./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43df346-a7b4-4edd-b8bb-45665f19dd51/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43df346-a7b4-4edd-b8bb-45665f19dd51/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43df346-a7b4-4edd-b8bb-45665f19dd51/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43df346-a7b4-4edd-b8bb-45665f19dd51/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43df346-a7b4-4edd-b8bb-45665f19dd51/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43df346-a7b4-4edd-b8bb-45665f19dd51/bin/ukojak-verify-CZk0znPC7b --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 a8eb1c4cff73de825c0246f8cf2782e4a89e8227445b840b0a85ffef021d29c3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 02:27:47,718 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 02:27:47,785 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43df346-a7b4-4edd-b8bb-45665f19dd51/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 02:27:47,790 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 02:27:47,790 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 02:27:47,814 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 02:27:47,815 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 02:27:47,815 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 02:27:47,816 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 02:27:47,816 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 02:27:47,816 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 02:27:47,816 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 02:27:47,817 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 02:27:47,817 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 02:27:47,817 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 02:27:47,817 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 02:27:47,817 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 02:27:47,817 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 02:27:47,817 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 02:27:47,817 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 02:27:47,817 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 02:27:47,817 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 02:27:47,818 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 02:27:47,818 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 02:27:47,818 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 02:27:47,818 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 02:27:47,818 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 02:27:47,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:27:47,818 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 02:27:47,819 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 02:27:47,819 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 02:27:47,819 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 02:27:47,819 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 02:27:47,819 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_f43df346-a7b4-4edd-b8bb-45665f19dd51/bin/ukojak-verify-CZk0znPC7b 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 -> a8eb1c4cff73de825c0246f8cf2782e4a89e8227445b840b0a85ffef021d29c3 [2024-12-06 02:27:48,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 02:27:48,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 02:27:48,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 02:27:48,086 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 02:27:48,087 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 02:27:48,088 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43df346-a7b4-4edd-b8bb-45665f19dd51/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound5.c [2024-12-06 02:27:51,069 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43df346-a7b4-4edd-b8bb-45665f19dd51/bin/ukojak-verify-CZk0znPC7b/data/3da0ff332/36682fe46fc34d688096427694acfedb/FLAG6b0fc5ce9 [2024-12-06 02:27:51,300 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 02:27:51,301 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43df346-a7b4-4edd-b8bb-45665f19dd51/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound5.c [2024-12-06 02:27:51,309 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43df346-a7b4-4edd-b8bb-45665f19dd51/bin/ukojak-verify-CZk0znPC7b/data/3da0ff332/36682fe46fc34d688096427694acfedb/FLAG6b0fc5ce9 [2024-12-06 02:27:51,325 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43df346-a7b4-4edd-b8bb-45665f19dd51/bin/ukojak-verify-CZk0znPC7b/data/3da0ff332/36682fe46fc34d688096427694acfedb [2024-12-06 02:27:51,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 02:27:51,330 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 02:27:51,332 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 02:27:51,332 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 02:27:51,338 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 02:27:51,339 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:27:51" (1/1) ... [2024-12-06 02:27:51,340 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d052d1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:51, skipping insertion in model container [2024-12-06 02:27:51,340 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:27:51" (1/1) ... [2024-12-06 02:27:51,354 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 02:27:51,492 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_f43df346-a7b4-4edd-b8bb-45665f19dd51/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound5.c[524,537] [2024-12-06 02:27:51,513 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:27:51,522 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 02:27:51,532 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_f43df346-a7b4-4edd-b8bb-45665f19dd51/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound5.c[524,537] [2024-12-06 02:27:51,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:27:51,554 INFO L204 MainTranslator]: Completed translation [2024-12-06 02:27:51,554 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:51 WrapperNode [2024-12-06 02:27:51,555 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 02:27:51,556 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 02:27:51,556 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 02:27:51,556 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 02:27:51,563 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:51" (1/1) ... [2024-12-06 02:27:51,568 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:51" (1/1) ... [2024-12-06 02:27:51,584 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 46 [2024-12-06 02:27:51,584 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 02:27:51,585 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 02:27:51,585 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 02:27:51,585 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 02:27:51,592 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:51" (1/1) ... [2024-12-06 02:27:51,592 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:51" (1/1) ... [2024-12-06 02:27:51,593 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:51" (1/1) ... [2024-12-06 02:27:51,593 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:51" (1/1) ... [2024-12-06 02:27:51,597 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:51" (1/1) ... [2024-12-06 02:27:51,598 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:51" (1/1) ... [2024-12-06 02:27:51,602 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:51" (1/1) ... [2024-12-06 02:27:51,603 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:51" (1/1) ... [2024-12-06 02:27:51,604 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:51" (1/1) ... [2024-12-06 02:27:51,606 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 02:27:51,607 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 02:27:51,607 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 02:27:51,608 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 02:27:51,608 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:51" (1/1) ... [2024-12-06 02:27:51,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:27:51,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43df346-a7b4-4edd-b8bb-45665f19dd51/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 02:27:51,640 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43df346-a7b4-4edd-b8bb-45665f19dd51/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 02:27:51,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f43df346-a7b4-4edd-b8bb-45665f19dd51/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 02:27:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 02:27:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-06 02:27:51,671 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-06 02:27:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 02:27:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 02:27:51,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 02:27:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-06 02:27:51,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-06 02:27:51,728 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 02:27:51,730 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 02:27:51,877 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-12-06 02:27:51,877 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 02:27:51,918 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 02:27:51,918 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 02:27:51,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:27:51 BoogieIcfgContainer [2024-12-06 02:27:51,919 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 02:27:51,920 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 02:27:51,920 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 02:27:51,930 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 02:27:51,930 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:27:51" (1/1) ... [2024-12-06 02:27:51,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 02:27:51,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:27:51,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2024-12-06 02:27:51,990 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2024-12-06 02:27:51,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-06 02:27:51,994 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:27:51,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:27:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:27:52,149 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 02:27:52,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:27:52,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2024-12-06 02:27:52,180 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2024-12-06 02:27:52,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-06 02:27:52,181 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:27:52,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:27:52,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 02:27:52,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:27:52,284 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-06 02:27:52,291 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 02:27:52,593 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 02:27:54,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 02:27:54,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:27:54,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2024-12-06 02:27:54,494 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2024-12-06 02:27:54,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-06 02:27:54,495 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:27:54,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:27:54,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:27:54,612 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 02:27:54,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:27:54,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 35 transitions. [2024-12-06 02:27:54,969 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2024-12-06 02:27:54,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-06 02:27:54,970 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:27:54,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:27:54,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:27:55,646 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 02:27:57,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 02:28:00,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:28:00,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 36 transitions. [2024-12-06 02:28:00,411 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2024-12-06 02:28:00,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-06 02:28:00,412 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:28:00,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:28:00,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 02:28:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:28:00,489 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-06 02:28:00,491 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 02:28:09,058 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 02:28:33,124 WARN L286 SmtUtils]: Spent 5.78s on a formula simplification. DAG size of input: 31 DAG size of output: 28 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 02:29:14,219 WARN L286 SmtUtils]: Spent 5.02s on a formula simplification. DAG size of input: 29 DAG size of output: 26 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 02:29:19,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 02:29:32,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 02:29:35,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 02:29:59,855 WARN L286 SmtUtils]: Spent 5.62s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 02:30:09,242 WARN L286 SmtUtils]: Spent 6.19s on a formula simplification. DAG size of input: 49 DAG size of output: 36 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 02:30:18,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 02:30:18,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:30:18,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 34 states and 53 transitions. [2024-12-06 02:30:18,440 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 53 transitions. [2024-12-06 02:30:18,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-06 02:30:18,441 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:30:18,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:30:18,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:30:18,659 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 02:30:49,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:30:49,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 38 states and 62 transitions. [2024-12-06 02:30:49,094 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2024-12-06 02:30:49,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-06 02:30:49,095 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:30:49,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:30:49,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:30:49,143 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 02:31:06,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:31:06,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 40 states and 67 transitions. [2024-12-06 02:31:06,839 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 67 transitions. [2024-12-06 02:31:06,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-06 02:31:06,840 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:31:06,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:31:06,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 02:31:06,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:31:06,958 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-06 02:31:06,960 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 02:31:40,874 WARN L286 SmtUtils]: Spent 5.27s on a formula simplification that was a NOOP. DAG size: 40 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 02:32:37,596 WARN L286 SmtUtils]: Spent 6.34s on a formula simplification that was a NOOP. DAG size: 60 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 02:32:45,428 WARN L286 SmtUtils]: Spent 5.39s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-06 02:32:46,391 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-06 02:33:18,590 WARN L286 SmtUtils]: Spent 7.81s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 02:34:18,861 WARN L286 SmtUtils]: Spent 11.99s on a formula simplification. DAG size of input: 60 DAG size of output: 39 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 02:34:38,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.61s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 02:37:06,644 WARN L286 SmtUtils]: Spent 25.67s on a formula simplification. DAG size of input: 77 DAG size of output: 26 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 02:38:05,436 WARN L286 SmtUtils]: Spent 12.72s on a formula simplification. DAG size of input: 78 DAG size of output: 46 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 02:38:18,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.49s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 02:38:19,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:38:19,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 44 states and 76 transitions. [2024-12-06 02:38:19,586 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 76 transitions. [2024-12-06 02:38:19,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-06 02:38:19,587 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:38:19,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:38:19,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:38:19,779 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-06 02:38:35,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:38:35,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 48 states and 84 transitions. [2024-12-06 02:38:35,387 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 84 transitions. [2024-12-06 02:38:35,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-06 02:38:35,387 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:38:35,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:38:35,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:38:35,458 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-06 02:39:11,637 WARN L286 SmtUtils]: Spent 7.24s 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) [2024-12-06 02:39:50,446 WARN L286 SmtUtils]: Spent 12.36s 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) [2024-12-06 02:39:52,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 02:39:54,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 02:39:54,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:39:54,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 52 states and 98 transitions. [2024-12-06 02:39:54,590 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2024-12-06 02:39:54,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-06 02:39:54,591 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:39:54,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:39:54,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:39:54,660 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-06 02:40:19,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:40:19,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 54 states and 103 transitions. [2024-12-06 02:40:19,249 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 103 transitions. [2024-12-06 02:40:19,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-06 02:40:19,250 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:40:19,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:40:19,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 02:40:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:40:19,328 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-06 02:40:19,329 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 02:40:55,996 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-06 02:41:09,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.44s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 02:41:50,454 WARN L286 SmtUtils]: Spent 12.48s on a formula simplification. DAG size of input: 67 DAG size of output: 49 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 02:42:02,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 02:42:52,930 WARN L286 SmtUtils]: Spent 24.32s on a formula simplification. DAG size of input: 78 DAG size of output: 31 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)