./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound50.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_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/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_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/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_ef86d20d-4591-4e71-a49a-bddcddae078e/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 4eead35b52b146e528d3235895e151889bbf52901c3f6d3c5a144d0412f9f4ac --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 04:42:23,677 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 04:42:23,743 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 04:42:23,747 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 04:42:23,748 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 04:42:23,783 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 04:42:23,784 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 04:42:23,785 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 04:42:23,785 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 04:42:23,786 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 04:42:23,787 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 04:42:23,787 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 04:42:23,788 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 04:42:23,788 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 04:42:23,789 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 04:42:23,789 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 04:42:23,790 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 04:42:23,790 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 04:42:23,791 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 04:42:23,791 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 04:42:23,792 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 04:42:23,792 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 04:42:23,793 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 04:42:23,794 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 04:42:23,794 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 04:42:23,794 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 04:42:23,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:42:23,795 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 04:42:23,802 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 04:42:23,803 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 04:42:23,803 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 04:42:23,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 04:42:23,804 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 04:42:23,804 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_ef86d20d-4591-4e71-a49a-bddcddae078e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4eead35b52b146e528d3235895e151889bbf52901c3f6d3c5a144d0412f9f4ac [2023-12-03 04:42:24,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 04:42:24,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 04:42:24,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 04:42:24,025 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 04:42:24,025 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 04:42:24,027 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound50.c [2023-12-03 04:42:26,811 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 04:42:26,998 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 04:42:26,999 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound50.c [2023-12-03 04:42:27,006 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/data/efa1018da/6750678d5cec4b28996a2ebf574b107e/FLAG62ee680d0 [2023-12-03 04:42:27,018 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/data/efa1018da/6750678d5cec4b28996a2ebf574b107e [2023-12-03 04:42:27,020 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 04:42:27,021 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 04:42:27,022 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 04:42:27,022 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 04:42:27,026 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 04:42:27,026 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:42:27" (1/1) ... [2023-12-03 04:42:27,028 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@147a36c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:42:27, skipping insertion in model container [2023-12-03 04:42:27,028 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:42:27" (1/1) ... [2023-12-03 04:42:27,046 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 04:42:27,168 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_ef86d20d-4591-4e71-a49a-bddcddae078e/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound50.c[709,722] [2023-12-03 04:42:27,189 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:42:27,199 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 04:42:27,209 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_ef86d20d-4591-4e71-a49a-bddcddae078e/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound50.c[709,722] [2023-12-03 04:42:27,219 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:42:27,233 INFO L206 MainTranslator]: Completed translation [2023-12-03 04:42:27,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:42:27 WrapperNode [2023-12-03 04:42:27,234 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 04:42:27,234 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 04:42:27,235 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 04:42:27,235 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 04:42:27,240 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:42:27" (1/1) ... [2023-12-03 04:42:27,246 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:42:27" (1/1) ... [2023-12-03 04:42:27,266 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2023-12-03 04:42:27,266 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 04:42:27,267 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 04:42:27,267 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 04:42:27,267 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 04:42:27,274 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:42:27" (1/1) ... [2023-12-03 04:42:27,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:42:27" (1/1) ... [2023-12-03 04:42:27,276 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:42:27" (1/1) ... [2023-12-03 04:42:27,276 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:42:27" (1/1) ... [2023-12-03 04:42:27,281 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:42:27" (1/1) ... [2023-12-03 04:42:27,284 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:42:27" (1/1) ... [2023-12-03 04:42:27,286 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:42:27" (1/1) ... [2023-12-03 04:42:27,287 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:42:27" (1/1) ... [2023-12-03 04:42:27,289 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 04:42:27,290 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 04:42:27,290 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 04:42:27,290 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 04:42:27,291 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:42:27" (1/1) ... [2023-12-03 04:42:27,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:42:27,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 04:42:27,317 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 04:42:27,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 04:42:27,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 04:42:27,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 04:42:27,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 04:42:27,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 04:42:27,355 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-03 04:42:27,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-03 04:42:27,414 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 04:42:27,416 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 04:42:27,533 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 04:42:27,554 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 04:42:27,554 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 04:42:27,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:42:27 BoogieIcfgContainer [2023-12-03 04:42:27,556 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 04:42:27,557 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 04:42:27,557 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 04:42:27,565 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 04:42:27,565 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:42:27" (1/1) ... [2023-12-03 04:42:27,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 04:42:27,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:42:27,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 18 states and 26 transitions. [2023-12-03 04:42:27,623 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2023-12-03 04:42:27,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-03 04:42:27,625 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:42:27,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:42:27,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:42:27,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:42:27,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 04:42:27,748 