./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/for_bounded_loop1.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_291ba3eb-9df4-476c-9841-0a309f718fa6/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291ba3eb-9df4-476c-9841-0a309f718fa6/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291ba3eb-9df4-476c-9841-0a309f718fa6/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291ba3eb-9df4-476c-9841-0a309f718fa6/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/for_bounded_loop1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291ba3eb-9df4-476c-9841-0a309f718fa6/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291ba3eb-9df4-476c-9841-0a309f718fa6/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d362508cc6d10100af1abe34073a764b50319c9e1ae9c7cc9c70a242e3f5c8c4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:08:04,360 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:08:04,473 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291ba3eb-9df4-476c-9841-0a309f718fa6/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 23:08:04,483 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:08:04,484 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:08:04,526 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:08:04,527 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:08:04,527 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:08:04,529 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:08:04,536 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:08:04,536 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:08:04,537 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:08:04,538 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:08:04,539 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:08:04,540 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:08:04,540 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:08:04,541 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:08:04,541 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:08:04,541 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:08:04,542 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:08:04,542 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:08:04,543 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:08:04,544 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:08:04,544 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:08:04,545 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:08:04,545 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:08:04,545 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:08:04,546 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:08:04,547 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:08:04,547 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:08:04,548 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:08:04,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:08:04,549 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:08:04,549 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_291ba3eb-9df4-476c-9841-0a309f718fa6/bin/ukojak-verify-afCqCEvfdi/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291ba3eb-9df4-476c-9841-0a309f718fa6/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d362508cc6d10100af1abe34073a764b50319c9e1ae9c7cc9c70a242e3f5c8c4 [2023-11-24 23:08:04,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:08:04,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:08:04,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:08:04,823 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:08:04,823 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:08:04,825 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291ba3eb-9df4-476c-9841-0a309f718fa6/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/loops/for_bounded_loop1.c [2023-11-24 23:08:07,974 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:08:08,161 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:08:08,162 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291ba3eb-9df4-476c-9841-0a309f718fa6/sv-benchmarks/c/loops/for_bounded_loop1.c [2023-11-24 23:08:08,170 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291ba3eb-9df4-476c-9841-0a309f718fa6/bin/ukojak-verify-afCqCEvfdi/data/9e61eff33/4f645c5d3edf4484be74e29183068692/FLAGc5e492fab [2023-11-24 23:08:08,184 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291ba3eb-9df4-476c-9841-0a309f718fa6/bin/ukojak-verify-afCqCEvfdi/data/9e61eff33/4f645c5d3edf4484be74e29183068692 [2023-11-24 23:08:08,186 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:08:08,188 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:08:08,190 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:08:08,190 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:08:08,195 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:08:08,198 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:08:08" (1/1) ... [2023-11-24 23:08:08,201 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24730e3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:08, skipping insertion in model container [2023-11-24 23:08:08,201 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:08:08" (1/1) ... [2023-11-24 23:08:08,226 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:08:08,379 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_291ba3eb-9df4-476c-9841-0a309f718fa6/sv-benchmarks/c/loops/for_bounded_loop1.c[416,429] [2023-11-24 23:08:08,392 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:08:08,403 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:08:08,413 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_291ba3eb-9df4-476c-9841-0a309f718fa6/sv-benchmarks/c/loops/for_bounded_loop1.c[416,429] [2023-11-24 23:08:08,417 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:08:08,432 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:08:08,432 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:08 WrapperNode [2023-11-24 23:08:08,433 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:08:08,434 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:08:08,434 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:08:08,435 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:08:08,442 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:08" (1/1) ... [2023-11-24 23:08:08,448 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:08" (1/1) ... [2023-11-24 23:08:08,466 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 39 [2023-11-24 23:08:08,467 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:08:08,468 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:08:08,468 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:08:08,468 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:08:08,477 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:08" (1/1) ... [2023-11-24 23:08:08,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:08" (1/1) ... [2023-11-24 23:08:08,479 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:08" (1/1) ... [2023-11-24 23:08:08,479 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:08" (1/1) ... [2023-11-24 23:08:08,482 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:08" (1/1) ... [2023-11-24 23:08:08,485 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:08" (1/1) ... [2023-11-24 23:08:08,487 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:08" (1/1) ... [2023-11-24 23:08:08,488 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:08" (1/1) ... [2023-11-24 23:08:08,489 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:08:08,490 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:08:08,490 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:08:08,491 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:08:08,492 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:08" (1/1) ... [2023-11-24 23:08:08,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:08:08,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291ba3eb-9df4-476c-9841-0a309f718fa6/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:08:08,526 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291ba3eb-9df4-476c-9841-0a309f718fa6/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:08:08,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291ba3eb-9df4-476c-9841-0a309f718fa6/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:08:08,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:08:08,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:08:08,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:08:08,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:08:08,567 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 23:08:08,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 23:08:08,632 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:08:08,635 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:08:08,768 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:08:08,794 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:08:08,794 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:08:08,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:08:08 BoogieIcfgContainer [2023-11-24 23:08:08,796 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:08:08,797 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:08:08,797 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:08:08,808 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:08:08,808 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:08:08" (1/1) ... [2023-11-24 23:08:08,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:08:08,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:08,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2023-11-24 23:08:08,866 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2023-11-24 23:08:08,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:08:08,867 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:08,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:08,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:09,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:08:09,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:09,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 18 states and 23 transitions. [2023-11-24 23:08:09,138 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2023-11-24 23:08:09,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:08:09,138 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:09,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:09,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:09,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:08:09,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:09,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 31 transitions. [2023-11-24 23:08:09,809 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2023-11-24 23:08:09,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-24 23:08:09,817 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:09,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:09,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:10,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:08:10,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:10,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 22 states and 30 transitions. [2023-11-24 23:08:10,190 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2023-11-24 23:08:10,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-24 23:08:10,191 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:10,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:10,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:08:10,210 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:08:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:08:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:08:10,307 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:08:10,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:08:10,339 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2023-11-24 23:08:10,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 11:08:10 ImpRootNode [2023-11-24 23:08:10,370 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 23:08:10,371 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:08:10,371 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:08:10,371 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:08:10,372 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:08:08" (3/4) ... [2023-11-24 23:08:10,373 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-24 23:08:10,424 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291ba3eb-9df4-476c-9841-0a309f718fa6/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 23:08:10,424 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:08:10,425 INFO L158 Benchmark]: Toolchain (without parser) took 2237.08ms. Allocated memory was 157.3MB in the beginning and 203.4MB in the end (delta: 46.1MB). Free memory was 111.9MB in the beginning and 136.7MB in the end (delta: -24.8MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2023-11-24 23:08:10,426 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 107.0MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:08:10,426 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.45ms. Allocated memory is still 157.3MB. Free memory was 111.3MB in the beginning and 101.4MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-24 23:08:10,427 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.98ms. Allocated memory is still 157.3MB. Free memory was 101.4MB in the beginning and 99.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:08:10,428 INFO L158 Benchmark]: Boogie Preprocessor took 21.76ms. Allocated memory is still 157.3MB. Free memory was 99.5MB in the beginning and 98.7MB in the end (delta: 834.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:08:10,428 INFO L158 Benchmark]: RCFGBuilder took 306.20ms. Allocated memory is still 157.3MB. Free memory was 98.7MB in the beginning and 87.6MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 23:08:10,429 INFO L158 Benchmark]: CodeCheck took 1573.14ms. Allocated memory was 157.3MB in the beginning and 203.4MB in the end (delta: 46.1MB). Free memory was 87.6MB in the beginning and 138.8MB in the end (delta: -51.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:08:10,429 INFO L158 Benchmark]: Witness Printer took 53.47ms. Allocated memory is still 203.4MB. Free memory was 138.8MB in the beginning and 136.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:08:10,432 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, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 70 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 86 IncrementalHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 48 mSDtfsCounter, 86 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 222 GetRequests, 204 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 94 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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 - CounterExampleResult [Line: 11]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int i=0, x=0, y=0; [L20] int n=__VERIFIER_nondet_int(); [L21] COND FALSE !(!(n>0)) [L22] i=0 VAL [i=0, n=1, x=0, y=0] [L22] COND TRUE i