./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/fermat1-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370f5068-208e-438f-bc0a-dcfbc258aa8f/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370f5068-208e-438f-bc0a-dcfbc258aa8f/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370f5068-208e-438f-bc0a-dcfbc258aa8f/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370f5068-208e-438f-bc0a-dcfbc258aa8f/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench/fermat1-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370f5068-208e-438f-bc0a-dcfbc258aa8f/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370f5068-208e-438f-bc0a-dcfbc258aa8f/bin/ukojak-verify-ImItNfHLgk --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 c5787d4099664297951b30a30ca371dd536df07843738ed8698fe723430a974c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:34:50,439 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:34:50,585 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370f5068-208e-438f-bc0a-dcfbc258aa8f/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-08 19:34:50,603 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:34:50,604 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 19:34:50,641 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:34:50,643 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:34:50,644 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 19:34:50,645 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:34:50,646 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:34:50,647 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:34:50,649 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:34:50,650 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:34:50,650 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:34:50,651 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:34:50,651 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:34:50,651 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:34:50,656 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:34:50,656 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:34:50,656 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:34:50,657 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:34:50,657 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:34:50,658 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:34:50,658 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 19:34:50,658 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 19:34:50,658 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 19:34:50,659 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:34:50,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:34:50,659 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:34:50,660 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:34:50,660 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:34:50,660 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 19:34:50,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:34:50,663 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_370f5068-208e-438f-bc0a-dcfbc258aa8f/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370f5068-208e-438f-bc0a-dcfbc258aa8f/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5787d4099664297951b30a30ca371dd536df07843738ed8698fe723430a974c [2024-11-08 19:34:51,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:34:51,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:34:51,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:34:51,088 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:34:51,089 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:34:51,091 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370f5068-208e-438f-bc0a-dcfbc258aa8f/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/nla-digbench/fermat1-ll.c Unable to find full path for "g++" [2024-11-08 19:34:53,376 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:34:53,643 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:34:53,643 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370f5068-208e-438f-bc0a-dcfbc258aa8f/sv-benchmarks/c/nla-digbench/fermat1-ll.c [2024-11-08 19:34:53,655 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370f5068-208e-438f-bc0a-dcfbc258aa8f/bin/ukojak-verify-ImItNfHLgk/data/c1bfea54a/26ecafde21db454b857e025a566e3524/FLAGabc0da5ed [2024-11-08 19:34:53,673 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370f5068-208e-438f-bc0a-dcfbc258aa8f/bin/ukojak-verify-ImItNfHLgk/data/c1bfea54a/26ecafde21db454b857e025a566e3524 [2024-11-08 19:34:53,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:34:53,678 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:34:53,680 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:34:53,680 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:34:53,685 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:34:53,685 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:34:53" (1/1) ... [2024-11-08 19:34:53,687 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f61248b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:34:53, skipping insertion in model container [2024-11-08 19:34:53,687 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:34:53" (1/1) ... [2024-11-08 19:34:53,721 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:34:53,936 WARN L250 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_370f5068-208e-438f-bc0a-dcfbc258aa8f/sv-benchmarks/c/nla-digbench/fermat1-ll.c[535,548] [2024-11-08 19:34:53,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:34:53,974 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:34:53,987 WARN L250 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_370f5068-208e-438f-bc0a-dcfbc258aa8f/sv-benchmarks/c/nla-digbench/fermat1-ll.c[535,548] [2024-11-08 19:34:53,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:34:54,020 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:34:54,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:34:54 WrapperNode [2024-11-08 19:34:54,021 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:34:54,022 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:34:54,022 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:34:54,023 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:34:54,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:34:54" (1/1) ... [2024-11-08 19:34:54,036 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:34:54" (1/1) ... [2024-11-08 19:34:54,058 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2024-11-08 19:34:54,059 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:34:54,059 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:34:54,060 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:34:54,060 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:34:54,070 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:34:54" (1/1) ... [2024-11-08 19:34:54,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:34:54" (1/1) ... [2024-11-08 19:34:54,071 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:34:54" (1/1) ... [2024-11-08 19:34:54,072 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:34:54" (1/1) ... [2024-11-08 19:34:54,075 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:34:54" (1/1) ... [2024-11-08 19:34:54,080 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:34:54" (1/1) ... [2024-11-08 19:34:54,081 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:34:54" (1/1) ... [2024-11-08 19:34:54,082 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:34:54" (1/1) ... [2024-11-08 19:34:54,084 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:34:54,085 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:34:54,085 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:34:54,085 