./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_1410337d-d8b7-4d2f-8df7-1c80343f559a/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1410337d-d8b7-4d2f-8df7-1c80343f559a/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1410337d-d8b7-4d2f-8df7-1c80343f559a/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1410337d-d8b7-4d2f-8df7-1c80343f559a/bin/ukojak-verify-ENZ3QT5qd3/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_1410337d-d8b7-4d2f-8df7-1c80343f559a/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1410337d-d8b7-4d2f-8df7-1c80343f559a/bin/ukojak-verify-ENZ3QT5qd3 --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 [2024-11-25 02:28:07,620 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:28:07,721 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1410337d-d8b7-4d2f-8df7-1c80343f559a/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-25 02:28:07,730 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 02:28:07,734 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 02:28:07,760 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:28:07,761 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:28:07,762 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:28:07,762 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:28:07,762 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:28:07,763 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:28:07,763 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:28:07,763 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 02:28:07,763 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 02:28:07,764 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 02:28:07,764 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:28:07,764 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:28:07,764 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:28:07,764 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:28:07,765 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 02:28:07,765 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:28:07,765 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:28:07,765 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:28:07,765 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:28:07,766 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:28:07,766 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:28:07,766 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:28:07,766 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:28:07,766 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:28:07,767 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:28:07,767 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:28:07,767 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 02:28:07,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 02:28:07,767 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_1410337d-d8b7-4d2f-8df7-1c80343f559a/bin/ukojak-verify-ENZ3QT5qd3 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 [2024-11-25 02:28:08,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:28:08,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:28:08,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:28:08,176 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:28:08,176 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:28:08,178 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1410337d-d8b7-4d2f-8df7-1c80343f559a/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound100.c [2024-11-25 02:28:11,680 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1410337d-d8b7-4d2f-8df7-1c80343f559a/bin/ukojak-verify-ENZ3QT5qd3/data/37fc4a654/73e1e0881ffa4cc190b0f8f6e2ab0044/FLAG508674d2a [2024-11-25 02:28:12,038 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:28:12,042 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1410337d-d8b7-4d2f-8df7-1c80343f559a/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound100.c [2024-11-25 02:28:12,058 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1410337d-d8b7-4d2f-8df7-1c80343f559a/bin/ukojak-verify-ENZ3QT5qd3/data/37fc4a654/73e1e0881ffa4cc190b0f8f6e2ab0044/FLAG508674d2a [2024-11-25 02:28:12,077 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1410337d-d8b7-4d2f-8df7-1c80343f559a/bin/ukojak-verify-ENZ3QT5qd3/data/37fc4a654/73e1e0881ffa4cc190b0f8f6e2ab0044 [2024-11-25 02:28:12,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:28:12,083 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:28:12,084 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:28:12,085 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:28:12,090 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:28:12,092 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:28:12" (1/1) ... [2024-11-25 02:28:12,093 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17021b77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:28:12, skipping insertion in model container [2024-11-25 02:28:12,093 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:28:12" (1/1) ... [2024-11-25 02:28:12,114 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:28:12,342 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_1410337d-d8b7-4d2f-8df7-1c80343f559a/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound100.c[524,537] [2024-11-25 02:28:12,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:28:12,390 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:28:12,405 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_1410337d-d8b7-4d2f-8df7-1c80343f559a/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound100.c[524,537] [2024-11-25 02:28:12,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:28:12,442 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:28:12,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:28:12 WrapperNode [2024-11-25 02:28:12,444 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:28:12,445 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:28:12,446 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:28:12,446 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:28:12,459 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:28:12" (1/1) ... [2024-11-25 02:28:12,467 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:28:12" (1/1) ... [2024-11-25 02:28:12,494 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 46 [2024-11-25 02:28:12,495 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:28:12,496 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:28:12,496 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:28:12,496 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:28:12,505 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:28:12" (1/1) ... [2024-11-25 02:28:12,506 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:28:12" (1/1) ... [2024-11-25 02:28:12,508 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:28:12" (1/1) ... [2024-11-25 02:28:12,509 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:28:12" (1/1) ... [2024-11-25 02:28:12,516 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:28:12" (1/1) ... [2024-11-25 02:28:12,517 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:28:12" (1/1) ... [2024-11-25 02:28:12,524 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:28:12" (1/1) ... [2024-11-25 02:28:12,525 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:28:12" (1/1) ... [2024-11-25 02:28:12,526 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:28:12" (1/1) ... [2024-11-25 02:28:12,530 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:28:12,531 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:28:12,533 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:28:12,533 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:28:12,535 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:28:12" (1/1) ... [2024-11-25 02:28:12,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:28:12,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1410337d-d8b7-4d2f-8df7-1c80343f559a/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:28:12,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1410337d-d8b7-4d2f-8df7-1c80343f559a/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:28:12,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1410337d-d8b7-4d2f-8df7-1c80343f559a/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:28:12,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 02:28:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-25 02:28:12,622 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-25 02:28:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 02:28:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:28:12,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:28:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-25 02:28:12,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-25 02:28:12,699 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:28:12,702 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:28:12,893 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-25 02:28:12,893 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:28:12,935 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:28:12,935 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-25 02:28:12,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:28:12 BoogieIcfgContainer [2024-11-25 02:28:12,936 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:28:12,937 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:28:12,937 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:28:12,950 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:28:12,950 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:28:12" (1/1) ... [2024-11-25 02:28:12,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:28:13,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:28:13,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2024-11-25 