./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/eqn2f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ddf76c34-4920-479a-a1ee-436bead9bb48/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ddf76c34-4920-479a-a1ee-436bead9bb48/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ddf76c34-4920-479a-a1ee-436bead9bb48/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ddf76c34-4920-479a-a1ee-436bead9bb48/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/eqn2f.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ddf76c34-4920-479a-a1ee-436bead9bb48/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ddf76c34-4920-479a-a1ee-436bead9bb48/bin/ukojak --witnessprinter.witness.filename witness.graphml --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 d865065a7c8613a66332b84e9d5b1d95cce65492 ....................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 16:22:13,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:22:13,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:22:13,524 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:22:13,525 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:22:13,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:22:13,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:22:13,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:22:13,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:22:13,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:22:13,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:22:13,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:22:13,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:22:13,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:22:13,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:22:13,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:22:13,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:22:13,571 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:22:13,574 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:22:13,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:22:13,584 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:22:13,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:22:13,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:22:13,590 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:22:13,598 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:22:13,599 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:22:13,599 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:22:13,601 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:22:13,602 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:22:13,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:22:13,604 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:22:13,606 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:22:13,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:22:13,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:22:13,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:22:13,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:22:13,612 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:22:13,612 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:22:13,613 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:22:13,614 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:22:13,614 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:22:13,618 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ddf76c34-4920-479a-a1ee-436bead9bb48/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 16:22:13,657 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:22:13,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:22:13,658 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:22:13,659 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:22:13,659 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:22:13,660 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:22:13,660 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:22:13,660 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:22:13,660 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:22:13,661 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:22:13,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:22:13,662 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:22:13,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:22:13,662 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:22:13,663 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:22:13,663 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:22:13,663 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:22:13,663 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:22:13,664 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:22:13,664 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:22:13,664 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:22:13,664 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:22:13,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:22:13,665 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:22:13,665 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:22:13,665 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:22:13,666 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:22:13,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:22:13,666 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:22:13,668 INFO L138 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-vcloud-master/worker/run_dir_ddf76c34-4920-479a-a1ee-436bead9bb48/bin/ukojak/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ddf76c34-4920-479a-a1ee-436bead9bb48/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d865065a7c8613a66332b84e9d5b1d95cce65492 [2020-12-01 16:22:13,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:22:14,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:22:14,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:22:14,015 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:22:14,016 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:22:14,018 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ddf76c34-4920-479a-a1ee-436bead9bb48/bin/ukojak/../../sv-benchmarks/c/array-fpi/eqn2f.c [2020-12-01 16:22:14,103 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ddf76c34-4920-479a-a1ee-436bead9bb48/bin/ukojak/data/51ad8a0fa/7e6e6c62eba046a3a709697d210b1d42/FLAG9f50845bd [2020-12-01 16:22:14,603 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:22:14,604 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ddf76c34-4920-479a-a1ee-436bead9bb48/sv-benchmarks/c/array-fpi/eqn2f.c [2020-12-01 16:22:14,617 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ddf76c34-4920-479a-a1ee-436bead9bb48/bin/ukojak/data/51ad8a0fa/7e6e6c62eba046a3a709697d210b1d42/FLAG9f50845bd [2020-12-01 16:22:14,954 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ddf76c34-4920-479a-a1ee-436bead9bb48/bin/ukojak/data/51ad8a0fa/7e6e6c62eba046a3a709697d210b1d42 [2020-12-01 16:22:14,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:22:14,960 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:22:14,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:22:14,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:22:14,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:22:14,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:22:14" (1/1) ... [2020-12-01 16:22:14,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65ddf846 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:14, skipping insertion in model container [2020-12-01 16:22:14,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:22:14" (1/1) ... [2020-12-01 16:22:14,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:22:15,004 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:22:15,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:22:15,263 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:22:15,283 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:22:15,298 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:22:15,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:15 WrapperNode [2020-12-01 16:22:15,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:22:15,300 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:22:15,300 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:22:15,300 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:22:15,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:15" (1/1) ... [2020-12-01 16:22:15,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:15" (1/1) ... [2020-12-01 16:22:15,352 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:22:15,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:22:15,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:22:15,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:22:15,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:15" (1/1) ... [2020-12-01 16:22:15,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:15" (1/1) ... [2020-12-01 16:22:15,372 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:15" (1/1) ... [2020-12-01 16:22:15,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:15" (1/1) ... [2020-12-01 16:22:15,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:15" (1/1) ... [2020-12-01 16:22:15,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:15" (1/1) ... [2020-12-01 16:22:15,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:15" (1/1) ... [2020-12-01 16:22:15,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:22:15,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:22:15,412 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:22:15,412 