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:34:54,086 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:34:54" (1/1) ... [2024-11-08 19:34:54,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:34:54,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370f5068-208e-438f-bc0a-dcfbc258aa8f/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 19:34:54,128 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370f5068-208e-438f-bc0a-dcfbc258aa8f/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 19:34:54,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370f5068-208e-438f-bc0a-dcfbc258aa8f/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 19:34:54,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:34:54,170 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 19:34:54,174 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 19:34:54,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 19:34:54,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:34:54,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:34:54,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-08 19:34:54,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-08 19:34:54,297 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:34:54,299 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:34:54,484 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-08 19:34:54,484 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:34:54,523 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:34:54,524 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-08 19:34:54,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:34:54 BoogieIcfgContainer [2024-11-08 19:34:54,525 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:34:54,526 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 19:34:54,526 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 19:34:54,541 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 19:34:54,542 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:34:54" (1/1) ... [2024-11-08 19:34:54,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:34:54,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:34:54,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2024-11-08 19:34:54,632 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2024-11-08 19:34:54,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-08 19:34:54,639 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:34:54,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:34:54,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:34:54,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 19:34:54,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:34:54,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 24 states and 31 transitions. [2024-11-08 19:34:54,909 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2024-11-08 19:34:54,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-08 19:34:54,914 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:34:54,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:34:54,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:34:55,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:34:55,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 19:34:55,046 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:34:55,470 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 19:34:58,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 19:34:58,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:34:58,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 28 states and 41 transitions. [2024-11-08 19:34:58,331 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2024-11-08 19:34:58,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-08 19:34:58,333 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:34:58,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:34:58,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:35:00,745 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 19:35:03,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:35:03,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 28 states and 39 transitions. [2024-11-08 19:35:03,762 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 39 transitions. [2024-11-08 19:35:03,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-08 19:35:03,763 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:35:03,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:35:03,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:35:04,388 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 19:35:10,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:35:10,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 30 states and 40 transitions. [2024-11-08 19:35:10,164 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2024-11-08 19:35:10,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-08 19:35:10,165 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:35:10,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:35:10,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:35:10,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:35:10,234 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-08 19:35:10,237 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:35:20,140 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 19:35:43,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:35:43,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 36 states and 52 transitions. [2024-11-08 19:35:43,034 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 52 transitions. [2024-11-08 19:35:43,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-08 19:35:43,035 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:35:43,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:35:43,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:35:43,224 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 19:35:47,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:35:47,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 38 states and 55 transitions. [2024-11-08 19:35:47,290 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 55 transitions. [2024-11-08 19:35:47,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-08 19:35:47,293 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:35:47,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:35:47,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:35:47,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:35:47,391 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 19:35:47,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:35:58,524 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 19:36:09,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 19:36:19,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:36:19,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 41 states and 61 transitions. [2024-11-08 19:36:19,135 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 61 transitions. [2024-11-08 19:36:19,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-08 19:36:19,136 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:36:19,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:36:19,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:36:19,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:36:19,196 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-08 19:36:19,198 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:36:25,299 WARN L286 SmtUtils]: Spent 5.50s on a formula simplification. DAG size of input: 10 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 19:36:30,334 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 19:37:09,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 19:37:10,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 19:37:12,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 19:37:14,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 19:37:23,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:37:23,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 44 states and 66 transitions. [2024-11-08 19:37:23,654 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 66 transitions. [2024-11-08 19:37:23,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-08 19:37:23,655 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:37:23,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:37:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:37:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:37:23,712 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-08 19:37:23,714 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:37:45,181 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 8 proven. 