./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 9bd2c7ff 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_11f565f2-ec43-4e95-a7e8-eaa2ec5d1140/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11f565f2-ec43-4e95-a7e8-eaa2ec5d1140/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11f565f2-ec43-4e95-a7e8-eaa2ec5d1140/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11f565f2-ec43-4e95-a7e8-eaa2ec5d1140/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/divbin_valuebound2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11f565f2-ec43-4e95-a7e8-eaa2ec5d1140/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11f565f2-ec43-4e95-a7e8-eaa2ec5d1140/bin/ukojak-verify-G8NBE6pJGL --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 0.2.3-dev-9bd2c7f [2023-11-19 03:15:01,595 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:15:01,676 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11f565f2-ec43-4e95-a7e8-eaa2ec5d1140/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:15:01,681 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:15:01,682 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:15:01,713 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:15:01,717 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:15:01,718 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:15:01,720 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:15:01,724 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:15:01,725 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:15:01,726 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:15:01,726 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:15:01,728 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:15:01,728 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:15:01,729 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:15:01,729 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:15:01,730 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:15:01,730 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:15:01,730 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:15:01,731 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:15:01,745 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:15:01,746 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:15:01,746 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:15:01,746 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:15:01,747 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:15:01,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:15:01,748 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:15:01,748 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:15:01,749 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:15:01,749 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:15:01,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:15:01,750 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:15:01,750 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_11f565f2-ec43-4e95-a7e8-eaa2ec5d1140/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11f565f2-ec43-4e95-a7e8-eaa2ec5d1140/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f6ee705374b9304c4ad35807ad9bde4a154c7f85315159d7da4519e0aae9554 [2023-11-19 03:15:02,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:15:02,050 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:15:02,052 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:15:02,053 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:15:02,054 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:15:02,055 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11f565f2-ec43-4e95-a7e8-eaa2ec5d1140/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench-scaling/divbin_valuebound2.i [2023-11-19 03:15:05,103 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:15:05,349 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:15:05,350 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11f565f2-ec43-4e95-a7e8-eaa2ec5d1140/sv-benchmarks/c/nla-digbench-scaling/divbin_valuebound2.i [2023-11-19 03:15:05,357 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11f565f2-ec43-4e95-a7e8-eaa2ec5d1140/bin/ukojak-verify-G8NBE6pJGL/data/86b3d3067/bae545f0313f4b01b23b41fb24404895/FLAGe767379db [2023-11-19 03:15:05,382 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11f565f2-ec43-4e95-a7e8-eaa2ec5d1140/bin/ukojak-verify-G8NBE6pJGL/data/86b3d3067/bae545f0313f4b01b23b41fb24404895 [2023-11-19 03:15:05,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:15:05,386 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:15:05,388 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:15:05,388 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:15:05,394 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:15:05,395 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:15:05" (1/1) ... [2023-11-19 03:15:05,396 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75bb3a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:05, skipping insertion in model container [2023-11-19 03:15:05,396 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:15:05" (1/1) ... [2023-11-19 03:15:05,423 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:15:05,576 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_11f565f2-ec43-4e95-a7e8-eaa2ec5d1140/sv-benchmarks/c/nla-digbench-scaling/divbin_valuebound2.i[950,963] [2023-11-19 03:15:05,592 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:15:05,603 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:15:05,615 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_11f565f2-ec43-4e95-a7e8-eaa2ec5d1140/sv-benchmarks/c/nla-digbench-scaling/divbin_valuebound2.i[950,963] [2023-11-19 03:15:05,622 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:15:05,634 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:15:05,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:05 WrapperNode [2023-11-19 03:15:05,635 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:15:05,636 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:15:05,636 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:15:05,637 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:15:05,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:05" (1/1) ... [2023-11-19 03:15:05,650 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:05" (1/1) ... [2023-11-19 03:15:05,665 INFO L138 Inliner]: procedures = 16, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 48 [2023-11-19 03:15:05,666 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:15:05,666 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:15:05,667 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:15:05,667 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:15:05,674 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:05" (1/1) ... [2023-11-19 03:15:05,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:05" (1/1) ... [2023-11-19 03:15:05,675 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:05" (1/1) ... [2023-11-19 03:15:05,676 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:05" (1/1) ... [2023-11-19 03:15:05,679 