02:28:13,026 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2024-11-25 02:28:13,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-25 02:28:13,031 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:28:13,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:28:13,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:28:13,281 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 02:28:13,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:28:13,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2024-11-25 02:28:13,332 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2024-11-25 02:28:13,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-25 02:28:13,332 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:28:13,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:28:13,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 02:28:13,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:28:13,499 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-25 02:28:13,510 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:28:13,858 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 02:28:14,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:28:14,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2024-11-25 02:28:14,735 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2024-11-25 02:28:14,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-25 02:28:14,737 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:28:14,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:28:14,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:28:14,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 02:28:15,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:28:15,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 35 transitions. [2024-11-25 02:28:15,478 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2024-11-25 02:28:15,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-25 02:28:15,480 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:28:15,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:28:15,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:28:17,803 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 02:28:23,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.98s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-25 02:28:26,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-25 02:28:26,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:28:26,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 36 transitions. [2024-11-25 02:28:26,866 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2024-11-25 02:28:26,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-25 02:28:26,866 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:28:26,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:28:26,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:28:27,082 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 02:28:54,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:28:54,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 31 states and 46 transitions. [2024-11-25 02:28:54,406 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 46 transitions. [2024-11-25 02:28:54,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-25 02:28:54,407 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:28:54,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:28:54,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 02:28:54,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:28:54,511 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-25 02:28:54,514 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:29:09,730 WARN L286 SmtUtils]: Spent 5.27s on a formula simplification. DAG size of input: 12 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-25 02:29:24,702 WARN L286 SmtUtils]: Spent 7.80s 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) [2024-11-25 02:29:27,477 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-25 02:29:49,206 WARN L286 SmtUtils]: Spent 6.05s 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) [2024-11-25 02:30:53,886 WARN L286 SmtUtils]: Spent 6.52s on a formula simplification. DAG size of input: 37 DAG size of output: 31 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-25 02:31:06,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-25 02:31:29,465 WARN L286 SmtUtils]: Spent 11.64s on a formula simplification. DAG size of input: 48 DAG size of output: 25 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-25 02:31:46,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:31:46,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 38 states and 66 transitions. [2024-11-25 02:31:46,978 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 66 transitions. [2024-11-25 02:31:46,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-25 02:31:46,980 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:31:46,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:31:47,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:31:47,120 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 02:31:50,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.85s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-25 02:31:52,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:31:52,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 40 states and 68 transitions. [2024-11-25 02:31:52,086 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 68 transitions. [2024-11-25 02:31:52,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-25 02:31:52,087 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:31:52,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:31:52,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 02:31:52,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:31:52,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-25 02:31:52,172 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:32:33,351 WARN L286 SmtUtils]: Spent 11.99s 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) [2024-11-25 02:33:27,251 WARN L286 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 61 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-25 02:33:40,119 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-25 02:36:38,954 WARN L286 SmtUtils]: Spent 16.71s on a formula simplification. DAG size of input: 81 DAG size of output: 27 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-25 02:37:19,329 WARN L286 SmtUtils]: Spent 5.94s on a formula simplification that was a NOOP. DAG size: 62 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-25 02:37:36,978 WARN L286 SmtUtils]: Spent 9.73s on a formula simplification. DAG size of input: 82 DAG size of output: 51 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-25 02:37:42,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-25 02:38:07,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-25 02:38:09,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:38:09,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 44 states and 79 transitions. [2024-11-25 02:38:09,557 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 79 transitions. [2024-11-25 02:38:09,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-25 02:38:09,558 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:38:09,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:38:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:38:09,911 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-25 02:38:27,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:38:27,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 47 states and 85 transitions. [2024-11-25 02:38:27,929 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 85 transitions. [2024-11-25 02:38:27,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-25 02:38:27,930 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:38:27,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:38:27,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:38:28,049 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-25 02:39:09,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:39:09,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 51 states and 99 transitions. [2024-11-25 02:39:09,005 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 99 transitions. [2024-11-25 02:39:09,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-25 02:39:09,006 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:39:09,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:39:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:39:09,089 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-25 02:39:11,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:39:11,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 53 states and 102 transitions. [2024-11-25 02:39:11,590 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 102 transitions. [2024-11-25 02:39:11,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-25 02:39:11,592 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:39:11,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:39:11,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 02:39:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:39:11,687 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-25 02:39:11,689 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:40:10,085 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-25 02:40:35,030 WARN L286 SmtUtils]: Spent 9.15s on a formula simplification. DAG size of input: 55 DAG size of output: 48 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-25 02:40:59,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.34s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-25 02:41:00,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-25 02:41:04,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.92s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []