./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ifncompf.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_9e8d8360-b0d9-43d6-85bd-7667c38ca3e3/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9e8d8360-b0d9-43d6-85bd-7667c38ca3e3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9e8d8360-b0d9-43d6-85bd-7667c38ca3e3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9e8d8360-b0d9-43d6-85bd-7667c38ca3e3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/ifncompf.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9e8d8360-b0d9-43d6-85bd-7667c38ca3e3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9e8d8360-b0d9-43d6-85bd-7667c38ca3e3/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 164b91ab2dbe3523d6f674cc1047c15fbc2d5be5 .................................................................................................................................................................................................................................................................................................................................................................................................................. 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 11:03:55,469 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 11:03:55,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 11:03:55,486 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 11:03:55,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 11:03:55,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 11:03:55,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 11:03:55,498 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 11:03:55,503 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 11:03:55,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 11:03:55,509 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 11:03:55,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 11:03:55,511 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 11:03:55,511 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 11:03:55,512 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 11:03:55,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 11:03:55,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 11:03:55,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 11:03:55,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 11:03:55,518 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 11:03:55,520 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 11:03:55,521 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 11:03:55,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 11:03:55,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 11:03:55,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 11:03:55,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 11:03:55,525 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 11:03:55,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 11:03:55,526 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 11:03:55,527 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 11:03:55,528 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 11:03:55,528 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 11:03:55,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 11:03:55,529 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 11:03:55,530 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 11:03:55,530 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 11:03:55,531 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 11:03:55,531 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 11:03:55,531 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 11:03:55,532 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 11:03:55,532 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 11:03:55,533 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9e8d8360-b0d9-43d6-85bd-7667c38ca3e3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 11:03:55,545 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 11:03:55,545 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 11:03:55,546 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 11:03:55,547 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 11:03:55,547 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 11:03:55,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 11:03:55,547 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 11:03:55,547 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 11:03:55,547 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 11:03:55,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 11:03:55,548 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 11:03:55,548 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 11:03:55,548 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 11:03:55,548 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 11:03:55,549 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 11:03:55,549 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 11:03:55,549 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 11:03:55,549 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 11:03:55,549 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 11:03:55,549 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 11:03:55,550 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 11:03:55,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 11:03:55,550 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 11:03:55,550 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 11:03:55,550 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 11:03:55,551 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 11:03:55,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 11:03:55,551 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 11:03:55,551 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_9e8d8360-b0d9-43d6-85bd-7667c38ca3e3/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 -> 164b91ab2dbe3523d6f674cc1047c15fbc2d5be5 [2019-11-20 11:03:55,700 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 11:03:55,715 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 11:03:55,719 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 11:03:55,720 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 11:03:55,720 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 11:03:55,721 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9e8d8360-b0d9-43d6-85bd-7667c38ca3e3/bin/uautomizer/../../sv-benchmarks/c/array-fpi/ifncompf.c [2019-11-20 11:03:55,782 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9e8d8360-b0d9-43d6-85bd-7667c38ca3e3/bin/uautomizer/data/d83e17dcd/f8ef082786a349e586b64c8657f887be/FLAGd61f95b19 [2019-11-20 11:03:56,203 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 11:03:56,204 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9e8d8360-b0d9-43d6-85bd-7667c38ca3e3/sv-benchmarks/c/array-fpi/ifncompf.c [2019-11-20 11:03:56,210 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9e8d8360-b0d9-43d6-85bd-7667c38ca3e3/bin/uautomizer/data/d83e17dcd/f8ef082786a349e586b64c8657f887be/FLAGd61f95b19 [2019-11-20 11:03:56,229 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9e8d8360-b0d9-43d6-85bd-7667c38ca3e3/bin/uautomizer/data/d83e17dcd/f8ef082786a349e586b64c8657f887be [2019-11-20 11:03:56,232 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 11:03:56,233 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 11:03:56,236 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 11:03:56,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 11:03:56,240 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 11:03:56,241 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:03:56" (1/1) ... [2019-11-20 11:03:56,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e9bcaca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:03:56, skipping insertion in model container [2019-11-20 11:03:56,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:03:56" (1/1) ... [2019-11-20 11:03:56,251 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 11:03:56,272 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 11:03:56,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:03:56,508 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 11:03:56,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:03:56,545 INFO L192 MainTranslator]: Completed translation [2019-11-20 11:03:56,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:03:56 WrapperNode [2019-11-20 11:03:56,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 11:03:56,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 11:03:56,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 11:03:56,547 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 11:03:56,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:03:56" (1/1) ... [2019-11-20 11:03:56,563 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:03:56" (1/1) ... [2019-11-20 11:03:56,581 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 11:03:56,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 11:03:56,582 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 11:03:56,582 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 11:03:56,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:03:56" (1/1) ... [2019-11-20 11:03:56,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:03:56" (1/1) ... [2019-11-20 11:03:56,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:03:56" (1/1) ... [2019-11-20 11:03:56,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:03:56" (1/1) ... [2019-11-20 11:03:56,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:03:56" (1/1) ... [2019-11-20 11:03:56,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:03:56" (1/1) ... [2019-11-20 11:03:56,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:03:56" (1/1) ... [2019-11-20 11:03:56,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 11:03:56,607 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 11:03:56,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 11:03:56,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 11:03:56,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:03:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e8d8360-b0d9-43d6-85bd-7667c38ca3e3/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 11:03:56,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 11:03:56,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 11:03:56,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 11:03:56,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 11:03:56,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 11:03:57,116 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 11:03:57,117 INFO L285 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-20 11:03:57,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:03:57 BoogieIcfgContainer [2019-11-20 11:03:57,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 11:03:57,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 11:03:57,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 11:03:57,122 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 11:03:57,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:03:56" (1/3) ... [2019-11-20 11:03:57,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@532512c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:03:57, skipping insertion in model container [2019-11-20 11:03:57,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:03:56" (2/3) ... [2019-11-20 11:03:57,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@532512c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:03:57, skipping insertion in model container [2019-11-20 11:03:57,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:03:57" (3/3) ... [2019-11-20 11:03:57,127 INFO L109 eAbstractionObserver]: Analyzing ICFG ifncompf.c [2019-11-20 11:03:57,135 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 11:03:57,142 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 11:03:57,155 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 11:03:57,179 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 11:03:57,180 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 11:03:57,180 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 11:03:57,180 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 11:03:57,180 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 11:03:57,181 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 11:03:57,181 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 11:03:57,181 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 11:03:57,193 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-11-20 11:03:57,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 11:03:57,198 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:03:57,198 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:03:57,199 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 11:03:57,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:03:57,204 INFO L82 PathProgramCache]: Analyzing trace with hash 638964938, now seen corresponding path program 1 times [2019-11-20 11:03:57,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:03:57,213 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253188572] [2019-11-20 11:03:57,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:03:57,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:03:57,323 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 11:03:57,324 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253188572] [2019-11-20 11:03:57,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:03:57,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 11:03:57,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003830984] [2019-11-20 11:03:57,330 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 11:03:57,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:03:57,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 11:03:57,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 11:03:57,344 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2019-11-20 11:03:57,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:03:57,361 INFO L93 Difference]: Finished difference Result 44 states and 64 transitions. [2019-11-20 11:03:57,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 11:03:57,362 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-11-20 11:03:57,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:03:57,370 INFO L225 Difference]: With dead ends: 44 [2019-11-20 11:03:57,371 INFO L226 Difference]: Without dead ends: 21 [2019-11-20 11:03:57,373 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 11:03:57,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-20 11:03:57,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-20 11:03:57,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-20 11:03:57,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2019-11-20 11:03:57,401 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 27 transitions. Word has length 12 [2019-11-20 11:03:57,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:03:57,401 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 27 transitions. [2019-11-20 11:03:57,401 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 11:03:57,402 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2019-11-20 11:03:57,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 11:03:57,402 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:03:57,402 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:03:57,403 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 11:03:57,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:03:57,403 INFO L82 PathProgramCache]: Analyzing trace with hash -953872449, now seen corresponding path program 1 times [2019-11-20 11:03:57,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:03:57,404 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390298031] [2019-11-20 11:03:57,404 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:03:57,420 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-20 11:03:57,420 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1724418647] [2019-11-20 11:03:57,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e8d8360-b0d9-43d6-85bd-7667c38ca3e3/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 11:03:57,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:03:57,493 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 11:03:57,498 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:03:57,526 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 11:03:57,526 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390298031] [2019-11-20 11:03:57,527 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-20 11:03:57,527 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724418647] [2019-11-20 11:03:57,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:03:57,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 11:03:57,528 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640114038] [2019-11-20 11:03:57,529 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 11:03:57,529 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:03:57,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 11:03:57,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 11:03:57,530 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. Second operand 3 states. [2019-11-20 11:03:57,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:03:57,598 INFO L93 Difference]: Finished difference Result 39 states and 51 transitions. [2019-11-20 11:03:57,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 11:03:57,598 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-11-20 11:03:57,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:03:57,599 INFO L225 Difference]: With dead ends: 39 [2019-11-20 11:03:57,599 INFO L226 Difference]: Without dead ends: 24 [2019-11-20 11:03:57,600 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 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 11:03:57,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-20 11:03:57,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2019-11-20 11:03:57,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-20 11:03:57,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2019-11-20 11:03:57,605 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 28 transitions. Word has length 12 [2019-11-20 11:03:57,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:03:57,605 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 28 transitions. [2019-11-20 11:03:57,605 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 11:03:57,605 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2019-11-20 11:03:57,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-20 11:03:57,606 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:03:57,606 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:03:57,814 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:03:57,814 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 11:03:57,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:03:57,814 INFO L82 PathProgramCache]: Analyzing trace with hash 361112916, now seen corresponding path program 1 times [2019-11-20 11:03:57,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:03:57,815 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725219339] [2019-11-20 11:03:57,815 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:03:57,833 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-20 11:03:57,833 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1207980539] [2019-11-20 11:03:57,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e8d8360-b0d9-43d6-85bd-7667c38ca3e3/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:03:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:03:57,879 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 11:03:57,880 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:03:57,901 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 11:03:57,902 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725219339] [2019-11-20 11:03:57,902 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-20 11:03:57,902 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207980539] [2019-11-20 11:03:57,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:03:57,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 11:03:57,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238475097] [2019-11-20 11:03:57,903 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 11:03:57,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:03:57,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 11:03:57,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 11:03:57,904 INFO L87 Difference]: Start difference. First operand 22 states and 28 transitions. Second operand 4 states. [2019-11-20 11:03:57,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:03:57,994 INFO L93 Difference]: Finished difference Result 47 states and 60 transitions. [2019-11-20 11:03:57,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 11:03:57,997 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-11-20 11:03:57,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:03:57,998 INFO L225 Difference]: With dead ends: 47 [2019-11-20 11:03:57,998 INFO L226 Difference]: Without dead ends: 36 [2019-11-20 11:03:57,998 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 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 11:03:57,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-20 11:03:58,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 24. [2019-11-20 11:03:58,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-20 11:03:58,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions. [2019-11-20 11:03:58,003 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 30 transitions. Word has length 15 [2019-11-20 11:03:58,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:03:58,003 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 30 transitions. [2019-11-20 11:03:58,003 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 11:03:58,003 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2019-11-20 11:03:58,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-20 11:03:58,004 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:03:58,004 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] [2019-11-20 11:03:58,207 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:03:58,208 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 11:03:58,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:03:58,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1034367045, now seen corresponding path program 1 times [2019-11-20 11:03:58,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:03:58,208 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017048860] [2019-11-20 11:03:58,208 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:03:58,254 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-20 11:03:58,254 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [623764427] [2019-11-20 11:03:58,254 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e8d8360-b0d9-43d6-85bd-7667c38ca3e3/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:03:58,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:03:58,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:03:58,337 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:03:58,338 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 11:03:58,541 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:03:58,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:03:58 BoogieIcfgContainer [2019-11-20 11:03:58,584 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 11:03:58,584 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 11:03:58,584 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 11:03:58,585 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 11:03:58,585 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:03:57" (3/4) ... [2019-11-20 11:03:58,591 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 11:03:58,644 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9e8d8360-b0d9-43d6-85bd-7667c38ca3e3/bin/uautomizer/witness.graphml [2019-11-20 11:03:58,647 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 11:03:58,649 INFO L168 Benchmark]: Toolchain (without parser) took 2415.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 952.8 MB in the beginning and 1.0 GB in the end (delta: -70.9 MB). Peak memory consumption was 68.5 MB. Max. memory is 11.5 GB. [2019-11-20 11:03:58,650 INFO L168 Benchmark]: CDTParser took 0.19 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 11:03:58,651 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 952.8 MB in the beginning and 1.1 GB in the end (delta: -181.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-20 11:03:58,651 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.15 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 11:03:58,651 INFO L168 Benchmark]: Boogie Preprocessor took 24.80 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 11:03:58,652 INFO L168 Benchmark]: RCFGBuilder took 511.50 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-20 11:03:58,655 INFO L168 Benchmark]: TraceAbstraction took 1464.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 81.5 MB). Peak memory consumption was 81.5 MB. Max. memory is 11.5 GB. [2019-11-20 11:03:58,656 INFO L168 Benchmark]: Witness Printer took 63.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 11:03:58,657 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 310.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 952.8 MB in the beginning and 1.1 GB in the end (delta: -181.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.15 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 24.80 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 511.50 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1464.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 81.5 MB). Peak memory consumption was 81.5 MB. Max. memory is 11.5 GB. * Witness Printer took 63.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 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 *a = malloc(sizeof(long long)*N); [L24] long long *b = malloc(sizeof(long long)*N); [L25] long long *c = malloc(sizeof(long long)*N); [L27] i=0 VAL [N=1] [L27] COND TRUE i