./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/mult_array_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170bb3b8-4644-4c3e-8224-3094174f4648/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170bb3b8-4644-4c3e-8224-3094174f4648/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170bb3b8-4644-4c3e-8224-3094174f4648/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170bb3b8-4644-4c3e-8224-3094174f4648/bin/utaipan-tZwUujhuQw/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/mult_array_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170bb3b8-4644-4c3e-8224-3094174f4648/bin/utaipan-tZwUujhuQw/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170bb3b8-4644-4c3e-8224-3094174f4648/bin/utaipan-tZwUujhuQw --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d94197bb45011c55db64c4b2cad037cf69a2430f75ef8668b076bdef6ca69182 ................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 05:16:52,061 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:16:52,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:16:52,096 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:16:52,096 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:16:52,098 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:16:52,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:16:52,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:16:52,105 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:16:52,106 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:16:52,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:16:52,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:16:52,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:16:52,111 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:16:52,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:16:52,115 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:16:52,116 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:16:52,118 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:16:52,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:16:52,122 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:16:52,124 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:16:52,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:16:52,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:16:52,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:16:52,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:16:52,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:16:52,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:16:52,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:16:52,137 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:16:52,138 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:16:52,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:16:52,140 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:16:52,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:16:52,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:16:52,144 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:16:52,144 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:16:52,145 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:16:52,146 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:16:52,146 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:16:52,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:16:52,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:16:52,150 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170bb3b8-4644-4c3e-8224-3094174f4648/bin/utaipan-tZwUujhuQw/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-20 05:16:52,179 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:16:52,179 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:16:52,180 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:16:52,181 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:16:52,181 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:16:52,181 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:16:52,181 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-20 05:16:52,182 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:16:52,182 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:16:52,182 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-20 05:16:52,183 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-20 05:16:52,183 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:16:52,183 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-20 05:16:52,183 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-20 05:16:52,184 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-20 05:16:52,184 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-20 05:16:52,185 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-20 05:16:52,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:16:52,185 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:16:52,185 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-20 05:16:52,186 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-20 05:16:52,186 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:16:52,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:16:52,187 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-20 05:16:52,187 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-20 05:16:52,187 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-20 05:16:52,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:16:52,188 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:16:52,188 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:16:52,188 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:16:52,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:16:52,189 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:16:52,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:16:52,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:16:52,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:16:52,190 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-20 05:16:52,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-20 05:16:52,190 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:16:52,191 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:16:52,191 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_170bb3b8-4644-4c3e-8224-3094174f4648/bin/utaipan-tZwUujhuQw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170bb3b8-4644-4c3e-8224-3094174f4648/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d94197bb45011c55db64c4b2cad037cf69a2430f75ef8668b076bdef6ca69182 [2021-10-20 05:16:52,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:16:52,479 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:16:52,482 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:16:52,484 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:16:52,485 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:16:52,486 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170bb3b8-4644-4c3e-8224-3094174f4648/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/array-memsafety/mult_array_unsafe.i [2021-10-20 05:16:52,557 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170bb3b8-4644-4c3e-8224-3094174f4648/bin/utaipan-tZwUujhuQw/data/1264d40f4/4ad4983add884f72b8efe48c5363feb5/FLAGbe2b3dea4 [2021-10-20 05:16:53,152 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:16:53,153 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170bb3b8-4644-4c3e-8224-3094174f4648/sv-benchmarks/c/array-memsafety/mult_array_unsafe.i [2021-10-20 05:16:53,179 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170bb3b8-4644-4c3e-8224-3094174f4648/bin/utaipan-tZwUujhuQw/data/1264d40f4/4ad4983add884f72b8efe48c5363feb5/FLAGbe2b3dea4 [2021-10-20 05:16:53,428 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170bb3b8-4644-4c3e-8224-3094174f4648/bin/utaipan-tZwUujhuQw/data/1264d40f4/4ad4983add884f72b8efe48c5363feb5 [2021-10-20 05:16:53,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:16:53,432 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:16:53,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:16:53,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:16:53,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:16:53,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:16:53" (1/1) ... [2021-10-20 05:16:53,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@433dda2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:53, skipping insertion in model container [2021-10-20 05:16:53,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:16:53" (1/1) ... [2021-10-20 05:16:53,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:16:53,487 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:16:53,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:16:53,900 INFO L203 MainTranslator]: Completed pre-run [2021-10-20 05:16:53,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:16:53,989 INFO L208 MainTranslator]: Completed translation [2021-10-20 05:16:53,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:53 WrapperNode [2021-10-20 05:16:53,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:16:53,991 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-20 05:16:53,991 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-20 05:16:53,992 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-20 05:16:54,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:53" (1/1) ... [2021-10-20 05:16:54,018 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:53" (1/1) ... [2021-10-20 05:16:54,040 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-20 05:16:54,040 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-20 05:16:54,041 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-20 05:16:54,041 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-20 05:16:54,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:53" (1/1) ... [2021-10-20 05:16:54,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:53" (1/1) ... [2021-10-20 05:16:54,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:53" (1/1) ... [2021-10-20 05:16:54,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:53" (1/1) ... [2021-10-20 05:16:54,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:53" (1/1) ... [2021-10-20 05:16:54,062 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:53" (1/1) ... [2021-10-20 05:16:54,063 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:53" (1/1) ... [2021-10-20 05:16:54,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-20 05:16:54,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-20 05:16:54,071 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-20 05:16:54,071 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-20 05:16:54,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:53" (1/1) ... [2021-10-20 05:16:54,085 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:16:54,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170bb3b8-4644-4c3e-8224-3094174f4648/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:16:54,112 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170bb3b8-4644-4c3e-8224-3094174f4648/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-20 05:16:54,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170bb3b8-4644-4c3e-8224-3094174f4648/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-20 05:16:54,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-20 05:16:54,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-20 05:16:54,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-20 05:16:54,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-20 05:16:54,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-20 05:16:54,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-20 05:16:54,643 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-20 05:16:54,643 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-20 05:16:54,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:16:54 BoogieIcfgContainer [2021-10-20 05:16:54,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-20 05:16:54,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-20 05:16:54,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-20 05:16:54,652 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-20 05:16:54,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:16:53" (1/3) ... [2021-10-20 05:16:54,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cf556bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:16:54, skipping insertion in model container [2021-10-20 05:16:54,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:53" (2/3) ... [2021-10-20 05:16:54,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cf556bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:16:54, skipping insertion in model container [2021-10-20 05:16:54,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:16:54" (3/3) ... [2021-10-20 05:16:54,655 INFO L111 eAbstractionObserver]: Analyzing ICFG mult_array_unsafe.i [2021-10-20 05:16:54,661 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-20 05:16:54,661 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-10-20 05:16:54,710 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-20 05:16:54,717 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-20 05:16:54,717 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-20 05:16:54,732 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 8 states have (on average 2.25) internal successors, (18), 15 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:16:54,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-20 05:16:54,739 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:16:54,740 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-20 05:16:54,740 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 3 more)] === [2021-10-20 05:16:54,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:16:54,747 INFO L82 PathProgramCache]: Analyzing trace with hash 107322, now seen corresponding path program 1 times [2021-10-20 05:16:54,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:16:54,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924511771] [2021-10-20 05:16:54,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:16:54,763 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:16:54,841 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-20 05:16:54,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [119757671] [2021-10-20 05:16:54,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:16:54,842 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:16:54,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170bb3b8-4644-4c3e-8224-3094174f4648/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:16:54,861 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170bb3b8-4644-4c3e-8224-3094174f4648/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 05:16:54,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170bb3b8-4644-4c3e-8224-3094174f4648/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-20 05:16:54,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:16:54,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-20 05:16:54,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:16:55,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:16:55,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:16:55,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:16:55,119 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:16:55,120 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924511771] [2021-10-20 05:16:55,120 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-20 05:16:55,120 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119757671] [2021-10-20 05:16:55,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [119757671] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:16:55,122 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:16:55,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-20 05:16:55,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912845262] [2021-10-20 05:16:55,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:16:55,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:16:55,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:16:55,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:16:55,147 INFO L87 Difference]: Start difference. First operand has 16 states, 8 states have (on average 2.25) internal successors, (18), 15 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:16:55,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:16:55,205 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2021-10-20 05:16:55,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:16:55,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-20 05:16:55,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:16:55,217 INFO L225 Difference]: With dead ends: 16 [2021-10-20 05:16:55,217 INFO L226 Difference]: Without dead ends: 15 [2021-10-20 05:16:55,219 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:16:55,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-20 05:16:55,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-10-20 05:16:55,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 8 states have (on average 2.0) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:16:55,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-10-20 05:16:55,269 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 3 [2021-10-20 05:16:55,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:16:55,270 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-10-20 05:16:55,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:16:55,271 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-10-20 05:16:55,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-20 05:16:55,272 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:16:55,272 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-20 05:16:55,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170bb3b8-4644-4c3e-8224-3094174f4648/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-20 05:16:55,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170bb3b8-4644-4c3e-8224-3094174f4648/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-20 05:16:55,494 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 3 more)] === [2021-10-20 05:16:55,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:16:55,496 INFO L82 PathProgramCache]: Analyzing trace with hash 3327913, now seen corresponding path program 1 times [2021-10-20 05:16:55,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:16:55,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302912296] [2021-10-20 05:16:55,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:16:55,497 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:16:55,512 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-20 05:16:55,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1620838475] [2021-10-20 05:16:55,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:16:55,513 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:16:55,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170bb3b8-4644-4c3e-8224-3094174f4648/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:16:55,522 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170bb3b8-4644-4c3e-8224-3094174f4648/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 05:16:55,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170bb3b8-4644-4c3e-8224-3094174f4648/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-20 05:16:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-20 05:16:55,582 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-20 05:16:55,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-20 05:16:55,612 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-20 05:16:55,613 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-20 05:16:55,615 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-20 05:16:55,617 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-20 05:16:55,617 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-20 05:16:55,617 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-20 05:16:55,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-20 05:16:55,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-20 05:16:55,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK [2021-10-20 05:16:55,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170bb3b8-4644-4c3e-8224-3094174f4648/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-20 05:16:55,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170bb3b8-4644-4c3e-8224-3094174f4648/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-20 05:16:55,846 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-20 05:16:55,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:16:55 BoogieIcfgContainer [2021-10-20 05:16:55,876 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-20 05:16:55,876 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-20 05:16:55,877 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-20 05:16:55,877 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-20 05:16:55,877 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:16:54" (3/4) ... [2021-10-20 05:16:55,879 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-20 05:16:55,928 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170bb3b8-4644-4c3e-8224-3094174f4648/bin/utaipan-tZwUujhuQw/witness.graphml [2021-10-20 05:16:55,933 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-20 05:16:55,936 INFO L168 Benchmark]: Toolchain (without parser) took 2501.69 ms. Allocated memory was 100.7 MB in the beginning and 132.1 MB in the end (delta: 31.5 MB). Free memory was 67.2 MB in the beginning and 97.0 MB in the end (delta: -29.7 MB). Peak memory consumption was 151.3 kB. Max. memory is 16.1 GB. [2021-10-20 05:16:55,942 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 100.7 MB. Free memory is still 55.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:16:55,948 INFO L168 Benchmark]: CACSL2BoogieTranslator took 556.67 ms. Allocated memory was 100.7 MB in the beginning and 132.1 MB in the end (delta: 31.5 MB). Free memory was 67.0 MB in the beginning and 101.4 MB in the end (delta: -34.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-20 05:16:55,949 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.71 ms. Allocated memory is still 132.1 MB. Free memory was 101.4 MB in the beginning and 99.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:16:55,949 INFO L168 Benchmark]: Boogie Preprocessor took 29.68 ms. Allocated memory is still 132.1 MB. Free memory was 99.4 MB in the beginning and 98.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:16:55,950 INFO L168 Benchmark]: RCFGBuilder took 575.30 ms. Allocated memory is still 132.1 MB. Free memory was 98.2 MB in the beginning and 82.6 MB in the end (delta: 15.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-20 05:16:55,950 INFO L168 Benchmark]: TraceAbstraction took 1227.79 ms. Allocated memory is still 132.1 MB. Free memory was 82.0 MB in the beginning and 98.3 MB in the end (delta: -16.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:16:55,951 INFO L168 Benchmark]: Witness Printer took 56.90 ms. Allocated memory is still 132.1 MB. Free memory was 98.3 MB in the beginning and 97.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:16:55,954 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 100.7 MB. Free memory is still 55.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 556.67 ms. Allocated memory was 100.7 MB in the beginning and 132.1 MB in the end (delta: 31.5 MB). Free memory was 67.0 MB in the beginning and 101.4 MB in the end (delta: -34.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.71 ms. Allocated memory is still 132.1 MB. Free memory was 101.4 MB in the beginning and 99.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.68 ms. Allocated memory is still 132.1 MB. Free memory was 99.4 MB in the beginning and 98.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 575.30 ms. Allocated memory is still 132.1 MB. Free memory was 98.2 MB in the beginning and 82.6 MB in the end (delta: 15.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1227.79 ms. Allocated memory is still 132.1 MB. Free memory was 82.0 MB in the beginning and 98.3 MB in the end (delta: -16.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 56.90 ms. Allocated memory is still 132.1 MB. Free memory was 98.3 MB in the beginning and 97.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 522]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L513] int i, j; [L514] int length = __VERIFIER_nondet_int(); [L515] COND TRUE length < 1 || length >= 2147483647 / sizeof(int) [L515] length = 1 [L516] int fac = __VERIFIER_nondet_int(); [L517] COND TRUE fac < 1 || fac >= 2147483647 / (sizeof(int) * length) [L517] fac = 1 [L518] int *arr = __builtin_alloca (length); [L519] int *arr2 = __builtin_alloca (fac*length); [L520] COND FALSE !(!arr || !arr2) [L521] i=0 [L521] COND TRUE i