./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/s5iff.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8d31f386 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-fpi/s5iff.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fb3f8e38e781ce176014f904e2a60394b3e06270 ...................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-04 17:29:00,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-04 17:29:00,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-04 17:29:00,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-04 17:29:00,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-04 17:29:00,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-04 17:29:00,118 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-04 17:29:00,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-04 17:29:00,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-04 17:29:00,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-04 17:29:00,130 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-04 17:29:00,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-04 17:29:00,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-04 17:29:00,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-04 17:29:00,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-04 17:29:00,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-04 17:29:00,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-04 17:29:00,139 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-04 17:29:00,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-04 17:29:00,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-04 17:29:00,147 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-04 17:29:00,148 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-04 17:29:00,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-04 17:29:00,150 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-04 17:29:00,155 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-04 17:29:00,155 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-04 17:29:00,156 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-04 17:29:00,157 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-04 17:29:00,157 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-04 17:29:00,158 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-04 17:29:00,158 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-04 17:29:00,159 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-04 17:29:00,160 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-04 17:29:00,161 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-04 17:29:00,161 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-04 17:29:00,161 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-04 17:29:00,162 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-04 17:29:00,162 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-04 17:29:00,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-04 17:29:00,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-04 17:29:00,164 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-04 17:29:00,165 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-04 17:29:00,194 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-04 17:29:00,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-04 17:29:00,196 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-04 17:29:00,197 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-04 17:29:00,197 INFO L138 SettingsManager]: * Use SBE=true [2021-07-04 17:29:00,197 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-04 17:29:00,197 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-04 17:29:00,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-04 17:29:00,197 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-04 17:29:00,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-04 17:29:00,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-04 17:29:00,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-04 17:29:00,199 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-04 17:29:00,199 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-04 17:29:00,199 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-04 17:29:00,199 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-04 17:29:00,199 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-04 17:29:00,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-04 17:29:00,200 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-04 17:29:00,200 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-04 17:29:00,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 17:29:00,200 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-04 17:29:00,200 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-04 17:29:00,201 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-04 17:29:00,201 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-04 17:29:00,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-04 17:29:00,201 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-04 17:29:00,201 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-04 17:29:00,201 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb3f8e38e781ce176014f904e2a60394b3e06270 [2021-07-04 17:29:00,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-04 17:29:00,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-04 17:29:00,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-04 17:29:00,508 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-04 17:29:00,509 INFO L275 PluginConnector]: CDTParser initialized [2021-07-04 17:29:00,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/s5iff.c [2021-07-04 17:29:00,567 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f98ab2eda/04fb9e48e7e64be5b78b7e28d375fa9e/FLAG141f7096a [2021-07-04 17:29:00,925 INFO L306 CDTParser]: Found 1 translation units. [2021-07-04 17:29:00,926 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/s5iff.c [2021-07-04 17:29:00,931 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f98ab2eda/04fb9e48e7e64be5b78b7e28d375fa9e/FLAG141f7096a [2021-07-04 17:29:00,946 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f98ab2eda/04fb9e48e7e64be5b78b7e28d375fa9e [2021-07-04 17:29:00,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-04 17:29:00,950 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-04 17:29:00,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-04 17:29:00,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-04 17:29:00,956 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-04 17:29:00,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 05:29:00" (1/1) ... [2021-07-04 17:29:00,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1524c57e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:29:00, skipping insertion in model container [2021-07-04 17:29:00,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 05:29:00" (1/1) ... [2021-07-04 17:29:00,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-04 17:29:00,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-04 17:29:01,099 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/s5iff.c[588,601] [2021-07-04 17:29:01,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 17:29:01,127 INFO L203 MainTranslator]: Completed pre-run [2021-07-04 17:29:01,136 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/s5iff.c[588,601] [2021-07-04 17:29:01,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 17:29:01,164 INFO L208 MainTranslator]: Completed translation [2021-07-04 17:29:01,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:29:01 WrapperNode [2021-07-04 17:29:01,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-04 17:29:01,166 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-04 17:29:01,167 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-04 17:29:01,168 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-04 17:29:01,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:29:01" (1/1) ... [2021-07-04 17:29:01,202 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:29:01" (1/1) ... [2021-07-04 17:29:01,221 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-04 17:29:01,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-04 17:29:01,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-04 17:29:01,222 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-04 17:29:01,228 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:29:01" (1/1) ... [2021-07-04 17:29:01,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:29:01" (1/1) ... [2021-07-04 17:29:01,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:29:01" (1/1) ... [2021-07-04 17:29:01,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:29:01" (1/1) ... [2021-07-04 17:29:01,243 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:29:01" (1/1) ... [2021-07-04 17:29:01,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:29:01" (1/1) ... [2021-07-04 17:29:01,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:29:01" (1/1) ... [2021-07-04 17:29:01,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-04 17:29:01,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-04 17:29:01,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-04 17:29:01,259 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-04 17:29:01,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:29:01" (1/1) ... [2021-07-04 17:29:01,265 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 17:29:01,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-04 17:29:01,282 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-07-04 17:29:01,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-07-04 17:29:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-04 17:29:01,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-04 17:29:01,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-04 17:29:01,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-07-04 17:29:01,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-04 17:29:01,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-04 17:29:01,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-04 17:29:01,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-04 17:29:01,574 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-04 17:29:01,575 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-07-04 17:29:01,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 05:29:01 BoogieIcfgContainer [2021-07-04 17:29:01,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-04 17:29:01,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-04 17:29:01,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-04 17:29:01,579 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-04 17:29:01,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.07 05:29:00" (1/3) ... [2021-07-04 17:29:01,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e76857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 05:29:01, skipping insertion in model container [2021-07-04 17:29:01,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:29:01" (2/3) ... [2021-07-04 17:29:01,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e76857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 05:29:01, skipping insertion in model container [2021-07-04 17:29:01,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 05:29:01" (3/3) ... [2021-07-04 17:29:01,582 INFO L111 eAbstractionObserver]: Analyzing ICFG s5iff.c [2021-07-04 17:29:01,586 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-04 17:29:01,602 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-04 17:29:01,653 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-04 17:29:01,658 INFO L329 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=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-04 17:29:01,658 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-04 17:29:01,668 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 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) [2021-07-04 17:29:01,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-07-04 17:29:01,673 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 17:29:01,674 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-04 17:29:01,674 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 17:29:01,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 17:29:01,679 INFO L82 PathProgramCache]: Analyzing trace with hash 356661439, now seen corresponding path program 1 times [2021-07-04 17:29:01,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-04 17:29:01,685 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967522933] [2021-07-04 17:29:01,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 17:29:01,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-04 17:29:01,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-04 17:29:01,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:29:01,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 17:29:01,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:29:01,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 17:29:01,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-04 17:29:01,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-04 17:29:01,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967522933] [2021-07-04 17:29:01,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967522933] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-04 17:29:01,796 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-04 17:29:01,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-04 17:29:01,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256970833] [2021-07-04 17:29:01,801 INFO L425 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-07-04 17:29:01,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-04 17:29:01,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-07-04 17:29:01,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-04 17:29:01,816 INFO L87 Difference]: Start difference. First operand has 19 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 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 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-07-04 17:29:01,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-04 17:29:01,828 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2021-07-04 17:29:01,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-04 17:29:01,829 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2021-07-04 17:29:01,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-04 17:29:01,834 INFO L225 Difference]: With dead ends: 34 [2021-07-04 17:29:01,834 INFO L226 Difference]: Without dead ends: 15 [2021-07-04 17:29:01,837 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-04 17:29:01,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-07-04 17:29:01,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-07-04 17:29:01,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 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) [2021-07-04 17:29:01,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-07-04 17:29:01,859 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2021-07-04 17:29:01,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-04 17:29:01,859 INFO L442 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-07-04 17:29:01,859 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-07-04 17:29:01,859 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-07-04 17:29:01,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-07-04 17:29:01,860 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 17:29:01,860 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-04 17:29:01,860 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-04 17:29:01,861 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 17:29:01,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 17:29:01,864 INFO L82 PathProgramCache]: Analyzing trace with hash -452685187, now seen corresponding path program 1 times [2021-07-04 17:29:01,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-04 17:29:01,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131898265] [2021-07-04 17:29:01,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 17:29:01,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-04 17:29:01,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-04 17:29:01,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:29:01,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 17:29:01,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:29:01,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 17:29:01,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:29:01,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-04 17:29:01,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:29:01,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 17:29:01,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-04 17:29:01,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-04 17:29:01,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131898265] [2021-07-04 17:29:01,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131898265] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-04 17:29:01,982 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-04 17:29:01,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-04 17:29:01,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911533620] [2021-07-04 17:29:01,984 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-04 17:29:01,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-04 17:29:01,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-04 17:29:01,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-07-04 17:29:01,988 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-07-04 17:29:02,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-04 17:29:02,044 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2021-07-04 17:29:02,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-04 17:29:02,045 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2021-07-04 17:29:02,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-04 17:29:02,046 INFO L225 Difference]: With dead ends: 28 [2021-07-04 17:29:02,046 INFO L226 Difference]: Without dead ends: 20 [2021-07-04 17:29:02,048 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-07-04 17:29:02,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-07-04 17:29:02,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2021-07-04 17:29:02,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 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) [2021-07-04 17:29:02,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2021-07-04 17:29:02,055 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 11 [2021-07-04 17:29:02,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-04 17:29:02,055 INFO L442 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-07-04 17:29:02,055 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-07-04 17:29:02,055 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2021-07-04 17:29:02,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-07-04 17:29:02,056 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 17:29:02,057 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-04 17:29:02,058 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-04 17:29:02,059 INFO L374 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 17:29:02,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 17:29:02,060 INFO L82 PathProgramCache]: Analyzing trace with hash 623611495, now seen corresponding path program 1 times [2021-07-04 17:29:02,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-04 17:29:02,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625605193] [2021-07-04 17:29:02,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 17:29:02,061 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-04 17:29:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-04 17:29:02,111 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-04 17:29:02,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-04 17:29:02,144 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-04 17:29:02,164 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-04 17:29:02,164 INFO L639 BasicCegarLoop]: Counterexample is feasible [2021-07-04 17:29:02,167 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-04 17:29:02,168 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-04 17:29:02,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.07 05:29:02 BoogieIcfgContainer [2021-07-04 17:29:02,202 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-04 17:29:02,202 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-04 17:29:02,202 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-04 17:29:02,202 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-04 17:29:02,203 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 05:29:01" (3/4) ... [2021-07-04 17:29:02,204 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-07-04 17:29:02,240 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-04 17:29:02,243 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-04 17:29:02,244 INFO L168 Benchmark]: Toolchain (without parser) took 1293.73 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 37.6 MB in the beginning and 38.7 MB in the end (delta: -1.1 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2021-07-04 17:29:02,245 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 58.7 MB. Free memory is still 41.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 17:29:02,245 INFO L168 Benchmark]: CACSL2BoogieTranslator took 212.33 ms. Allocated memory is still 58.7 MB. Free memory was 37.5 MB in the beginning and 27.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-07-04 17:29:02,249 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.66 ms. Allocated memory is still 58.7 MB. Free memory was 27.5 MB in the beginning and 42.1 MB in the end (delta: -14.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-04 17:29:02,251 INFO L168 Benchmark]: Boogie Preprocessor took 36.13 ms. Allocated memory is still 58.7 MB. Free memory was 42.1 MB in the beginning and 40.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 17:29:02,252 INFO L168 Benchmark]: RCFGBuilder took 317.39 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 40.8 MB in the beginning and 57.9 MB in the end (delta: -17.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2021-07-04 17:29:02,253 INFO L168 Benchmark]: TraceAbstraction took 624.58 ms. Allocated memory is still 75.5 MB. Free memory was 57.3 MB in the beginning and 41.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. [2021-07-04 17:29:02,254 INFO L168 Benchmark]: Witness Printer took 40.86 ms. Allocated memory is still 75.5 MB. Free memory was 41.2 MB in the beginning and 38.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-04 17:29:02,257 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 58.7 MB. Free memory is still 41.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 212.33 ms. Allocated memory is still 58.7 MB. Free memory was 37.5 MB in the beginning and 27.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.66 ms. Allocated memory is still 58.7 MB. Free memory was 27.5 MB in the beginning and 42.1 MB in the end (delta: -14.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.13 ms. Allocated memory is still 58.7 MB. Free memory was 42.1 MB in the beginning and 40.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 317.39 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 40.8 MB in the beginning and 57.9 MB in the end (delta: -17.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 624.58 ms. Allocated memory is still 75.5 MB. Free memory was 57.3 MB in the beginning and 41.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. * Witness Printer took 40.86 ms. Allocated memory is still 75.5 MB. Free memory was 41.2 MB in the beginning and 38.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. 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: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L13] COND FALSE !(!cond) VAL [N=1] [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] sum[0] = 1 [L32] i=0 VAL [N=1] [L32] COND TRUE i