./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/divbin.i --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_202cad65-5429-4fc4-b241-c271490c128c/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202cad65-5429-4fc4-b241-c271490c128c/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_202cad65-5429-4fc4-b241-c271490c128c/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202cad65-5429-4fc4-b241-c271490c128c/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench/divbin.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202cad65-5429-4fc4-b241-c271490c128c/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_202cad65-5429-4fc4-b241-c271490c128c/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 c49641164907d0e2939c5443b0376a8e4377b34a58fd804ad01c6cf7d42c55dc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 03:59:49,295 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 03:59:49,351 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202cad65-5429-4fc4-b241-c271490c128c/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 03:59:49,356 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 03:59:49,356 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 03:59:49,376 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 03:59:49,377 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 03:59:49,377 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 03:59:49,377 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 03:59:49,377 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 03:59:49,377 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 03:59:49,378 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 03:59:49,378 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 03:59:49,378 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 03:59:49,378 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 03:59:49,378 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 03:59:49,378 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 03:59:49,378 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 03:59:49,378 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 03:59:49,378 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 03:59:49,378 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 03:59:49,379 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 03:59:49,379 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 03:59:49,379 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 03:59:49,379 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 03:59:49,379 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 03:59:49,379 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 03:59:49,379 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:59:49,379 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 03:59:49,379 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 03:59:49,379 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 03:59:49,380 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 03:59:49,380 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 03:59:49,380 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_202cad65-5429-4fc4-b241-c271490c128c/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 -> c49641164907d0e2939c5443b0376a8e4377b34a58fd804ad01c6cf7d42c55dc [2024-12-06 03:59:49,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 03:59:49,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 03:59:49,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 03:59:49,623 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 03:59:49,623 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 03:59:49,624 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202cad65-5429-4fc4-b241-c271490c128c/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/nla-digbench/divbin.i [2024-12-06 03:59:52,231 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202cad65-5429-4fc4-b241-c271490c128c/bin/ukojak-verify-CZk0znPC7b/data/0b062a5c9/bacb764d4e7540f7ae245a8cb08c7091/FLAG8762a225e [2024-12-06 03:59:52,422 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 03:59:52,423 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202cad65-5429-4fc4-b241-c271490c128c/sv-benchmarks/c/nla-digbench/divbin.i [2024-12-06 03:59:52,437 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202cad65-5429-4fc4-b241-c271490c128c/bin/ukojak-verify-CZk0znPC7b/data/0b062a5c9/bacb764d4e7540f7ae245a8cb08c7091/FLAG8762a225e [2024-12-06 03:59:52,811 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202cad65-5429-4fc4-b241-c271490c128c/bin/ukojak-verify-CZk0znPC7b/data/0b062a5c9/bacb764d4e7540f7ae245a8cb08c7091 [2024-12-06 03:59:52,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 03:59:52,815 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 03:59:52,816 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 03:59:52,816 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 03:59:52,819 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 03:59:52,819 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:59:52" (1/1) ... [2024-12-06 03:59:52,820 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eb871c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:59:52, skipping insertion in model container [2024-12-06 03:59:52,820 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:59:52" (1/1) ... [2024-12-06 03:59:52,830 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 03:59:52,932 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_202cad65-5429-4fc4-b241-c271490c128c/sv-benchmarks/c/nla-digbench/divbin.i[950,963] [2024-12-06 03:59:52,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:59:52,953 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 03:59:52,964 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_202cad65-5429-4fc4-b241-c271490c128c/sv-benchmarks/c/nla-digbench/divbin.i[950,963] [2024-12-06 03:59:52,968 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:59:52,979 INFO L204 MainTranslator]: Completed translation [2024-12-06 03:59:52,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:59:52 WrapperNode [2024-12-06 03:59:52,980 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 03:59:52,980 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 03:59:52,980 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 03:59:52,980 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 03:59:52,985 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:59:52" (1/1) ... [2024-12-06 03:59:52,989 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:59:52" (1/1) ... [2024-12-06 03:59:52,998 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2024-12-06 03:59:52,999 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 03:59:52,999 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 03:59:52,999 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 03:59:52,999 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 03:59:53,004 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:59:52" (1/1) ... [2024-12-06 03:59:53,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:59:52" (1/1) ... [2024-12-06 03:59:53,004 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:59:52" (1/1) ... [2024-12-06 03:59:53,005 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:59:52" (1/1) ... [2024-12-06 03:59:53,007 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:59:52" (1/1) ... [2024-12-06 03:59:53,007 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:59:52" (1/1) ... [2024-12-06 03:59:53,010 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:59:52" (1/1) ... [2024-12-06 03:59:53,011 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:59:52" (1/1) ... [2024-12-06 03:59:53,011 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:59:52" (1/1) ... [2024-12-06 03:59:53,012 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 03:59:53,013 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 03:59:53,013 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 03:59:53,013 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 03:59:53,014 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:59:52" (1/1) ... [2024-12-06 03:59:53,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:59:53,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202cad65-5429-4fc4-b241-c271490c128c/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 03:59:53,042 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202cad65-5429-4fc4-b241-c271490c128c/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 03:59:53,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202cad65-5429-4fc4-b241-c271490c128c/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 03:59:53,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 03:59:53,069 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-06 03:59:53,069 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-06 03:59:53,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 03:59:53,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 03:59:53,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 03:59:53,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-06 03:59:53,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-06 03:59:53,115 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 03:59:53,117 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 03:59:53,212 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-12-06 03:59:53,212 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 03:59:53,241 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 03:59:53,242 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-06 03:59:53,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:59:53 BoogieIcfgContainer [2024-12-06 03:59:53,242 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 03:59:53,242 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 03:59:53,242 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 03:59:53,249 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 03:59:53,250 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:59:53" (1/1) ... [2024-12-06 03:59:53,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 03:59:53,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:59:53,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 18 states and 23 transitions. [2024-12-06 03:59:53,293 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2024-12-06 03:59:53,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-06 03:59:53,297 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:59:53,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:59:53,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 03:59:53,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:59:53,415 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-06 03:59:53,419 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 03:59:53,513 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 03:59:53,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:59:53,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2024-12-06 03:59:53,603 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2024-12-06 03:59:53,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-06 03:59:53,604 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:59:53,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:59:53,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:59:53,905 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 03:59:54,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:59:54,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 21 states and 26 transitions. [2024-12-06 03:59:54,250 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2024-12-06 03:59:54,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-06 03:59:54,251 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:59:54,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:59:54,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:59:54,524 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 03:59:55,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:59:55,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 35 transitions. [2024-12-06 03:59:55,006 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2024-12-06 03:59:55,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-06 03:59:55,007 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:59:55,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:59:55,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 03:59:55,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:59:55,099 WARN L254 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-06 03:59:55,102 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 03:59:55,801 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 03:59:58,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:59:58,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 29 states and 48 transitions. [2024-12-06 03:59:58,339 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 48 transitions. [2024-12-06 03:59:58,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-12-06 03:59:58,340 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:59:58,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:59:58,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 03:59:58,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:59:58,482 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-06 03:59:58,483 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 03:59:59,346 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 04:00:13,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 04:00:21,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.00s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 04:00:32,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-06 04:00:32,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:00:32,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 32 states and 60 transitions. [2024-12-06 04:00:32,427 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 60 transitions. [2024-12-06 04:00:32,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-12-06 04:00:32,428 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:00:32,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:00:32,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 04:00:32,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:00:32,494 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-06 04:00:32,496 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 04:00:53,441 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 04:02:00,001 WARN L286 SmtUtils]: Spent 15.45s on a formula simplification. DAG size of input: 43 DAG size of output: 31 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 04:03:02,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:03:02,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 33 states and 63 transitions. [2024-12-06 04:03:02,138 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 63 transitions. [2024-12-06 04:03:02,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-12-06 04:03:02,138 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:03:02,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:03:02,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 04:03:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:03:02,247 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-06 04:03:02,249 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 04:03:22,882 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 04:03:22,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:03:22,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 33 states and 63 transitions. [2024-12-06 04:03:22,917 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 63 transitions. [2024-12-06 04:03:22,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-12-06 04:03:22,917 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:03:22,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:03:22,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 04:03:23,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:03:23,114 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-06 04:03:23,115 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 04:03:37,453 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 04:04:11,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 04:05:02,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:05:02,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 37 states and 77 transitions. [2024-12-06 04:05:02,009 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 77 transitions. [2024-12-06 04:05:02,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-12-06 04:05:02,010 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:05:02,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:05:02,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:05:03,265 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-06 04:05:10,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:05:10,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 39 states and 86 transitions. [2024-12-06 04:05:10,043 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 86 transitions. [2024-12-06 04:05:10,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-12-06 04:05:10,044 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:05:10,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:05:10,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 04:05:10,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:05:10,620 WARN L254 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-12-06 04:05:10,622 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 04:05:15,246 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-06 04:05:32,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 04:05:52,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:05:52,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 45 states and 104 transitions. [2024-12-06 04:05:52,035 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 104 transitions. [2024-12-06 04:05:52,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-12-06 04:05:52,036 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:05:52,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:05:52,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 04:05:53,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:05:53,004 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-12-06 04:05:53,006 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 04:05:58,342 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-06 04:06:54,869 WARN L286 SmtUtils]: Spent 11.69s on a formula simplification. DAG size of input: 58 DAG size of output: 33 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 04:08:05,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 04:08:29,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-06 04:08:31,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-06 04:08:32,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:32,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 50 states and 117 transitions. [2024-12-06 04:08:32,009 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 117 transitions. [2024-12-06 04:08:32,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-12-06 04:08:32,010 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:32,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:08:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 04:08:33,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:33,294 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-12-06 04:08:33,296 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 04:08:37,402 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-06 04:08:51,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.79s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 04:08:56,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.22s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 04:09:14,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:09:14,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 53 states and 124 transitions. [2024-12-06 04:09:14,653 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 124 transitions. [2024-12-06 04:09:14,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-12-06 04:09:14,655 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:09:14,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:09:14,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 04:09:16,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:09:16,728 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-12-06 04:09:16,729 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 04:09:27,004 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 04:10:27,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:10:27,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 58 states and 138 transitions. [2024-12-06 04:10:27,597 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 138 transitions. [2024-12-06 04:10:27,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-12-06 04:10:27,598 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:10:27,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:10:28,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 04:10:29,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:10:29,715 WARN L254 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-12-06 04:10:29,716 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 04:12:19,461 WARN L286 SmtUtils]: Spent 10.31s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-06 04:13:50,811 WARN L286 SmtUtils]: Spent 12.09s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 04:14:01,552 WARN L286 SmtUtils]: Spent 10.01s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-06 04:14:16,701 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.