./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_hard2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_98368e80-4f4f-4e94-9e75-525185568c81/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98368e80-4f4f-4e94-9e75-525185568c81/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98368e80-4f4f-4e94-9e75-525185568c81/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98368e80-4f4f-4e94-9e75-525185568c81/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_hard2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98368e80-4f4f-4e94-9e75-525185568c81/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98368e80-4f4f-4e94-9e75-525185568c81/bin/ukojak-verify-G8NBE6pJGL --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 8571897e57404ad6e85df2c29745d5b56fa4d168673d3bc7c670c79b03a6c106 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:00:53,982 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:00:54,054 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98368e80-4f4f-4e94-9e75-525185568c81/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 04:00:54,058 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:00:54,059 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 04:00:54,082 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:00:54,083 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:00:54,084 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:00:54,085 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:00:54,086 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:00:54,086 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:00:54,087 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:00:54,088 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:00:54,088 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:00:54,089 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:00:54,090 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:00:54,090 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:00:54,091 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:00:54,092 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:00:54,092 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:00:54,093 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:00:54,094 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:00:54,094 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:00:54,095 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:00:54,096 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:00:54,096 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:00:54,097 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:00:54,098 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:00:54,098 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:00:54,098 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:00:54,099 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 04:00:54,100 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:00:54,100 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:00:54,101 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_98368e80-4f4f-4e94-9e75-525185568c81/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98368e80-4f4f-4e94-9e75-525185568c81/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8571897e57404ad6e85df2c29745d5b56fa4d168673d3bc7c670c79b03a6c106 [2023-11-19 04:00:54,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:00:54,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:00:54,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:00:54,435 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:00:54,435 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:00:54,436 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98368e80-4f4f-4e94-9e75-525185568c81/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/recursified_nla-digbench/recursified_hard2.c [2023-11-19 04:00:57,625 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:00:57,951 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:00:57,953 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98368e80-4f4f-4e94-9e75-525185568c81/sv-benchmarks/c/recursified_nla-digbench/recursified_hard2.c [2023-11-19 04:00:57,966 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98368e80-4f4f-4e94-9e75-525185568c81/bin/ukojak-verify-G8NBE6pJGL/data/3318bb2d4/dc25f7670b1d4f58b27debb1bebc5690/FLAG147f737ea [2023-11-19 04:00:57,985 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98368e80-4f4f-4e94-9e75-525185568c81/bin/ukojak-verify-G8NBE6pJGL/data/3318bb2d4/dc25f7670b1d4f58b27debb1bebc5690 [2023-11-19 04:00:57,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:00:57,996 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:00:58,001 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:00:58,001 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:00:58,006 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:00:58,007 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:00:57" (1/1) ... [2023-11-19 04:00:58,009 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@534b5863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:58, skipping insertion in model container [2023-11-19 04:00:58,009 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:00:57" (1/1) ... [2023-11-19 04:00:58,043 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:00:58,244 WARN L240 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_98368e80-4f4f-4e94-9e75-525185568c81/sv-benchmarks/c/recursified_nla-digbench/recursified_hard2.c[1067,1080] [2023-11-19 04:00:58,269 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:00:58,284 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:00:58,308 WARN L240 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_98368e80-4f4f-4e94-9e75-525185568c81/sv-benchmarks/c/recursified_nla-digbench/recursified_hard2.c[1067,1080] [2023-11-19 04:00:58,329 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:00:58,344 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:00:58,345 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:58 WrapperNode [2023-11-19 04:00:58,345 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:00:58,346 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:00:58,346 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:00:58,347 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:00:58,355 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:58" (1/1) ... [2023-11-19 04:00:58,366 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:58" (1/1) ... [2023-11-19 04:00:58,389 INFO L138 Inliner]: procedures = 17, calls = 90, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 78 [2023-11-19 04:00:58,389 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:00:58,390 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:00:58,390 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:00:58,390 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:00:58,399 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:58" (1/1) ... [2023-11-19 04:00:58,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:58" (1/1) ... [2023-11-19 04:00:58,406 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:58" (1/1) ... [2023-11-19 04:00:58,407 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:58" (1/1) ... [2023-11-19 04:00:58,415 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:58" (1/1) ... [2023-11-19 04:00:58,417 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:58" (1/1) ... [2023-11-19 04:00:58,420 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:58" (1/1) ... [2023-11-19 04:00:58,421 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:58" (1/1) ... [2023-11-19 04:00:58,424 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:00:58,425 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:00:58,426 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:00:58,426 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:00:58,426 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:58" (1/1) ... [2023-11-19 04:00:58,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:00:58,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98368e80-4f4f-4e94-9e75-525185568c81/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:00:58,473 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98368e80-4f4f-4e94-9e75-525185568c81/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:00:58,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98368e80-4f4f-4e94-9e75-525185568c81/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:00:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:00:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_40_to_50_0 [2023-11-19 04:00:58,519 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_40_to_50_0 [2023-11-19 04:00:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:00:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:00:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:00:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_30_to_37_0 [2023-11-19 04:00:58,519 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_30_to_37_0 [2023-11-19 04:00:58,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:00:58,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:00:58,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:00:58,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 04:00:58,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 04:00:58,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:00:58,628 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:00:58,630 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:00:59,002 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:00:59,073 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:00:59,074 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 04:00:59,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:00:59 BoogieIcfgContainer [2023-11-19 04:00:59,079 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:00:59,080 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:00:59,080 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:00:59,091 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:00:59,092 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:00:59" (1/1) ... [2023-11-19 04:00:59,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:00:59,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:59,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 37 states and 49 transitions. [2023-11-19 04:00:59,190 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 49 transitions. [2023-11-19 04:00:59,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 04:00:59,194 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:59,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:59,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:59,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:01:00,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:01:00,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 42 states and 58 transitions. [2023-11-19 04:01:00,029 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 58 transitions. [2023-11-19 04:01:00,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 