./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71f49904-e989-44e9-95f5-7c5cf3794fdc/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71f49904-e989-44e9-95f5-7c5cf3794fdc/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_71f49904-e989-44e9-95f5-7c5cf3794fdc/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71f49904-e989-44e9-95f5-7c5cf3794fdc/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench/fermat1-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71f49904-e989-44e9-95f5-7c5cf3794fdc/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_71f49904-e989-44e9-95f5-7c5cf3794fdc/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 c5787d4099664297951b30a30ca371dd536df07843738ed8698fe723430a974c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 21:55:11,451 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 21:55:11,507 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71f49904-e989-44e9-95f5-7c5cf3794fdc/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-05 21:55:11,511 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 21:55:11,511 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 21:55:11,529 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 21:55:11,530 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 21:55:11,530 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 21:55:11,531 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 21:55:11,531 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 21:55:11,531 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 21:55:11,531 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 21:55:11,531 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 21:55:11,531 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 21:55:11,531 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 21:55:11,531 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 21:55:11,531 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 21:55:11,531 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 21:55:11,531 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 21:55:11,532 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 21:55:11,532 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 21:55:11,532 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 21:55:11,532 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 21:55:11,532 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 21:55:11,532 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 21:55:11,532 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 21:55:11,532 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 21:55:11,532 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:55:11,532 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 21:55:11,532 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 21:55:11,533 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 21:55:11,533 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 21:55:11,533 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 21:55:11,533 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_71f49904-e989-44e9-95f5-7c5cf3794fdc/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 -> c5787d4099664297951b30a30ca371dd536df07843738ed8698fe723430a974c [2024-12-05 21:55:11,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 21:55:11,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 21:55:11,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 21:55:11,773 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 21:55:11,774 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 21:55:11,776 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71f49904-e989-44e9-95f5-7c5cf3794fdc/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/nla-digbench/fermat1-ll.c [2024-12-05 21:55:14,388 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71f49904-e989-44e9-95f5-7c5cf3794fdc/bin/ukojak-verify-CZk0znPC7b/data/da45e15a7/c1cee5a9ba044420b71775785b714c94/FLAGcdce7d1e1 [2024-12-05 21:55:14,597 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 21:55:14,597 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71f49904-e989-44e9-95f5-7c5cf3794fdc/sv-benchmarks/c/nla-digbench/fermat1-ll.c [2024-12-05 21:55:14,605 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71f49904-e989-44e9-95f5-7c5cf3794fdc/bin/ukojak-verify-CZk0znPC7b/data/da45e15a7/c1cee5a9ba044420b71775785b714c94/FLAGcdce7d1e1 [2024-12-05 21:55:14,966 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71f49904-e989-44e9-95f5-7c5cf3794fdc/bin/ukojak-verify-CZk0znPC7b/data/da45e15a7/c1cee5a9ba044420b71775785b714c94 [2024-12-05 21:55:14,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 21:55:14,969 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 21:55:14,970 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 21:55:14,970 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 21:55:14,973 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 21:55:14,974 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:55:14" (1/1) ... [2024-12-05 21:55:14,975 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f79298f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:55:14, skipping insertion in model container [2024-12-05 21:55:14,975 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:55:14" (1/1) ... [2024-12-05 21:55:14,985 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 21:55:15,087 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_71f49904-e989-44e9-95f5-7c5cf3794fdc/sv-benchmarks/c/nla-digbench/fermat1-ll.c[535,548] [2024-12-05 21:55:15,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:55:15,114 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 21:55:15,122 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_71f49904-e989-44e9-95f5-7c5cf3794fdc/sv-benchmarks/c/nla-digbench/fermat1-ll.c[535,548] [2024-12-05 21:55:15,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:55:15,143 INFO L204 MainTranslator]: Completed translation [2024-12-05 21:55:15,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:55:15 WrapperNode [2024-12-05 21:55:15,143 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 21:55:15,144 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 21:55:15,144 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 21:55:15,144 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 21:55:15,150 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:55:15" (1/1) ... [2024-12-05 21:55:15,154 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:55:15" (1/1) ... [2024-12-05 21:55:15,167 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2024-12-05 21:55:15,168 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 21:55:15,168 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 21:55:15,168 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 21:55:15,168 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 21:55:15,173 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:55:15" (1/1) ... [2024-12-05 21:55:15,173 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:55:15" (1/1) ... [2024-12-05 21:55:15,174 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:55:15" (1/1) ... [2024-12-05 21:55:15,174 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:55:15" (1/1) ... [2024-12-05 21:55:15,177 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:55:15" (1/1) ... [2024-12-05 21:55:15,178 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:55:15" (1/1) ... [2024-12-05 21:55:15,182 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:55:15" (1/1) ... [2024-12-05 21:55:15,183 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:55:15" (1/1) ... [2024-12-05 21:55:15,183 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:55:15" (1/1) ... [2024-12-05 21:55:15,185 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 21:55:15,185 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 21:55:15,186 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 21:55:15,186 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 21:55:15,187 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:55:15" (1/1) ... [2024-12-05 21:55:15,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:55:15,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71f49904-e989-44e9-95f5-7c5cf3794fdc/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 21:55:15,212 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71f49904-e989-44e9-95f5-7c5cf3794fdc/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 21:55:15,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71f49904-e989-44e9-95f5-7c5cf3794fdc/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 21:55:15,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 21:55:15,236 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-05 21:55:15,236 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-05 21:55:15,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 21:55:15,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 21:55:15,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 21:55:15,236 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-05 21:55:15,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-05 21:55:15,280 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 21:55:15,281 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 21:55:15,398 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-12-05 21:55:15,398 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 21:55:15,424 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 21:55:15,424 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-12-05 21:55:15,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:55:15 BoogieIcfgContainer [2024-12-05 21:55:15,425 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 21:55:15,425 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 21:55:15,426 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 21:55:15,433 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 21:55:15,433 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:55:15" (1/1) ... [2024-12-05 21:55:15,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 21:55:15,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:55:15,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 21 states and 31 transitions. [2024-12-05 21:55:15,485 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 31 transitions. [2024-12-05 21:55:15,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-05 21:55:15,489 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:55:15,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:55:15,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 21:55:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:55:15,624 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-05 21:55:15,629 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:55:15,808 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 21:55:17,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:55:17,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 24 states and 37 transitions. [2024-12-05 21:55:17,123 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 37 transitions. [2024-12-05 21:55:17,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-12-05 