./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_mannadiv.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde845e-1aba-49ca-b62c-33f6748f1cfb/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde845e-1aba-49ca-b62c-33f6748f1cfb/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde845e-1aba-49ca-b62c-33f6748f1cfb/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde845e-1aba-49ca-b62c-33f6748f1cfb/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_mannadiv.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde845e-1aba-49ca-b62c-33f6748f1cfb/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde845e-1aba-49ca-b62c-33f6748f1cfb/bin/ukojak-verify-ImItNfHLgk --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 305ef194ca8c72f4da0a6deb18ed40b72305718d65c18a21aa3fcb3830c499e5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:29:57,248 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:29:57,366 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde845e-1aba-49ca-b62c-33f6748f1cfb/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-09 00:29:57,373 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:29:57,378 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:29:57,418 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:29:57,420 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:29:57,421 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:29:57,422 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:29:57,424 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:29:57,424 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:29:57,425 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:29:57,425 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:29:57,426 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:29:57,426 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:29:57,426 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:29:57,430 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:29:57,430 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:29:57,431 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:29:57,431 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:29:57,431 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:29:57,432 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:29:57,435 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:29:57,436 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:29:57,436 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:29:57,437 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:29:57,437 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:29:57,437 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:29:57,438 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:29:57,438 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:29:57,438 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:29:57,440 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:29:57,440 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:29:57,441 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_edde845e-1aba-49ca-b62c-33f6748f1cfb/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde845e-1aba-49ca-b62c-33f6748f1cfb/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 305ef194ca8c72f4da0a6deb18ed40b72305718d65c18a21aa3fcb3830c499e5 [2024-11-09 00:29:57,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:29:57,825 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:29:57,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:29:57,831 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:29:57,831 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:29:57,833 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde845e-1aba-49ca-b62c-33f6748f1cfb/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/recursified_nla-digbench/recursified_mannadiv.c Unable to find full path for "g++" [2024-11-09 00:30:00,141 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:30:00,358 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:30:00,359 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde845e-1aba-49ca-b62c-33f6748f1cfb/sv-benchmarks/c/recursified_nla-digbench/recursified_mannadiv.c [2024-11-09 00:30:00,372 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde845e-1aba-49ca-b62c-33f6748f1cfb/bin/ukojak-verify-ImItNfHLgk/data/1b292b10b/3a8e1d9cba9742f4b71942a6f1ecf8f2/FLAG7cd397c0e [2024-11-09 00:30:00,704 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde845e-1aba-49ca-b62c-33f6748f1cfb/bin/ukojak-verify-ImItNfHLgk/data/1b292b10b/3a8e1d9cba9742f4b71942a6f1ecf8f2 [2024-11-09 00:30:00,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:30:00,708 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:30:00,710 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:30:00,710 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:30:00,716 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:30:00,717 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:30:00" (1/1) ... [2024-11-09 00:30:00,718 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@845630c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:30:00, skipping insertion in model container [2024-11-09 00:30:00,719 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:30:00" (1/1) ... [2024-11-09 00:30:00,741 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:30:00,960 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde845e-1aba-49ca-b62c-33f6748f1cfb/sv-benchmarks/c/recursified_nla-digbench/recursified_mannadiv.c[1105,1118] [2024-11-09 00:30:00,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:30:00,991 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:30:01,007 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde845e-1aba-49ca-b62c-33f6748f1cfb/sv-benchmarks/c/recursified_nla-digbench/recursified_mannadiv.c[1105,1118] [2024-11-09 00:30:01,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:30:01,043 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:30:01,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:30:01 WrapperNode [2024-11-09 00:30:01,044 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:30:01,046 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:30:01,046 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:30:01,046 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:30:01,056 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:30:01" (1/1) ... [2024-11-09 00:30:01,066 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:30:01" (1/1) ... [2024-11-09 00:30:01,089 INFO L138 Inliner]: procedures = 16, calls = 57, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 65 [2024-11-09 00:30:01,090 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:30:01,091 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:30:01,091 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:30:01,092 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:30:01,118 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:30:01" (1/1) ... [2024-11-09 00:30:01,118 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:30:01" (1/1) ... [2024-11-09 00:30:01,121 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:30:01" (1/1) ... [2024-11-09 00:30:01,121 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:30:01" (1/1) ... [2024-11-09 00:30:01,135 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:30:01" (1/1) ... [2024-11-09 00:30:01,137 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:30:01" (1/1) ... [2024-11-09 00:30:01,143 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:30:01" (1/1) ... [2024-11-09 00:30:01,144 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:30:01" (1/1) ... [2024-11-09 00:30:01,150 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:30:01,152 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:30:01,152 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:30:01,152 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:30:01,153 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:30:01" (1/1) ... [2024-11-09 00:30:01,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:30:01,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde845e-1aba-49ca-b62c-33f6748f1cfb/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:30:01,213 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde845e-1aba-49ca-b62c-33f6748f1cfb/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:30:01,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde845e-1aba-49ca-b62c-33f6748f1cfb/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:30:01,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:30:01,249 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 00:30:01,249 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 00:30:01,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 00:30:01,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 00:30:01,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 00:30:01,251 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_31_to_42_0 [2024-11-09 00:30:01,252 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_31_to_42_0 [2024-11-09 00:30:01,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:30:01,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:30:01,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 00:30:01,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 00:30:01,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 00:30:01,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 00:30:01,381 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:30:01,383 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:30:01,630 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-09 00:30:01,630 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:30:01,706 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:30:01,707 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 00:30:01,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:30:01 BoogieIcfgContainer [2024-11-09 00:30:01,708 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:30:01,710 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:30:01,710 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:30:01,724 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:30:01,725 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:30:01" (1/1) ... [2024-11-09 00:30:01,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:30:01,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:30:01,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2024-11-09 00:30:01,812 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2024-11-09 00:30:01,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 00:30:01,817 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:30:01,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:30:02,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 00:30:02,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:30:02,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-11-09 00:30:02,231 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:30:02,417 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-11-09 00:30:02,418 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 52 treesize of output 46 [2024-11-09 00:30:02,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 00:30:02,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 00:30:02,728 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 29 [2024-11-09 00:30:03,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 16 [2024-11-09 00:30:03,357 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 00:30:03,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:30:03,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 31 states and 39 transitions. [2024-11-09 00:30:03,843 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2024-11-09 00:30:03,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 00:30:03,845 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:30:03,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:30:04,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 00:30:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:30:04,225 WARN L253 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 153 conjuncts are in the unsatisfiable core [2024-11-09 00:30:04,234 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:30:04,269 INFO L349 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2024-11-09 00:30:04,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 1 [2024-11-09 00:30:04,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 00:30:04,301 INFO L349 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2024-11-09 00:30:04,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 53 [2024-11-09 00:30:04,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 00:30:04,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 00:30:04,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 29 [2024-11-09 00:30:06,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 00:30:06,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 00:30:06,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 134 [2024-11-09 00:30:06,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 00:30:06,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 46 [2024-11-09 00:30:06,791 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 [2024-11-09 00:30:06,803 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 11 treesize of output 9 [2024-11-09 00:30:06,901 INFO L159 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 00:30:06,904 INFO L164 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2024-11-09 00:30:08,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 00:30:08,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 00:30:08,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 00:30:08,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 00:30:08,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 00:30:08,119 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-09 00:30:08,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 200 treesize of output 128 [2024-11-09 00:30:08,158 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 7 treesize of output 5 [2024-11-09 00:30:08,466 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 00:30:15,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:30:15,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 44 states and 74 transitions. [2024-11-09 00:30:15,096 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 74 transitions. [2024-11-09 00:30:15,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 00:30:15,098 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:30:15,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:30:15,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 00:30:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:30:15,417 WARN L253 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 151 conjuncts are in the unsatisfiable core [2024-11-09 00:30:15,423 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:30:15,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 34 [2024-11-09 00:30:15,454 INFO L159 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 00:30:15,455 INFO L164 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2024-11-09 00:30:15,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 41 [2024-11-09 00:30:15,473 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 12 treesize of output 1 [2024-11-09 00:30:15,482 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 12 treesize of output 11 [2024-11-09 00:30:15,490 INFO L159 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 00:30:15,490 INFO L164 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2024-11-09 00:30:15,496 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 [2024-11-09 00:30:15,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 20 treesize of output 9 [2024-11-09 00:30:15,510 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 [2024-11-09 00:30:15,522 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-11-09 00:30:15,523 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 48 treesize of output 42 [2024-11-09 00:30:15,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 00:30:15,935 INFO L349 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2024-11-09 00:30:15,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 132 treesize of output 88 [2024-11-09 00:30:15,958 INFO L159 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 00:30:15,960 INFO L164 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2024-11-09 00:30:16,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 11 [2024-11-09 00:32:20,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 00:32:20,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 00:32:20,391 INFO L349 Elim1Store]: treesize reduction 62, result has 1.6 percent of original size [2024-11-09 00:32:20,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 4 case distinctions, treesize of input 162 treesize of output 120 [2024-11-09 00:32:20,458 INFO L159 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 00:32:20,459 INFO L164 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2024-11-09 00:32:20,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 00:32:20,644 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-09 00:32:20,645 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 4 case distinctions, treesize of input 74 treesize of output 60 [2024-11-09 00:32:20,661 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 11 treesize of output 9 [2024-11-09 00:32:21,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 00:32:21,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 00:32:21,744 INFO L349 Elim1Store]: treesize reduction 16, result has 61.0 percent of original size [2024-11-09 00:32:21,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 168 treesize of output 120 [2024-11-09 00:32:21,759 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 61 treesize of output 59 [2024-11-09 00:32:21,769 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 59 treesize of output 57 [2024-11-09 00:32:21,775 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 57 treesize of output 55 [2024-11-09 00:32:22,000 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 00:33:38,024 WARN L286 SmtUtils]: Spent 10.17s on a formula simplification that was a NOOP. DAG size: 64 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 00:34:09,460 WARN L851 $PredicateComparison]: unable to prove that (and (<= 1 |c___VERIFIER_assert_#in~cond|) (exists ((v_func_to_recursive_line_31_to_42_0_~y1.base_BEFORE_CALL_1 Int) (v_func_to_recursive_line_31_to_42_0_~y1.offset_BEFORE_CALL_1 Int) (v_func_to_recursive_line_31_to_42_0_~y3.offset_BEFORE_CALL_1 Int) (v_func_to_recursive_line_31_to_42_0_~x1.base_BEFORE_CALL_1 Int) (v_func_to_recursive_line_31_to_42_0_~y3.base_BEFORE_CALL_1 Int) (v_func_to_recursive_line_31_to_42_0_~y2.base_BEFORE_CALL_1 Int)) (and (not (= v_func_to_recursive_line_31_to_42_0_~y2.base_BEFORE_CALL_1 v_func_to_recursive_line_31_to_42_0_~y1.base_BEFORE_CALL_1)) (= (select (select |c_#memory_int| v_func_to_recursive_line_31_to_42_0_~x1.base_BEFORE_CALL_1) 0) (select (select |c_#memory_int| v_func_to_recursive_line_31_to_42_0_~y3.base_BEFORE_CALL_1) v_func_to_recursive_line_31_to_42_0_~y3.offset_BEFORE_CALL_1)) (not (= v_func_to_recursive_line_31_to_42_0_~y2.base_BEFORE_CALL_1 v_func_to_recursive_line_31_to_42_0_~x1.base_BEFORE_CALL_1)) (= (select (select |c_#memory_int| v_func_to_recursive_line_31_to_42_0_~y1.base_BEFORE_CALL_1) v_func_to_recursive_line_31_to_42_0_~y1.offset_BEFORE_CALL_1) 0) (not (= v_func_to_recursive_line_31_to_42_0_~y3.base_BEFORE_CALL_1 v_func_to_recursive_line_31_to_42_0_~y2.base_BEFORE_CALL_1)) (not (= v_func_to_recursive_line_31_to_42_0_~y3.base_BEFORE_CALL_1 v_func_to_recursive_line_31_to_42_0_~y1.base_BEFORE_CALL_1)) (not (= v_func_to_recursive_line_31_to_42_0_~y3.base_BEFORE_CALL_1 v_func_to_recursive_line_31_to_42_0_~x1.base_BEFORE_CALL_1)) (= (select (select |c_#memory_int| v_func_to_recursive_line_31_to_42_0_~y2.base_BEFORE_CALL_1) 0) 0) (not (= v_func_to_recursive_line_31_to_42_0_~x1.base_BEFORE_CALL_1 v_func_to_recursive_line_31_to_42_0_~y1.base_BEFORE_CALL_1)))) (not (exists ((v_func_to_recursive_line_31_to_42_0_~y1.base_BEFORE_CALL_3 Int) (v_func_to_recursive_line_31_to_42_0_~y2.base_BEFORE_CALL_3 Int) (v_func_to_recursive_line_31_to_42_0_~x1.base_BEFORE_CALL_3 Int) (v_func_to_recursive_line_31_to_42_0_~y3.base_BEFORE_CALL_3 Int)) (and (not (= v_func_to_recursive_line_31_to_42_0_~y2.base_BEFORE_CALL_3 v_func_to_recursive_line_31_to_42_0_~x1.base_BEFORE_CALL_3)) (not (= v_func_to_recursive_line_31_to_42_0_~y3.base_BEFORE_CALL_3 v_func_to_recursive_line_31_to_42_0_~x1.base_BEFORE_CALL_3)) (= (select (select |c_#memory_int| v_func_to_recursive_line_31_to_42_0_~y1.base_BEFORE_CALL_3) 0) 0) (not (= v_func_to_recursive_line_31_to_42_0_~y3.base_BEFORE_CALL_3 v_func_to_recursive_line_31_to_42_0_~y1.base_BEFORE_CALL_3)) (= (select (select |c_#memory_int| v_func_to_recursive_line_31_to_42_0_~y2.base_BEFORE_CALL_3) 0) 0) (not (= v_func_to_recursive_line_31_to_42_0_~y2.base_BEFORE_CALL_3 v_func_to_recursive_line_31_to_42_0_~y1.base_BEFORE_CALL_3)) (= (select (select |c_#memory_int| v_func_to_recursive_line_31_to_42_0_~x1.base_BEFORE_CALL_3) 0) (select (select |c_#memory_int| v_func_to_recursive_line_31_to_42_0_~y3.base_BEFORE_CALL_3) 0)) (not (= v_func_to_recursive_line_31_to_42_0_~y3.base_BEFORE_CALL_3 v_func_to_recursive_line_31_to_42_0_~y2.base_BEFORE_CALL_3)))))) is different from false [2024-11-09 00:34:20,279 WARN L286 SmtUtils]: Spent 10.52s on a formula simplification that was a NOOP. DAG size: 65 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 00:37:54,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-09 00:38:04,908 WARN L286 SmtUtils]: Spent 10.19s on a formula simplification that was a NOOP. DAG size: 66 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 00:41:07,536 WARN L286 SmtUtils]: Spent 14.27s on a formula simplification that was a NOOP. DAG size: 67 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 00:44:20,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 00:44:31,244 WARN L286 SmtUtils]: Spent 10.14s on a formula simplification that was a NOOP. DAG size: 64 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)