./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label03.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_cd48c4d4-54b2-4f05-b0c4-caec0b0b04f4/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd48c4d4-54b2-4f05-b0c4-caec0b0b04f4/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_cd48c4d4-54b2-4f05-b0c4-caec0b0b04f4/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd48c4d4-54b2-4f05-b0c4-caec0b0b04f4/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd48c4d4-54b2-4f05-b0c4-caec0b0b04f4/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_cd48c4d4-54b2-4f05-b0c4-caec0b0b04f4/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 952556ed09eb97342c813289f4f977504950938040f886fc499d9dbce543872a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 00:15:44,224 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 00:15:44,289 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd48c4d4-54b2-4f05-b0c4-caec0b0b04f4/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 00:15:44,293 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 00:15:44,294 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 00:15:44,316 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 00:15:44,317 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 00:15:44,317 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 00:15:44,318 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 00:15:44,319 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 00:15:44,319 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 00:15:44,320 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 00:15:44,320 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 00:15:44,321 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 00:15:44,321 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 00:15:44,321 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 00:15:44,322 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 00:15:44,322 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 00:15:44,323 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 00:15:44,323 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 00:15:44,324 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 00:15:44,324 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 00:15:44,325 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 00:15:44,325 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 00:15:44,325 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 00:15:44,326 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 00:15:44,326 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:15:44,327 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 00:15:44,327 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 00:15:44,328 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 00:15:44,328 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 00:15:44,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 00:15:44,329 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 00:15:44,329 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_cd48c4d4-54b2-4f05-b0c4-caec0b0b04f4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd48c4d4-54b2-4f05-b0c4-caec0b0b04f4/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 952556ed09eb97342c813289f4f977504950938040f886fc499d9dbce543872a [2023-12-03 00:15:44,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 00:15:44,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 00:15:44,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 00:15:44,568 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 00:15:44,569 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 00:15:44,570 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd48c4d4-54b2-4f05-b0c4-caec0b0b04f4/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/eca-rers2012/Problem10_label03.c [2023-12-03 00:15:47,389 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 00:15:47,609 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 00:15:47,610 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd48c4d4-54b2-4f05-b0c4-caec0b0b04f4/sv-benchmarks/c/eca-rers2012/Problem10_label03.c [2023-12-03 00:15:47,624 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd48c4d4-54b2-4f05-b0c4-caec0b0b04f4/bin/ukojak-verify-Qdu7aM0XO9/data/534d8886a/5f59b9dd4c3347968e006e88e8457541/FLAG24ab7bfc2 [2023-12-03 00:15:47,638 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd48c4d4-54b2-4f05-b0c4-caec0b0b04f4/bin/ukojak-verify-Qdu7aM0XO9/data/534d8886a/5f59b9dd4c3347968e006e88e8457541 [2023-12-03 00:15:47,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 00:15:47,642 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 00:15:47,644 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 00:15:47,644 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 00:15:47,649 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 00:15:47,650 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:15:47" (1/1) ... [2023-12-03 00:15:47,651 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62cb3161 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:15:47, skipping insertion in model container [2023-12-03 00:15:47,651 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:15:47" (1/1) ... [2023-12-03 00:15:47,708 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 00:15:47,889 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_cd48c4d4-54b2-4f05-b0c4-caec0b0b04f4/sv-benchmarks/c/eca-rers2012/Problem10_label03.c[4220,4233] [2023-12-03 00:15:48,016 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:15:48,027 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 00:15:48,047 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_cd48c4d4-54b2-4f05-b0c4-caec0b0b04f4/sv-benchmarks/c/eca-rers2012/Problem10_label03.c[4220,4233] [2023-12-03 00:15:48,105 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:15:48,119 INFO L206 MainTranslator]: Completed translation [2023-12-03 00:15:48,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:15:48 WrapperNode [2023-12-03 00:15:48,119 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 00:15:48,120 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 00:15:48,120 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 00:15:48,121 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 00:15:48,127 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:15:48" (1/1) ... [2023-12-03 00:15:48,148 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:15:48" (1/1) ... [2023-12-03 00:15:48,222 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 598 [2023-12-03 00:15:48,223 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 00:15:48,223 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 00:15:48,224 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 00:15:48,224 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 00:15:48,233 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:15:48" (1/1) ... [2023-12-03 00:15:48,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:15:48" (1/1) ... [2023-12-03 00:15:48,239 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:15:48" (1/1) ... [2023-12-03 00:15:48,239 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:15:48" (1/1) ... [2023-12-03 00:15:48,270 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:15:48" (1/1) ... [2023-12-03 00:15:48,279 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:15:48" (1/1) ... [2023-12-03 00:15:48,284 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:15:48" (1/1) ... [2023-12-03 00:15:48,290 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:15:48" (1/1) ... [2023-12-03 00:15:48,299 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 00:15:48,300 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 00:15:48,301 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 00:15:48,301 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 00:15:48,302 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:15:48" (1/1) ... [2023-12-03 00:15:48,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:15:48,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd48c4d4-54b2-4f05-b0c4-caec0b0b04f4/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 00:15:48,334 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd48c4d4-54b2-4f05-b0c4-caec0b0b04f4/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 00:15:48,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd48c4d4-54b2-4f05-b0c4-caec0b0b04f4/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 00:15:48,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 00:15:48,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 00:15:48,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 00:15:48,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 00:15:48,426 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 00:15:48,428 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 00:15:49,298 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 00:15:51,448 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 00:15:51,449 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 00:15:51,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:15:51 BoogieIcfgContainer [2023-12-03 00:15:51,450 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 00:15:51,451 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 00:15:51,451 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 00:15:51,461 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 00:15:51,462 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:15:51" (1/1) ... [2023-12-03 00:15:51,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 00:15:51,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:15:51,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2023-12-03 00:15:51,520 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2023-12-03 00:15:51,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-03 00:15:51,522 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:15:51,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:15:51,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:15:51,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:15:51,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:15:51,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2023-12-03 00:15:51,779 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-12-03 00:15:51,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 00:15:51,780 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:15:51,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:15:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:16:02,406 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:16:02,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:16:02,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 19 states and 28 transitions. [2023-12-03 00:16:02,770 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 28 transitions. [2023-12-03 00:16:02,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 00:16:02,772 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:16:02,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:16:02,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:16:18,775 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:16:21,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:16:21,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 30 states and 51 transitions. [2023-12-03 00:16:21,027 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 51 transitions. [2023-12-03 00:16:21,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 00:16:21,028 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:16:21,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:16:21,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:16:36,145 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:16:36,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:16:36,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 33 states and 56 transitions. [2023-12-03 00:16:36,427 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 56 transitions. [2023-12-03 00:16:36,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-03 00:16:36,428 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:16:36,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:16:36,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:16:47,160 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-03 00:16:47,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:16:47,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 39 states and 69 transitions. [2023-12-03 00:16:47,725 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 69 transitions. [2023-12-03 00:16:47,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-03 00:16:47,726 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:16:47,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:16:47,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:16:59,022 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-03 00:16:59,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:16:59,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 42 states and 72 transitions. [2023-12-03 00:16:59,406 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 72 transitions. [2023-12-03 00:16:59,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-03 00:16:59,407 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:16:59,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:16:59,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:17:13,731 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-03 00:17:13,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:17:13,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 30 states and 52 transitions. [2023-12-03 00:17:13,987 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 52 transitions. [2023-12-03 00:17:13,988 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-03 00:17:13,988 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2023-12-03 00:17:13,994 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-12-03 00:17:14,249 INFO L560 CodeCheckObserver]: Invariant with dag size 24 [2023-12-03 00:17:14,256 INFO L560 CodeCheckObserver]: Invariant with dag size 20 [2023-12-03 00:17:14,257 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 00:17:14,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 12:17:14 ImpRootNode [2023-12-03 00:17:14,258 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 00:17:14,259 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 00:17:14,259 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 00:17:14,259 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 00:17:14,260 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:15:51" (3/4) ... [2023-12-03 00:17:14,262 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-03 00:17:14,280 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 196 nodes and edges [2023-12-03 00:17:14,282 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-12-03 00:17:14,284 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-03 00:17:14,286 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 00:17:14,446 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd48c4d4-54b2-4f05-b0c4-caec0b0b04f4/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 00:17:14,447 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd48c4d4-54b2-4f05-b0c4-caec0b0b04f4/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-03 00:17:14,447 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 00:17:14,447 INFO L158 Benchmark]: Toolchain (without parser) took 86804.94ms. Allocated memory was 155.2MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 100.6MB in the beginning and 900.9MB in the end (delta: -800.4MB). Peak memory consumption was 249.9MB. Max. memory is 16.1GB. [2023-12-03 00:17:14,448 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 109.1MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:17:14,448 INFO L158 Benchmark]: CACSL2BoogieTranslator took 475.84ms. Allocated memory is still 155.2MB. Free memory was 100.6MB in the beginning and 72.5MB in the end (delta: 28.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-12-03 00:17:14,449 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.53ms. Allocated memory is still 155.2MB. Free memory was 72.5MB in the beginning and 119.8MB in the end (delta: -47.2MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2023-12-03 00:17:14,449 INFO L158 Benchmark]: Boogie Preprocessor took 76.21ms. Allocated memory is still 155.2MB. Free memory was 119.8MB in the beginning and 115.0MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 00:17:14,449 INFO L158 Benchmark]: RCFGBuilder took 3149.97ms. Allocated memory was 155.2MB in the beginning and 255.9MB in the end (delta: 100.7MB). Free memory was 115.0MB in the beginning and 156.3MB in the end (delta: -41.3MB). Peak memory consumption was 160.1MB. Max. memory is 16.1GB. [2023-12-03 00:17:14,450 INFO L158 Benchmark]: CodeCheck took 82806.98ms. Allocated memory was 255.9MB in the beginning and 1.2GB in the end (delta: 947.9MB). Free memory was 156.3MB in the beginning and 914.5MB in the end (delta: -758.2MB). Peak memory consumption was 189.6MB. Max. memory is 16.1GB. [2023-12-03 00:17:14,450 INFO L158 Benchmark]: Witness Printer took 187.96ms. Allocated memory is still 1.2GB. Free memory was 914.5MB in the beginning and 900.9MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-03 00:17:14,452 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 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 82.5s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 277 SdHoareTripleChecker+Valid, 11.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 241 mSDsluCounter, 283 SdHoareTripleChecker+Invalid, 11.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 170 mSDsCounter, 141 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 690 IncrementalHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 141 mSolverCounterUnsat, 113 mSDtfsCounter, 690 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 912 GetRequests, 792 SyntacticMatches, 44 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2642 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 77.6s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 966 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 56/101 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: 122]: 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: 592]: Loop Invariant Derived loop invariant: (((((14 == a4) && ((a19 < 6) || !((a10 == 1)))) && (a12 == 0)) || (((7 <= a19) && (14 == a4)) && (a12 == 0))) || (((14 == a4) && (a12 == 0)) && (0 < (a1 + 13)))) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((!((a19 == 6)) || !((a10 == 1))) || (0 < (a1 + 13))) && (14 == a4)) && (a12 == 0)) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 109.1MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 475.84ms. Allocated memory is still 155.2MB. Free memory was 100.6MB in the beginning and 72.5MB in the end (delta: 28.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 102.53ms. Allocated memory is still 155.2MB. Free memory was 72.5MB in the beginning and 119.8MB in the end (delta: -47.2MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.21ms. Allocated memory is still 155.2MB. Free memory was 119.8MB in the beginning and 115.0MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 3149.97ms. Allocated memory was 155.2MB in the beginning and 255.9MB in the end (delta: 100.7MB). Free memory was 115.0MB in the beginning and 156.3MB in the end (delta: -41.3MB). Peak memory consumption was 160.1MB. Max. memory is 16.1GB. * CodeCheck took 82806.98ms. Allocated memory was 255.9MB in the beginning and 1.2GB in the end (delta: 947.9MB). Free memory was 156.3MB in the beginning and 914.5MB in the end (delta: -758.2MB). Peak memory consumption was 189.6MB. Max. memory is 16.1GB. * Witness Printer took 187.96ms. Allocated memory is still 1.2GB. Free memory was 914.5MB in the beginning and 900.9MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-03 00:17:14,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd48c4d4-54b2-4f05-b0c4-caec0b0b04f4/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