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:22:15,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ddf76c34-4920-479a-a1ee-436bead9bb48/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:22:15,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:22:15,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:22:15,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 16:22:15,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 16:22:15,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:22:15,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:22:15,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 16:22:15,966 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:22:15,966 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-12-01 16:22:15,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:22:15 BoogieIcfgContainer [2020-12-01 16:22:15,968 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:22:15,969 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:22:15,969 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:22:15,987 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:22:15,988 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:22:15" (1/1) ... [2020-12-01 16:22:15,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:22:16,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:22:16,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2020-12-01 16:22:16,031 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2020-12-01 16:22:16,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:22:16,033 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:22:16,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:22:16,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-01 16:22:16,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:22:16,357 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 16:22:16,358 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 39 [2020-12-01 16:22:16,370 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 16:22:16,456 INFO L625 ElimStorePlain]: treesize reduction 16, result has 64.4 percent of original size [2020-12-01 16:22:16,470 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 16:22:16,472 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:14 [2020-12-01 16:22:16,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:22:16,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:22:16,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 15 states and 28 transitions. [2020-12-01 16:22:16,755 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 28 transitions. [2020-12-01 16:22:16,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 16:22:16,757 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:22:16,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:22:16,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 16:22:16,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:22:16,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:22:17,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:22:17,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 18 states and 42 transitions. [2020-12-01 16:22:17,476 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 42 transitions. [2020-12-01 16:22:17,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 16:22:17,476 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:22:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:22:17,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 16:22:17,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:22:17,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:22:17,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:22:17,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 19 states and 44 transitions. [2020-12-01 16:22:17,868 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 44 transitions. [2020-12-01 16:22:17,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 16:22:17,868 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:22:17,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:22:17,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 24 conjunts are in the unsatisfiable core [2020-12-01 16:22:17,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:22:17,945 INFO L382 Elim1Store]: Elim1 did not use preprocessing 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 10 treesize of output 8 [2020-12-01 16:22:17,947 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 16:22:17,954 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 16:22:17,960 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2020-12-01 16:22:17,961 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-01 16:22:17,969 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 16:22:17,970 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 16:22:17,970 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:19 [2020-12-01 16:22:18,078 INFO L348 Elim1Store]: treesize reduction 54, result has 46.0 percent of original size [2020-12-01 16:22:18,078 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 72 [2020-12-01 16:22:18,088 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 16:22:18,130 INFO L625 ElimStorePlain]: treesize reduction 25, result has 65.3 percent of original size [2020-12-01 16:22:18,134 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:22:18,142 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-01 16:22:18,143 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:45, output treesize:47 [2020-12-01 16:22:18,148 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:22:18,232 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:22:18,369 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:22:18,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-01 16:22:18,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-01 16:22:18,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-01 16:22:18,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-01 16:22:18,478 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 16:22:18,479 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 95 [2020-12-01 16:22:18,489 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 16:22:18,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-01 16:22:18,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-01 16:22:18,622 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2020-12-01 16:22:18,624 INFO L348 Elim1Store]: treesize reduction 17, result has 83.7 percent of original size [2020-12-01 16:22:18,625 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 72 treesize of output 172 [2020-12-01 16:22:18,650 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-01 16:22:18,808 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 43 [2020-12-01 16:22:18,809 INFO L625 ElimStorePlain]: treesize reduction 238, result has 36.5 percent of original size [2020-12-01 16:22:18,844 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 7 dim-0 vars, and 2 xjuncts. [2020-12-01 16:22:18,845 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:145, output treesize:137 [2020-12-01 16:22:20,669 WARN L197 SmtUtils]: Spent 1.52 s on a formula simplification that was a NOOP. DAG size: 64 [2020-12-01 16:22:27,395 WARN L197 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 67 [2020-12-01 16:22:27,416 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-01 16:22:27,417 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:22:27,431 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 16:22:27,434 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 16:22:27,436 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 16:22:27,440 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 16:22:27,442 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 16:22:27,446 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-01 16:22:27,480 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 16:22:27,483 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 16:22:27,485 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 16:22:27,492 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 16:22:27,493 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-01 16:22:27,499 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-01 16:22:27,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:22:29,876 WARN L197 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 65 [2020-12-01 16:22:41,822 WARN L197 SmtUtils]: Spent 1.78 s on a formula simplification that was a NOOP. DAG size: 68 [2020-12-01 16:22:41,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:22:41,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 21 states and 52 transitions. [2020-12-01 16:22:41,828 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 52 transitions. [2020-12-01 16:22:41,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 16:22:41,829 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:22:41,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:22:41,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 24 conjunts are in the unsatisfiable core [2020-12-01 16:22:41,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:22:41,930 INFO L382 Elim1Store]: Elim1 did not use preprocessing 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 10 treesize of output 8 [2020-12-01 16:22:41,933 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 16:22:41,942 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 16:22:41,951 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2020-12-01 16:22:41,953 