./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound100.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_a3f905f8-234d-4837-bb9b-7357dce39c0e/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f905f8-234d-4837-bb9b-7357dce39c0e/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_a3f905f8-234d-4837-bb9b-7357dce39c0e/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f905f8-234d-4837-bb9b-7357dce39c0e/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f905f8-234d-4837-bb9b-7357dce39c0e/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_a3f905f8-234d-4837-bb9b-7357dce39c0e/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 36da946a83103a61b88f0f1db9af94484aad5eefbde5313f974f53b267bd14bf --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 23:48:49,318 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 23:48:49,375 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f905f8-234d-4837-bb9b-7357dce39c0e/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-05 23:48:49,380 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 23:48:49,380 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 23:48:49,400 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 23:48:49,401 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 23:48:49,401 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 23:48:49,401 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 23:48:49,401 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 23:48:49,402 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 23:48:49,402 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 23:48:49,402 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 23:48:49,402 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 23:48:49,402 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 23:48:49,402 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 23:48:49,402 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 23:48:49,402 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 23:48:49,402 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 23:48:49,402 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 23:48:49,403 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 23:48:49,403 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 23:48:49,403 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 23:48:49,403 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 23:48:49,403 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 23:48:49,403 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 23:48:49,403 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 23:48:49,403 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:48:49,403 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 23:48:49,403 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 23:48:49,403 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 23:48:49,404 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 23:48:49,404 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 23:48:49,404 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_a3f905f8-234d-4837-bb9b-7357dce39c0e/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 -> 36da946a83103a61b88f0f1db9af94484aad5eefbde5313f974f53b267bd14bf [2024-12-05 23:48:49,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 23:48:49,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 23:48:49,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 23:48:49,660 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 23:48:49,660 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 23:48:49,661 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f905f8-234d-4837-bb9b-7357dce39c0e/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound100.c [2024-12-05 23:48:52,293 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f905f8-234d-4837-bb9b-7357dce39c0e/bin/ukojak-verify-CZk0znPC7b/data/b6686e75a/f27253a5171b49b0b15334924079f3df/FLAG0135ae13d [2024-12-05 23:48:52,493 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 23:48:52,493 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f905f8-234d-4837-bb9b-7357dce39c0e/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound100.c [2024-12-05 23:48:52,499 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f905f8-234d-4837-bb9b-7357dce39c0e/bin/ukojak-verify-CZk0znPC7b/data/b6686e75a/f27253a5171b49b0b15334924079f3df/FLAG0135ae13d [2024-12-05 23:48:52,872 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f905f8-234d-4837-bb9b-7357dce39c0e/bin/ukojak-verify-CZk0znPC7b/data/b6686e75a/f27253a5171b49b0b15334924079f3df [2024-12-05 23:48:52,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 23:48:52,880 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 23:48:52,882 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 23:48:52,882 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 23:48:52,888 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 23:48:52,889 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:48:52" (1/1) ... [2024-12-05 23:48:52,890 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36d90774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:48:52, skipping insertion in model container [2024-12-05 23:48:52,890 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:48:52" (1/1) ... [2024-12-05 23:48:52,903 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 23:48:53,003 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_a3f905f8-234d-4837-bb9b-7357dce39c0e/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound100.c[524,537] [2024-12-05 23:48:53,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:48:53,024 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 23:48:53,032 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_a3f905f8-234d-4837-bb9b-7357dce39c0e/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound100.c[524,537] [2024-12-05 23:48:53,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:48:53,049 INFO L204 MainTranslator]: Completed translation [2024-12-05 23:48:53,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:48:53 WrapperNode [2024-12-05 23:48:53,049 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 23:48:53,050 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 23:48:53,050 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 23:48:53,050 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 23:48:53,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:48:53" (1/1) ... [2024-12-05 23:48:53,060 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:48:53" (1/1) ... [2024-12-05 23:48:53,073 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 46 [2024-12-05 23:48:53,073 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 23:48:53,074 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 23:48:53,074 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 23:48:53,074 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 23:48:53,078 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:48:53" (1/1) ... [2024-12-05 23:48:53,078 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:48:53" (1/1) ... [2024-12-05 23:48:53,079 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:48:53" (1/1) ... [2024-12-05 23:48:53,079 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:48:53" (1/1) ... [2024-12-05 23:48:53,081 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:48:53" (1/1) ... [2024-12-05 23:48:53,082 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:48:53" (1/1) ... [2024-12-05 23:48:53,084 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:48:53" (1/1) ... [2024-12-05 23:48:53,084 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:48:53" (1/1) ... [2024-12-05 23:48:53,085 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:48:53" (1/1) ... [2024-12-05 23:48:53,086 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 23:48:53,087 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 23:48:53,087 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 23:48:53,087 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 23:48:53,088 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:48:53" (1/1) ... [2024-12-05 23:48:53,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:48:53,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f905f8-234d-4837-bb9b-7357dce39c0e/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 23:48:53,115 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f905f8-234d-4837-bb9b-7357dce39c0e/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 23:48:53,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3f905f8-234d-4837-bb9b-7357dce39c0e/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 23:48:53,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 23:48:53,140 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-05 23:48:53,140 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-05 23:48:53,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 23:48:53,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 23:48:53,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 23:48:53,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-05 23:48:53,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-05 23:48:53,186 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 23:48:53,188 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 23:48:53,279 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-12-05 23:48:53,280 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 23:48:53,304 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 23:48:53,304 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-05 23:48:53,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:48:53 BoogieIcfgContainer [2024-12-05 23:48:53,304 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 23:48:53,305 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 23:48:53,305 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 23:48:53,312 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 23:48:53,312 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:48:53" (1/1) ... [2024-12-05 23:48:53,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 23:48:53,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:48:53,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2024-12-05 23:48:53,363 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2024-12-05 23:48:53,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-05 23:48:53,366 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:48:53,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:48:53,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:48:53,484 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 23:48:53,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:48:53,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2024-12-05 23:48:53,506 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2024-12-05 23:48:53,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-05 23:48:53,507 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:48:53,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:48:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:48:53,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:48:53,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-05 23:48:53,585 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:48:53,769 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 23:48:54,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:48:54,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2024-12-05 23:48:54,309 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2024-12-05 23:48:54,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-05 23:48:54,310 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:48:54,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:48:54,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:48:54,424 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 23:48:54,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:48:54,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 35 transitions. [2024-12-05 23:48:54,736 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2024-12-05 23:48:54,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-05 23:48:54,737 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:48:54,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:48:54,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:48:56,037 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 23:48:59,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.35s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 23:49:02,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 23:49:02,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:49:02,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 36 transitions. [2024-12-05 23:49:02,344 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2024-12-05 23:49:02,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-05 23:49:02,345 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:49:02,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:49:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:49:02,500 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 23:49:18,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:49:18,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 31 states and 46 transitions. [2024-12-05 23:49:18,638 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 46 transitions. [2024-12-05 23:49:18,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-05 23:49:18,639 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:49:18,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:49:18,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:49:18,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:49:18,687 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-05 23:49:18,689 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:49:39,035 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 23:50:57,992 WARN L286 SmtUtils]: Spent 8.79s 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) [2024-12-05 23:51:23,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 23:51:43,203 WARN L286 SmtUtils]: Spent 11.39s on a formula simplification. DAG size of input: 48 DAG size of output: 25 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 23:51:58,430 WARN L286 SmtUtils]: Spent 6.21s on a formula simplification. DAG size of input: 49 DAG size of output: 36 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 23:52:03,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 23:52:03,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:52:03,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 38 states and 66 transitions. [2024-12-05 23:52:03,360 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 66 transitions. [2024-12-05 23:52:03,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-05 23:52:03,361 