./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ssinaf.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd80b5f2-5a53-4f4d-a5e7-0448f9718d90/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd80b5f2-5a53-4f4d-a5e7-0448f9718d90/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd80b5f2-5a53-4f4d-a5e7-0448f9718d90/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd80b5f2-5a53-4f4d-a5e7-0448f9718d90/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/ssinaf.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd80b5f2-5a53-4f4d-a5e7-0448f9718d90/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd80b5f2-5a53-4f4d-a5e7-0448f9718d90/bin/utaipan-WLngWcDbfI --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4618b75d413d783d7edda184b58fd1988f40d7dc ............................................................................................................................................................................................................................................................................................................................................................................................ 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 0.2.0-7b2dab5 [2021-10-11 02:28:46,747 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:28:46,750 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:28:46,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:28:46,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:28:46,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:28:46,808 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:28:46,811 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:28:46,813 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:28:46,814 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:28:46,815 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:28:46,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:28:46,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:28:46,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:28:46,820 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:28:46,822 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:28:46,823 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:28:46,824 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:28:46,826 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:28:46,829 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:28:46,831 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:28:46,836 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:28:46,837 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:28:46,839 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:28:46,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:28:46,849 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:28:46,850 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:28:46,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:28:46,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:28:46,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:28:46,855 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:28:46,856 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:28:46,858 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:28:46,859 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:28:46,860 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:28:46,861 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:28:46,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:28:46,862 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:28:46,862 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:28:46,863 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:28:46,864 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:28:46,867 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd80b5f2-5a53-4f4d-a5e7-0448f9718d90/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:28:46,908 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:28:46,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:28:46,909 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:28:46,910 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:28:46,910 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:28:46,910 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:28:46,910 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:28:46,911 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:28:46,911 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:28:46,911 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:28:46,912 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:28:46,912 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:28:46,913 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:28:46,913 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:28:46,913 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:28:46,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:28:46,914 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:28:46,914 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:28:46,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:28:46,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:28:46,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:28:46,915 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:28:46,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:28:46,916 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:28:46,916 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:28:46,916 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:28:46,917 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:28:46,917 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:28:46,917 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:28:46,919 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:28:46,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:28:46,919 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:28:46,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:28:46,920 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:28:46,920 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:28:46,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:28:46,921 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:28:46,921 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:28:46,921 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:28:46,921 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd80b5f2-5a53-4f4d-a5e7-0448f9718d90/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd80b5f2-5a53-4f4d-a5e7-0448f9718d90/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4618b75d413d783d7edda184b58fd1988f40d7dc [2021-10-11 02:28:47,182 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:28:47,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:28:47,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:28:47,214 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:28:47,215 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:28:47,216 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd80b5f2-5a53-4f4d-a5e7-0448f9718d90/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/array-fpi/ssinaf.c [2021-10-11 02:28:47,290 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd80b5f2-5a53-4f4d-a5e7-0448f9718d90/bin/utaipan-WLngWcDbfI/data/ec92e0d6e/9cf3971eb69a421e99e93ae765662c84/FLAG589ae5f89 [2021-10-11 02:28:47,824 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:28:47,825 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd80b5f2-5a53-4f4d-a5e7-0448f9718d90/sv-benchmarks/c/array-fpi/ssinaf.c [2021-10-11 02:28:47,839 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd80b5f2-5a53-4f4d-a5e7-0448f9718d90/bin/utaipan-WLngWcDbfI/data/ec92e0d6e/9cf3971eb69a421e99e93ae765662c84/FLAG589ae5f89 [2021-10-11 02:28:48,189 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd80b5f2-5a53-4f4d-a5e7-0448f9718d90/bin/utaipan-WLngWcDbfI/data/ec92e0d6e/9cf3971eb69a421e99e93ae765662c84 [2021-10-11 02:28:48,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:28:48,195 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:28:48,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:28:48,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:28:48,203 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:28:48,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:28:48" (1/1) ... [2021-10-11 02:28:48,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bbd2718 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:48, skipping insertion in model container [2021-10-11 02:28:48,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:28:48" (1/1) ... [2021-10-11 02:28:48,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:28:48,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:28:48,458 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd80b5f2-5a53-4f4d-a5e7-0448f9718d90/sv-benchmarks/c/array-fpi/ssinaf.c[589,602] [2021-10-11 02:28:48,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:28:48,489 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:28:48,501 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd80b5f2-5a53-4f4d-a5e7-0448f9718d90/sv-benchmarks/c/array-fpi/ssinaf.c[589,602] [2021-10-11 02:28:48,516 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:28:48,539 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:28:48,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:48 WrapperNode [2021-10-11 02:28:48,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:28:48,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:28:48,541 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:28:48,541 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:28:48,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:48" (1/1) ... [2021-10-11 02:28:48,571 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:48" (1/1) ... [2021-10-11 02:28:48,595 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:28:48,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:28:48,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:28:48,598 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:28:48,606 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:48" (1/1) ... [2021-10-11 02:28:48,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:48" (1/1) ... [2021-10-11 02:28:48,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:48" (1/1) ... [2021-10-11 02:28:48,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:48" (1/1) ... [2021-10-11 02:28:48,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:48" (1/1) ... [2021-10-11 02:28:48,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:48" (1/1) ... [2021-10-11 02:28:48,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:48" (1/1) ... [2021-10-11 02:28:48,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:28:48,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:28:48,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:28:48,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:28:48,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:48" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd80b5f2-5a53-4f4d-a5e7-0448f9718d90/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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:2000 [2021-10-11 02:28:48,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:28:48,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:28:48,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:28:48,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-11 02:28:48,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:28:48,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:28:48,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 02:28:48,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:28:49,282 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:28:49,283 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-11 02:28:49,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:49 BoogieIcfgContainer [2021-10-11 02:28:49,285 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:28:49,287 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:28:49,287 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:28:49,290 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:28:49,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:28:48" (1/3) ... [2021-10-11 02:28:49,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6690bf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:28:49, skipping insertion in model container [2021-10-11 02:28:49,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:48" (2/3) ... [2021-10-11 02:28:49,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6690bf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:28:49, skipping insertion in model container [2021-10-11 02:28:49,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:49" (3/3) ... [2021-10-11 02:28:49,294 INFO L111 eAbstractionObserver]: Analyzing ICFG ssinaf.c [2021-10-11 02:28:49,313 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:28:49,317 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:28:49,328 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:28:49,356 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:28:49,356 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:28:49,357 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:28:49,357 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:28:49,357 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:28:49,357 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:28:49,357 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:28:49,357 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:28:49,367 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2021-10-11 02:28:49,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:28:49,371 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:49,372 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:49,372 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:28:49,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:49,376 INFO L82 PathProgramCache]: Analyzing trace with hash 926800726, now seen corresponding path program 1 times [2021-10-11 02:28:49,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:49,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289343006] [2021-10-11 02:28:49,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:49,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:49,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:49,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289343006] [2021-10-11 02:28:49,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:49,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:28:49,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972703874] [2021-10-11 02:28:49,597 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:28:49,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:49,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:28:49,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:28:49,617 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2021-10-11 02:28:49,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:49,684 INFO L93 Difference]: Finished difference Result 26 states and 39 transitions. [2021-10-11 02:28:49,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:28:49,686 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2021-10-11 02:28:49,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:49,697 INFO L225 Difference]: With dead ends: 26 [2021-10-11 02:28:49,698 INFO L226 Difference]: Without dead ends: 13 [2021-10-11 02:28:49,701 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:28:49,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-11 02:28:49,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-11 02:28:49,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-11 02:28:49,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2021-10-11 02:28:49,735 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 18 transitions. Word has length 10 [2021-10-11 02:28:49,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:49,735 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-10-11 02:28:49,736 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:28:49,736 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2021-10-11 02:28:49,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:28:49,736 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:49,736 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:49,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:28:49,737 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:28:49,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:49,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1672334969, now seen corresponding path program 1 times [2021-10-11 02:28:49,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:49,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363911495] [2021-10-11 02:28:49,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:49,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:49,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 02:28:49,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363911495] [2021-10-11 02:28:49,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:49,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:28:49,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503783102] [2021-10-11 02:28:49,872 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:28:49,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:49,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:28:49,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:28:49,874 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. Second operand 4 states. [2021-10-11 02:28:49,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:49,944 INFO L93 Difference]: Finished difference Result 30 states and 42 transitions. [2021-10-11 02:28:49,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:28:49,945 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2021-10-11 02:28:49,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:49,947 INFO L225 Difference]: With dead ends: 30 [2021-10-11 02:28:49,947 INFO L226 Difference]: Without dead ends: 22 [2021-10-11 02:28:49,949 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:28:49,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-10-11 02:28:49,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 17. [2021-10-11 02:28:49,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-10-11 02:28:49,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2021-10-11 02:28:49,966 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 22 transitions. Word has length 11 [2021-10-11 02:28:49,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:49,967 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 22 transitions. [2021-10-11 02:28:49,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:28:49,967 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2021-10-11 02:28:49,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-11 02:28:49,967 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:49,968 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:49,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:28:49,969 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:28:49,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:49,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1085276402, now seen corresponding path program 1 times [2021-10-11 02:28:49,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:49,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394538523] [2021-10-11 02:28:49,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:50,018 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:28:50,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1636005724] [2021-10-11 02:28:50,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd80b5f2-5a53-4f4d-a5e7-0448f9718d90/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:28:50,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:28:50,106 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:28:50,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:28:50,139 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:28:50,222 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:28:50,222 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:28:50,423 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-10-11 02:28:50,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:28:50 BoogieIcfgContainer [2021-10-11 02:28:50,467 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:28:50,468 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:28:50,468 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:28:50,468 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:28:50,469 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:49" (3/4) ... [2021-10-11 02:28:50,477 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:28:50,528 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd80b5f2-5a53-4f4d-a5e7-0448f9718d90/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:28:50,528 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:28:50,530 INFO L168 Benchmark]: Toolchain (without parser) took 2334.09 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 51.9 MB in the beginning and 52.3 MB in the end (delta: -404.0 kB). Peak memory consumption was 23.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:50,531 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 86.0 MB. Free memory was 56.2 MB in the beginning and 56.2 MB in the end (delta: 21.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:28:50,531 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.36 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 51.7 MB in the beginning and 82.5 MB in the end (delta: -30.8 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:50,532 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.96 ms. Allocated memory is still 107.0 MB. Free memory was 82.5 MB in the beginning and 81.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:28:50,533 INFO L168 Benchmark]: Boogie Preprocessor took 55.53 ms. Allocated memory is still 107.0 MB. Free memory was 80.7 MB in the beginning and 79.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:28:50,533 INFO L168 Benchmark]: RCFGBuilder took 632.12 ms. Allocated memory is still 107.0 MB. Free memory was 79.6 MB in the beginning and 76.1 MB in the end (delta: 3.5 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:50,534 INFO L168 Benchmark]: TraceAbstraction took 1180.44 ms. Allocated memory is still 107.0 MB. Free memory was 75.6 MB in the beginning and 55.3 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:50,535 INFO L168 Benchmark]: Witness Printer took 60.58 ms. Allocated memory is still 107.0 MB. Free memory was 55.3 MB in the beginning and 52.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:50,538 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 86.0 MB. Free memory was 56.2 MB in the beginning and 56.2 MB in the end (delta: 21.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 341.36 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 51.7 MB in the beginning and 82.5 MB in the end (delta: -30.8 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.96 ms. Allocated memory is still 107.0 MB. Free memory was 82.5 MB in the beginning and 81.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.53 ms. Allocated memory is still 107.0 MB. Free memory was 80.7 MB in the beginning and 79.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 632.12 ms. Allocated memory is still 107.0 MB. Free memory was 79.6 MB in the beginning and 76.1 MB in the end (delta: 3.5 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1180.44 ms. Allocated memory is still 107.0 MB. Free memory was 75.6 MB in the beginning and 55.3 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. * Witness Printer took 60.58 ms. Allocated memory is still 107.0 MB. Free memory was 55.3 MB in the beginning and 52.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_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 sum[1]; [L29] long long *a = malloc(sizeof(long long)*N); [L31] sum[0] = 0 [L32] i=0 VAL [N=1] [L32] COND TRUE i