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-01 16:22:41,962 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 16:22:41,963 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 16:22:41,963 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:19 [2020-12-01 16:22:42,022 INFO L348 Elim1Store]: treesize reduction 54, result has 46.0 percent of original size [2020-12-01 16:22:42,023 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 72 [2020-12-01 16:22:42,027 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 16:22:42,069 INFO L625 ElimStorePlain]: treesize reduction 25, result has 65.3 percent of original size [2020-12-01 16:22:42,071 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:22:42,073 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-01 16:22:42,073 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:45, output treesize:47 [2020-12-01 16:22:42,075 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:22:42,158 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:22:42,168 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:22:42,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-01 16:22:42,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-01 16:22:42,374 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2020-12-01 16:22:42,375 INFO L348 Elim1Store]: treesize reduction 17, result has 83.7 percent of original size [2020-12-01 16:22:42,375 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 72 treesize of output 172 [2020-12-01 16:22:42,390 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 16:22:42,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-01 16:22:42,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-01 16:22:42,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-01 16:22:42,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-01 16:22:42,438 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 16:22:42,439 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 95 [2020-12-01 16:22:42,444 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-01 16:22:42,634 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 43 [2020-12-01 16:22:42,635 INFO L625 ElimStorePlain]: treesize reduction 188, result has 42.2 percent of original size [2020-12-01 16:22:42,649 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 7 dim-0 vars, and 2 xjuncts. [2020-12-01 16:22:42,649 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:145, output treesize:137 [2020-12-01 16:22:50,011 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-01 16:22:50,011 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:22:50,019 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 16:22:50,021 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 16:22:50,022 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 16:22:50,025 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 16:22:50,026 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 16:22:50,028 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-01 16:22:50,044 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 16:22:50,046 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 16:22:50,047 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 16:22:50,051 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 16:22:50,052 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-01 16:22:50,055 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-01 16:22:50,078 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:22:50,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:22:50,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 22 states and 56 transitions. [2020-12-01 16:22:50,821 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 56 transitions. [2020-12-01 16:22:50,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 16:22:50,821 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:22:50,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:22:50,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 16:22:50,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:22:51,134 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:22:52,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:22:52,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 15 states and 22 transitions. [2020-12-01 16:22:52,722 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 22 transitions. [2020-12-01 16:22:52,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 16:22:52,722 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:22:52,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:22:52,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 16:22:52,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:22:52,866 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:22:53,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:22:53,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 19 states and 28 transitions. [2020-12-01 16:22:53,689 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 28 transitions. [2020-12-01 16:22:53,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:22:53,689 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:22:53,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:22:53,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 16:22:53,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:22:53,742 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 16:22:54,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:22:54,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 20 states and 29 transitions. [2020-12-01 16:22:54,207 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 29 transitions. [2020-12-01 16:22:54,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 16:22:54,207 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:22:54,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:22:54,265 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:22:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:22:54,290 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:22:54,591 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 9 iterations. [2020-12-01 16:22:54,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:22:54 ImpRootNode [2020-12-01 16:22:54,622 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:22:54,623 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:22:54,623 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:22:54,623 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:22:54,624 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:22:15" (3/4) ... [2020-12-01 16:22:54,626 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 16:22:54,674 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ddf76c34-4920-479a-a1ee-436bead9bb48/bin/ukojak/witness.graphml [2020-12-01 16:22:54,675 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:22:54,676 INFO L168 Benchmark]: Toolchain (without parser) took 39715.74 ms. Allocated memory was 92.3 MB in the beginning and 142.6 MB in the end (delta: 50.3 MB). Free memory was 62.5 MB in the beginning and 104.7 MB in the end (delta: -42.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. [2020-12-01 16:22:54,677 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 92.3 MB. Free memory is still 50.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:22:54,677 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.37 ms. Allocated memory is still 92.3 MB. Free memory was 62.2 MB in the beginning and 68.3 MB in the end (delta: -6.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:22:54,678 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.45 ms. Allocated memory is still 92.3 MB. Free memory was 68.3 MB in the beginning and 66.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:22:54,679 INFO L168 Benchmark]: Boogie Preprocessor took 57.37 ms. Allocated memory is still 92.3 MB. Free memory was 66.7 MB in the beginning and 65.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:22:54,679 INFO L168 Benchmark]: RCFGBuilder took 557.37 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 65.3 MB in the beginning and 93.4 MB in the end (delta: -28.1 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.1 GB. [2020-12-01 16:22:54,680 INFO L168 Benchmark]: CodeCheck took 38653.20 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 93.4 MB in the beginning and 107.8 MB in the end (delta: -14.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:22:54,681 INFO L168 Benchmark]: Witness Printer took 52.26 ms. Allocated memory is still 142.6 MB. Free memory was 107.8 MB in the beginning and 104.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 16:22:54,684 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 38.5s, OverallIterations: 9, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 768 SDtfs, 148 SDslu, 0 SDs, 0 SdLazy, 9842 SolverSat, 3142 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 798 GetRequests, 689 SyntacticMatches, 17 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3596 ImplicationChecksByTransitivity, 34.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 18.7s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 64 ConstructedInterpolants, 8 QuantifiedInterpolants, 8214 SizeOfPredicates, 43 NumberOfNonLiveVariables, 700 ConjunctsInSsa, 89 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 6/15 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L13] COND FALSE !(!cond) [L27] int i; [L28] long long *a = malloc(sizeof(long long)*N); [L29] long long *b = malloc(sizeof(long long)*N); [L31] a[0] = 8 [L32] b[0] = 1 [L34] i=1 VAL [N=2] [L34] COND TRUE i