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:05" (1/1) ... [2023-11-19 03:15:05,683 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:05" (1/1) ... [2023-11-19 03:15:05,684 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:05" (1/1) ... [2023-11-19 03:15:05,685 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:05" (1/1) ... [2023-11-19 03:15:05,687 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:15:05,688 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:15:05,688 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:15:05,688 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:15:05,689 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:05" (1/1) ... [2023-11-19 03:15:05,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:15:05,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11f565f2-ec43-4e95-a7e8-eaa2ec5d1140/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:15:05,728 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11f565f2-ec43-4e95-a7e8-eaa2ec5d1140/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:15:05,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11f565f2-ec43-4e95-a7e8-eaa2ec5d1140/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:15:05,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:15:05,761 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 03:15:05,761 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 03:15:05,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:15:05,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:15:05,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:15:05,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 03:15:05,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 03:15:05,825 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:15:05,827 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:15:06,052 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:15:06,113 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:15:06,114 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 03:15:06,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:15:06 BoogieIcfgContainer [2023-11-19 03:15:06,119 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:15:06,120 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:15:06,121 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:15:06,133 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:15:06,133 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:15:06" (1/1) ... [2023-11-19 03:15:06,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:15:06,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:06,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2023-11-19 03:15:06,199 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2023-11-19 03:15:06,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 03:15:06,204 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:06,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:06,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:06,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 03:15:06,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:15:06,438 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 03:15:06,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:06,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2023-11-19 03:15:06,508 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2023-11-19 03:15:06,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-19 03:15:06,509 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:06,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:06,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:06,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 03:15:06,631 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:15:06,873 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-19 03:15:07,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:07,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 27 states and 36 transitions. [2023-11-19 03:15:07,135 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2023-11-19 03:15:07,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-19 03:15:07,137 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:07,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:07,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:07,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 03:15:07,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:15:07,311 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 03:15:07,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:07,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 31 states and 42 transitions. [2023-11-19 03:15:07,726 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2023-11-19 03:15:07,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-19 03:15:07,727 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:07,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:07,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:07,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-19 03:15:07,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:15:08,146 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 03:15:09,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:09,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 36 states and 52 transitions. [2023-11-19 03:15:09,665 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 52 transitions. [2023-11-19 03:15:09,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 03:15:09,669 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:09,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:09,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:09,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-19 03:15:09,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:15:11,025 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-19 03:15:14,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:14,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 41 states and 61 transitions. [2023-11-19 03:15:14,027 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 61 transitions. [2023-11-19 03:15:14,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-19 03:15:14,029 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:14,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:14,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-19 03:15:14,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:15:14,962 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 03:15:20,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:20,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 49 states and 77 transitions. [2023-11-19 03:15:20,243 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 77 transitions. [2023-11-19 03:15:20,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-19 03:15:20,245 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:20,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:20,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:20,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 45 conjunts are in the unsatisfiable core [2023-11-19 03:15:20,408 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:15:22,292 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 03:15:27,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:27,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 57 states and 93 transitions. [2023-11-19 03:15:27,181 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 93 transitions. [2023-11-19 03:15:27,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-19 03:15:27,183 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:27,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:27,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:27,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-19 03:15:27,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:15:32,091 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 13 proven. 17 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-19 03:15:35,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:35,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 39 states and 49 transitions. [2023-11-19 03:15:35,750 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2023-11-19 03:15:35,751 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 03:15:35,751 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2023-11-19 03:15:35,760 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-19 03:15:36,284 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:15:36,288 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:15:36,288 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:15:36,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:15:36 ImpRootNode [2023-11-19 03:15:36,289 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:15:36,289 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:15:36,289 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:15:36,290 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:15:36,290 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:15:06" (3/4) ... [2023-11-19 03:15:36,294 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 03:15:36,297 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-19 03:15:36,298 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-19 03:15:36,304 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-19 03:15:36,305 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-19 03:15:36,305 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 03:15:36,305 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 03:15:36,420 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11f565f2-ec43-4e95-a7e8-eaa2ec5d1140/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:15:36,421 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11f565f2-ec43-4e95-a7e8-eaa2ec5d1140/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 03:15:36,421 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:15:36,422 INFO L158 Benchmark]: Toolchain (without parser) took 31035.65ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 132.0MB in the beginning and 63.6MB in the end (delta: 68.5MB). Peak memory consumption was 101.7MB. Max. memory is 16.1GB. [2023-11-19 03:15:36,422 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 125.8MB. Free memory is still 98.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:15:36,423 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.39ms. Allocated memory is still 159.4MB. Free memory was 131.3MB in the beginning and 120.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:15:36,423 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.85ms. Allocated memory is still 159.4MB. Free memory was 120.8MB in the beginning and 119.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:15:36,424 INFO L158 Benchmark]: Boogie Preprocessor took 20.65ms. Allocated memory is still 159.4MB. Free memory was 119.4MB in the beginning and 118.6MB in the end (delta: 795.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:15:36,424 INFO L158 Benchmark]: RCFGBuilder took 431.27ms. Allocated memory is still 159.4MB. Free memory was 118.1MB in the beginning and 123.6MB in the end (delta: -5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 03:15:36,425 INFO L158 Benchmark]: CodeCheck took 30168.47ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 123.6MB in the beginning and 67.7MB in the end (delta: 55.9MB). Peak memory consumption was 92.1MB. Max. memory is 16.1GB. [2023-11-19 03:15:36,425 INFO L158 Benchmark]: Witness Printer took 131.92ms. Allocated memory is still 192.9MB. Free memory was 67.7MB in the beginning and 63.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:15:36,433 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: 29.6s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 680 SdHoareTripleChecker+Valid, 7.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 218 mSDsluCounter, 526 SdHoareTripleChecker+Invalid, 6.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 214 mSDsCounter, 383 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1269 IncrementalHoareTripleChecker+Invalid, 1652 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 383 mSolverCounterUnsat, 312 mSDtfsCounter, 1269 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2299 GetRequests, 2122 SyntacticMatches, 49 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7277 ImplicationChecksByTransitivity, 22.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 9.5s InterpolantComputationTime, 256 NumberOfCodeBlocks, 256 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 248 ConstructedInterpolants, 2 QuantifiedInterpolants, 2246 SizeOfPredicates, 32 NumberOfNonLiveVariables, 712 ConjunctsInSsa, 193 ConjunctsInUnsatCore, 8 InterpolantComputations, 1 PerfectInterpolantSequences, 131/185 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: 1 - 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 0.29ms. Allocated memory is still 125.8MB. Free memory is still 98.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 247.39ms. Allocated memory is still 159.4MB. Free memory was 131.3MB in the beginning and 120.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.85ms. Allocated memory is still 159.4MB. Free memory was 120.8MB in the beginning and 119.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.65ms. Allocated memory is still 159.4MB. Free memory was 119.4MB in the beginning and 118.6MB in the end (delta: 795.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 431.27ms. Allocated memory is still 159.4MB. Free memory was 118.1MB in the beginning and 123.6MB in the end (delta: -5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 30168.47ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 123.6MB in the beginning and 67.7MB in the end (delta: 55.9MB). Peak memory consumption was 92.1MB. Max. memory is 16.1GB. * Witness Printer took 131.92ms. Allocated memory is still 192.9MB. Free memory was 67.7MB in the beginning and 63.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 03:15:36,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11f565f2-ec43-4e95-a7e8-eaa2ec5d1140/bin/ukojak-verify-G8NBE6pJGL/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