16 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-08 19:38:16,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 19:38:19,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 19:38:31,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:38:31,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 47 states and 72 transitions. [2024-11-08 19:38:31,676 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 72 transitions. [2024-11-08 19:38:31,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-08 19:38:31,678 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:38:31,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:38:31,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:38:31,860 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-08 19:38:40,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:38:40,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 50 states and 78 transitions. [2024-11-08 19:38:40,533 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 78 transitions. [2024-11-08 19:38:40,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-08 19:38:40,535 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:38:40,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:38:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:38:40,632 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-08 19:39:19,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:39:19,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 50 states and 77 transitions. [2024-11-08 19:39:19,675 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 77 transitions. [2024-11-08 19:39:19,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-08 19:39:19,677 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:39:19,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:39:19,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:39:19,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:39:19,777 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-08 19:39:19,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:39:37,547 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 10 proven. 27 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-08 19:41:01,723 WARN L286 SmtUtils]: Spent 1.18m on a formula simplification. DAG size of input: 48 DAG size of output: 41 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-08 19:41:48,014 WARN L286 SmtUtils]: Spent 38.53s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-08 19:42:00,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 19:42:01,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 19:42:10,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:42:10,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 53 states and 84 transitions. [2024-11-08 19:42:10,728 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 84 transitions. [2024-11-08 19:42:10,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-08 19:42:10,730 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:42:10,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:42:10,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:42:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:42:10,806 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-08 19:42:10,808 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:45:11,111 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 23 proven. 11 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-08 19:46:56,779 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~A~0#1|)) (.cse0 (let ((.cse4 (div (+ (* (- 1) |c_ULTIMATE.start_main_~u~0#1|) 1) 2))) (* .cse4 .cse4)))) (and (<= (+ 3 .cse0) (+ |c_ULTIMATE.start_main_~u~0#1| |c_ULTIMATE.start_main_~A~0#1|)) (not (and (exists ((|v_ULTIMATE.start_main_~R~0#1_20| Int)) (let ((.cse2 (* |v_ULTIMATE.start_main_~R~0#1_20| |v_ULTIMATE.start_main_~R~0#1_20|)) (.cse3 (* 2 |v_ULTIMATE.start_main_~R~0#1_20|))) (and (<= .cse1 .cse2) (<= (+ .cse3 1) |c_ULTIMATE.start_main_~u~0#1|) (<= (+ 2 .cse2) (+ .cse3 |c_ULTIMATE.start_main_~A~0#1|))))) (<= 1 |c_ULTIMATE.start_main_~v~0#1|))) (= .cse1 .cse0) (= (mod (+ |c_ULTIMATE.start_main_~u~0#1| 1) 2) 0) (= |c_ULTIMATE.start_main_~v~0#1| 1))) is different from false [2024-11-08 19:47:18,648 WARN L873 $PredicateComparison]: unable to prove that (not (let ((.cse1 (+ |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~A~0#1|)) (.cse0 (let ((.cse4 (div (+ (* (- 1) |c_ULTIMATE.start_main_~u~0#1|) 1) 2))) (* .cse4 .cse4)))) (and (<= (+ 3 .cse0) (+ |c_ULTIMATE.start_main_~u~0#1| |c_ULTIMATE.start_main_~A~0#1|)) (not (and (exists ((|v_ULTIMATE.start_main_~R~0#1_20| Int)) (let ((.cse2 (* |v_ULTIMATE.start_main_~R~0#1_20| |v_ULTIMATE.start_main_~R~0#1_20|)) (.cse3 (* 2 |v_ULTIMATE.start_main_~R~0#1_20|))) (and (<= .cse1 .cse2) (<= (+ .cse3 1) |c_ULTIMATE.start_main_~u~0#1|) (<= (+ 2 .cse2) (+ .cse3 |c_ULTIMATE.start_main_~A~0#1|))))) (<= 1 |c_ULTIMATE.start_main_~v~0#1|))) (= .cse1 .cse0) (= (mod (+ |c_ULTIMATE.start_main_~u~0#1| 1) 2) 0) (= |c_ULTIMATE.start_main_~v~0#1| 1)))) is different from true [2024-11-08 19:48:26,018 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (let ((.cse4 (div (+ (* (- 1) |c_ULTIMATE.start_main_~u~0#1|) 1) 2))) (* .cse4 .cse4))) (.cse1 (+ |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~A~0#1| 1))) (and (= 3 |c_ULTIMATE.start_main_~v~0#1|) (= .cse0 .cse1) (<= (+ 3 .cse0) (+ |c_ULTIMATE.start_main_~u~0#1| |c_ULTIMATE.start_main_~A~0#1|)) (not (exists ((|v_ULTIMATE.start_main_~R~0#1_20| Int)) (let ((.cse3 (* |v_ULTIMATE.start_main_~R~0#1_20| |v_ULTIMATE.start_main_~R~0#1_20|)) (.cse2 (* 2 |v_ULTIMATE.start_main_~R~0#1_20|))) (and (<= (+ .cse2 1) |c_ULTIMATE.start_main_~u~0#1|) (<= .cse1 .cse3) (<= (+ 2 .cse3) (+ .cse2 |c_ULTIMATE.start_main_~A~0#1|)))))) (<= 0 |c_ULTIMATE.start_main_~r~0#1|) (= (mod (+ |c_ULTIMATE.start_main_~u~0#1| 1) 2) 0))) is different from false [2024-11-08 19:48:43,099 WARN L873 $PredicateComparison]: unable to prove that (not (let ((.cse0 (let ((.cse4 (div (+ (* (- 1) |c_ULTIMATE.start_main_~u~0#1|) 1) 2))) (* .cse4 .cse4))) (.cse1 (+ |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~A~0#1| 1))) (and (= 3 |c_ULTIMATE.start_main_~v~0#1|) (= .cse0 .cse1) (<= (+ 3 .cse0) (+ |c_ULTIMATE.start_main_~u~0#1| |c_ULTIMATE.start_main_~A~0#1|)) (not (exists ((|v_ULTIMATE.start_main_~R~0#1_20| Int)) (let ((.cse3 (* |v_ULTIMATE.start_main_~R~0#1_20| |v_ULTIMATE.start_main_~R~0#1_20|)) (.cse2 (* 2 |v_ULTIMATE.start_main_~R~0#1_20|))) (and (<= (+ .cse2 1) |c_ULTIMATE.start_main_~u~0#1|) (<= .cse1 .cse3) (<= (+ 2 .cse3) (+ .cse2 |c_ULTIMATE.start_main_~A~0#1|)))))) (<= 0 |c_ULTIMATE.start_main_~r~0#1|) (= (mod (+ |c_ULTIMATE.start_main_~u~0#1| 1) 2) 0)))) is different from true [2024-11-08 19:49:15,159 WARN L286 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)