./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 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c6b5778a-7d19-409b-80dc-52565bf52c13/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c6b5778a-7d19-409b-80dc-52565bf52c13/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c6b5778a-7d19-409b-80dc-52565bf52c13/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c6b5778a-7d19-409b-80dc-52565bf52c13/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/eqn5f.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c6b5778a-7d19-409b-80dc-52565bf52c13/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c6b5778a-7d19-409b-80dc-52565bf52c13/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 0.2.0-69874e2 [2020-12-01 16:57:26,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:57:26,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:57:26,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:57:26,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:57:26,676 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:57:26,679 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:57:26,687 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:57:26,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:57:26,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:57:26,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:57:26,694 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:57:26,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:57:26,695 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:57:26,697 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:57:26,698 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:57:26,699 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:57:26,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:57:26,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:57:26,705 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:57:26,707 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:57:26,709 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:57:26,710 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:57:26,711 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:57:26,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:57:26,720 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:57:26,721 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:57:26,722 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:57:26,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:57:26,724 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:57:26,724 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:57:26,725 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:57:26,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:57:26,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:57:26,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:57:26,729 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:57:26,730 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:57:26,730 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:57:26,730 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:57:26,731 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:57:26,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:57:26,737 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c6b5778a-7d19-409b-80dc-52565bf52c13/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 16:57:26,783 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:57:26,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:57:26,785 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:57:26,785 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:57:26,786 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:57:26,786 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:57:26,787 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:57:26,787 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:57:26,787 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:57:26,787 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:57:26,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:57:26,789 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:57:26,789 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:57:26,789 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:57:26,789 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:57:26,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:57:26,790 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:57:26,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:57:26,790 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:57:26,790 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:57:26,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:57:26,791 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:57:26,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:57:26,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:57:26,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:57:26,791 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:57:26,792 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:57:26,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:57:26,792 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:57:26,792 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_c6b5778a-7d19-409b-80dc-52565bf52c13/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c6b5778a-7d19-409b-80dc-52565bf52c13/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8372a31944d45846edae8fd3de2e59236f8e911 [2020-12-01 16:57:27,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:57:27,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:57:27,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:57:27,130 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:57:27,133 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:57:27,134 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c6b5778a-7d19-409b-80dc-52565bf52c13/bin/ukojak/../../sv-benchmarks/c/array-fpi/eqn5f.c [2020-12-01 16:57:27,215 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c6b5778a-7d19-409b-80dc-52565bf52c13/bin/ukojak/data/da744f196/8ec7d2d96a99414a86ec6ca6cf4de814/FLAG5d119cf6c [2020-12-01 16:57:27,772 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:57:27,773 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c6b5778a-7d19-409b-80dc-52565bf52c13/sv-benchmarks/c/array-fpi/eqn5f.c [2020-12-01 16:57:27,779 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c6b5778a-7d19-409b-80dc-52565bf52c13/bin/ukojak/data/da744f196/8ec7d2d96a99414a86ec6ca6cf4de814/FLAG5d119cf6c [2020-12-01 16:57:28,111 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c6b5778a-7d19-409b-80dc-52565bf52c13/bin/ukojak/data/da744f196/8ec7d2d96a99414a86ec6ca6cf4de814 [2020-12-01 16:57:28,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:57:28,115 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:57:28,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:57:28,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:57:28,121 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:57:28,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:57:28" (1/1) ... [2020-12-01 16:57:28,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f26348c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:57:28, skipping insertion in model container [2020-12-01 16:57:28,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:57:28" (1/1) ... [2020-12-01 16:57:28,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:57:28,152 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:57:28,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:57:28,387 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:57:28,416 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:57:28,432 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:57:28,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:57:28 WrapperNode [2020-12-01 16:57:28,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:57:28,434 