./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/eqn5f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f582462e-906e-4042-a9af-7307c2ceae29/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f582462e-906e-4042-a9af-7307c2ceae29/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f582462e-906e-4042-a9af-7307c2ceae29/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f582462e-906e-4042-a9af-7307c2ceae29/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/eqn5f.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f582462e-906e-4042-a9af-7307c2ceae29/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f582462e-906e-4042-a9af-7307c2ceae29/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 b8372a31944d45846edae8fd3de2e59236f8e911 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-a4ecdab [2020-11-30 00:13:30,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:13:30,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:13:30,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:13:30,930 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:13:30,931 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:13:30,933 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:13:30,936 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:13:30,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:13:30,939 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:13:30,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:13:30,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:13:30,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:13:30,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:13:30,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:13:30,947 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:13:30,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:13:30,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:13:30,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:13:30,954 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:13:30,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:13:30,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:13:30,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:13:30,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:13:30,964 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:13:30,965 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:13:30,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:13:30,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:13:30,967 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:13:30,968 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:13:30,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:13:30,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:13:30,971 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:13:30,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:13:30,973 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:13:30,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:13:30,975 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:13:30,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:13:30,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:13:30,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:13:30,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:13:30,979 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f582462e-906e-4042-a9af-7307c2ceae29/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-30 00:13:31,003 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:13:31,004 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:13:31,005 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 00:13:31,006 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-30 00:13:31,007 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:13:31,007 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:13:31,008 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:13:31,008 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:13:31,009 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:13:31,009 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:13:31,010 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:13:31,010 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:13:31,011 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:13:31,011 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:13:31,012 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:13:31,012 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:13:31,012 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:13:31,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:13:31,013 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-30 00:13:31,013 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-30 00:13:31,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:13:31,014 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:13:31,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-30 00:13:31,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:13:31,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:13:31,015 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:13:31,015 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-30 00:13:31,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:13:31,016 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:13:31,016 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_f582462e-906e-4042-a9af-7307c2ceae29/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f582462e-906e-4042-a9af-7307c2ceae29/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8372a31944d45846edae8fd3de2e59236f8e911 [2020-11-30 00:13:31,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:13:31,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:13:31,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:13:31,381 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:13:31,384 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:13:31,386 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f582462e-906e-4042-a9af-7307c2ceae29/bin/ukojak/../../sv-benchmarks/c/array-fpi/eqn5f.c [2020-11-30 00:13:31,498 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f582462e-906e-4042-a9af-7307c2ceae29/bin/ukojak/data/db446e509/0f86e1a80b8c453785b1d15286e09f8d/FLAG707a86be2 [2020-11-30 00:13:32,207 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:13:32,208 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f582462e-906e-4042-a9af-7307c2ceae29/sv-benchmarks/c/array-fpi/eqn5f.c [2020-11-30 00:13:32,220 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f582462e-906e-4042-a9af-7307c2ceae29/bin/ukojak/data/db446e509/0f86e1a80b8c453785b1d15286e09f8d/FLAG707a86be2 [2020-11-30 00:13:32,558 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f582462e-906e-4042-a9af-7307c2ceae29/bin/ukojak/data/db446e509/0f86e1a80b8c453785b1d15286e09f8d [2020-11-30 00:13:32,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:13:32,563 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:13:32,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:13:32,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:13:32,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:13:32,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:13:32" (1/1) ... [2020-11-30 00:13:32,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35df7bd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:13:32, skipping insertion in model container [2020-11-30 00:13:32,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:13:32" (1/1) ... [2020-11-30 00:13:32,583 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:13:32,602 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:13:32,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:13:32,844 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:13:32,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:13:32,889 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:13:32,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:13:32 WrapperNode [2020-11-30 00:13:32,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:13:32,892 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:13:32,892 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:13:32,892 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:13:32,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:13:32" (1/1) ... [2020-11-30 00:13:32,912 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:13:32" (1/1) ... [2020-11-30 00:13:32,938 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:13:32,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:13:32,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:13:32,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:13:32,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:13:32" (1/1) ... [2020-11-30 00:13:32,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:13:32" (1/1) ... [2020-11-30 00:13:32,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:13:32" (1/1) ... [2020-11-30 00:13:32,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:13:32" (1/1) ... [2020-11-30 00:13:32,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:13:32" (1/1) ... [2020-11-30 00:13:32,969 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:13:32" (1/1) ... [2020-11-30 00:13:32,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:13:32" (1/1) ... [2020-11-30 00:13:32,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:13:32,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:13:32,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:13:32,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:13:32,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:13:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f582462e-906e-4042-a9af-7307c2ceae29/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 [2020-11-30 00:13:33,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:13:33,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:13:33,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:13:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-30 00:13:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:13:33,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:13:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 00:13:33,701 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:13:33,702 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-11-30 00:13:33,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:13:33 BoogieIcfgContainer [2020-11-30 00:13:33,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:13:33,705 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-30 00:13:33,706 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-30 00:13:33,718 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-30 00:13:33,718 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:13:33" (1/1) ... [2020-11-30 00:13:33,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:33,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:13:33,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2020-11-30 00:13:33,776 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2020-11-30 00:13:33,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 00:13:33,779 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:13:33,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:33,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 00:13:33,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:34,087 INFO L350 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2020-11-30 00:13:34,088 INFO L384 Elim1Store]: Elim1 did not use preprocessing 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 27 treesize of output 15 [2020-11-30 00:13:34,089 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:13:34,097 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:13:34,106 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-11-30 00:13:34,106 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:27, output treesize:15 [2020-11-30 00:13:34,232 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:13:34,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:13:34,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:13:34,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 15 states and 27 transitions. [2020-11-30 00:13:34,428 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 27 transitions. [2020-11-30 00:13:34,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 00:13:34,429 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:13:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:34,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:13:34,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:34,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:13:34,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:13:34,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 17 states and 36 transitions. [2020-11-30 00:13:34,920 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 36 transitions. [2020-11-30 00:13:34,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 00:13:34,929 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:13:35,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:35,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:13:35,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:35,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:13:35,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:13:35,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 20 states and 48 transitions. [2020-11-30 00:13:35,637 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 48 transitions. [2020-11-30 00:13:35,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 00:13:35,638 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:13:35,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:35,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 20 conjunts are in the unsatisfiable core [2020-11-30 00:13:35,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:35,790 INFO L384 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 [2020-11-30 00:13:35,794 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:13:35,802 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:13:35,810 INFO L384 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 0 case distinctions, treesize of input 27 treesize of output 15 [2020-11-30 00:13:35,810 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-30 00:13:35,821 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:13:35,821 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-30 00:13:35,822 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:19 [2020-11-30 00:13:35,933 INFO L350 Elim1Store]: treesize reduction 54, result has 46.0 percent of original size [2020-11-30 00:13:35,933 INFO L384 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 [2020-11-30 00:13:35,936 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:13:35,977 INFO L625 ElimStorePlain]: treesize reduction 27, result has 64.5 percent of original size [2020-11-30 00:13:35,979 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:13:35,981 INFO L545 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. [2020-11-30 00:13:35,982 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:45, output treesize:49 [2020-11-30 00:13:35,985 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:13:36,060 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:13:36,215 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 1] term [2020-11-30 00:13:36,220 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:13:36,268 INFO L441 ElimStorePlain]: Different costs {12=[|v_#memory_int_31|], 20=[v_prenex_2]} [2020-11-30 00:13:36,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:36,303 INFO L350 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2020-11-30 00:13:36,304 INFO L384 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 46 treesize of output 43 [2020-11-30 00:13:36,305 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:13:36,382 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:13:36,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:36,434 INFO L350 Elim1Store]: treesize reduction 17, result has 60.5 percent of original size [2020-11-30 00:13:36,435 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 85 [2020-11-30 00:13:36,437 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-30 00:13:36,538 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2020-11-30 00:13:36,539 INFO L625 ElimStorePlain]: treesize reduction 53, result has 71.2 percent of original size [2020-11-30 00:13:36,550 INFO L545 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 5 dim-0 vars, and 2 xjuncts. [2020-11-30 00:13:36,551 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 7 variables, input treesize:115, output treesize:131 [2020-11-30 00:13:36,913 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-11-30 00:13:36,914 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:13:36,927 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:13:36,956 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:13:37,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:13:38,362 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2020-11-30 00:13:39,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:13:39,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 18 states and 35 transitions. [2020-11-30 00:13:39,054 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 35 transitions. [2020-11-30 00:13:39,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 00:13:39,055 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:13:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:39,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 00:13:39,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:39,189 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:13:39,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:13:39,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 22 states and 42 transitions. [2020-11-30 00:13:39,914 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 42 transitions. [2020-11-30 00:13:39,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 00:13:39,915 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:13:39,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:39,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 00:13:39,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:40,213 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:13:40,861 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2020-11-30 00:13:41,095 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2020-11-30 00:13:42,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:13:42,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 25 states and 51 transitions. [2020-11-30 00:13:42,441 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 51 transitions. [2020-11-30 00:13:42,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 00:13:42,442 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:13:42,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:42,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 20 conjunts are in the unsatisfiable core [2020-11-30 00:13:42,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:42,572 INFO L384 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 [2020-11-30 00:13:42,574 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:13:42,583 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:13:42,594 INFO L384 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 0 case distinctions, treesize of input 27 treesize of output 15 [2020-11-30 00:13:42,595 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-30 00:13:42,604 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:13:42,605 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-30 00:13:42,605 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:19 [2020-11-30 00:13:42,687 INFO L350 Elim1Store]: treesize reduction 54, result has 46.0 percent of original size [2020-11-30 00:13:42,687 INFO L384 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 [2020-11-30 00:13:42,689 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:13:42,733 INFO L625 ElimStorePlain]: treesize reduction 24, result has 67.1 percent of original size [2020-11-30 00:13:42,735 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:13:42,736 INFO L545 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. [2020-11-30 00:13:42,737 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:45, output treesize:49 [2020-11-30 00:13:42,737 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:13:42,857 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:13:42,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:42,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:42,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:42,987 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:13:42,988 INFO L384 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 49 treesize of output 143 [2020-11-30 00:13:42,991 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 1] term [2020-11-30 00:13:42,991 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 00:13:42,992 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-11-30 00:13:42,992 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:13:42,993 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 1] term [2020-11-30 00:13:42,993 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:13:42,997 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:13:43,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:43,274 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2020-11-30 00:13:43,275 INFO L350 Elim1Store]: treesize reduction 17, result has 92.5 percent of original size [2020-11-30 00:13:43,276 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 63 treesize of output 252 [2020-11-30 00:13:43,278 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 2, 1] term [2020-11-30 00:13:43,278 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-30 00:13:43,279 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 1] term [2020-11-30 00:13:43,280 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-30 00:13:43,281 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 1] term [2020-11-30 00:13:43,281 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 00:13:43,283 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-11-30 00:13:43,283 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:13:43,284 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 1] term [2020-11-30 00:13:43,284 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:13:43,291 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-30 00:13:43,719 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 45 [2020-11-30 00:13:43,720 INFO L625 ElimStorePlain]: treesize reduction 805, result has 14.5 percent of original size [2020-11-30 00:13:43,721 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:13:43,730 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2020-11-30 00:13:43,730 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:121, output treesize:101 [2020-11-30 00:13:43,731 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:13:44,029 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:13:44,392 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-11-30 00:13:44,396 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-30 00:13:44,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:44,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:44,454 INFO L384 Elim1Store]: Elim1 did not use preprocessing 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 46 treesize of output 43 [2020-11-30 00:13:44,454 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:13:44,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:44,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:44,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:44,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:44,516 INFO L384 Elim1Store]: Elim1 did not use preprocessing 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 52 [2020-11-30 00:13:44,517 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-30 00:13:44,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:44,565 INFO L350 Elim1Store]: treesize reduction 17, result has 60.5 percent of original size [2020-11-30 00:13:44,566 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 85 [2020-11-30 00:13:44,567 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-11-30 00:13:44,789 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2020-11-30 00:13:44,791 INFO L625 ElimStorePlain]: treesize reduction 51, result has 77.1 percent of original size [2020-11-30 00:13:44,792 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 3 xjuncts. [2020-11-30 00:13:44,792 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:176, output treesize:172 [2020-11-30 00:13:45,174 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-30 00:13:45,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:45,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:45,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:45,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:45,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:45,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:45,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:45,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:45,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:45,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:45,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:45,426 INFO L244 Elim1Store]: Index analysis took 183 ms [2020-11-30 00:13:45,436 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:13:45,437 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 107 [2020-11-30 00:13:45,439 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:13:45,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:45,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:45,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:45,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:45,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:45,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:45,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:45,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:45,588 INFO L244 Elim1Store]: Index analysis took 134 ms [2020-11-30 00:13:45,602 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:13:45,603 INFO L384 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 73 treesize of output 98 [2020-11-30 00:13:45,604 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-30 00:13:45,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:45,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:45,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:45,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:45,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:45,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:13:45,762 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2020-11-30 00:13:45,763 INFO L350 Elim1Store]: treesize reduction 17, result has 81.7 percent of original size [2020-11-30 00:13:45,763 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 99 treesize of output 177 [2020-11-30 00:13:45,766 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-11-30 00:13:46,110 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 66 [2020-11-30 00:13:46,111 INFO L625 ElimStorePlain]: treesize reduction 238, result has 51.1 percent of original size [2020-11-30 00:13:46,125 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 10 dim-0 vars, and 3 xjuncts. [2020-11-30 00:13:46,126 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:273, output treesize:249 [2020-11-30 00:15:39,146 WARN L193 SmtUtils]: Spent 26.55 s on a formula simplification that was a NOOP. DAG size: 100 [2020-11-30 00:16:20,765 WARN L193 SmtUtils]: Spent 28.33 s on a formula simplification that was a NOOP. DAG size: 103 [2020-11-30 00:16:20,780 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2020-11-30 00:16:20,781 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-30 00:16:20,798 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:16:20,842 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:16:20,874 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 00:16:21,127 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:16:21,693 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-11-30 00:16:22,226 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-11-30 00:16:24,796 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 53 [2020-11-30 00:16:25,499 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-11-30 00:16:32,092 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 73 [2020-11-30 00:16:32,783 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-11-30 00:16:33,589 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-11-30 00:20:50,402 WARN L193 SmtUtils]: Spent 1.30 m on a formula simplification that was a NOOP. DAG size: 101 [2020-11-30 00:22:33,061 WARN L193 SmtUtils]: Spent 1.00 m on a formula simplification that was a NOOP. DAG size: 104 [2020-11-30 00:22:33,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:22:33,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 23 states and 36 transitions. [2020-11-30 00:22:33,066 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 36 transitions. [2020-11-30 00:22:33,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 00:22:33,067 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:22:33,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:22:33,177 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:22:33,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:22:33,251 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:22:33,299 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 8 iterations. [2020-11-30 00:22:33,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 30.11 12:22:33 ImpRootNode [2020-11-30 00:22:33,356 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-30 00:22:33,357 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:22:33,357 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:22:33,358 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:22:33,358 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:13:33" (3/4) ... [2020-11-30 00:22:33,361 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 00:22:33,447 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f582462e-906e-4042-a9af-7307c2ceae29/bin/ukojak/witness.graphml [2020-11-30 00:22:33,447 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:22:33,449 INFO L168 Benchmark]: Toolchain (without parser) took 540885.09 ms. Allocated memory was 104.9 MB in the beginning and 247.5 MB in the end (delta: 142.6 MB). Free memory was 76.2 MB in the beginning and 126.5 MB in the end (delta: -50.3 MB). Peak memory consumption was 91.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:22:33,450 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 104.9 MB. Free memory was 65.2 MB in the beginning and 65.1 MB in the end (delta: 77.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:22:33,451 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.77 ms. Allocated memory was 104.9 MB in the beginning and 140.5 MB in the end (delta: 35.7 MB). Free memory was 75.9 MB in the beginning and 116.8 MB in the end (delta: -40.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:22:33,452 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.85 ms. Allocated memory is still 140.5 MB. Free memory was 116.8 MB in the beginning and 115.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:22:33,452 INFO L168 Benchmark]: Boogie Preprocessor took 34.40 ms. Allocated memory is still 140.5 MB. Free memory was 115.3 MB in the beginning and 114.3 MB in the end (delta: 974.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:22:33,453 INFO L168 Benchmark]: RCFGBuilder took 729.42 ms. Allocated memory is still 140.5 MB. Free memory was 114.3 MB in the beginning and 91.6 MB in the end (delta: 22.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:22:33,454 INFO L168 Benchmark]: CodeCheck took 539650.80 ms. Allocated memory was 140.5 MB in the beginning and 247.5 MB in the end (delta: 107.0 MB). Free memory was 91.6 MB in the beginning and 129.6 MB in the end (delta: -38.0 MB). Peak memory consumption was 71.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:22:33,455 INFO L168 Benchmark]: Witness Printer took 90.36 ms. Allocated memory is still 247.5 MB. Free memory was 129.6 MB in the beginning and 126.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:22:33,460 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: 539.5s, OverallIterations: 8, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 512 SDtfs, 264 SDslu, 128 SDs, 0 SdLazy, 4718 SolverSat, 1494 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 722 GetRequests, 606 SyntacticMatches, 14 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4955 ImplicationChecksByTransitivity, 533.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 160.7s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 56 ConstructedInterpolants, 10 QuantifiedInterpolants, 13840 SizeOfPredicates, 37 NumberOfNonLiveVariables, 614 ConjunctsInSsa, 67 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 6/16 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] = 1 [L32] b[0] = 1 [L33] i=1 VAL [N=2] [L33] COND TRUE i