21:55:17,124 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:55:17,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:55:17,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:55:20,017 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 21:55:22,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:55:22,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 35 transitions. [2024-12-05 21:55:22,310 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2024-12-05 21:55:22,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-12-05 21:55:22,311 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:55:22,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:55:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:55:23,394 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 21:55:25,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:55:25,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 25 states and 35 transitions. [2024-12-05 21:55:25,567 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2024-12-05 21:55:25,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-12-05 21:55:25,568 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:55:25,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:55:25,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 21:55:25,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:55:25,608 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-05 21:55:25,610 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:55:30,219 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-05 21:55:44,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 21:55:50,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 21:55:55,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:55:55,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 29 states and 45 transitions. [2024-12-05 21:55:55,099 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 45 transitions. [2024-12-05 21:55:55,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-12-05 21:55:55,100 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:55:55,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:55:55,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:55:55,220 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-05 21:55:55,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:55:55,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 30 states and 47 transitions. [2024-12-05 21:55:55,478 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 47 transitions. [2024-12-05 21:55:55,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-05 21:55:55,480 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:55:55,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:55:55,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 21:55:55,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:55:55,537 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-12-05 21:55:55,540 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:56:14,097 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-05 21:56:37,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:56:37,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 32 states and 52 transitions. [2024-12-05 21:56:37,198 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 52 transitions. [2024-12-05 21:56:37,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-05 21:56:37,199 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:56:37,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:56:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 21:56:37,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:56:37,247 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-05 21:56:37,249 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:56:48,978 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-05 21:57:10,146 WARN L286 SmtUtils]: Spent 5.43s on a formula simplification. DAG size of input: 30 DAG size of output: 19 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 21:57:14,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 21:57:15,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:57:15,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 34 states and 56 transitions. [2024-12-05 21:57:15,834 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 56 transitions. [2024-12-05 21:57:15,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-12-05 21:57:15,835 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:57:15,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:57:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 21:57:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:57:15,874 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-05 21:57:15,876 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:57:29,886 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-12-05 21:58:08,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.81s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 21:58:18,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:58:18,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 36 states and 61 transitions. [2024-12-05 21:58:18,055 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 61 transitions. [2024-12-05 21:58:18,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-12-05 21:58:18,056 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:58:18,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:58:18,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:58:18,169 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-12-05 21:58:27,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:58:27,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 38 states and 66 transitions. [2024-12-05 21:58:27,006 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 66 transitions. [2024-12-05 21:58:27,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-12-05 21:58:27,007 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:58:27,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:58:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:58:27,062 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-05 21:58:46,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:58:46,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 38 states and 65 transitions. [2024-12-05 21:58:46,756 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 65 transitions. [2024-12-05 21:58:46,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-12-05 21:58:46,757 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:58:46,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:58:46,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 21:58:46,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:58:46,801 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-12-05 21:58:46,803 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:58:58,443 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 10 proven. 17 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-12-05 21:59:07,972 WARN L286 SmtUtils]: Spent 5.44s on a formula simplification. DAG size of input: 48 DAG size of output: 42 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 21:59:20,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 21:59:26,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:59:26,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 40 states and 71 transitions. [2024-12-05 21:59:26,884 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 71 transitions. [2024-12-05 21:59:26,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-12-05 21:59:26,885 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:59:26,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:59:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 21:59:26,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:59:26,925 INFO L256 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-05 21:59:26,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:59:44,834 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-05 22:00:20,640 WARN L286 SmtUtils]: Spent 20.05s on a formula simplification. DAG size of input: 39 DAG size of output: 38 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 22:01:04,548 WARN L286 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 22:01:33,851 WARN L286 SmtUtils]: Spent 10.50s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 22:02:17,871 WARN L286 SmtUtils]: Spent 10.03s 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) [2024-12-05 22:02:52,107 WARN L286 SmtUtils]: Spent 10.04s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 22:03:49,025 WARN L286 SmtUtils]: Spent 10.04s 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) [2024-12-05 22:04:05,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-05 22:04:06,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-05 22:05:02,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:05:02,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 50 states and 100 transitions. [2024-12-05 22:05:02,843 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 100 transitions. [2024-12-05 22:05:02,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-12-05 22:05:02,844 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:05:02,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:05:02,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:05:03,043 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-12-05 22:05:25,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:05:25,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 52 states and 105 transitions. [2024-12-05 22:05:25,243 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 105 transitions. [2024-12-05 22:05:25,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-12-05 22:05:25,244 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:05:25,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:05:25,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 22:05:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:05:25,287 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-12-05 22:05:25,288 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 22:06:11,508 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 11 proven. 41 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-12-05 22:07:51,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 22:07:53,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 22:07:54,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 22:08:06,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:08:06,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 54 states and 113 transitions. [2024-12-05 22:08:06,181 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 113 transitions. [2024-12-05 22:08:06,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-12-05 22:08:06,182 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:08:06,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:08:06,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 22:08:06,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:08:06,236 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-05 22:08:06,237 INFO L279 TraceCheckSpWp]: Computing forward predicates...