./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-examples/relax-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/array-examples/relax-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dbd52e95eb1af7e22fe9d404e18d13efde04c9db ..................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-906a4fb [2020-10-19 17:59:02,160 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 17:59:02,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 17:59:02,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 17:59:02,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 17:59:02,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 17:59:02,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 17:59:02,194 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 17:59:02,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 17:59:02,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 17:59:02,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 17:59:02,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 17:59:02,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 17:59:02,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 17:59:02,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 17:59:02,204 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 17:59:02,206 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 17:59:02,210 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 17:59:02,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 17:59:02,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 17:59:02,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 17:59:02,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 17:59:02,227 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 17:59:02,229 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 17:59:02,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 17:59:02,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 17:59:02,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 17:59:02,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 17:59:02,241 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 17:59:02,243 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 17:59:02,243 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 17:59:02,244 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 17:59:02,245 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 17:59:02,246 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 17:59:02,248 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 17:59:02,248 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 17:59:02,249 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 17:59:02,250 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 17:59:02,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 17:59:02,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 17:59:02,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 17:59:02,254 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-19 17:59:02,306 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 17:59:02,309 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 17:59:02,311 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 17:59:02,314 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 17:59:02,314 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 17:59:02,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 17:59:02,315 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 17:59:02,315 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 17:59:02,316 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 17:59:02,316 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 17:59:02,317 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 17:59:02,317 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 17:59:02,317 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 17:59:02,319 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 17:59:02,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 17:59:02,320 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 17:59:02,320 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 17:59:02,320 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 17:59:02,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 17:59:02,321 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 17:59:02,322 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 17:59:02,322 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 17:59:02,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 17:59:02,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 17:59:02,323 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 17:59:02,324 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 17:59:02,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 17:59:02,324 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 17:59:02,325 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /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 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 -> 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 -> dbd52e95eb1af7e22fe9d404e18d13efde04c9db [2020-10-19 17:59:02,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 17:59:02,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 17:59:02,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 17:59:02,652 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 17:59:02,653 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 17:59:02,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/relax-1.i [2020-10-19 17:59:02,709 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35e62fae8/2cb64712c2024e8aafb33ca8684ac16d/FLAG1288d0e62 [2020-10-19 17:59:03,153 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 17:59:03,154 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/relax-1.i [2020-10-19 17:59:03,170 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35e62fae8/2cb64712c2024e8aafb33ca8684ac16d/FLAG1288d0e62 [2020-10-19 17:59:03,471 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35e62fae8/2cb64712c2024e8aafb33ca8684ac16d [2020-10-19 17:59:03,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 17:59:03,481 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 17:59:03,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 17:59:03,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 17:59:03,486 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 17:59:03,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 05:59:03" (1/1) ... [2020-10-19 17:59:03,490 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d7bd5ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:59:03, skipping insertion in model container [2020-10-19 17:59:03,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 05:59:03" (1/1) ... [2020-10-19 17:59:03,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 17:59:03,567 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 17:59:04,033 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 17:59:04,043 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 17:59:04,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 17:59:04,184 INFO L208 MainTranslator]: Completed translation [2020-10-19 17:59:04,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:59:04 WrapperNode [2020-10-19 17:59:04,185 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 17:59:04,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 17:59:04,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 17:59:04,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 17:59:04,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:59:04" (1/1) ... [2020-10-19 17:59:04,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:59:04" (1/1) ... [2020-10-19 17:59:04,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:59:04" (1/1) ... [2020-10-19 17:59:04,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:59:04" (1/1) ... [2020-10-19 17:59:04,277 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:59:04" (1/1) ... [2020-10-19 17:59:04,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:59:04" (1/1) ... [2020-10-19 17:59:04,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:59:04" (1/1) ... [2020-10-19 17:59:04,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 17:59:04,313 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 17:59:04,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 17:59:04,314 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 17:59:04,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:59:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 17:59:04,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 17:59:04,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 17:59:04,379 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-19 17:59:04,379 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-19 17:59:04,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-19 17:59:04,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-19 17:59:04,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-19 17:59:04,381 INFO L138 BoogieDeclarations]: Found implementation of procedure is_relaxed_prefix [2020-10-19 17:59:04,381 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 17:59:04,382 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-19 17:59:04,383 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-19 17:59:04,383 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-19 17:59:04,383 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-19 17:59:04,383 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-19 17:59:04,383 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-19 17:59:04,384 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-19 17:59:04,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 17:59:04,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-19 17:59:04,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-19 17:59:04,386 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-19 17:59:04,387 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-19 17:59:04,387 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-19 17:59:04,388 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-19 17:59:04,388 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-19 17:59:04,388 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-19 17:59:04,389 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-19 17:59:04,389 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-19 17:59:04,389 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-19 17:59:04,390 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-19 17:59:04,390 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-19 17:59:04,390 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-19 17:59:04,390 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-19 17:59:04,390 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-19 17:59:04,390 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-19 17:59:04,390 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-19 17:59:04,391 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-19 17:59:04,391 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-19 17:59:04,391 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-19 17:59:04,391 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-19 17:59:04,391 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-19 17:59:04,391 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-19 17:59:04,391 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-19 17:59:04,392 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-19 17:59:04,392 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-19 17:59:04,394 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-19 17:59:04,395 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-19 17:59:04,395 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-19 17:59:04,396 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-19 17:59:04,396 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-19 17:59:04,396 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-19 17:59:04,396 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-19 17:59:04,397 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-19 17:59:04,397 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-19 17:59:04,397 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-19 17:59:04,397 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-19 17:59:04,398 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-19 17:59:04,398 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-19 17:59:04,398 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-19 17:59:04,398 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-19 17:59:04,399 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-19 17:59:04,399 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-19 17:59:04,399 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-19 17:59:04,399 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-19 17:59:04,399 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-19 17:59:04,400 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-19 17:59:04,400 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-19 17:59:04,401 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-19 17:59:04,401 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-19 17:59:04,401 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-19 17:59:04,401 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-19 17:59:04,401 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-19 17:59:04,402 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-19 17:59:04,402 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-19 17:59:04,402 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-19 17:59:04,402 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-19 17:59:04,402 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-19 17:59:04,403 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-19 17:59:04,403 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-19 17:59:04,403 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-19 17:59:04,403 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-19 17:59:04,403 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-19 17:59:04,404 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-19 17:59:04,404 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-19 17:59:04,404 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-19 17:59:04,404 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-19 17:59:04,404 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-19 17:59:04,405 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-19 17:59:04,405 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-19 17:59:04,405 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-19 17:59:04,405 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-19 17:59:04,405 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-19 17:59:04,405 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-19 17:59:04,405 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-19 17:59:04,405 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-19 17:59:04,406 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-19 17:59:04,406 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-19 17:59:04,406 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-19 17:59:04,406 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-19 17:59:04,406 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-19 17:59:04,406 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-19 17:59:04,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-19 17:59:04,406 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-19 17:59:04,406 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-19 17:59:04,407 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-19 17:59:04,407 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-19 17:59:04,407 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-19 17:59:04,407 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-19 17:59:04,407 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-19 17:59:04,407 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-19 17:59:04,407 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-19 17:59:04,407 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-19 17:59:04,408 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-19 17:59:04,408 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-19 17:59:04,408 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-19 17:59:04,408 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-19 17:59:04,408 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-19 17:59:04,409 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-19 17:59:04,409 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-19 17:59:04,409 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-19 17:59:04,410 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-19 17:59:04,410 INFO L130 BoogieDeclarations]: Found specification of procedure is_relaxed_prefix [2020-10-19 17:59:04,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 17:59:04,410 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 17:59:04,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-19 17:59:04,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 17:59:04,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 17:59:04,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 17:59:04,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 17:59:04,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 17:59:05,123 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 17:59:05,123 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-19 17:59:05,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 05:59:05 BoogieIcfgContainer [2020-10-19 17:59:05,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 17:59:05,127 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 17:59:05,127 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 17:59:05,131 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 17:59:05,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 05:59:03" (1/3) ... [2020-10-19 17:59:05,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37876b01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 05:59:05, skipping insertion in model container [2020-10-19 17:59:05,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:59:04" (2/3) ... [2020-10-19 17:59:05,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37876b01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 05:59:05, skipping insertion in model container [2020-10-19 17:59:05,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 05:59:05" (3/3) ... [2020-10-19 17:59:05,135 INFO L111 eAbstractionObserver]: Analyzing ICFG relax-1.i [2020-10-19 17:59:05,148 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 17:59:05,156 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 32 error locations. [2020-10-19 17:59:05,171 INFO L253 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2020-10-19 17:59:05,193 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 17:59:05,194 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 17:59:05,194 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 17:59:05,194 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 17:59:05,194 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 17:59:05,195 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 17:59:05,195 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 17:59:05,195 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 17:59:05,216 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states. [2020-10-19 17:59:05,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-19 17:59:05,227 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:59:05,228 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:59:05,229 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, is_relaxed_prefixErr2REQUIRES_VIOLATION, is_relaxed_prefixErr3REQUIRES_VIOLATION, is_relaxed_prefixErr0REQUIRES_VIOLATION, is_relaxed_prefixErr1REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr21ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr20ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr26ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE]=== [2020-10-19 17:59:05,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:59:05,236 INFO L82 PathProgramCache]: Analyzing trace with hash -616614522, now seen corresponding path program 1 times [2020-10-19 17:59:05,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 17:59:05,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974867455] [2020-10-19 17:59:05,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 17:59:05,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:59:05,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 17:59:05,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:59:05,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:59:05,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974867455] [2020-10-19 17:59:05,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:59:05,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 17:59:05,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947935206] [2020-10-19 17:59:05,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 17:59:05,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 17:59:05,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 17:59:05,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 17:59:05,583 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 6 states. [2020-10-19 17:59:06,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:59:06,047 INFO L93 Difference]: Finished difference Result 98 states and 115 transitions. [2020-10-19 17:59:06,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 17:59:06,049 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-10-19 17:59:06,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:59:06,061 INFO L225 Difference]: With dead ends: 98 [2020-10-19 17:59:06,062 INFO L226 Difference]: Without dead ends: 95 [2020-10-19 17:59:06,064 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-19 17:59:06,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-10-19 17:59:06,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2020-10-19 17:59:06,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-10-19 17:59:06,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 112 transitions. [2020-10-19 17:59:06,125 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 112 transitions. Word has length 11 [2020-10-19 17:59:06,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:59:06,126 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 112 transitions. [2020-10-19 17:59:06,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 17:59:06,127 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 112 transitions. [2020-10-19 17:59:06,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-19 17:59:06,128 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:59:06,128 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:59:06,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 17:59:06,129 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, is_relaxed_prefixErr2REQUIRES_VIOLATION, is_relaxed_prefixErr3REQUIRES_VIOLATION, is_relaxed_prefixErr0REQUIRES_VIOLATION, is_relaxed_prefixErr1REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr21ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr20ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr26ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE]=== [2020-10-19 17:59:06,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:59:06,130 INFO L82 PathProgramCache]: Analyzing trace with hash -616614521, now seen corresponding path program 1 times [2020-10-19 17:59:06,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 17:59:06,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265876636] [2020-10-19 17:59:06,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 17:59:06,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 17:59:06,191 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 17:59:06,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 17:59:06,230 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 17:59:06,263 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 17:59:06,264 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 17:59:06,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 17:59:06,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 05:59:06 BoogieIcfgContainer [2020-10-19 17:59:06,299 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 17:59:06,300 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 17:59:06,300 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 17:59:06,301 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 17:59:06,302 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 05:59:05" (3/4) ... [2020-10-19 17:59:06,305 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-19 17:59:06,360 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 17:59:06,360 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 17:59:06,363 INFO L168 Benchmark]: Toolchain (without parser) took 2886.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 943.9 MB in the beginning and 969.6 MB in the end (delta: -25.8 MB). Peak memory consumption was 131.0 MB. Max. memory is 11.5 GB. [2020-10-19 17:59:06,364 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 17:59:06,365 INFO L168 Benchmark]: CACSL2BoogieTranslator took 703.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 943.9 MB in the beginning and 1.1 GB in the end (delta: -186.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2020-10-19 17:59:06,366 INFO L168 Benchmark]: Boogie Preprocessor took 127.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-10-19 17:59:06,367 INFO L168 Benchmark]: RCFGBuilder took 812.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 58.5 MB). Peak memory consumption was 58.5 MB. Max. memory is 11.5 GB. [2020-10-19 17:59:06,368 INFO L168 Benchmark]: TraceAbstraction took 1172.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 976.4 MB in the end (delta: 88.8 MB). Peak memory consumption was 88.8 MB. Max. memory is 11.5 GB. [2020-10-19 17:59:06,369 INFO L168 Benchmark]: Witness Printer took 60.31 ms. Allocated memory is still 1.2 GB. Free memory was 976.4 MB in the beginning and 969.6 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-10-19 17:59:06,373 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 703.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 943.9 MB in the beginning and 1.1 GB in the end (delta: -186.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 127.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 812.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 58.5 MB). Peak memory consumption was 58.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1172.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 976.4 MB in the end (delta: 88.8 MB). Peak memory consumption was 88.8 MB. Max. memory is 11.5 GB. * Witness Printer took 60.31 ms. Allocated memory is still 1.2 GB. Free memory was 976.4 MB in the beginning and 969.6 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 584]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L599] unsigned long pat_len = __VERIFIER_nondet_ulong(), a_len = __VERIFIER_nondet_ulong(); [L599] unsigned long pat_len = __VERIFIER_nondet_ulong(), a_len = __VERIFIER_nondet_ulong(); [L600] int *pat=malloc(sizeof(int)*pat_len); [L601] int *a=malloc(sizeof(int)*a_len); VAL [a={1:0}, a_len=-2, malloc(sizeof(int)*a_len)={1:0}, malloc(sizeof(int)*pat_len)={-1:0}, pat={-1:0}, pat_len=-4294967295] [L602] CALL is_relaxed_prefix(pat, pat_len, a, a_len) VAL [\old(a_length)=4294967294, \old(pat_length)=1, a={1:0}, pat={-1:0}] [L579] COND FALSE !(pat_length>a_length+1) [L581] int shift=0; [L582] int i=0; VAL [\old(a_length)=4294967294, \old(pat_length)=1, a={1:0}, a={1:0}, a_length=4294967294, i=0, pat={-1:0}, pat={-1:0}, pat_length=1, shift=0] [L582] COND TRUE i