./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_divbin2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17a4f905-f68b-4aeb-aebc-98854a07fc22/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17a4f905-f68b-4aeb-aebc-98854a07fc22/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_17a4f905-f68b-4aeb-aebc-98854a07fc22/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17a4f905-f68b-4aeb-aebc-98854a07fc22/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_divbin2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17a4f905-f68b-4aeb-aebc-98854a07fc22/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17a4f905-f68b-4aeb-aebc-98854a07fc22/bin/ukojak-verify-afCqCEvfdi --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 07d2bb25a1c8c4ef92611e8b25e211f661495bf054d1380ec62ffea892b45c2f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:08:05,332 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:08:05,451 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17a4f905-f68b-4aeb-aebc-98854a07fc22/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 23:08:05,460 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:08:05,461 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:08:05,504 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:08:05,505 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:08:05,506 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:08:05,507 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:08:05,507 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:08:05,508 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:08:05,508 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:08:05,509 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:08:05,509 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:08:05,510 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:08:05,511 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:08:05,511 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:08:05,512 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:08:05,512 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:08:05,512 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:08:05,513 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:08:05,514 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:08:05,514 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:08:05,515 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:08:05,515 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:08:05,515 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:08:05,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:08:05,516 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:08:05,517 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:08:05,517 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:08:05,517 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:08:05,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:08:05,518 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:08:05,518 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_17a4f905-f68b-4aeb-aebc-98854a07fc22/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17a4f905-f68b-4aeb-aebc-98854a07fc22/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07d2bb25a1c8c4ef92611e8b25e211f661495bf054d1380ec62ffea892b45c2f [2023-11-24 23:08:05,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:08:05,821 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:08:05,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:08:05,825 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:08:05,826 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:08:05,827 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17a4f905-f68b-4aeb-aebc-98854a07fc22/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/recursified_nla-digbench/recursified_divbin2.i [2023-11-24 23:08:09,051 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:08:09,281 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:08:09,285 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17a4f905-f68b-4aeb-aebc-98854a07fc22/sv-benchmarks/c/recursified_nla-digbench/recursified_divbin2.i [2023-11-24 23:08:09,295 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17a4f905-f68b-4aeb-aebc-98854a07fc22/bin/ukojak-verify-afCqCEvfdi/data/1160d4aa8/674e448f283645e5b88db4b3bf6fbad8/FLAG2c48d9a4b [2023-11-24 23:08:09,317 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17a4f905-f68b-4aeb-aebc-98854a07fc22/bin/ukojak-verify-afCqCEvfdi/data/1160d4aa8/674e448f283645e5b88db4b3bf6fbad8 [2023-11-24 23:08:09,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:08:09,327 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:08:09,329 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:08:09,329 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:08:09,334 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:08:09,335 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:08:09" (1/1) ... [2023-11-24 23:08:09,340 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@492f9450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:09, skipping insertion in model container [2023-11-24 23:08:09,340 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:08:09" (1/1) ... [2023-11-24 23:08:09,376 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:08:09,579 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_17a4f905-f68b-4aeb-aebc-98854a07fc22/sv-benchmarks/c/recursified_nla-digbench/recursified_divbin2.i[1567,1580] [2023-11-24 23:08:09,597 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:08:09,608 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:08:09,621 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_17a4f905-f68b-4aeb-aebc-98854a07fc22/sv-benchmarks/c/recursified_nla-digbench/recursified_divbin2.i[1567,1580] [2023-11-24 23:08:09,632 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:08:09,650 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:08:09,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:09 WrapperNode [2023-11-24 23:08:09,651 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:08:09,652 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:08:09,652 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:08:09,652 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:08:09,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:09" (1/1) ... [2023-11-24 23:08:09,685 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:09" (1/1) ... [2023-11-24 23:08:09,707 INFO L138 Inliner]: procedures = 19, calls = 59, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57 [2023-11-24 23:08:09,708 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:08:09,708 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:08:09,709 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:08:09,709 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:08:09,716 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:09" (1/1) ... [2023-11-24 23:08:09,716 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:09" (1/1) ... [2023-11-24 23:08:09,719 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:09" (1/1) ... [2023-11-24 23:08:09,719 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:09" (1/1) ... [2023-11-24 23:08:09,726 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:09" (1/1) ... [2023-11-24 23:08:09,728 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:09" (1/1) ... [2023-11-24 23:08:09,730 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:09" (1/1) ... [2023-11-24 23:08:09,731 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:09" (1/1) ... [2023-11-24 23:08:09,734 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:08:09,735 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:08:09,735 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:08:09,735 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:08:09,736 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:09" (1/1) ... [2023-11-24 23:08:09,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:08:09,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17a4f905-f68b-4aeb-aebc-98854a07fc22/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:08:09,780 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17a4f905-f68b-4aeb-aebc-98854a07fc22/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:08:09,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17a4f905-f68b-4aeb-aebc-98854a07fc22/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:08:09,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:08:09,822 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_33_to_35_0 [2023-11-24 23:08:09,822 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_33_to_35_0 [2023-11-24 23:08:09,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:08:09,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:08:09,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:08:09,823 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_37_to_44_0 [2023-11-24 23:08:09,823 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_37_to_44_0 [2023-11-24 23:08:09,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:08:09,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:08:09,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:08:09,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 23:08:09,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 23:08:09,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:08:09,913 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:08:09,915 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:08:10,148 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:08:10,281 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:08:10,282 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-24 23:08:10,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:08:10 BoogieIcfgContainer [2023-11-24 23:08:10,284 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:08:10,285 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:08:10,285 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:08:10,296 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:08:10,297 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:08:10" (1/1) ... [2023-11-24 23:08:10,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:08:10,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:10,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 27 states and 34 transitions. [2023-11-24 23:08:10,356 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2023-11-24 23:08:10,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 23:08:10,361 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:10,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:10,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:08:10,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:08:10,775 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 23:08:10,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:10,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 27 states and 31 transitions. [2023-11-24 23:08:10,802 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2023-11-24 23:08:10,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-24 23:08:10,803 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:10,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:11,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:11,171 WARN L260 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 107 conjunts are in the unsatisfiable core [2023-11-24 23:08:11,179 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:08:11,284 WARN L561 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2023-11-24 23:08:11,321 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:08:11,323 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:08:11,324 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:08:11,338 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-24 23:08:11,349 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:08:11,350 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:08:11,351 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:08:11,360 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-24 23:08:11,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:11,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:11,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:11,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:11,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:11,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:11,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:11,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:11,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:11,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:11,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:11,416 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 323 treesize of output 33 [2023-11-24 23:08:11,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:11,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:11,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:11,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:11,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:11,466 INFO L349 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2023-11-24 23:08:11,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 45 treesize of output 37 [2023-11-24 23:08:11,537 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:08:11,538 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:08:11,539 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:08:11,547 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-24 23:08:12,521 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2023-11-24 23:08:12,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 36 [2023-11-24 23:08:12,632 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 23:08:13,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:13,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 35 states and 49 transitions. [2023-11-24 23:08:13,593 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2023-11-24 23:08:13,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-24 23:08:13,595 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:13,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:13,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:13,788 WARN L260 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 109 conjunts are in the unsatisfiable core [2023-11-24 23:08:13,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:08:13,818 WARN L561 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2023-11-24 23:08:13,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:13,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:13,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:13,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:13,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:13,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:13,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:13,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:13,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:13,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:13,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:13,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 323 treesize of output 33 [2023-11-24 23:08:13,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:13,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:13,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:13,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:13,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:13,902 INFO L349 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2023-11-24 23:08:13,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 45 treesize of output 37 [2023-11-24 23:08:13,942 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:08:13,943 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:08:13,944 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:08:13,949 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-24 23:08:13,966 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:08:13,967 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:08:13,968 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:08:13,974 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-24 23:08:13,981 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:08:13,982 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:08:13,983 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:08:13,988 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-24 23:08:14,348 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-11-24 23:08:14,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 53 [2023-11-24 23:08:14,997 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2023-11-24 23:08:14,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 36 [2023-11-24 23:08:15,081 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 23:08:17,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:17,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 41 states and 61 transitions. [2023-11-24 23:08:17,886 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 61 transitions. [2023-11-24 23:08:17,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-24 23:08:17,888 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:17,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:18,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:18,158 WARN L260 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 133 conjunts are in the unsatisfiable core [2023-11-24 23:08:18,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:08:18,209 WARN L561 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2023-11-24 23:08:18,221 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:08:18,222 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:08:18,223 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:08:18,228 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-24 23:08:18,391 INFO L349 Elim1Store]: treesize reduction 198, result has 28.5 percent of original size [2023-11-24 23:08:18,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 357 treesize of output 232 [2023-11-24 23:08:18,510 INFO L349 Elim1Store]: treesize reduction 66, result has 38.3 percent of original size [2023-11-24 23:08:18,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 71 treesize of output 80 [2023-11-24 23:08:18,565 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 9 treesize of output 7 [2023-11-24 23:08:18,609 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 39 treesize of output 35 [2023-11-24 23:08:18,641 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 58 treesize of output 50 [2023-11-24 23:08:18,788 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:08:18,790 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 110 [2023-11-24 23:08:19,207 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-11-24 23:08:19,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 34 [2023-11-24 23:08:19,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:19,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:19,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:19,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:19,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:19,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:19,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:19,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:19,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:19,315 INFO L349 Elim1Store]: treesize reduction 60, result has 15.5 percent of original size [2023-11-24 23:08:19,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 672 treesize of output 139 [2023-11-24 23:08:19,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:19,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:19,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:19,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:19,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:19,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:19,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:19,373 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-24 23:08:19,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 26 [2023-11-24 23:08:19,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:19,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:08:19,464 INFO L349 Elim1Store]: treesize reduction 28, result has 31.7 percent of original size [2023-11-24 23:08:19,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 72 treesize of output 46 [2023-11-24 23:08:19,491 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 [2023-11-24 23:08:19,507 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:08:19,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 24 [2023-11-24 23:08:19,535 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 9 treesize of output 7 [2023-11-24 23:08:19,651 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:08:19,652 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:08:19,652 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:08:19,657 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-24 23:08:19,663 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:08:19,664 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:08:19,664 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:08:19,669 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-24 23:08:21,133 INFO L349 Elim1Store]: treesize reduction 222, result has 25.5 percent of original size [2023-11-24 23:08:21,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 155 treesize of output 182 [2023-11-24 23:08:25,769 INFO L349 Elim1Store]: treesize reduction 28, result has 82.2 percent of original size [2023-11-24 23:08:25,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 230 treesize of output 282 [2023-11-24 23:08:26,001 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-24 23:08:34,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:34,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 46 states and 72 transitions. [2023-11-24 23:08:34,332 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 72 transitions. [2023-11-24 23:08:34,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-24 23:08:34,334 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:34,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:34,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:34,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 43 conjunts are in the unsatisfiable core [2023-11-24 23:08:34,467 INFO L285 TraceCheckSpWp]: Computing forward predicates...