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:57:28,434 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:57:28,434 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:57:28,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:57:28" (1/1) ... [2020-12-01 16:57:28,451 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:57:28" (1/1) ... [2020-12-01 16:57:28,471 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:57:28,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:57:28,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:57:28,472 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:57:28,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:57:28" (1/1) ... [2020-12-01 16:57:28,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:57:28" (1/1) ... [2020-12-01 16:57:28,482 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:57:28" (1/1) ... [2020-12-01 16:57:28,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:57:28" (1/1) ... [2020-12-01 16:57:28,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:57:28" (1/1) ... [2020-12-01 16:57:28,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:57:28" (1/1) ... [2020-12-01 16:57:28,494 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:57:28" (1/1) ... [2020-12-01 16:57:28,497 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:57:28,497 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:57:28,498 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:57:28,498 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:57:28,499 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:57:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6b5778a-7d19-409b-80dc-52565bf52c13/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 16:57:28,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:57:28,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:57:28,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 16:57:28,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 16:57:28,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:57:28,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:57:28,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 16:57:29,120 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:57:29,120 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-12-01 16:57:29,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:57:29 BoogieIcfgContainer [2020-12-01 16:57:29,123 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:57:29,124 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:57:29,124 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:57:29,154 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:57:29,154 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:57:29" (1/1) ... [2020-12-01 16:57:29,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:57:29,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:57:29,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2020-12-01 16:57:29,219 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2020-12-01 16:57:29,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:57:29,221 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:57:29,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:57:29,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-01 16:57:29,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:57:29,547 INFO L348 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2020-12-01 16:57:29,548 INFO L382 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 [2020-12-01 16:57:29,551 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 16:57:29,560 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 16:57:29,569 INFO L547 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. [2020-12-01 16:57:29,569 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:21 [2020-12-01 16:57:29,710 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 16:57:29,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:57:29,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 15 states and 28 transitions. [2020-12-01 16:57:29,825 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 28 transitions. [2020-12-01 16:57:29,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 16:57:29,838 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:57:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:57:29,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 16:57:29,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:57:29,961 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 16:57:30,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:57:30,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 16 states and 32 transitions. [2020-12-01 16:57:30,101 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 32 transitions. [2020-12-01 16:57:30,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 16:57:30,102 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:57:30,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:57:30,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 16:57:30,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:57:30,253 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 16:57:30,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:57:30,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 19 states and 44 transitions. [2020-12-01 16:57:30,728 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 44 transitions. [2020-12-01 16:57:30,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 16:57:30,729 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:57:30,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:57:30,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 24 conjunts are in the unsatisfiable core [2020-12-01 16:57:30,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:57:30,819 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 16:57:30,821 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 16:57:30,827 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 16:57:30,832 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 0 case distinctions, treesize of input 27 treesize of output 15 [2020-12-01 16:57:30,833 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-01 16:57:30,839 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 16:57:30,840 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 16:57:30,840 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:19 [2020-12-01 16:57:30,919 INFO L348 Elim1Store]: treesize reduction 54, result has 46.0 percent of original size [2020-12-01 16:57:30,920 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 16:57:30,924 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 16:57:30,952 INFO L625 ElimStorePlain]: treesize reduction 25, result has 65.3 percent of original size [2020-12-01 16:57:30,955 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:57:30,958 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 16:57:30,958 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:45, output treesize:47 [2020-12-01 16:57:30,960 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:57:31,024 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:57:31,140 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:57:31,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-01 16:57:31,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-01 16:57:31,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-01 16:57:31,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-01 16:57:31,228 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 16:57:31,229 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 16:57:31,233 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 16:57:31,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-01 16:57:31,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-01 16:57:31,315 INFO L348 Elim1Store]: treesize reduction 17, result has 83.7 percent of original size [2020-12-01 16:57:31,315 