04:01:00,031 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:01:00,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:01:00,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:01:01,502 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:01:02,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:01:02,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 47 states and 64 transitions. [2023-11-19 04:01:02,480 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 64 transitions. [2023-11-19 04:01:02,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 04:01:02,481 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:01:02,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:01:02,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:01:02,590 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 56 conjunts are in the unsatisfiable core [2023-11-19 04:01:02,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:01:02,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:02,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:02,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:02,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:02,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:02,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:02,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:02,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:02,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:02,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:02,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:02,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:02,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:09,187 WARN L293 SmtUtils]: Spent 6.33s on a formula simplification. DAG size of input: 180 DAG size of output: 61 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-11-19 04:01:09,188 INFO L349 Elim1Store]: treesize reduction 1218, result has 14.3 percent of original size [2023-11-19 04:01:09,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 10 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 13 new quantified variables, introduced 20 case distinctions, treesize of input 1326 treesize of output 2253 [2023-11-19 04:01:09,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:09,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:09,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:09,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:09,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:09,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:09,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:10,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:10,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:10,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:12,706 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:12,769 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:12,915 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:13,209 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:13,266 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:13,333 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:13,417 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:13,490 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:13,695 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:13,935 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:14,104 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:14,274 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:14,949 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:16,349 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:16,391 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:16,417 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:16,480 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:16,518 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:16,567 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:16,609 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:18,946 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:19,021 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:19,059 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:20,372 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:20,403 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:20,431 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:22,467 INFO L224 Elim1Store]: Index analysis took 12845 ms [2023-11-19 04:01:23,629 INFO L349 Elim1Store]: treesize reduction 741, result has 2.4 percent of original size [2023-11-19 04:01:23,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 10 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 19 case distinctions, treesize of input 855 treesize of output 1529 [2023-11-19 04:01:25,087 INFO L224 Elim1Store]: Index analysis took 207 ms [2023-11-19 04:01:25,107 INFO L349 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2023-11-19 04:01:25,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 413 treesize of output 397 [2023-11-19 04:01:25,345 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:01:25,350 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1149 [2023-11-19 04:01:25,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:25,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:27,389 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:27,524 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:27,733 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:27,902 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:27,971 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:28,026 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:28,103 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:28,174 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:28,231 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:28,302 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:28,671 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:28,710 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:28,759 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:29,677 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:29,960 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:30,009 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:30,065 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:30,103 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:30,126 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:30,180 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:30,650 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:30,678 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:30,714 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:31,485 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:31,512 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:31,566 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:01:34,457 INFO L224 Elim1Store]: Index analysis took 8897 ms [2023-11-19 04:01:35,754 INFO L349 Elim1Store]: treesize reduction 953, result has 1.9 percent of original size [2023-11-19 04:01:35,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 10 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 719 treesize of output 1556 [2023-11-19 04:01:36,192 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:01:36,195 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 617 [2023-11-19 04:01:36,404 WARN L561 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2023-11-19 04:01:37,125 WARN L561 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2023-11-19 04:01:37,185 WARN L561 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2023-11-19 04:01:37,336 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:01:37,344 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2071 [2023-11-19 04:01:37,442 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:01:37,451 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3259 [2023-11-19 04:01:37,585 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:01:37,596 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3970 [2023-11-19 04:01:37,611 INFO L209 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2023-11-19 04:01:37,691 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:01:37,703 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4317 [2023-11-19 04:01:37,813 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:01:37,817 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2272 [2023-11-19 04:01:37,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2272 treesize of output 1987 [2023-11-19 04:01:38,060 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:01:38,066 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2390 [2023-11-19 04:01:38,166 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:01:38,169 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1125 [2023-11-19 04:01:38,219 INFO L209 tifierPushTermWalker]: Run 20 iterations without descend maybe there is a nontermination bug. [2023-11-19 04:01:38,649 INFO L349 Elim1Store]: treesize reduction 28, result has 50.0 percent of original size [2023-11-19 04:01:38,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 129 treesize of output 285 [2023-11-19 04:01:38,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 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 167 treesize of output 248 [2023-11-19 04:01:39,668 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:01:39,673 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1748 [2023-11-19 04:01:55,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:55,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:55,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:55,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:55,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:55,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:55,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:55,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:55,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:55,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:55,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:55,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:55,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:55,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:55,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:55,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:55,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:55,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:55,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:55,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:01:55,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 414 treesize of output 435 [2023-11-19 04:01:55,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 234 treesize of output 222 [2023-11-19 04:01:55,957 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 222 treesize of output 216 [2023-11-19 04:01:55,971 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 242 treesize of output 235 [2023-11-19 04:01:56,047 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 5 treesize of output 3