81ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 115.9MB in the beginning and 140.1MB in the end (delta: -24.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-24 22:58:02,445 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 113.2MB. Free memory is still 85.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:58:02,445 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.47ms. Allocated memory is still 153.1MB. Free memory was 115.5MB in the beginning and 104.6MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 22:58:02,446 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.71ms. Allocated memory is still 153.1MB. Free memory was 104.6MB in the beginning and 102.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:58:02,446 INFO L158 Benchmark]: Boogie Preprocessor took 24.35ms. Allocated memory is still 153.1MB. Free memory was 102.9MB in the beginning and 102.0MB in the end (delta: 949.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:58:02,446 INFO L158 Benchmark]: RCFGBuilder took 406.00ms. Allocated memory is still 153.1MB. Free memory was 102.0MB in the beginning and 117.3MB in the end (delta: -15.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 22:58:02,447 INFO L158 Benchmark]: CodeCheck took 5851.76ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 116.9MB in the beginning and 144.2MB in the end (delta: -27.3MB). Peak memory consumption was 105.3MB. Max. memory is 16.1GB. [2023-11-24 22:58:02,448 INFO L158 Benchmark]: Witness Printer took 135.73ms. Allocated memory is still 184.5MB. Free memory was 144.2MB in the beginning and 140.1MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 22:58:02,450 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, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.5s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 321 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 76 mSDsluCounter, 260 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 88 mSDsCounter, 185 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 534 IncrementalHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 185 mSolverCounterUnsat, 172 mSDtfsCounter, 534 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1207 GetRequests, 1125 SyntacticMatches, 6 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1976 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 147 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 458 SizeOfPredicates, 16 NumberOfNonLiveVariables, 501 ConjunctsInSsa, 89 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 55/64 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: 28]: Loop Invariant Derived loop invariant: (((!(((x == 1) && (y == 1))) || (c < 1)) || !(((0 <= k) && (k <= 1)))) || ((c <= 1) && (1 <= k))) - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 113.2MB. Free memory is still 85.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.47ms. Allocated memory is still 153.1MB. Free memory was 115.5MB in the beginning and 104.6MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.71ms. Allocated memory is still 153.1MB. Free memory was 104.6MB in the beginning and 102.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.35ms. Allocated memory is still 153.1MB. Free memory was 102.9MB in the beginning and 102.0MB in the end (delta: 949.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 406.00ms. Allocated memory is still 153.1MB. Free memory was 102.0MB in the beginning and 117.3MB in the end (delta: -15.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 5851.76ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 116.9MB in the beginning and 144.2MB in the end (delta: -27.3MB). Peak memory consumption was 105.3MB. Max. memory is 16.1GB. * Witness Printer took 135.73ms. Allocated memory is still 184.5MB. Free memory was 144.2MB in the beginning and 140.1MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-24 22:58:02,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c256103c-aeec-4ea2-b446-a0ba348b6f3e/bin/ukojak-verify-afCqCEvfdi/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