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:52:03,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:52:03,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:52:03,412 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 23:52:04,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:52:04,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 40 states and 68 transitions. [2024-12-05 23:52:04,432 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 68 transitions. [2024-12-05 23:52:04,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-05 23:52:04,432 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:52:04,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:52:04,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:52:04,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:52:04,505 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-05 23:52:04,507 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:52:45,106 WARN L286 SmtUtils]: Spent 14.67s on a formula simplification that was a NOOP. DAG size: 57 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 23:52:45,677 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 23:52:54,893 WARN L286 SmtUtils]: Spent 5.73s on a formula simplification. DAG size of input: 53 DAG size of output: 44 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 23:53:08,973 WARN L286 SmtUtils]: Spent 12.97s on a formula simplification. DAG size of input: 54 DAG size of output: 47 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 23:53:24,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 23:53:25,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 23:54:34,079 WARN L286 SmtUtils]: Spent 32.33s on a formula simplification. DAG size of input: 68 DAG size of output: 49 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 23:54:55,778 WARN L286 SmtUtils]: Spent 5.77s on a formula simplification. DAG size of input: 69 DAG size of output: 56 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 23:55:03,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 23:55:22,149 WARN L286 SmtUtils]: Spent 8.30s on a formula simplification that was a NOOP. DAG size: 57 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 23:55:31,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.08s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 23:55:32,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 23:55:32,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:55:32,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 44 states and 82 transitions. [2024-12-05 23:55:32,956 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 82 transitions. [2024-12-05 23:55:32,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-05 23:55:32,957 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:55:32,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:55:32,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:55:33,155 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-05 23:55:42,037 WARN L286 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 51 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 23:55:53,548 WARN L286 SmtUtils]: Spent 5.15s on a formula simplification that was a NOOP. DAG size: 51 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 23:56:10,139 WARN L286 SmtUtils]: Spent 13.76s on a formula simplification that was a NOOP. DAG size: 52 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 23:56:34,862 WARN L286 SmtUtils]: Spent 8.55s on a formula simplification that was a NOOP. DAG size: 51 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 23:56:46,240 WARN L286 SmtUtils]: Spent 11.23s on a formula simplification that was a NOOP. DAG size: 51 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 23:56:52,387 WARN L286 SmtUtils]: Spent 5.48s on a formula simplification that was a NOOP. DAG size: 52 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 23:57:09,872 WARN L286 SmtUtils]: Spent 10.09s on a formula simplification that was a NOOP. DAG size: 52 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 23:57:10,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:57:10,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 47 states and 89 transitions. [2024-12-05 23:57:10,751 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 89 transitions. [2024-12-05 23:57:10,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-05 23:57:10,752 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:57:10,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:57:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:57:10,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:57:10,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-05 23:57:10,833 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:58:12,605 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 23:59:57,905 WARN L286 SmtUtils]: Spent 18.02s on a formula simplification. DAG size of input: 60 DAG size of output: 44 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 00:00:15,157 WARN L286 SmtUtils]: Spent 6.00s on a formula simplification that was a NOOP. DAG size: 45 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 00:00:17,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 00:01:03,071 WARN L286 SmtUtils]: Spent 8.40s on a formula simplification that was a NOOP. DAG size: 55 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 00:01:14,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:01:14,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 48 states and 91 transitions. [2024-12-06 00:01:14,338 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 91 transitions. [2024-12-06 00:01:14,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-06 00:01:14,339 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:01:14,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:01:14,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:01:14,405 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 00:01:27,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:01:27,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 51 states and 99 transitions. [2024-12-06 00:01:27,189 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 99 transitions. [2024-12-06 00:01:27,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-06 00:01:27,190 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:01:27,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:01:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:01:27,252 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 00:01:57,503 WARN L286 SmtUtils]: Spent 8.43s on a formula simplification that was a NOOP. DAG size: 49 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 00:02:11,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:02:11,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 55 states and 112 transitions. [2024-12-06 00:02:11,560 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 112 transitions. [2024-12-06 00:02:11,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-06 00:02:11,561 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:02:11,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:02:11,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 00:02:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:02:11,626 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-06 00:02:11,628 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:03:15,449 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.