./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound10.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_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/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_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/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_25dac1d0-0a75-48bd-90e0-99d53b6635e0/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 7c94686873332081feb3318888667bc0ece98ccb66d8096416ad72e068ccd16c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 02:07:14,593 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 02:07:14,662 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 02:07:14,666 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 02:07:14,667 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 02:07:14,691 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 02:07:14,692 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 02:07:14,693 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 02:07:14,693 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 02:07:14,694 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 02:07:14,695 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 02:07:14,695 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 02:07:14,696 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 02:07:14,696 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 02:07:14,697 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 02:07:14,697 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 02:07:14,698 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 02:07:14,698 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 02:07:14,699 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 02:07:14,699 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 02:07:14,700 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 02:07:14,701 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 02:07:14,701 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 02:07:14,701 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 02:07:14,702 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 02:07:14,702 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 02:07:14,703 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:07:14,703 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 02:07:14,704 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 02:07:14,704 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 02:07:14,704 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 02:07:14,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 02:07:14,705 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 02:07:14,705 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_25dac1d0-0a75-48bd-90e0-99d53b6635e0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c94686873332081feb3318888667bc0ece98ccb66d8096416ad72e068ccd16c [2023-12-03 02:07:14,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 02:07:14,932 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 02:07:14,935 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 02:07:14,936 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 02:07:14,937 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 02:07:14,938 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound10.c [2023-12-03 02:07:17,657 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 02:07:17,844 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 02:07:17,844 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound10.c [2023-12-03 02:07:17,852 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/data/c28505950/1dc838f804b8414ea7a68a8d7db190de/FLAGa50a04611 [2023-12-03 02:07:17,867 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/data/c28505950/1dc838f804b8414ea7a68a8d7db190de [2023-12-03 02:07:17,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 02:07:17,871 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 02:07:17,872 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 02:07:17,873 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 02:07:17,877 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 02:07:17,878 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:07:17" (1/1) ... [2023-12-03 02:07:17,879 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e97af93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:07:17, skipping insertion in model container [2023-12-03 02:07:17,879 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:07:17" (1/1) ... [2023-12-03 02:07:17,901 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 02:07:18,038 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_25dac1d0-0a75-48bd-90e0-99d53b6635e0/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound10.c[709,722] [2023-12-03 02:07:18,058 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:07:18,069 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 02:07:18,081 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_25dac1d0-0a75-48bd-90e0-99d53b6635e0/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound10.c[709,722] [2023-12-03 02:07:18,090 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:07:18,105 INFO L206 MainTranslator]: Completed translation [2023-12-03 02:07:18,105 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:07:18 WrapperNode [2023-12-03 02:07:18,106 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 02:07:18,107 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 02:07:18,107 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 02:07:18,107 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 02:07:18,115 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:07:18" (1/1) ... [2023-12-03 02:07:18,122 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:07:18" (1/1) ... [2023-12-03 02:07:18,142 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2023-12-03 02:07:18,142 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 02:07:18,143 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 02:07:18,143 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 02:07:18,143 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 02:07:18,153 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:07:18" (1/1) ... [2023-12-03 02:07:18,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:07:18" (1/1) ... [2023-12-03 02:07:18,154 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:07:18" (1/1) ... [2023-12-03 02:07:18,154 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:07:18" (1/1) ... [2023-12-03 02:07:18,159 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:07:18" (1/1) ... [2023-12-03 02:07:18,163 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:07:18" (1/1) ... [2023-12-03 02:07:18,164 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:07:18" (1/1) ... [2023-12-03 02:07:18,165 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:07:18" (1/1) ... [2023-12-03 02:07:18,167 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 02:07:18,168 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 02:07:18,168 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 02:07:18,168 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 02:07:18,169 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:07:18" (1/1) ... [2023-12-03 02:07:18,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:07:18,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 02:07:18,194 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 02:07:18,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 02:07:18,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 02:07:18,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 02:07:18,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 02:07:18,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 02:07:18,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-03 02:07:18,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-03 02:07:18,299 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 02:07:18,302 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 02:07:18,428 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 02:07:18,461 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 02:07:18,462 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 02:07:18,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:07:18 BoogieIcfgContainer [2023-12-03 02:07:18,464 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 02:07:18,465 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 02:07:18,465 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 02:07:18,475 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 02:07:18,475 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:07:18" (1/1) ... [2023-12-03 02:07:18,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 02:07:18,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:07:18,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 18 states and 26 transitions. [2023-12-03 02:07:18,551 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2023-12-03 02:07:18,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-03 02:07:18,552 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:07:18,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:07:18,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:07:18,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:07:18,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 02:07:18,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:07:18,714 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 02:07:18,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:07:18,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2023-12-03 02:07:18,731 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2023-12-03 02:07:18,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 02:07:18,732 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:07:18,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:07:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:07:18,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:07:18,780 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 02:07:18,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:07:18,827 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 02:07:18,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:07:18,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2023-12-03 02:07:18,864 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2023-12-03 02:07:18,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 02:07:18,865 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:07:18,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:07:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 02:07:18,893 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 02:07:18,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 02:07:18,913 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2023-12-03 02:07:18,931 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post5 could not be translated [2023-12-03 02:07:18,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 02:07:18 ImpRootNode [2023-12-03 02:07:18,935 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 02:07:18,936 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 02:07:18,936 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 02:07:18,937 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 02:07:18,937 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:07:18" (3/4) ... [2023-12-03 02:07:18,939 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 02:07:18,940 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 02:07:18,941 INFO L158 Benchmark]: Toolchain (without parser) took 1069.53ms. Allocated memory was 125.8MB in the beginning and 155.2MB in the end (delta: 29.4MB). Free memory was 84.3MB in the beginning and 105.5MB in the end (delta: -21.3MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2023-12-03 02:07:18,941 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 125.8MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 02:07:18,942 INFO L158 Benchmark]: CACSL2BoogieTranslator took 233.65ms. Allocated memory is still 125.8MB. Free memory was 84.3MB in the beginning and 73.1MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-03 02:07:18,943 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.68ms. Allocated memory is still 125.8MB. Free memory was 73.1MB in the beginning and 71.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 02:07:18,943 INFO L158 Benchmark]: Boogie Preprocessor took 24.03ms. Allocated memory is still 125.8MB. Free memory was 71.6MB in the beginning and 70.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 02:07:18,944 INFO L158 Benchmark]: RCFGBuilder took 295.95ms. Allocated memory was 125.8MB in the beginning and 155.2MB in the end (delta: 29.4MB). Free memory was 70.3MB in the beginning and 124.7MB in the end (delta: -54.4MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2023-12-03 02:07:18,945 INFO L158 Benchmark]: CodeCheck took 470.92ms. Allocated memory is still 155.2MB. Free memory was 124.6MB in the beginning and 106.5MB in the end (delta: 18.1MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2023-12-03 02:07:18,945 INFO L158 Benchmark]: Witness Printer took 3.74ms. Allocated memory is still 155.2MB. Free memory was 106.5MB in the beginning and 105.5MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 02:07:18,949 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, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 44 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 30 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 4 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 82 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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: 19]: 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 34. Possible FailurePath: [L24] int counter = 0; [L26] int r; [L27] double a, x, s; [L28] a = __VERIFIER_nondet_double() [L29] x = a [L30] s = 3.25 [L31] r = 1 VAL [a=2, counter=0, r=1, s=13/4, x=2] [L33] EXPR counter++ VAL [a=2, counter=1, r=1, s=13/4, x=2] [L33] COND TRUE counter++<10 [L34] CALL __VERIFIER_assert((int)(4*s) - 12*r*r == 1) VAL [\old(cond)=0, counter=1] [L17] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=1] [L19] reach_error() VAL [\old(cond)=0, cond=0, counter=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 125.8MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 233.65ms. Allocated memory is still 125.8MB. Free memory was 84.3MB in the beginning and 73.1MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.68ms. Allocated memory is still 125.8MB. Free memory was 73.1MB in the beginning and 71.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.03ms. Allocated memory is still 125.8MB. Free memory was 71.6MB in the beginning and 70.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 295.95ms. Allocated memory was 125.8MB in the beginning and 155.2MB in the end (delta: 29.4MB). Free memory was 70.3MB in the beginning and 124.7MB in the end (delta: -54.4MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. * CodeCheck took 470.92ms. Allocated memory is still 155.2MB. Free memory was 124.6MB in the beginning and 106.5MB in the end (delta: 18.1MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * Witness Printer took 3.74ms. Allocated memory is still 155.2MB. Free memory was 106.5MB in the beginning and 105.5MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post5 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 [2023-12-03 02:07:18,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/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 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_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/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_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/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 7c94686873332081feb3318888667bc0ece98ccb66d8096416ad72e068ccd16c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 02:07:20,901 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 02:07:20,974 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-12-03 02:07:21,002 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 02:07:21,003 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 02:07:21,004 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 02:07:21,005 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 02:07:21,005 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 02:07:21,006 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 02:07:21,006 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 02:07:21,007 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 02:07:21,007 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 02:07:21,008 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 02:07:21,008 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 02:07:21,009 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 02:07:21,009 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 02:07:21,010 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 02:07:21,010 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 02:07:21,011 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 02:07:21,011 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 02:07:21,012 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 02:07:21,013 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 02:07:21,013 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 02:07:21,013 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 02:07:21,014 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 02:07:21,014 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 02:07:21,015 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 02:07:21,015 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 02:07:21,016 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:07:21,016 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 02:07:21,017 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 02:07:21,017 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 02:07:21,018 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 02:07:21,018 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 02:07:21,018 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 02:07:21,019 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 02:07:21,019 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 02:07:21,019 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_25dac1d0-0a75-48bd-90e0-99d53b6635e0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c94686873332081feb3318888667bc0ece98ccb66d8096416ad72e068ccd16c [2023-12-03 02:07:21,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 02:07:21,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 02:07:21,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 02:07:21,328 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 02:07:21,328 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 02:07:21,329 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound10.c [2023-12-03 02:07:24,129 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 02:07:24,326 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 02:07:24,327 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound10.c [2023-12-03 02:07:24,335 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/data/05c0a07e3/bee9458e459d4e38bd8e53c7eaf8bcfb/FLAGdd7df43f6 [2023-12-03 02:07:24,350 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/data/05c0a07e3/bee9458e459d4e38bd8e53c7eaf8bcfb [2023-12-03 02:07:24,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 02:07:24,354 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 02:07:24,355 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 02:07:24,356 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 02:07:24,361 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 02:07:24,361 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:07:24" (1/1) ... [2023-12-03 02:07:24,363 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c1bb3a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:07:24, skipping insertion in model container [2023-12-03 02:07:24,363 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:07:24" (1/1) ... [2023-12-03 02:07:24,384 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 02:07:24,541 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_25dac1d0-0a75-48bd-90e0-99d53b6635e0/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound10.c[709,722] [2023-12-03 02:07:24,565 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:07:24,581 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 02:07:24,594 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_25dac1d0-0a75-48bd-90e0-99d53b6635e0/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound10.c[709,722] [2023-12-03 02:07:24,606 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:07:24,622 INFO L206 MainTranslator]: Completed translation [2023-12-03 02:07:24,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:07:24 WrapperNode [2023-12-03 02:07:24,623 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 02:07:24,624 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 02:07:24,624 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 02:07:24,624 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 02:07:24,631 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:07:24" (1/1) ... [2023-12-03 02:07:24,641 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:07:24" (1/1) ... [2023-12-03 02:07:24,662 INFO L138 Inliner]: procedures = 15, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2023-12-03 02:07:24,662 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 02:07:24,663 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 02:07:24,663 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 02:07:24,663 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 02:07:24,672 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:07:24" (1/1) ... [2023-12-03 02:07:24,673 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:07:24" (1/1) ... [2023-12-03 02:07:24,676 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:07:24" (1/1) ... [2023-12-03 02:07:24,677 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:07:24" (1/1) ... [2023-12-03 02:07:24,684 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:07:24" (1/1) ... [2023-12-03 02:07:24,687 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:07:24" (1/1) ... [2023-12-03 02:07:24,689 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:07:24" (1/1) ... [2023-12-03 02:07:24,690 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:07:24" (1/1) ... [2023-12-03 02:07:24,694 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 02:07:24,694 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 02:07:24,695 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 02:07:24,695 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 02:07:24,696 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:07:24" (1/1) ... [2023-12-03 02:07:24,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:07:24,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 02:07:24,726 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 02:07:24,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 02:07:24,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 02:07:24,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 02:07:24,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 02:07:24,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 02:07:24,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-03 02:07:24,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-03 02:07:24,840 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 02:07:24,842 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 02:07:27,810 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 02:07:27,835 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 02:07:27,835 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 02:07:27,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:07:27 BoogieIcfgContainer [2023-12-03 02:07:27,837 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 02:07:27,838 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 02:07:27,838 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 02:07:27,846 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 02:07:27,846 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:07:27" (1/1) ... [2023-12-03 02:07:27,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 02:07:27,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:07:27,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 18 states and 26 transitions. [2023-12-03 02:07:27,901 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2023-12-03 02:07:27,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-03 02:07:27,902 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:07:27,902 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:07:27,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:07:27,904 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:07:27,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 02:07:28,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:07:28,055 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:07:28,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:07:28,122 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 02:07:28,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:07:28,141 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 02:07:28,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 02:07:28,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:07:28,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2023-12-03 02:07:28,166 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2023-12-03 02:07:28,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 02:07:28,166 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:07:28,166 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:07:28,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:07:28,167 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:07:28,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 02:07:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:07:28,310 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:07:28,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:07:28,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 02:07:28,373 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:07:28,428 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 02:07:28,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 02:07:28,432 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 02:07:28,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:07:28,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2023-12-03 02:07:28,489 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2023-12-03 02:07:28,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 02:07:28,489 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:07:28,489 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:07:28,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:07:28,490 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:07:28,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-03 02:07:28,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:07:28,609 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:07:28,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:07:28,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-03 02:07:28,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:07:29,070 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 02:07:29,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-03 02:07:30,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:07:33,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:07:37,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:07:48,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.48s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:07:58,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:08:03,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.44s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:08:14,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:08:24,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:08:25,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:08:25,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 25 states and 41 transitions. [2023-12-03 02:08:25,133 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 41 transitions. [2023-12-03 02:08:25,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-03 02:08:25,136 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:08:25,137 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:08:25,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:08:25,138 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:08:25,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25dac1d0-0a75-48bd-90e0-99d53b6635e0/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-03 02:08:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 02:08:25,557 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 02:08:25,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat