./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-89.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_c0125231-6b42-4fab-8615-1154cbbe0e22/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0125231-6b42-4fab-8615-1154cbbe0e22/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0125231-6b42-4fab-8615-1154cbbe0e22/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0125231-6b42-4fab-8615-1154cbbe0e22/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-89.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0125231-6b42-4fab-8615-1154cbbe0e22/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0125231-6b42-4fab-8615-1154cbbe0e22/bin/ukojak-verify-Qdu7aM0XO9 --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 f2d013ffa4d7cd59307ce87b23dd696caa1ad1374742fbf879c50e37b4a890a2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 04:09:37,781 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 04:09:37,844 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0125231-6b42-4fab-8615-1154cbbe0e22/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 04:09:37,849 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 04:09:37,849 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 04:09:37,870 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 04:09:37,871 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 04:09:37,871 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 04:09:37,872 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 04:09:37,873 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 04:09:37,873 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 04:09:37,874 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 04:09:37,874 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 04:09:37,875 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 04:09:37,875 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 04:09:37,876 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 04:09:37,876 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 04:09:37,877 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 04:09:37,877 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 04:09:37,878 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 04:09:37,878 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 04:09:37,879 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 04:09:37,879 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 04:09:37,880 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 04:09:37,880 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 04:09:37,881 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 04:09:37,881 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:09:37,882 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 04:09:37,882 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 04:09:37,882 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 04:09:37,883 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 04:09:37,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 04:09:37,884 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 04:09:37,884 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_c0125231-6b42-4fab-8615-1154cbbe0e22/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0125231-6b42-4fab-8615-1154cbbe0e22/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f2d013ffa4d7cd59307ce87b23dd696caa1ad1374742fbf879c50e37b4a890a2 [2023-12-03 04:09:38,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 04:09:38,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 04:09:38,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 04:09:38,112 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 04:09:38,113 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 04:09:38,114 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0125231-6b42-4fab-8615-1154cbbe0e22/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-89.i [2023-12-03 04:09:40,924 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 04:09:41,122 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 04:09:41,122 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0125231-6b42-4fab-8615-1154cbbe0e22/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-89.i [2023-12-03 04:09:41,132 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0125231-6b42-4fab-8615-1154cbbe0e22/bin/ukojak-verify-Qdu7aM0XO9/data/5db0f8b17/8f1a7ec055cf439faae9c0b3d4296d9f/FLAGf654592cd [2023-12-03 04:09:41,147 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0125231-6b42-4fab-8615-1154cbbe0e22/bin/ukojak-verify-Qdu7aM0XO9/data/5db0f8b17/8f1a7ec055cf439faae9c0b3d4296d9f [2023-12-03 04:09:41,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 04:09:41,151 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 04:09:41,152 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 04:09:41,152 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 04:09:41,157 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 04:09:41,158 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:09:41" (1/1) ... [2023-12-03 04:09:41,159 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41c39ef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:09:41, skipping insertion in model container [2023-12-03 04:09:41,159 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:09:41" (1/1) ... [2023-12-03 04:09:41,193 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 04:09:41,336 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_c0125231-6b42-4fab-8615-1154cbbe0e22/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-89.i[917,930] [2023-12-03 04:09:41,389 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:09:41,402 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 04:09:41,414 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_c0125231-6b42-4fab-8615-1154cbbe0e22/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-89.i[917,930] [2023-12-03 04:09:41,443 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:09:41,461 INFO L206 MainTranslator]: Completed translation [2023-12-03 04:09:41,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:09:41 WrapperNode [2023-12-03 04:09:41,462 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 04:09:41,463 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 04:09:41,463 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 04:09:41,463 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 04:09:41,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:09:41" (1/1) ... [2023-12-03 04:09:41,482 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:09:41" (1/1) ... [2023-12-03 04:09:41,520 INFO L138 Inliner]: procedures = 26, calls = 136, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 403 [2023-12-03 04:09:41,520 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 04:09:41,521 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 04:09:41,521 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 04:09:41,521 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 04:09:41,530 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:09:41" (1/1) ... [2023-12-03 04:09:41,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:09:41" (1/1) ... [2023-12-03 04:09:41,536 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:09:41" (1/1) ... [2023-12-03 04:09:41,536 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:09:41" (1/1) ... [2023-12-03 04:09:41,552 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:09:41" (1/1) ... [2023-12-03 04:09:41,556 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:09:41" (1/1) ... [2023-12-03 04:09:41,560 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:09:41" (1/1) ... [2023-12-03 04:09:41,563 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:09:41" (1/1) ... [2023-12-03 04:09:41,569 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 04:09:41,570 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 04:09:41,570 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 04:09:41,570 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 04:09:41,571 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:09:41" (1/1) ... [2023-12-03 04:09:41,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:09:41,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0125231-6b42-4fab-8615-1154cbbe0e22/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 04:09:41,600 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0125231-6b42-4fab-8615-1154cbbe0e22/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 04:09:41,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0125231-6b42-4fab-8615-1154cbbe0e22/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 04:09:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 04:09:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-03 04:09:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-03 04:09:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-03 04:09:41,632 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-03 04:09:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 04:09:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 04:09:41,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 04:09:41,740 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 04:09:41,742 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 04:09:42,167 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 04:09:42,759 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 04:09:42,759 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 04:09:42,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:09:42 BoogieIcfgContainer [2023-12-03 04:09:42,760 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 04:09:42,761 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 04:09:42,762 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 04:09:42,769 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 04:09:42,769 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:09:42" (1/1) ... [2023-12-03 04:09:42,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 04:09:42,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:09:42,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 35 states and 48 transitions. [2023-12-03 04:09:42,823 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 48 transitions. [2023-12-03 04:09:42,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-03 04:09:42,828 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:09:42,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:09:43,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:09:43,485 INFO L262 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 147 conjunts are in the unsatisfiable core [2023-12-03 04:09:43,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:09:44,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 41 [2023-12-03 04:09:46,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 46 [2023-12-03 04:09:48,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 55 [2023-12-03 04:09:50,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 47 [2023-12-03 04:09:51,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 67 [2023-12-03 04:09:52,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 67 [2023-12-03 04:09:59,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 247 treesize of output 212 [2023-12-03 04:09:59,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 221 treesize of output 227 [2023-12-03 04:10:00,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 247 [2023-12-03 04:10:00,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 25 [2023-12-03 04:10:03,039 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 4 proven. 132 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-03 04:10:09,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:10:09,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 64 states and 152 transitions. [2023-12-03 04:10:09,153 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 152 transitions. [2023-12-03 04:10:09,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-03 04:10:09,157 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:10:09,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:10:09,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:10:09,625 INFO L262 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 167 conjunts are in the unsatisfiable core [2023-12-03 04:10:09,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:10:10,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 35 [2023-12-03 04:10:11,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 47 [2023-12-03 04:10:14,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 59 [2023-12-03 04:10:17,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 64 [2023-12-03 04:10:19,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 59 [2023-12-03 04:10:20,585 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 0 case distinctions, treesize of input 59 treesize of output 59 [2023-12-03 04:10:50,275 WARN L293 SmtUtils]: Spent 7.23s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-03 04:11:09,276 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 18 proven. 122 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-03 04:11:55,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:11:55,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 95 states and 361 transitions. [2023-12-03 04:11:55,356 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 361 transitions. [2023-12-03 04:11:55,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-03 04:11:55,361 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:11:55,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:11:55,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:11:55,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 132 conjunts are in the unsatisfiable core [2023-12-03 04:11:55,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:11:56,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2023-12-03 04:11:58,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 37 [2023-12-03 04:11:59,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 37 [2023-12-03 04:12:01,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2023-12-03 04:12:02,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2023-12-03 04:12:03,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2023-12-03 04:12:40,935 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 4 proven. 132 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-03 04:13:00,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-03 04:13:01,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:13:01,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 101 states and 430 transitions. [2023-12-03 04:13:01,317 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 430 transitions. [2023-12-03 04:13:01,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-03 04:13:01,323 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:13:01,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:13:01,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:13:01,673 INFO L262 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 145 conjunts are in the unsatisfiable core [2023-12-03 04:13:01,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:13:02,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2023-12-03 04:13:04,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 35 [2023-12-03 04:13:07,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 47 [2023-12-03 04:13:10,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 59 [2023-12-03 04:13:12,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 59 [2023-12-03 04:13:13,682 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 0 case distinctions, treesize of input 59 treesize of output 59 [2023-12-03 04:13:42,157 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 10 proven. 126 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-03 04:14:25,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:14:25,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 126 states and 593 transitions. [2023-12-03 04:14:25,908 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 593 transitions. [2023-12-03 04:14:25,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-03 04:14:25,913 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:14:25,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:14:28,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:14:28,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 203 conjunts are in the unsatisfiable core [2023-12-03 04:14:28,520 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:14:29,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2023-12-03 04:14:33,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2023-12-03 04:14:35,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2023-12-03 04:14:37,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2023-12-03 04:14:39,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2023-12-03 04:14:40,864 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2023-12-03 04:14:45,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 247 treesize of output 258 [2023-12-03 04:14:45,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 04:14:45,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 04:14:45,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 04:14:45,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 205 treesize of output 266 [2023-12-03 04:14:46,207 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-03 04:14:47,016 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-12-03 04:14:47,017 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2023-12-03 04:14:47,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 160 treesize of output 183 [2023-12-03 04:14:47,057 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-03 04:14:47,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 169 treesize of output 171 [2023-12-03 04:14:47,086 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 25 treesize of output 19 [2023-12-03 04:14:47,223 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 113 treesize of output 73 [2023-12-03 04:14:47,232 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-12-03 04:14:47,232 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2023-12-03 04:14:47,273 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-12-03 04:14:47,274 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2023-12-03 04:14:47,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 04:14:47,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 04:14:47,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 105 [2023-12-03 04:14:47,357 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-12-03 04:14:47,357 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2023-12-03 04:14:47,479 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 3 [2023-12-03 04:14:50,172 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 142 treesize of output 127 [2023-12-03 04:14:50,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 04:14:50,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 04:14:50,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 86 treesize of output 75 [2023-12-03 04:14:55,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 04:14:55,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 04:14:55,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 14 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 111 [2023-12-03 04:15:01,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 04:15:01,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 04:15:01,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 04:15:01,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 17 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 135 treesize of output 123 [2023-12-03 04:15:07,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 04:15:07,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 04:15:07,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 04:15:07,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 18 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 135 [2023-12-03 04:15:11,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 04:15:11,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 04:15:11,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 04:15:11,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 17 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 128 [2023-12-03 04:15:15,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 04:15:15,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 04:15:15,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 04:15:15,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 12 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 108 [2023-12-03 04:15:58,984 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 34 proven. 521 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2023-12-03 04:16:56,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-03 04:17:00,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-03 04:18:48,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-03 04:18:50,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-03 04:18:50,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:18:50,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 169 states and 878 transitions. [2023-12-03 04:18:50,948 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 878 transitions. [2023-12-03 04:18:50,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-03 04:18:50,953 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:18:50,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:18:51,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:18:51,834 INFO L262 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 154 conjunts are in the unsatisfiable core [2023-12-03 04:18:51,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:19:04,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 43 [2023-12-03 04:19:08,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 55 [2023-12-03 04:19:13,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 67 [2023-12-03 04:19:19,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 79 [2023-12-03 04:19:21,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 79 [2023-12-03 04:19:24,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 72 [2023-12-03 04:20:33,484 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 155 proven. 367 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-12-03 04:22:14,422 WARN L293 SmtUtils]: Spent 9.11s on a formula simplification. DAG size of input: 135 DAG size of output: 133 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 04:23:08,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-03 04:23:09,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-03 04:23:11,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:23:11,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 199 states and 1159 transitions. [2023-12-03 04:23:11,954 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 1159 transitions. [2023-12-03 04:23:11,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-03 04:23:11,959 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:23:11,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:23:13,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:23:13,402 INFO L262 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 156 conjunts are in the unsatisfiable core [2023-12-03 04:23:13,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:23:22,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 43 [2023-12-03 04:23:24,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 55 [2023-12-03 04:23:26,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 67 [2023-12-03 04:23:32,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 79 [2023-12-03 04:23:33,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 79 [2023-12-03 04:23:35,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 72