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:42:27,770 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 04:42:27,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:42:27,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2023-12-03 04:42:27,788 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2023-12-03 04:42:27,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 04:42:27,789 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:42:27,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:42:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:42:27,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:42:27,841 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 04:42:27,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:42:27,888 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 04:42:27,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:42:27,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2023-12-03 04:42:27,922 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2023-12-03 04:42:27,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 04:42:27,923 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:42:27,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:42:27,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:42:27,951 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 04:42:27,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:42:27,970 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2023-12-03 04:42:28,005 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post5 could not be translated [2023-12-03 04:42:28,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 04:42:28 ImpRootNode [2023-12-03 04:42:28,010 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 04:42:28,010 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 04:42:28,011 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 04:42:28,011 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 04:42:28,011 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:42:27" (3/4) ... [2023-12-03 04:42:28,013 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 04:42:28,014 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 04:42:28,015 INFO L158 Benchmark]: Toolchain (without parser) took 994.09ms. Allocated memory is still 151.0MB. Free memory was 121.5MB in the beginning and 120.1MB in the end (delta: 1.3MB). Peak memory consumption was 132.6kB. Max. memory is 16.1GB. [2023-12-03 04:42:28,017 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 113.2MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 04:42:28,017 INFO L158 Benchmark]: CACSL2BoogieTranslator took 211.67ms. Allocated memory is still 151.0MB. Free memory was 121.1MB in the beginning and 110.2MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 04:42:28,018 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.90ms. Allocated memory is still 151.0MB. Free memory was 110.2MB in the beginning and 108.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 04:42:28,019 INFO L158 Benchmark]: Boogie Preprocessor took 22.04ms. Allocated memory is still 151.0MB. Free memory was 108.5MB in the beginning and 107.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 04:42:28,020 INFO L158 Benchmark]: RCFGBuilder took 266.62ms. Allocated memory is still 151.0MB. Free memory was 107.2MB in the beginning and 96.7MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 04:42:28,021 INFO L158 Benchmark]: CodeCheck took 452.59ms. Allocated memory is still 151.0MB. Free memory was 96.7MB in the beginning and 120.1MB in the end (delta: -23.5MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. [2023-12-03 04:42:28,035 INFO L158 Benchmark]: Witness Printer took 4.09ms. Allocated memory is still 151.0MB. Free memory is still 120.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 04:42:28,043 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++<50 [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 113.2MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 211.67ms. Allocated memory is still 151.0MB. Free memory was 121.1MB in the beginning and 110.2MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.90ms. Allocated memory is still 151.0MB. Free memory was 110.2MB in the beginning and 108.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.04ms. Allocated memory is still 151.0MB. Free memory was 108.5MB in the beginning and 107.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 266.62ms. Allocated memory is still 151.0MB. Free memory was 107.2MB in the beginning and 96.7MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 452.59ms. Allocated memory is still 151.0MB. Free memory was 96.7MB in the beginning and 120.1MB in the end (delta: -23.5MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. * Witness Printer took 4.09ms. Allocated memory is still 151.0MB. Free memory is still 120.1MB. 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~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 04:42:28,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/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_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/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_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/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_ef86d20d-4591-4e71-a49a-bddcddae078e/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 4eead35b52b146e528d3235895e151889bbf52901c3f6d3c5a144d0412f9f4ac --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 04:42:30,004 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 04:42:30,084 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-12-03 04:42:30,116 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 04:42:30,117 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 04:42:30,118 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 04:42:30,118 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 04:42:30,119 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 04:42:30,120 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 04:42:30,120 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 04:42:30,121 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 04:42:30,121 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 04:42:30,122 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 04:42:30,122 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 04:42:30,123 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 04:42:30,123 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 04:42:30,124 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 04:42:30,124 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 04:42:30,125 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 04:42:30,125 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 04:42:30,126 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 04:42:30,126 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 04:42:30,127 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 04:42:30,127 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 04:42:30,127 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 04:42:30,128 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 04:42:30,128 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 04:42:30,129 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 04:42:30,129 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:42:30,129 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 04:42:30,130 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 04:42:30,130 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 04:42:30,130 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 04:42:30,131 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 04:42:30,131 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 04:42:30,131 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 04:42:30,131 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 04:42:30,132 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_ef86d20d-4591-4e71-a49a-bddcddae078e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4eead35b52b146e528d3235895e151889bbf52901c3f6d3c5a144d0412f9f4ac [2023-12-03 04:42:30,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 04:42:30,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 04:42:30,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 04:42:30,427 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 04:42:30,428 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 04:42:30,429 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound50.c [2023-12-03 04:42:33,241 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 04:42:33,432 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 04:42:33,432 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound50.c [2023-12-03 04:42:33,438 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/data/096738e8a/5078b82039504dd1b231ff314862ac83/FLAGf1a39e016 [2023-12-03 04:42:33,450 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/data/096738e8a/5078b82039504dd1b231ff314862ac83 [2023-12-03 04:42:33,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 04:42:33,453 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 04:42:33,455 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 04:42:33,455 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 04:42:33,459 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 04:42:33,459 