./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/brs1f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_580e4bd3-d7b4-4f0f-85f6-8ef43443f3fb/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_580e4bd3-d7b4-4f0f-85f6-8ef43443f3fb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_580e4bd3-d7b4-4f0f-85f6-8ef43443f3fb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_580e4bd3-d7b4-4f0f-85f6-8ef43443f3fb/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/brs1f.c -s /tmp/vcloud-vcloud-master/worker/run_dir_580e4bd3-d7b4-4f0f-85f6-8ef43443f3fb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_580e4bd3-d7b4-4f0f-85f6-8ef43443f3fb/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 80fd0a896763b908f9317a32a4ce4a8bee26f3fe ................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-cad4683 [2019-11-15 20:38:39,758 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:38:39,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:38:39,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:38:39,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:38:39,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:38:39,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:38:39,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:38:39,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:38:39,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:38:39,801 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:38:39,802 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:38:39,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:38:39,803 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:38:39,804 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:38:39,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:38:39,806 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:38:39,807 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:38:39,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:38:39,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:38:39,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:38:39,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:38:39,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:38:39,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:38:39,818 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:38:39,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:38:39,819 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:38:39,820 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:38:39,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:38:39,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:38:39,821 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:38:39,822 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:38:39,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:38:39,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:38:39,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:38:39,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:38:39,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:38:39,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:38:39,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:38:39,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:38:39,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:38:39,829 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_580e4bd3-d7b4-4f0f-85f6-8ef43443f3fb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 20:38:39,844 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:38:39,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:38:39,846 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:38:39,846 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:38:39,847 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:38:39,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:38:39,847 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:38:39,848 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:38:39,848 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:38:39,848 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:38:39,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:38:39,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:38:39,849 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:38:39,849 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:38:39,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:38:39,850 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:38:39,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:38:39,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:38:39,851 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:38:39,851 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:38:39,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:38:39,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:38:39,852 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:38:39,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:38:39,853 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:38:39,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:38:39,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 20:38:39,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:38:39,862 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_580e4bd3-d7b4-4f0f-85f6-8ef43443f3fb/bin/uautomizer 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(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer 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 -> 80fd0a896763b908f9317a32a4ce4a8bee26f3fe [2019-11-15 20:38:39,900 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:38:39,912 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:38:39,916 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:38:39,917 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:38:39,918 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:38:39,919 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_580e4bd3-d7b4-4f0f-85f6-8ef43443f3fb/bin/uautomizer/../../sv-benchmarks/c/array-fpi/brs1f.c [2019-11-15 20:38:39,984 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_580e4bd3-d7b4-4f0f-85f6-8ef43443f3fb/bin/uautomizer/data/aad298cf5/ff325ee6dbfe49d68ebe54727fb0e283/FLAG73fb4824a [2019-11-15 20:38:40,446 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:38:40,447 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_580e4bd3-d7b4-4f0f-85f6-8ef43443f3fb/sv-benchmarks/c/array-fpi/brs1f.c [2019-11-15 20:38:40,457 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_580e4bd3-d7b4-4f0f-85f6-8ef43443f3fb/bin/uautomizer/data/aad298cf5/ff325ee6dbfe49d68ebe54727fb0e283/FLAG73fb4824a [2019-11-15 20:38:40,814 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_580e4bd3-d7b4-4f0f-85f6-8ef43443f3fb/bin/uautomizer/data/aad298cf5/ff325ee6dbfe49d68ebe54727fb0e283 [2019-11-15 20:38:40,817 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:38:40,818 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:38:40,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:38:40,819 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:38:40,823 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:38:40,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:38:40" (1/1) ... [2019-11-15 20:38:40,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b43a16a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:38:40, skipping insertion in model container [2019-11-15 20:38:40,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:38:40" (1/1) ... [2019-11-15 20:38:40,835 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:38:40,854 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:38:41,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:38:41,222 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:38:41,243 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:38:41,261 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:38:41,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:38:41 WrapperNode [2019-11-15 20:38:41,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:38:41,263 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:38:41,263 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:38:41,263 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:38:41,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:38:41" (1/1) ... [2019-11-15 20:38:41,284 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:38:41" (1/1) ... [2019-11-15 20:38:41,309 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:38:41,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:38:41,310 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:38:41,310 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:38:41,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:38:41" (1/1) ... [2019-11-15 20:38:41,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:38:41" (1/1) ... [2019-11-15 20:38:41,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:38:41" (1/1) ... [2019-11-15 20:38:41,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:38:41" (1/1) ... [2019-11-15 20:38:41,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:38:41" (1/1) ... [2019-11-15 20:38:41,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:38:41" (1/1) ... [2019-11-15 20:38:41,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:38:41" (1/1) ... [2019-11-15 20:38:41,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:38:41,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:38:41,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:38:41,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:38:41,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:38:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_580e4bd3-d7b4-4f0f-85f6-8ef43443f3fb/bin/uautomizer/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 [2019-11-15 20:38:41,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 20:38:41,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 20:38:41,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-15 20:38:41,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:38:41,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:38:41,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 20:38:41,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 20:38:41,748 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:38:41,748 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-15 20:38:41,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:38:41 BoogieIcfgContainer [2019-11-15 20:38:41,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:38:41,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:38:41,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:38:41,754 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:38:41,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:38:40" (1/3) ... [2019-11-15 20:38:41,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a1257a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:38:41, skipping insertion in model container [2019-11-15 20:38:41,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:38:41" (2/3) ... [2019-11-15 20:38:41,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a1257a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:38:41, skipping insertion in model container [2019-11-15 20:38:41,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:38:41" (3/3) ... [2019-11-15 20:38:41,757 INFO L109 eAbstractionObserver]: Analyzing ICFG brs1f.c [2019-11-15 20:38:41,768 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:38:41,775 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 20:38:41,809 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 20:38:41,834 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:38:41,834 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:38:41,834 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:38:41,835 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:38:41,835 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:38:41,835 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:38:41,835 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:38:41,835 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:38:41,852 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-11-15 20:38:41,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-15 20:38:41,859 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:38:41,860 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:38:41,862 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:38:41,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:38:41,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1623807605, now seen corresponding path program 1 times [2019-11-15 20:38:41,877 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:38:41,877 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317535871] [2019-11-15 20:38:41,877 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:38:41,878 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:38:41,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:38:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:38:42,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:38:42,029 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317535871] [2019-11-15 20:38:42,030 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:38:42,030 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 20:38:42,030 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399563320] [2019-11-15 20:38:42,035 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 20:38:42,035 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:38:42,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 20:38:42,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:38:42,056 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2019-11-15 20:38:42,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:38:42,076 INFO L93 Difference]: Finished difference Result 33 states and 46 transitions. [2019-11-15 20:38:42,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 20:38:42,078 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-11-15 20:38:42,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:38:42,087 INFO L225 Difference]: With dead ends: 33 [2019-11-15 20:38:42,087 INFO L226 Difference]: Without dead ends: 14 [2019-11-15 20:38:42,091 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:38:42,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-15 20:38:42,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-11-15 20:38:42,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-15 20:38:42,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-11-15 20:38:42,125 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 9 [2019-11-15 20:38:42,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:38:42,126 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-11-15 20:38:42,126 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 20:38:42,126 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-11-15 20:38:42,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-15 20:38:42,127 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:38:42,127 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:38:42,127 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:38:42,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:38:42,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1308886944, now seen corresponding path program 1 times [2019-11-15 20:38:42,128 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:38:42,128 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402108734] [2019-11-15 20:38:42,129 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:38:42,129 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:38:42,129 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:38:42,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:38:42,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:38:42,211 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402108734] [2019-11-15 20:38:42,211 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:38:42,211 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 20:38:42,211 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731820079] [2019-11-15 20:38:42,213 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 20:38:42,213 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:38:42,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 20:38:42,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 20:38:42,214 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 3 states. [2019-11-15 20:38:42,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:38:42,283 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2019-11-15 20:38:42,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 20:38:42,284 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-15 20:38:42,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:38:42,285 INFO L225 Difference]: With dead ends: 25 [2019-11-15 20:38:42,285 INFO L226 Difference]: Without dead ends: 17 [2019-11-15 20:38:42,286 INFO L600 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 [2019-11-15 20:38:42,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-15 20:38:42,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2019-11-15 20:38:42,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-15 20:38:42,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-11-15 20:38:42,291 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 9 [2019-11-15 20:38:42,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:38:42,291 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-11-15 20:38:42,291 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 20:38:42,291 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-11-15 20:38:42,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 20:38:42,292 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:38:42,292 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:38:42,292 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:38:42,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:38:42,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1738269227, now seen corresponding path program 1 times [2019-11-15 20:38:42,294 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:38:42,294 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218804185] [2019-11-15 20:38:42,294 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:38:42,295 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:38:42,295 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:38:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:38:42,398 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-15 20:38:42,399 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218804185] [2019-11-15 20:38:42,399 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:38:42,399 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 20:38:42,400 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219302614] [2019-11-15 20:38:42,400 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 20:38:42,401 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:38:42,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 20:38:42,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 20:38:42,401 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 4 states. [2019-11-15 20:38:42,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:38:42,481 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2019-11-15 20:38:42,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 20:38:42,482 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-11-15 20:38:42,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:38:42,483 INFO L225 Difference]: With dead ends: 27 [2019-11-15 20:38:42,483 INFO L226 Difference]: Without dead ends: 20 [2019-11-15 20:38:42,484 INFO L600 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 [2019-11-15 20:38:42,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-15 20:38:42,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2019-11-15 20:38:42,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-15 20:38:42,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2019-11-15 20:38:42,489 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2019-11-15 20:38:42,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:38:42,489 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2019-11-15 20:38:42,489 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 20:38:42,490 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2019-11-15 20:38:42,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-15 20:38:42,490 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:38:42,491 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:38:42,491 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:38:42,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:38:42,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1896871737, now seen corresponding path program 1 times [2019-11-15 20:38:42,492 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:38:42,492 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593202531] [2019-11-15 20:38:42,492 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:38:42,492 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:38:42,493 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:38:42,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:38:42,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:38:42,575 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:38:42,576 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 20:38:42,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 08:38:42 BoogieIcfgContainer [2019-11-15 20:38:42,612 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 20:38:42,613 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:38:42,613 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:38:42,613 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:38:42,614 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:38:41" (3/4) ... [2019-11-15 20:38:42,616 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-15 20:38:42,675 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_580e4bd3-d7b4-4f0f-85f6-8ef43443f3fb/bin/uautomizer/witness.graphml [2019-11-15 20:38:42,676 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:38:42,678 INFO L168 Benchmark]: Toolchain (without parser) took 1859.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.9 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -144.4 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2019-11-15 20:38:42,679 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:38:42,680 INFO L168 Benchmark]: CACSL2BoogieTranslator took 443.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.9 MB). Free memory was 944.8 MB in the beginning and 1.2 GB in the end (delta: -217.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-15 20:38:42,680 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:38:42,681 INFO L168 Benchmark]: Boogie Preprocessor took 31.95 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:38:42,682 INFO L168 Benchmark]: RCFGBuilder took 407.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. [2019-11-15 20:38:42,682 INFO L168 Benchmark]: TraceAbstraction took 861.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 41.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 11.5 GB. [2019-11-15 20:38:42,683 INFO L168 Benchmark]: Witness Printer took 62.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-15 20:38:42,687 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 443.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.9 MB). Free memory was 944.8 MB in the beginning and 1.2 GB in the end (delta: -217.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.95 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 407.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 861.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 41.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 11.5 GB. * Witness Printer took 62.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int N; VAL [N=0] [L18] N = __VERIFIER_nondet_int() [L19] COND FALSE !(N <= 0) [L22] int i; [L23] long long sum[1]; [L24] int *a = malloc(sizeof(int)*N); [L26] i=0 VAL [N=1] [L26] COND TRUE i