./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/modsf.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_78ed3f35-36ad-4c3c-b42d-13eb4b3ba886/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_78ed3f35-36ad-4c3c-b42d-13eb4b3ba886/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_78ed3f35-36ad-4c3c-b42d-13eb4b3ba886/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_78ed3f35-36ad-4c3c-b42d-13eb4b3ba886/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/modsf.c -s /tmp/vcloud-vcloud-master/worker/run_dir_78ed3f35-36ad-4c3c-b42d-13eb4b3ba886/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_78ed3f35-36ad-4c3c-b42d-13eb4b3ba886/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 dfa35dbeaf9ec268436e425d7397d5a090cc0d47 .................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-678e011 [2019-11-20 10:23:22,797 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:23:22,799 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:23:22,809 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:23:22,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:23:22,810 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:23:22,811 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:23:22,813 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:23:22,815 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:23:22,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:23:22,816 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:23:22,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:23:22,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:23:22,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:23:22,820 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:23:22,821 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:23:22,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:23:22,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:23:22,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:23:22,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:23:22,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:23:22,828 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:23:22,829 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:23:22,830 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:23:22,832 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:23:22,832 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:23:22,833 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:23:22,833 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:23:22,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:23:22,835 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:23:22,835 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:23:22,835 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:23:22,836 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:23:22,837 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:23:22,838 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:23:22,838 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:23:22,838 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:23:22,838 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:23:22,839 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:23:22,839 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:23:22,840 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:23:22,841 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_78ed3f35-36ad-4c3c-b42d-13eb4b3ba886/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 10:23:22,852 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:23:22,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:23:22,854 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:23:22,854 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:23:22,854 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:23:22,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:23:22,854 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:23:22,854 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 10:23:22,855 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:23:22,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:23:22,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 10:23:22,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 10:23:22,855 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 10:23:22,855 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:23:22,856 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:23:22,856 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:23:22,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 10:23:22,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:23:22,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:23:22,857 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 10:23:22,857 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 10:23:22,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:23:22,857 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:23:22,857 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 10:23:22,857 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 10:23:22,858 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 10:23:22,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 10:23:22,858 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 10:23:22,858 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_78ed3f35-36ad-4c3c-b42d-13eb4b3ba886/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 -> dfa35dbeaf9ec268436e425d7397d5a090cc0d47 [2019-11-20 10:23:22,993 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:23:23,003 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:23:23,006 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:23:23,007 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:23:23,007 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:23:23,008 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_78ed3f35-36ad-4c3c-b42d-13eb4b3ba886/bin/uautomizer/../../sv-benchmarks/c/array-fpi/modsf.c [2019-11-20 10:23:23,062 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_78ed3f35-36ad-4c3c-b42d-13eb4b3ba886/bin/uautomizer/data/58ec17b53/ceb26f82b8b84895825fdca2242dae28/FLAG9decd374e [2019-11-20 10:23:23,430 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:23:23,431 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_78ed3f35-36ad-4c3c-b42d-13eb4b3ba886/sv-benchmarks/c/array-fpi/modsf.c [2019-11-20 10:23:23,437 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_78ed3f35-36ad-4c3c-b42d-13eb4b3ba886/bin/uautomizer/data/58ec17b53/ceb26f82b8b84895825fdca2242dae28/FLAG9decd374e [2019-11-20 10:23:23,452 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_78ed3f35-36ad-4c3c-b42d-13eb4b3ba886/bin/uautomizer/data/58ec17b53/ceb26f82b8b84895825fdca2242dae28 [2019-11-20 10:23:23,455 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:23:23,457 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:23:23,459 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:23:23,460 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:23:23,463 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:23:23,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:23:23" (1/1) ... [2019-11-20 10:23:23,466 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28ac9bbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:23, skipping insertion in model container [2019-11-20 10:23:23,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:23:23" (1/1) ... [2019-11-20 10:23:23,474 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:23:23,493 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:23:23,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:23:23,715 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:23:23,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:23:23,747 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:23:23,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:23 WrapperNode [2019-11-20 10:23:23,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:23:23,748 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:23:23,748 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:23:23,748 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:23:23,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:23" (1/1) ... [2019-11-20 10:23:23,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:23" (1/1) ... [2019-11-20 10:23:23,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:23:23,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:23:23,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:23:23,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:23:23,793 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:23" (1/1) ... [2019-11-20 10:23:23,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:23" (1/1) ... [2019-11-20 10:23:23,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:23" (1/1) ... [2019-11-20 10:23:23,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:23" (1/1) ... [2019-11-20 10:23:23,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:23" (1/1) ... [2019-11-20 10:23:23,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:23" (1/1) ... [2019-11-20 10:23:23,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:23" (1/1) ... [2019-11-20 10:23:23,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:23:23,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:23:23,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:23:23,811 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:23:23,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78ed3f35-36ad-4c3c-b42d-13eb4b3ba886/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 [2019-11-20 10:23:23,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 10:23:23,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 10:23:23,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 10:23:23,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:23:23,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:23:23,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 10:23:23,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 10:23:24,265 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:23:24,265 INFO L285 CfgBuilder]: Removed 11 assume(true) statements. [2019-11-20 10:23:24,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:23:24 BoogieIcfgContainer [2019-11-20 10:23:24,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:23:24,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 10:23:24,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 10:23:24,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 10:23:24,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:23:23" (1/3) ... [2019-11-20 10:23:24,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@155792be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:23:24, skipping insertion in model container [2019-11-20 10:23:24,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:23" (2/3) ... [2019-11-20 10:23:24,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@155792be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:23:24, skipping insertion in model container [2019-11-20 10:23:24,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:23:24" (3/3) ... [2019-11-20 10:23:24,273 INFO L109 eAbstractionObserver]: Analyzing ICFG modsf.c [2019-11-20 10:23:24,283 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 10:23:24,292 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 10:23:24,301 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 10:23:24,320 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 10:23:24,320 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 10:23:24,320 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 10:23:24,320 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:23:24,321 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:23:24,321 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 10:23:24,321 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:23:24,321 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 10:23:24,335 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-11-20 10:23:24,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-20 10:23:24,341 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:23:24,342 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:23:24,342 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:23:24,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:23:24,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1543917039, now seen corresponding path program 1 times [2019-11-20 10:23:24,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:23:24,356 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900672811] [2019-11-20 10:23:24,356 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:23:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:23:24,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:23:24,457 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900672811] [2019-11-20 10:23:24,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:23:24,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 10:23:24,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133420390] [2019-11-20 10:23:24,463 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 10:23:24,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:23:24,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 10:23:24,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 10:23:24,475 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2019-11-20 10:23:24,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:23:24,490 INFO L93 Difference]: Finished difference Result 45 states and 64 transitions. [2019-11-20 10:23:24,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 10:23:24,491 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2019-11-20 10:23:24,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:23:24,497 INFO L225 Difference]: With dead ends: 45 [2019-11-20 10:23:24,497 INFO L226 Difference]: Without dead ends: 21 [2019-11-20 10:23:24,500 INFO L630 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 [2019-11-20 10:23:24,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-20 10:23:24,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-20 10:23:24,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-20 10:23:24,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2019-11-20 10:23:24,526 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 14 [2019-11-20 10:23:24,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:23:24,527 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2019-11-20 10:23:24,527 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 10:23:24,527 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2019-11-20 10:23:24,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-20 10:23:24,528 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:23:24,528 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:23:24,528 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:23:24,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:23:24,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1392318587, now seen corresponding path program 1 times [2019-11-20 10:23:24,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:23:24,529 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179605159] [2019-11-20 10:23:24,529 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:23:24,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:23:24,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:23:24,597 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179605159] [2019-11-20 10:23:24,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:23:24,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 10:23:24,598 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135360896] [2019-11-20 10:23:24,599 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 10:23:24,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:23:24,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 10:23:24,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:23:24,600 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 3 states. [2019-11-20 10:23:24,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:23:24,673 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2019-11-20 10:23:24,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 10:23:24,675 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2019-11-20 10:23:24,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:23:24,675 INFO L225 Difference]: With dead ends: 39 [2019-11-20 10:23:24,675 INFO L226 Difference]: Without dead ends: 23 [2019-11-20 10:23:24,676 INFO L630 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 [2019-11-20 10:23:24,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-20 10:23:24,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2019-11-20 10:23:24,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-20 10:23:24,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2019-11-20 10:23:24,680 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 14 [2019-11-20 10:23:24,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:23:24,681 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2019-11-20 10:23:24,681 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 10:23:24,681 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2019-11-20 10:23:24,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 10:23:24,681 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:23:24,682 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:23:24,682 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:23:24,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:23:24,682 INFO L82 PathProgramCache]: Analyzing trace with hash -298812061, now seen corresponding path program 1 times [2019-11-20 10:23:24,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:23:24,682 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88688906] [2019-11-20 10:23:24,683 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:23:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:23:24,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 10:23:24,735 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88688906] [2019-11-20 10:23:24,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:23:24,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 10:23:24,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094766670] [2019-11-20 10:23:24,736 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 10:23:24,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:23:24,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 10:23:24,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 10:23:24,736 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 4 states. [2019-11-20 10:23:24,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:23:24,808 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2019-11-20 10:23:24,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 10:23:24,809 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2019-11-20 10:23:24,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:23:24,810 INFO L225 Difference]: With dead ends: 48 [2019-11-20 10:23:24,810 INFO L226 Difference]: Without dead ends: 35 [2019-11-20 10:23:24,811 INFO L630 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 [2019-11-20 10:23:24,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-20 10:23:24,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 25. [2019-11-20 10:23:24,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-20 10:23:24,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2019-11-20 10:23:24,817 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 16 [2019-11-20 10:23:24,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:23:24,817 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2019-11-20 10:23:24,817 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 10:23:24,818 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2019-11-20 10:23:24,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 10:23:24,818 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:23:24,819 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:23:24,819 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:23:24,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:23:24,819 INFO L82 PathProgramCache]: Analyzing trace with hash -312639363, now seen corresponding path program 1 times [2019-11-20 10:23:24,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:23:24,820 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410187471] [2019-11-20 10:23:24,820 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:23:24,838 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-20 10:23:24,839 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1868313356] [2019-11-20 10:23:24,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78ed3f35-36ad-4c3c-b42d-13eb4b3ba886/bin/uautomizer/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 [2019-11-20 10:23:24,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:23:24,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:23:24,934 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:23:24,934 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 10:23:25,139 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 10:23:25,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:23:25 BoogieIcfgContainer [2019-11-20 10:23:25,173 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 10:23:25,173 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:23:25,173 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:23:25,174 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:23:25,174 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:23:24" (3/4) ... [2019-11-20 10:23:25,176 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 10:23:25,226 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_78ed3f35-36ad-4c3c-b42d-13eb4b3ba886/bin/uautomizer/witness.graphml [2019-11-20 10:23:25,226 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:23:25,228 INFO L168 Benchmark]: Toolchain (without parser) took 1771.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -104.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 11.5 GB. [2019-11-20 10:23:25,229 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:23:25,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -191.7 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-20 10:23:25,230 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.37 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:23:25,230 INFO L168 Benchmark]: Boogie Preprocessor took 25.40 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 10:23:25,231 INFO L168 Benchmark]: RCFGBuilder took 456.29 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-20 10:23:25,231 INFO L168 Benchmark]: TraceAbstraction took 905.60 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: 58.2 MB). Peak memory consumption was 58.2 MB. Max. memory is 11.5 GB. [2019-11-20 10:23:25,232 INFO L168 Benchmark]: Witness Printer took 53.29 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:23:25,234 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 288.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -191.7 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.37 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.40 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 456.29 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 905.60 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: 58.2 MB). Peak memory consumption was 58.2 MB. Max. memory is 11.5 GB. * Witness Printer took 53.29 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. 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] long long *a = malloc(sizeof(long long)*N); [L26] sum[0] = 0 [L27] i=0 VAL [N=1] [L27] COND TRUE i