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:42:33" (1/1) ... [2023-12-03 04:42:33,460 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bb773f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:42:33, skipping insertion in model container [2023-12-03 04:42:33,460 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:42:33" (1/1) ... [2023-12-03 04:42:33,483 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 04:42:33,640 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_ef86d20d-4591-4e71-a49a-bddcddae078e/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound50.c[709,722] [2023-12-03 04:42:33,663 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:42:33,678 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 04:42:33,691 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_ef86d20d-4591-4e71-a49a-bddcddae078e/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound50.c[709,722] [2023-12-03 04:42:33,702 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:42:33,719 INFO L206 MainTranslator]: Completed translation [2023-12-03 04:42:33,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:42:33 WrapperNode [2023-12-03 04:42:33,720 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 04:42:33,721 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 04:42:33,721 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 04:42:33,721 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 04:42:33,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:42:33" (1/1) ... [2023-12-03 04:42:33,740 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:42:33" (1/1) ... [2023-12-03 04:42:33,761 INFO L138 Inliner]: procedures = 15, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2023-12-03 04:42:33,762 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 04:42:33,763 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 04:42:33,763 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 04:42:33,763 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 04:42:33,772 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:42:33" (1/1) ... [2023-12-03 04:42:33,772 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:42:33" (1/1) ... [2023-12-03 04:42:33,776 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:42:33" (1/1) ... [2023-12-03 04:42:33,776 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:42:33" (1/1) ... [2023-12-03 04:42:33,784 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:42:33" (1/1) ... [2023-12-03 04:42:33,787 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:42:33" (1/1) ... [2023-12-03 04:42:33,789 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:42:33" (1/1) ... [2023-12-03 04:42:33,791 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:42:33" (1/1) ... [2023-12-03 04:42:33,794 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 04:42:33,795 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 04:42:33,795 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 04:42:33,795 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 04:42:33,796 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:42:33" (1/1) ... [2023-12-03 04:42:33,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:42:33,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 04:42:33,830 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 04:42:33,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 04:42:33,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 04:42:33,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 04:42:33,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 04:42:33,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 04:42:33,867 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-03 04:42:33,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-03 04:42:33,944 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 04:42:33,947 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 04:42:37,052 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 04:42:37,079 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 04:42:37,079 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 04:42:37,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:42:37 BoogieIcfgContainer [2023-12-03 04:42:37,080 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 04:42:37,081 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 04:42:37,081 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 04:42:37,096 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 04:42:37,099 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:42:37" (1/1) ... [2023-12-03 04:42:37,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 04:42:37,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:42:37,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 18 states and 26 transitions. [2023-12-03 04:42:37,182 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2023-12-03 04:42:37,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-03 04:42:37,183 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:42:37,184 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:42:37,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:42:37,201 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:42:37,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 04:42:37,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:42:37,299 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:42:37,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:42:37,367 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 04:42:37,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:42:37,386 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 04:42:37,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 04:42:37,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:42:37,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2023-12-03 04:42:37,412 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2023-12-03 04:42:37,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 04:42:37,413 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:42:37,413 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:42:37,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:42:37,414 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:42:37,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 04:42:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:42:37,556 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:42:37,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:42:37,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 04:42:37,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:42:37,679 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 04:42:37,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 04:42:37,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:42:37,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2023-12-03 04:42:37,769 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2023-12-03 04:42:37,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 04:42:37,770 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:42:37,770 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:42:37,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:42:37,771 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:42:37,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-03 04:42:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:42:37,894 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:42:38,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:42:38,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-03 04:42:38,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:42:38,346 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 04:42:38,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-03 04:42:38,350 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 04:42:40,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:42:42,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:42:45,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:42:56,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.50s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:43:06,170 WARN L539 Checker$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 04:43:10,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.62s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:43:21,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.36s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:43:31,203 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 04:43:32,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:43:32,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 25 states and 41 transitions. [2023-12-03 04:43:32,335 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 41 transitions. [2023-12-03 04:43:32,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-03 04:43:32,340 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:43:32,340 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:43:32,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:43:32,341 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:43:32,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef86d20d-4591-4e71-a49a-bddcddae078e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-03 04:43:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:43:32,752 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 04:43:33,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat