./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_freire2.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_378834ad-4c1d-46d9-af79-8ce98f498b44/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378834ad-4c1d-46d9-af79-8ce98f498b44/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_378834ad-4c1d-46d9-af79-8ce98f498b44/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378834ad-4c1d-46d9-af79-8ce98f498b44/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_freire2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378834ad-4c1d-46d9-af79-8ce98f498b44/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_378834ad-4c1d-46d9-af79-8ce98f498b44/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 fe305249fd372aa93f06f96f19c9f980fcfbf950606534816ffa9c7d79f22fc1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:17:16,395 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:17:16,476 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378834ad-4c1d-46d9-af79-8ce98f498b44/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 22:17:16,482 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:17:16,483 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:17:16,530 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:17:16,533 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:17:16,534 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:17:16,535 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:17:16,536 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:17:16,538 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:17:16,538 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:17:16,539 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:17:16,541 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:17:16,542 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:17:16,542 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:17:16,544 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:17:16,547 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:17:16,547 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:17:16,549 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:17:16,550 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:17:16,550 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:17:16,552 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:17:16,553 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:17:16,554 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:17:16,554 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:17:16,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:17:16,555 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:17:16,556 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:17:16,556 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:17:16,557 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:17:16,558 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:17:16,559 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:17:16,559 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_378834ad-4c1d-46d9-af79-8ce98f498b44/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378834ad-4c1d-46d9-af79-8ce98f498b44/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe305249fd372aa93f06f96f19c9f980fcfbf950606534816ffa9c7d79f22fc1 [2023-11-24 22:17:16,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:17:16,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:17:16,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:17:16,838 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:17:16,839 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:17:16,840 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378834ad-4c1d-46d9-af79-8ce98f498b44/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/recursified_nla-digbench/recursified_freire2.c [2023-11-24 22:17:20,057 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:17:20,246 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:17:20,247 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378834ad-4c1d-46d9-af79-8ce98f498b44/sv-benchmarks/c/recursified_nla-digbench/recursified_freire2.c [2023-11-24 22:17:20,255 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378834ad-4c1d-46d9-af79-8ce98f498b44/bin/ukojak-verify-afCqCEvfdi/data/0ed693727/4c6880998e8749b1bed5253b7fb991fb/FLAGeacbfb2ca [2023-11-24 22:17:20,270 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378834ad-4c1d-46d9-af79-8ce98f498b44/bin/ukojak-verify-afCqCEvfdi/data/0ed693727/4c6880998e8749b1bed5253b7fb991fb [2023-11-24 22:17:20,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:17:20,275 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:17:20,278 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:17:20,287 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:17:20,291 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:17:20,291 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:17:20" (1/1) ... [2023-11-24 22:17:20,292 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f21d9ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:20, skipping insertion in model container [2023-11-24 22:17:20,293 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:17:20" (1/1) ... [2023-11-24 22:17:20,318 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:17:20,476 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_378834ad-4c1d-46d9-af79-8ce98f498b44/sv-benchmarks/c/recursified_nla-digbench/recursified_freire2.c[1239,1252] [2023-11-24 22:17:20,506 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:17:20,517 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:17:20,527 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_378834ad-4c1d-46d9-af79-8ce98f498b44/sv-benchmarks/c/recursified_nla-digbench/recursified_freire2.c[1239,1252] [2023-11-24 22:17:20,544 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:17:20,560 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:17:20,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:20 WrapperNode [2023-11-24 22:17:20,561 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:17:20,562 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:17:20,562 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:17:20,563 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:17:20,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:20" (1/1) ... [2023-11-24 22:17:20,579 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:20" (1/1) ... [2023-11-24 22:17:20,609 INFO L138 Inliner]: procedures = 18, calls = 76, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 77 [2023-11-24 22:17:20,610 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:17:20,611 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:17:20,611 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:17:20,611 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:17:20,620 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:20" (1/1) ... [2023-11-24 22:17:20,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:20" (1/1) ... [2023-11-24 22:17:20,624 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:20" (1/1) ... [2023-11-24 22:17:20,624 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:20" (1/1) ... [2023-11-24 22:17:20,633 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:20" (1/1) ... [2023-11-24 22:17:20,635 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:20" (1/1) ... [2023-11-24 22:17:20,637 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:20" (1/1) ... [2023-11-24 22:17:20,639 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:20" (1/1) ... [2023-11-24 22:17:20,642 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:17:20,655 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:17:20,656 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:17:20,656 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:17:20,657 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:20" (1/1) ... [2023-11-24 22:17:20,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:17:20,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378834ad-4c1d-46d9-af79-8ce98f498b44/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:17:20,692 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378834ad-4c1d-46d9-af79-8ce98f498b44/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:17:20,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378834ad-4c1d-46d9-af79-8ce98f498b44/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:17:20,731 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_0_to_36_0 [2023-11-24 22:17:20,732 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_0_to_36_0 [2023-11-24 22:17:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:17:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:17:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:17:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 22:17:20,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-24 22:17:20,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-24 22:17:20,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:17:20,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:17:20,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 22:17:20,735 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 22:17:20,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 22:17:20,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:17:20,869 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:17:20,874 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:17:21,185 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:17:21,237 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:17:21,237 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 22:17:21,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:17:21 BoogieIcfgContainer [2023-11-24 22:17:21,240 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:17:21,241 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:17:21,241 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:17:21,251 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:17:21,251 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:17:21" (1/1) ... [2023-11-24 22:17:21,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:17:21,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:21,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 28 states and 36 transitions. [2023-11-24 22:17:21,318 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2023-11-24 22:17:21,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 22:17:21,322 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:21,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:17:21,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:17:21,589 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:17:21,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:17:21,638 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-24 22:17:21,663 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-24 22:17:21,664 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-24 22:17:21,665 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-24 22:17:21,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:17:21 ImpRootNode [2023-11-24 22:17:21,670 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:17:21,671 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:17:21,671 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:17:21,671 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:17:21,672 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:17:21" (3/4) ... [2023-11-24 22:17:21,675 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 22:17:21,676 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:17:21,677 INFO L158 Benchmark]: Toolchain (without parser) took 1402.43ms. Allocated memory is still 159.4MB. Free memory was 114.6MB in the beginning and 61.6MB in the end (delta: 53.0MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2023-11-24 22:17:21,678 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 121.6MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:17:21,679 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.83ms. Allocated memory is still 159.4MB. Free memory was 114.0MB in the beginning and 102.1MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 22:17:21,680 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.67ms. Allocated memory is still 159.4MB. Free memory was 102.1MB in the beginning and 100.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:17:21,681 INFO L158 Benchmark]: Boogie Preprocessor took 31.89ms. Allocated memory is still 159.4MB. Free memory was 100.3MB in the beginning and 98.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:17:21,681 INFO L158 Benchmark]: RCFGBuilder took 584.55ms. Allocated memory is still 159.4MB. Free memory was 98.8MB in the beginning and 82.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-24 22:17:21,682 INFO L158 Benchmark]: CodeCheck took 429.53ms. Allocated memory is still 159.4MB. Free memory was 82.0MB in the beginning and 61.6MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-24 22:17:21,683 INFO L158 Benchmark]: Witness Printer took 5.42ms. Allocated memory is still 159.4MB. Free memory is still 61.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:17:21,686 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 - UnprovableResult [Line: 43]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of to_int at line 58. Possible FailurePath: [L81] int r; [L82] double a; [L83] double x; [L84] double s; [L85] a = __VERIFIER_nondet_double() [L86] EXPR \read(a) [L86] x = a [L87] s = 3.25 [L88] r = 1 VAL [a={5:0}, r={4:0}, s={7:0}, x={6:0}] [L89] CALL func_to_recursive_line_0_to_36_0(&s, &a, &x, &r) VAL [a={5:0}, r={4:0}, s={7:0}, x={6:0}] [L58] EXPR \read(*s) [L58] EXPR \read(*r) [L58] EXPR \read(*r) VAL [a={5:0}, a={5:0}, r={4:0}, r={4:0}, s={7:0}, s={7:0}, x={6:0}, x={6:0}] [L58] CALL __VERIFIER_assert((((int) (4 * (*s))) - ((12 * (*r)) * (*r))) == 1) VAL [\old(cond)=0] [L39] COND TRUE !cond VAL [\old(cond)=0, cond=0] [L43] reach_error() VAL [\old(cond)=0, cond=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 121.6MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 283.83ms. Allocated memory is still 159.4MB. Free memory was 114.0MB in the beginning and 102.1MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.67ms. Allocated memory is still 159.4MB. Free memory was 102.1MB in the beginning and 100.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.89ms. Allocated memory is still 159.4MB. Free memory was 100.3MB in the beginning and 98.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 584.55ms. Allocated memory is still 159.4MB. Free memory was 98.8MB in the beginning and 82.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 429.53ms. Allocated memory is still 159.4MB. Free memory was 82.0MB in the beginning and 61.6MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 5.42ms. Allocated memory is still 159.4MB. Free memory is still 61.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 22:17:21,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378834ad-4c1d-46d9-af79-8ce98f498b44/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_378834ad-4c1d-46d9-af79-8ce98f498b44/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378834ad-4c1d-46d9-af79-8ce98f498b44/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_378834ad-4c1d-46d9-af79-8ce98f498b44/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378834ad-4c1d-46d9-af79-8ce98f498b44/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_freire2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378834ad-4c1d-46d9-af79-8ce98f498b44/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378834ad-4c1d-46d9-af79-8ce98f498b44/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 fe305249fd372aa93f06f96f19c9f980fcfbf950606534816ffa9c7d79f22fc1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:17:24,364 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:17:24,446 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378834ad-4c1d-46d9-af79-8ce98f498b44/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-24 22:17:24,482 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:17:24,483 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:17:24,484 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:17:24,485 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:17:24,486 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:17:24,487 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:17:24,492 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:17:24,492 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:17:24,493 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:17:24,493 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:17:24,495 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:17:24,495 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:17:24,496 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:17:24,496 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 22:17:24,497 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 22:17:24,497 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 22:17:24,497 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:17:24,498 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:17:24,498 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:17:24,499 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:17:24,499 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:17:24,500 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:17:24,500 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:17:24,500 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 22:17:24,501 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:17:24,501 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:17:24,502 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:17:24,503 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:17:24,503 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:17:24,504 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 22:17:24,504 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:17:24,504 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:17:24,504 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 22:17:24,505 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 22:17:24,505 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_378834ad-4c1d-46d9-af79-8ce98f498b44/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378834ad-4c1d-46d9-af79-8ce98f498b44/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe305249fd372aa93f06f96f19c9f980fcfbf950606534816ffa9c7d79f22fc1 [2023-11-24 22:17:24,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:17:24,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:17:24,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:17:24,906 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:17:24,907 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:17:24,909 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378834ad-4c1d-46d9-af79-8ce98f498b44/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/recursified_nla-digbench/recursified_freire2.c [2023-11-24 22:17:28,156 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:17:28,422 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:17:28,423 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378834ad-4c1d-46d9-af79-8ce98f498b44/sv-benchmarks/c/recursified_nla-digbench/recursified_freire2.c [2023-11-24 22:17:28,432 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378834ad-4c1d-46d9-af79-8ce98f498b44/bin/ukojak-verify-afCqCEvfdi/data/56617efea/d8fbb0a8312d470ab908387f0205ac73/FLAG04f676ad7 [2023-11-24 22:17:28,450 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378834ad-4c1d-46d9-af79-8ce98f498b44/bin/ukojak-verify-afCqCEvfdi/data/56617efea/d8fbb0a8312d470ab908387f0205ac73 [2023-11-24 22:17:28,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:17:28,455 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:17:28,456 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:17:28,456 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:17:28,461 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:17:28,462 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:17:28" (1/1) ... [2023-11-24 22:17:28,463 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f22d662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:28, skipping insertion in model container [2023-11-24 22:17:28,464 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:17:28" (1/1) ... [2023-11-24 22:17:28,495 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:17:28,696 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_378834ad-4c1d-46d9-af79-8ce98f498b44/sv-benchmarks/c/recursified_nla-digbench/recursified_freire2.c[1239,1252] [2023-11-24 22:17:28,741 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:17:28,772 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:17:28,794 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_378834ad-4c1d-46d9-af79-8ce98f498b44/sv-benchmarks/c/recursified_nla-digbench/recursified_freire2.c[1239,1252] [2023-11-24 22:17:28,829 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:17:28,891 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:17:28,892 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:28 WrapperNode [2023-11-24 22:17:28,892 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:17:28,911 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:17:28,911 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:17:28,911 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:17:28,920 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:28" (1/1) ... [2023-11-24 22:17:28,959 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:28" (1/1) ... [2023-11-24 22:17:28,997 INFO L138 Inliner]: procedures = 21, calls = 76, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 78 [2023-11-24 22:17:28,998 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:17:28,999 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:17:28,999 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:17:28,999 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:17:29,010 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:28" (1/1) ... [2023-11-24 22:17:29,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:28" (1/1) ... [2023-11-24 22:17:29,028 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:28" (1/1) ... [2023-11-24 22:17:29,028 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:28" (1/1) ... [2023-11-24 22:17:29,047 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:28" (1/1) ... [2023-11-24 22:17:29,049 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:28" (1/1) ... [2023-11-24 22:17:29,062 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:28" (1/1) ... [2023-11-24 22:17:29,064 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:28" (1/1) ... [2023-11-24 22:17:29,069 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:17:29,069 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:17:29,070 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:17:29,070 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:17:29,080 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:28" (1/1) ... [2023-11-24 22:17:29,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:17:29,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378834ad-4c1d-46d9-af79-8ce98f498b44/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:17:29,117 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378834ad-4c1d-46d9-af79-8ce98f498b44/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:17:29,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378834ad-4c1d-46d9-af79-8ce98f498b44/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:17:29,190 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_0_to_36_0 [2023-11-24 22:17:29,190 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_0_to_36_0 [2023-11-24 22:17:29,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:17:29,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2023-11-24 22:17:29,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2023-11-24 22:17:29,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 22:17:29,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:17:29,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-24 22:17:29,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:17:29,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:17:29,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 22:17:29,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 22:17:29,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:17:29,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-24 22:17:29,339 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:17:29,341 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:17:39,923 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:17:39,985 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:17:39,985 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 22:17:39,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:17:39 BoogieIcfgContainer [2023-11-24 22:17:39,987 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:17:39,988 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:17:39,988 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:17:39,999 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:17:40,000 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:17:39" (1/1) ... [2023-11-24 22:17:40,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:17:40,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:40,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 28 states and 36 transitions. [2023-11-24 22:17:40,082 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2023-11-24 22:17:40,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 22:17:40,111 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:40,112 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:17:40,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378834ad-4c1d-46d9-af79-8ce98f498b44/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:17:40,117 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378834ad-4c1d-46d9-af79-8ce98f498b44/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:17:40,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378834ad-4c1d-46d9-af79-8ce98f498b44/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-24 22:17:40,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:40,584 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:17:41,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:41,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-24 22:17:41,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:17:41,263 WARN L561 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2023-11-24 22:17:41,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:17:41,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 155 treesize of output 110 [2023-11-24 22:17:41,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:17:41,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:17:41,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:17:41,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 84 [2023-11-24 22:17:41,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:17:41,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:17:41,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:17:41,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:17:41,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:17:41,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:17:41,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2023-11-24 22:17:41,608 INFO L349 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-11-24 22:17:41,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 49 [2023-11-24 22:17:41,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-24 22:17:41,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:17:41,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 17 [2023-11-24 22:17:41,707 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-24 22:17:41,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:17:41,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 90 [2023-11-24 22:17:41,748 WARN L561 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2023-11-24 22:17:41,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:17:41,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 73 [2023-11-24 22:17:41,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 19 [2023-11-24 22:17:41,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:17:41,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 34 [2023-11-24 22:17:41,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:17:41,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:17:41,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-24 22:17:41,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:17:41,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 17 [2023-11-24 22:17:41,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-24 22:17:42,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:17:42,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 81 [2023-11-24 22:17:42,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:17:42,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 32 [2023-11-24 22:17:42,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:17:42,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 45 [2023-11-24 22:17:42,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:17:42,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:17:42,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-24 22:17:42,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-24 22:17:42,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:17:42,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 99 [2023-11-24 22:17:42,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:17:42,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:17:42,485 INFO L349 Elim1Store]: treesize reduction 18, result has 47.1 percent of original size [2023-11-24 22:17:42,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 40 [2023-11-24 22:17:42,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:17:42,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 27 [2023-11-24 22:17:42,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:17:42,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:17:42,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-24 22:17:42,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-24 22:17:42,639 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 22:17:42,640 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 22:17:42,646 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-24 22:18:06,186 WARN L293 SmtUtils]: Spent 23.50s on a formula simplification. DAG size of input: 46 DAG size of output: 34 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-24 22:18:06,603 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-24 22:18:06,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 31 [2023-11-24 22:18:06,899 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 22:18:06,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378834ad-4c1d-46d9-af79-8ce98f498b44/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-24 22:18:13,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.81s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 22:18:24,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.61s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []