./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/modpf.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9f113b-9320-441d-8a1c-7472666e7a98/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9f113b-9320-441d-8a1c-7472666e7a98/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9f113b-9320-441d-8a1c-7472666e7a98/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9f113b-9320-441d-8a1c-7472666e7a98/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/modpf.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9f113b-9320-441d-8a1c-7472666e7a98/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9f113b-9320-441d-8a1c-7472666e7a98/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 892bed25a7b467331798a653dc66be7c127f6f0f ........................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:26:16,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:26:16,344 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:26:16,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:26:16,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:26:16,398 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:26:16,400 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:26:16,405 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:26:16,408 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:26:16,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:26:16,419 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:26:16,420 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:26:16,421 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:26:16,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:26:16,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:26:16,428 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:26:16,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:26:16,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:26:16,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:26:16,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:26:16,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:26:16,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:26:16,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:26:16,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:26:16,460 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:26:16,461 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:26:16,461 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:26:16,464 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:26:16,465 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:26:16,466 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:26:16,467 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:26:16,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:26:16,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:26:16,472 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:26:16,474 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:26:16,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:26:16,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:26:16,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:26:16,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:26:16,476 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:26:16,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:26:16,480 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9f113b-9320-441d-8a1c-7472666e7a98/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:26:16,516 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:26:16,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:26:16,518 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:26:16,518 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:26:16,519 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:26:16,519 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:26:16,519 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:26:16,519 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:26:16,526 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:26:16,526 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:26:16,527 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:26:16,528 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:26:16,528 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:26:16,528 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:26:16,528 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:26:16,529 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:26:16,529 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:26:16,529 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:26:16,530 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:26:16,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:26:16,530 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:26:16,530 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:26:16,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:26:16,530 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:26:16,531 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:26:16,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:26:16,531 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:26:16,531 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:26:16,531 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:26:16,533 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:26:16,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:26:16,534 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:26:16,534 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:26:16,534 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:26:16,534 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:26:16,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:26:16,535 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:26:16,535 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:26:16,535 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:26:16,535 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9f113b-9320-441d-8a1c-7472666e7a98/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9f113b-9320-441d-8a1c-7472666e7a98/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 892bed25a7b467331798a653dc66be7c127f6f0f [2021-10-11 02:26:16,895 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:26:16,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:26:16,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:26:16,940 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:26:16,941 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:26:16,942 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9f113b-9320-441d-8a1c-7472666e7a98/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/array-fpi/modpf.c [2021-10-11 02:26:17,011 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9f113b-9320-441d-8a1c-7472666e7a98/bin/utaipan-WLngWcDbfI/data/fed228fa3/1c2648f6d6f44933b706194b44b66581/FLAG3e9484324 [2021-10-11 02:26:17,563 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:26:17,564 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9f113b-9320-441d-8a1c-7472666e7a98/sv-benchmarks/c/array-fpi/modpf.c [2021-10-11 02:26:17,571 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9f113b-9320-441d-8a1c-7472666e7a98/bin/utaipan-WLngWcDbfI/data/fed228fa3/1c2648f6d6f44933b706194b44b66581/FLAG3e9484324 [2021-10-11 02:26:17,927 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9f113b-9320-441d-8a1c-7472666e7a98/bin/utaipan-WLngWcDbfI/data/fed228fa3/1c2648f6d6f44933b706194b44b66581 [2021-10-11 02:26:17,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:26:17,943 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:26:17,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:17,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:26:17,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:26:17,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:17" (1/1) ... [2021-10-11 02:26:17,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e4ed585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:17, skipping insertion in model container [2021-10-11 02:26:17,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:17" (1/1) ... [2021-10-11 02:26:17,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:26:17,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:26:18,174 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9f113b-9320-441d-8a1c-7472666e7a98/sv-benchmarks/c/array-fpi/modpf.c[588,601] [2021-10-11 02:26:18,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:18,206 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:26:18,221 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9f113b-9320-441d-8a1c-7472666e7a98/sv-benchmarks/c/array-fpi/modpf.c[588,601] [2021-10-11 02:26:18,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:18,245 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:26:18,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:18 WrapperNode [2021-10-11 02:26:18,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:18,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:26:18,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:26:18,247 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:26:18,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:18" (1/1) ... [2021-10-11 02:26:18,263 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:18" (1/1) ... [2021-10-11 02:26:18,283 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:26:18,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:26:18,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:26:18,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:26:18,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:18" (1/1) ... [2021-10-11 02:26:18,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:18" (1/1) ... [2021-10-11 02:26:18,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:18" (1/1) ... [2021-10-11 02:26:18,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:18" (1/1) ... [2021-10-11 02:26:18,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:18" (1/1) ... [2021-10-11 02:26:18,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:18" (1/1) ... [2021-10-11 02:26:18,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:18" (1/1) ... [2021-10-11 02:26:18,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:26:18,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:26:18,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:26:18,310 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:26:18,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:18" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9f113b-9320-441d-8a1c-7472666e7a98/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:26:18,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:26:18,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:26:18,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:26:18,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-11 02:26:18,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:26:18,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:26:18,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 02:26:18,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:26:18,970 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:26:18,971 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-11 02:26:18,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:18 BoogieIcfgContainer [2021-10-11 02:26:18,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:26:18,975 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:26:18,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:26:18,980 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:26:18,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:26:17" (1/3) ... [2021-10-11 02:26:18,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f9ad075 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:26:18, skipping insertion in model container [2021-10-11 02:26:18,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:18" (2/3) ... [2021-10-11 02:26:18,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f9ad075 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:26:18, skipping insertion in model container [2021-10-11 02:26:18,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:18" (3/3) ... [2021-10-11 02:26:19,000 INFO L111 eAbstractionObserver]: Analyzing ICFG modpf.c [2021-10-11 02:26:19,025 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:26:19,029 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:26:19,042 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:26:19,087 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:26:19,088 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:26:19,088 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:26:19,088 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:26:19,088 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:26:19,089 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:26:19,089 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:26:19,089 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:26:19,106 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2021-10-11 02:26:19,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:26:19,120 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:19,121 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:19,121 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:19,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:19,130 INFO L82 PathProgramCache]: Analyzing trace with hash 1896033224, now seen corresponding path program 1 times [2021-10-11 02:26:19,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:19,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667622639] [2021-10-11 02:26:19,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:19,313 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:26:19,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1907848119] [2021-10-11 02:26:19,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9f113b-9320-441d-8a1c-7472666e7a98/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:26:19,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:19,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:26:19,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:19,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:19,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:26:19,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:19,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667622639] [2021-10-11 02:26:19,575 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:26:19,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907848119] [2021-10-11 02:26:19,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:19,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-11 02:26:19,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357926981] [2021-10-11 02:26:19,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:26:19,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:19,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:26:19,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:26:19,606 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 4 states. [2021-10-11 02:26:19,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:19,691 INFO L93 Difference]: Finished difference Result 20 states and 27 transitions. [2021-10-11 02:26:19,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:26:19,694 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-10-11 02:26:19,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:19,703 INFO L225 Difference]: With dead ends: 20 [2021-10-11 02:26:19,704 INFO L226 Difference]: Without dead ends: 10 [2021-10-11 02:26:19,707 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:26:19,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-10-11 02:26:19,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-11 02:26:19,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-10-11 02:26:19,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2021-10-11 02:26:19,748 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 7 [2021-10-11 02:26:19,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:19,748 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-10-11 02:26:19,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:26:19,749 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2021-10-11 02:26:19,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:26:19,750 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:19,750 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:19,978 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-11 02:26:19,979 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:19,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:19,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1521608806, now seen corresponding path program 1 times [2021-10-11 02:26:19,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:19,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852016489] [2021-10-11 02:26:19,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:20,003 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:26:20,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1404190798] [2021-10-11 02:26:20,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9f113b-9320-441d-8a1c-7472666e7a98/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:26:20,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:20,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:26:20,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:20,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 02:26:20,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:26:20,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 02:26:20,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852016489] [2021-10-11 02:26:20,151 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:26:20,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1404190798] [2021-10-11 02:26:20,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:20,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-10-11 02:26:20,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653840834] [2021-10-11 02:26:20,154 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:26:20,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:20,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:26:20,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:26:20,156 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand 5 states. [2021-10-11 02:26:20,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:20,217 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2021-10-11 02:26:20,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:26:20,218 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2021-10-11 02:26:20,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:20,219 INFO L225 Difference]: With dead ends: 21 [2021-10-11 02:26:20,219 INFO L226 Difference]: Without dead ends: 16 [2021-10-11 02:26:20,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:26:20,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-11 02:26:20,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 11. [2021-10-11 02:26:20,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-10-11 02:26:20,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2021-10-11 02:26:20,226 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 8 [2021-10-11 02:26:20,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:20,226 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-10-11 02:26:20,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:26:20,226 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2021-10-11 02:26:20,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:26:20,227 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:20,227 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:20,442 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:26:20,442 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:20,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:20,443 INFO L82 PathProgramCache]: Analyzing trace with hash 70980923, now seen corresponding path program 1 times [2021-10-11 02:26:20,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:20,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513143645] [2021-10-11 02:26:20,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:20,471 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:26:20,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2092300296] [2021-10-11 02:26:20,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9f113b-9320-441d-8a1c-7472666e7a98/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:26:20,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:26:20,562 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:26:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:26:20,597 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:26:20,651 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:26:20,651 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:26:20,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:26:20,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:26:20 BoogieIcfgContainer [2021-10-11 02:26:20,893 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:26:20,894 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:26:20,894 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:26:20,894 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:26:20,895 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:18" (3/4) ... [2021-10-11 02:26:20,897 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:26:20,960 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9f113b-9320-441d-8a1c-7472666e7a98/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:26:20,960 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:26:20,962 INFO L168 Benchmark]: Toolchain (without parser) took 3018.27 ms. Allocated memory is still 119.5 MB. Free memory was 76.9 MB in the beginning and 54.2 MB in the end (delta: 22.7 MB). Peak memory consumption was 23.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:20,963 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 119.5 MB. Free memory is still 94.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:26:20,964 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.00 ms. Allocated memory is still 119.5 MB. Free memory was 76.7 MB in the beginning and 93.3 MB in the end (delta: -16.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:20,965 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.06 ms. Allocated memory is still 119.5 MB. Free memory was 93.3 MB in the beginning and 91.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:26:20,965 INFO L168 Benchmark]: Boogie Preprocessor took 24.86 ms. Allocated memory is still 119.5 MB. Free memory was 91.9 MB in the beginning and 90.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:20,966 INFO L168 Benchmark]: RCFGBuilder took 664.17 ms. Allocated memory is still 119.5 MB. Free memory was 90.4 MB in the beginning and 68.3 MB in the end (delta: 22.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:20,967 INFO L168 Benchmark]: TraceAbstraction took 1918.00 ms. Allocated memory is still 119.5 MB. Free memory was 67.8 MB in the beginning and 56.3 MB in the end (delta: 11.5 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:20,968 INFO L168 Benchmark]: Witness Printer took 66.99 ms. Allocated memory is still 119.5 MB. Free memory was 56.3 MB in the beginning and 54.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:20,971 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 119.5 MB. Free memory is still 94.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 299.00 ms. Allocated memory is still 119.5 MB. Free memory was 76.7 MB in the beginning and 93.3 MB in the end (delta: -16.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.06 ms. Allocated memory is still 119.5 MB. Free memory was 93.3 MB in the beginning and 91.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.86 ms. Allocated memory is still 119.5 MB. Free memory was 91.9 MB in the beginning and 90.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 664.17 ms. Allocated memory is still 119.5 MB. Free memory was 90.4 MB in the beginning and 68.3 MB in the end (delta: 22.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1918.00 ms. Allocated memory is still 119.5 MB. Free memory was 67.8 MB in the beginning and 56.3 MB in the end (delta: 11.5 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. * Witness Printer took 66.99 ms. Allocated memory is still 119.5 MB. Free memory was 56.3 MB in the beginning and 54.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L13] COND FALSE !(!cond) [L27] int i; [L28] int sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] sum[0] = 0 [L32] i=0 VAL [N=1] [L32] COND TRUE i