./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_ps6.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfb9d72-e054-40f6-a011-21f583de781f/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfb9d72-e054-40f6-a011-21f583de781f/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfb9d72-e054-40f6-a011-21f583de781f/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfb9d72-e054-40f6-a011-21f583de781f/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_ps6.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfb9d72-e054-40f6-a011-21f583de781f/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfb9d72-e054-40f6-a011-21f583de781f/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 635e58724a56c62caeff3bee7749decbe4fed7f75c2f747c3a69f15f74dc7ff3 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:03:22,172 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:03:22,271 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfb9d72-e054-40f6-a011-21f583de781f/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-24 23:03:22,280 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:03:22,281 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:03:22,324 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:03:22,325 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:03:22,326 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:03:22,327 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:03:22,333 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:03:22,334 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:03:22,335 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:03:22,335 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:03:22,337 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:03:22,337 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:03:22,338 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:03:22,338 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:03:22,338 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:03:22,339 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:03:22,339 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:03:22,340 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:03:22,340 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:03:22,341 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:03:22,341 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:03:22,342 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:03:22,342 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:03:22,343 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:03:22,343 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:03:22,344 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:03:22,344 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:03:22,345 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:03:22,346 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:03:22,346 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:03:22,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:03:22,346 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:03:22,346 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfb9d72-e054-40f6-a011-21f583de781f/bin/ukojak-verify-afCqCEvfdi/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfb9d72-e054-40f6-a011-21f583de781f/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 635e58724a56c62caeff3bee7749decbe4fed7f75c2f747c3a69f15f74dc7ff3 [2023-11-24 23:03:22,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:03:22,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:03:22,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:03:22,654 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:03:22,654 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:03:22,656 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfb9d72-e054-40f6-a011-21f583de781f/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/recursified_nla-digbench/recursified_ps6.c [2023-11-24 23:03:25,762 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:03:26,106 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:03:26,107 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfb9d72-e054-40f6-a011-21f583de781f/sv-benchmarks/c/recursified_nla-digbench/recursified_ps6.c [2023-11-24 23:03:26,119 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfb9d72-e054-40f6-a011-21f583de781f/bin/ukojak-verify-afCqCEvfdi/data/2bf6d4933/8fcbff97515e4c73b854b530eeba54d8/FLAGa9382a9f0 [2023-11-24 23:03:26,141 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfb9d72-e054-40f6-a011-21f583de781f/bin/ukojak-verify-afCqCEvfdi/data/2bf6d4933/8fcbff97515e4c73b854b530eeba54d8 [2023-11-24 23:03:26,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:03:26,150 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:03:26,155 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:03:26,155 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:03:26,162 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:03:26,166 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:03:26" (1/1) ... [2023-11-24 23:03:26,167 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@427ef748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:26, skipping insertion in model container [2023-11-24 23:03:26,167 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:03:26" (1/1) ... [2023-11-24 23:03:26,200 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:03:26,408 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:03:26,423 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:03:26,454 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:03:26,475 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:03:26,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:26 WrapperNode [2023-11-24 23:03:26,476 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:03:26,477 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:03:26,477 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:03:26,477 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:03:26,486 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:26" (1/1) ... [2023-11-24 23:03:26,497 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:26" (1/1) ... [2023-11-24 23:03:26,529 INFO L138 Inliner]: procedures = 16, calls = 88, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 143 [2023-11-24 23:03:26,529 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:03:26,530 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:03:26,530 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:03:26,531 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:03:26,540 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:26" (1/1) ... [2023-11-24 23:03:26,541 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:26" (1/1) ... [2023-11-24 23:03:26,545 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:26" (1/1) ... [2023-11-24 23:03:26,545 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:26" (1/1) ... [2023-11-24 23:03:26,554 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:26" (1/1) ... [2023-11-24 23:03:26,556 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:26" (1/1) ... [2023-11-24 23:03:26,560 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:26" (1/1) ... [2023-11-24 23:03:26,562 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:26" (1/1) ... [2023-11-24 23:03:26,566 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:03:26,567 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:03:26,568 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:03:26,568 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:03:26,569 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:26" (1/1) ... [2023-11-24 23:03:26,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:03:26,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfb9d72-e054-40f6-a011-21f583de781f/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:03:26,603 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfb9d72-e054-40f6-a011-21f583de781f/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:03:26,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfb9d72-e054-40f6-a011-21f583de781f/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:03:26,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:03:26,659 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_25_to_33_0 [2023-11-24 23:03:26,660 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_25_to_33_0 [2023-11-24 23:03:26,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:03:26,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:03:26,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:03:26,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:03:26,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:03:26,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:03:26,663 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 23:03:26,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 23:03:26,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:03:26,755 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:03:26,757 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:03:27,570 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:03:27,606 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:03:27,607 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:03:27,609 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:03:27 BoogieIcfgContainer [2023-11-24 23:03:27,609 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:03:27,610 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:03:27,610 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:03:27,620 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:03:27,621 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:03:27" (1/1) ... [2023-11-24 23:03:27,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:03:27,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:03:27,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 222 states and 226 transitions. [2023-11-24 23:03:27,698 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 226 transitions. [2023-11-24 23:03:27,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 23:03:27,700 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:03:27,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:03:27,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:03:28,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:03:28,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:03:28,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 225 states and 229 transitions. [2023-11-24 23:03:28,770 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 229 transitions. [2023-11-24 23:03:28,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:03:28,771 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:03:28,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:03:28,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:03:28,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:03:29,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:03:29,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 226 states and 230 transitions. [2023-11-24 23:03:29,094 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 230 transitions. [2023-11-24 23:03:29,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:03:29,094 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:03:29,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:03:29,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:03:29,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-24 23:03:29,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:03:29,279 INFO L349 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2023-11-24 23:03:29,281 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 40 [2023-11-24 23:03:29,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:03:29,407 INFO L349 Elim1Store]: treesize reduction 137, result has 27.5 percent of original size [2023-11-24 23:03:29,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 59 treesize of output 115 [2023-11-24 23:03:29,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2023-11-24 23:03:29,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-24 23:03:29,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-24 23:03:29,654 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:03:29,656 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2023-11-24 23:03:29,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-11-24 23:03:30,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:03:32,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:03:32,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 231 states and 241 transitions. [2023-11-24 23:03:32,325 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 241 transitions. [2023-11-24 23:03:32,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:03:32,327 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:03:32,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:03:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:03:32,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-24 23:03:32,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:03:51,415 WARN L293 SmtUtils]: Spent 18.96s on a formula simplification. DAG size of input: 331 DAG size of output: 166 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-11-24 23:03:51,416 INFO L349 Elim1Store]: treesize reduction 1434, result has 28.5 percent of original size [2023-11-24 23:03:51,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 15 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 18 new quantified variables, introduced 78 case distinctions, treesize of input 19398 treesize of output 9752 [2023-11-24 23:03:54,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 36 [2023-11-24 23:04:00,297 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:04:00,301 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 786 [2023-11-24 23:04:05,057 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:04:05,061 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 789 [2023-11-24 23:04:07,917 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:04:07,919 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 765 [2023-11-24 23:04:10,997 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:04:10,999 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 466 [2023-11-24 23:04:11,527 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:04:11,528 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 466 [2023-11-24 23:04:12,033 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:04:12,036 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 490 [2023-11-24 23:04:18,856 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:04:18,859 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 888 [2023-11-24 23:04:23,109 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:04:23,112 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 727 [2023-11-24 23:04:27,159 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:04:27,161 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 631