./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id_i5_o5-2.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_f20010f6-adbc-401b-8fd5-109ff81fc70b/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20010f6-adbc-401b-8fd5-109ff81fc70b/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_f20010f6-adbc-401b-8fd5-109ff81fc70b/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20010f6-adbc-401b-8fd5-109ff81fc70b/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_i5_o5-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20010f6-adbc-401b-8fd5-109ff81fc70b/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_f20010f6-adbc-401b-8fd5-109ff81fc70b/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 1be5a7d97aa41e02c549ddce0b54861696e25bfa9b91d41dbf151eb81f7686c7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 02:32:15,380 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 02:32:15,456 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20010f6-adbc-401b-8fd5-109ff81fc70b/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 02:32:15,460 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 02:32:15,461 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 02:32:15,484 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 02:32:15,485 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 02:32:15,486 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 02:32:15,487 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 02:32:15,487 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 02:32:15,488 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 02:32:15,488 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 02:32:15,489 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 02:32:15,489 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 02:32:15,489 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 02:32:15,490 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 02:32:15,490 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 02:32:15,491 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 02:32:15,491 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 02:32:15,492 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 02:32:15,492 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 02:32:15,493 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 02:32:15,494 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 02:32:15,494 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 02:32:15,495 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 02:32:15,495 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 02:32:15,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:32:15,496 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 02:32:15,496 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 02:32:15,497 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 02:32:15,497 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 02:32:15,497 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 02:32:15,498 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 02:32:15,498 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_f20010f6-adbc-401b-8fd5-109ff81fc70b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20010f6-adbc-401b-8fd5-109ff81fc70b/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1be5a7d97aa41e02c549ddce0b54861696e25bfa9b91d41dbf151eb81f7686c7 [2023-12-03 02:32:15,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 02:32:15,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 02:32:15,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 02:32:15,762 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 02:32:15,762 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 02:32:15,764 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20010f6-adbc-401b-8fd5-109ff81fc70b/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/recursive-simple/id_i5_o5-2.c [2023-12-03 02:32:18,536 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 02:32:18,681 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 02:32:18,681 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20010f6-adbc-401b-8fd5-109ff81fc70b/sv-benchmarks/c/recursive-simple/id_i5_o5-2.c [2023-12-03 02:32:18,686 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20010f6-adbc-401b-8fd5-109ff81fc70b/bin/ukojak-verify-Qdu7aM0XO9/data/e0db34dc3/648bf8780c014d77a730424e31588053/FLAGc6c835f1d [2023-12-03 02:32:18,697 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20010f6-adbc-401b-8fd5-109ff81fc70b/bin/ukojak-verify-Qdu7aM0XO9/data/e0db34dc3/648bf8780c014d77a730424e31588053 [2023-12-03 02:32:18,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 02:32:18,700 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 02:32:18,701 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 02:32:18,701 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 02:32:18,705 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 02:32:18,706 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:32:18" (1/1) ... [2023-12-03 02:32:18,707 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59d1960d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:32:18, skipping insertion in model container [2023-12-03 02:32:18,707 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:32:18" (1/1) ... [2023-12-03 02:32:18,723 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 02:32:18,870 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_f20010f6-adbc-401b-8fd5-109ff81fc70b/sv-benchmarks/c/recursive-simple/id_i5_o5-2.c[450,463] [2023-12-03 02:32:18,873 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:32:18,883 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 02:32:18,893 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_f20010f6-adbc-401b-8fd5-109ff81fc70b/sv-benchmarks/c/recursive-simple/id_i5_o5-2.c[450,463] [2023-12-03 02:32:18,894 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:32:18,904 INFO L206 MainTranslator]: Completed translation [2023-12-03 02:32:18,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:32:18 WrapperNode [2023-12-03 02:32:18,905 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 02:32:18,906 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 02:32:18,906 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 02:32:18,906 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 02:32:18,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:32:18" (1/1) ... [2023-12-03 02:32:18,918 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:32:18" (1/1) ... [2023-12-03 02:32:18,930 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2023-12-03 02:32:18,931 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 02:32:18,931 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 02:32:18,931 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 02:32:18,931 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 02:32:18,937 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:32:18" (1/1) ... [2023-12-03 02:32:18,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:32:18" (1/1) ... [2023-12-03 02:32:18,939 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:32:18" (1/1) ... [2023-12-03 02:32:18,939 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:32:18" (1/1) ... [2023-12-03 02:32:18,941 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:32:18" (1/1) ... [2023-12-03 02:32:18,942 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:32:18" (1/1) ... [2023-12-03 02:32:18,943 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:32:18" (1/1) ... [2023-12-03 02:32:18,944 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:32:18" (1/1) ... [2023-12-03 02:32:18,945 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 02:32:18,946 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 02:32:18,946 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 02:32:18,946 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 02:32:18,947 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:32:18" (1/1) ... [2023-12-03 02:32:18,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:32:18,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20010f6-adbc-401b-8fd5-109ff81fc70b/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 02:32:18,973 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20010f6-adbc-401b-8fd5-109ff81fc70b/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 02:32:18,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20010f6-adbc-401b-8fd5-109ff81fc70b/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 02:32:19,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 02:32:19,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 02:32:19,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 02:32:19,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 02:32:19,004 INFO L130 BoogieDeclarations]: Found specification of procedure id [2023-12-03 02:32:19,004 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2023-12-03 02:32:19,060 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 02:32:19,061 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 02:32:19,143 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 02:32:19,162 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 02:32:19,162 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 02:32:19,164 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:32:19 BoogieIcfgContainer [2023-12-03 02:32:19,164 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 02:32:19,165 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 02:32:19,165 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 02:32:19,176 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 02:32:19,176 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:32:19" (1/1) ... [2023-12-03 02:32:19,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 02:32:19,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:32:19,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2023-12-03 02:32:19,247 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-12-03 02:32:19,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 02:32:19,252 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:32:19,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:32:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:32:19,472 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 02:32:19,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:32:19,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 18 transitions. [2023-12-03 02:32:19,559 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-12-03 02:32:19,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-03 02:32:19,560 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:32:19,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:32:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:32:19,674 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 02:32:19,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:32:19,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 23 transitions. [2023-12-03 02:32:19,784 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2023-12-03 02:32:19,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-03 02:32:19,785 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:32:19,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:32:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:32:19,910 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-03 02:32:20,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:32:20,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 22 states and 29 transitions. [2023-12-03 02:32:20,017 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2023-12-03 02:32:20,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-03 02:32:20,019 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:32:20,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:32:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:32:20,153 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-03 02:32:20,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:32:20,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 25 states and 36 transitions. [2023-12-03 02:32:20,262 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 36 transitions. [2023-12-03 02:32:20,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-03 02:32:20,264 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:32:20,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:32:20,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:32:20,396 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-03 02:32:20,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:32:20,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 28 states and 44 transitions. [2023-12-03 02:32:20,558 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 44 transitions. [2023-12-03 02:32:20,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-03 02:32:20,561 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:32:20,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:32:20,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:32:20,979 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-03 02:32:23,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:32:23,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 47 states and 94 transitions. [2023-12-03 02:32:23,147 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 94 transitions. [2023-12-03 02:32:23,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-03 02:32:23,148 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:32:23,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:32:23,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:32:23,538 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-12-03 02:32:24,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:32:24,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 29 states and 31 transitions. [2023-12-03 02:32:24,871 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2023-12-03 02:32:24,871 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-03 02:32:24,872 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2023-12-03 02:32:24,880 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-12-03 02:32:24,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 02:32:24 ImpRootNode [2023-12-03 02:32:24,982 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 02:32:24,983 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 02:32:24,983 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 02:32:24,983 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 02:32:24,984 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:32:19" (3/4) ... [2023-12-03 02:32:24,985 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-03 02:32:24,989 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2023-12-03 02:32:24,992 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-12-03 02:32:24,992 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-12-03 02:32:24,993 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-03 02:32:24,993 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 02:32:25,067 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20010f6-adbc-401b-8fd5-109ff81fc70b/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 02:32:25,067 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20010f6-adbc-401b-8fd5-109ff81fc70b/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-03 02:32:25,068 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 02:32:25,068 INFO L158 Benchmark]: Toolchain (without parser) took 6367.76ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 147.7MB in the beginning and 183.2MB in the end (delta: -35.6MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. [2023-12-03 02:32:25,069 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 121.6MB. Free memory was 90.2MB in the beginning and 90.1MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 02:32:25,070 INFO L158 Benchmark]: CACSL2BoogieTranslator took 203.89ms. Allocated memory is still 184.5MB. Free memory was 147.7MB in the beginning and 150.2MB in the end (delta: -2.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-03 02:32:25,070 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.09ms. Allocated memory is still 184.5MB. Free memory was 150.2MB in the beginning and 148.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 02:32:25,071 INFO L158 Benchmark]: Boogie Preprocessor took 13.85ms. Allocated memory is still 184.5MB. Free memory was 148.8MB in the beginning and 148.1MB in the end (delta: 707.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 02:32:25,071 INFO L158 Benchmark]: RCFGBuilder took 218.37ms. Allocated memory is still 184.5MB. Free memory was 148.1MB in the beginning and 137.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 02:32:25,072 INFO L158 Benchmark]: CodeCheck took 5817.58ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 137.6MB in the beginning and 187.4MB in the end (delta: -49.8MB). Peak memory consumption was 90.0MB. Max. memory is 16.1GB. [2023-12-03 02:32:25,072 INFO L158 Benchmark]: Witness Printer took 84.65ms. Allocated memory is still 222.3MB. Free memory was 187.4MB in the beginning and 183.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 02:32:25,075 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.7s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 316 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 134 mSDsluCounter, 334 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 234 mSDsCounter, 312 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1130 IncrementalHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 312 mSolverCounterUnsat, 100 mSDtfsCounter, 1130 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2101 GetRequests, 1909 SyntacticMatches, 72 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5044 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 189 NumberOfCodeBlocks, 189 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 182 ConstructedInterpolants, 0 QuantifiedInterpolants, 428 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 204/294 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: 15]: 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 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 121.6MB. Free memory was 90.2MB in the beginning and 90.1MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 203.89ms. Allocated memory is still 184.5MB. Free memory was 147.7MB in the beginning and 150.2MB in the end (delta: -2.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.09ms. Allocated memory is still 184.5MB. Free memory was 150.2MB in the beginning and 148.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.85ms. Allocated memory is still 184.5MB. Free memory was 148.8MB in the beginning and 148.1MB in the end (delta: 707.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 218.37ms. Allocated memory is still 184.5MB. Free memory was 148.1MB in the beginning and 137.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 5817.58ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 137.6MB in the beginning and 187.4MB in the end (delta: -49.8MB). Peak memory consumption was 90.0MB. Max. memory is 16.1GB. * Witness Printer took 84.65ms. Allocated memory is still 222.3MB. Free memory was 187.4MB in the beginning and 183.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-03 02:32:25,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20010f6-adbc-401b-8fd5-109ff81fc70b/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