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 16:57:31,323 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-01 16:57:31,449 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 43 [2020-12-01 16:57:31,450 INFO L625 ElimStorePlain]: treesize reduction 240, result has 36.3 percent of original size [2020-12-01 16:57:31,466 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 16:57:31,467 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:145, output treesize:137 [2020-12-01 16:57:33,237 WARN L197 SmtUtils]: Spent 1.58 s on a formula simplification that was a NOOP. DAG size: 64 [2020-12-01 16:57:35,419 WARN L197 SmtUtils]: Spent 1.38 s on a formula simplification that was a NOOP. DAG size: 67 [2020-12-01 16:57:35,452 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-01 16:57:35,456 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:57:35,468 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 16:57:35,480 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 16:57:35,482 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 16:57:35,486 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 16:57:35,487 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 16:57:35,490 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-01 16:57:35,525 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 16:57:35,530 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 16:57:35,533 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 16:57:35,538 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 16:57:35,539 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-01 16:57:35,546 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-01 16:57:35,554 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 16:57:38,521 WARN L197 SmtUtils]: Spent 1.49 s on a formula simplification that was a NOOP. DAG size: 65 [2020-12-01 16:57:50,347 WARN L197 SmtUtils]: Spent 1.69 s on a formula simplification that was a NOOP. DAG size: 68 [2020-12-01 16:57:50,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:57:50,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 22 states and 56 transitions. [2020-12-01 16:57:50,350 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 56 transitions. [2020-12-01 16:57:50,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 16:57:50,351 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:57:50,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:57:50,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 16:57:50,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:57:50,465 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 16:57:51,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:57:51,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 26 states and 63 transitions. [2020-12-01 16:57:51,037 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 63 transitions. [2020-12-01 16:57:51,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 16:57:51,037 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:57:51,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:57:51,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 16:57:51,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:57:51,250 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 16:57:52,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:57:52,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 19 states and 28 transitions. [2020-12-01 16:57:52,898 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 28 transitions. [2020-12-01 16:57:52,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:57:52,899 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:57:52,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:57:52,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 16:57:52,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:57:52,959 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 16:57:53,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:57:53,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 20 states and 29 transitions. [2020-12-01 16:57:53,346 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 29 transitions. [2020-12-01 16:57:53,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 16:57:53,347 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:57:53,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:57:53,396 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:57:53,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:57:53,420 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:57:53,768 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 8 iterations. [2020-12-01 16:57:53,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:57:53 ImpRootNode [2020-12-01 16:57:53,819 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:57:53,821 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:57:53,821 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:57:53,821 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:57:53,822 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:57:29" (3/4) ... [2020-12-01 16:57:53,824 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 16:57:53,912 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c6b5778a-7d19-409b-80dc-52565bf52c13/bin/ukojak/witness.graphml [2020-12-01 16:57:53,913 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:57:53,914 INFO L168 Benchmark]: Toolchain (without parser) took 25798.40 ms. Allocated memory was 104.9 MB in the beginning and 157.3 MB in the end (delta: 52.4 MB). Free memory was 72.9 MB in the beginning and 56.1 MB in the end (delta: 16.9 MB). Peak memory consumption was 70.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:57:53,914 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 104.9 MB. Free memory was 80.1 MB in the beginning and 80.1 MB in the end (delta: 27.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:57:53,915 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.93 ms. Allocated memory is still 104.9 MB. Free memory was 72.8 MB in the beginning and 82.1 MB in the end (delta: -9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:57:53,915 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.15 ms. Allocated memory is still 104.9 MB. Free memory was 82.1 MB in the beginning and 80.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:57:53,916 INFO L168 Benchmark]: Boogie Preprocessor took 25.05 ms. Allocated memory is still 104.9 MB. Free memory was 80.6 MB in the beginning and 79.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:57:53,916 INFO L168 Benchmark]: RCFGBuilder took 625.35 ms. Allocated memory is still 104.9 MB. Free memory was 79.0 MB in the beginning and 57.0 MB in the end (delta: 22.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-12-01 16:57:53,917 INFO L168 Benchmark]: CodeCheck took 24695.59 ms. Allocated memory was 104.9 MB in the beginning and 157.3 MB in the end (delta: 52.4 MB). Free memory was 56.5 MB in the beginning and 58.3 MB in the end (delta: -1.8 MB). Peak memory consumption was 53.8 MB. Max. memory is 16.1 GB. [2020-12-01 16:57:53,917 INFO L168 Benchmark]: Witness Printer took 92.16 ms. Allocated memory is still 157.3 MB. Free memory was 58.3 MB in the beginning and 56.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:57:53,920 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: 24.5s, OverallIterations: 8, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 384 SDtfs, 104 SDslu, 0 SDs, 0 SdLazy, 4442 SolverSat, 1434 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 704 GetRequests, 602 SyntacticMatches, 10 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3658 ImplicationChecksByTransitivity, 21.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 56 ConstructedInterpolants, 4 QuantifiedInterpolants, 4718 SizeOfPredicates, 30 NumberOfNonLiveVariables, 612 ConjunctsInSsa, 65 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 6/13 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