/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/list-ext-properties/simple-ext.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 15:48:15,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 15:48:15,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 15:48:15,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 15:48:15,251 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 15:48:15,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 15:48:15,262 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 15:48:15,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 15:48:15,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 15:48:15,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 15:48:15,272 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 15:48:15,272 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 15:48:15,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 15:48:15,276 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 15:48:15,278 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 15:48:15,279 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 15:48:15,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 15:48:15,282 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 15:48:15,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 15:48:15,291 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 15:48:15,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 15:48:15,295 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 15:48:15,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 15:48:15,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 15:48:15,309 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 15:48:15,313 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 15:48:15,313 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 15:48:15,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 15:48:15,315 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 15:48:15,316 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 15:48:15,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 15:48:15,320 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 15:48:15,321 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 15:48:15,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 15:48:15,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 15:48:15,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 15:48:15,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 15:48:15,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 15:48:15,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 15:48:15,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 15:48:15,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 15:48:15,330 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 15:48:15,370 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 15:48:15,371 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 15:48:15,373 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 15:48:15,373 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 15:48:15,373 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 15:48:15,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 15:48:15,374 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 15:48:15,374 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 15:48:15,375 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 15:48:15,375 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 15:48:15,376 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 15:48:15,376 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 15:48:15,376 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 15:48:15,377 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 15:48:15,377 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 15:48:15,377 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 15:48:15,377 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 15:48:15,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 15:48:15,378 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 15:48:15,378 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 15:48:15,378 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 15:48:15,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:48:15,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 15:48:15,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 15:48:15,379 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 15:48:15,379 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 15:48:15,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 15:48:15,380 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 15:48:15,380 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 15:48:15,380 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 15:48:15,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 15:48:15,693 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 15:48:15,697 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 15:48:15,699 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 15:48:15,699 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 15:48:15,700 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/simple-ext.i [2020-10-12 15:48:15,761 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/61078f535/9596d05dbe8d4cb19f816dde76b035f8/FLAGcd6660b21 [2020-10-12 15:48:16,317 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 15:48:16,317 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-ext-properties/simple-ext.i [2020-10-12 15:48:16,330 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/61078f535/9596d05dbe8d4cb19f816dde76b035f8/FLAGcd6660b21 [2020-10-12 15:48:16,586 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/61078f535/9596d05dbe8d4cb19f816dde76b035f8 [2020-10-12 15:48:16,595 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 15:48:16,596 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 15:48:16,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 15:48:16,598 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 15:48:16,601 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 15:48:16,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:48:16" (1/1) ... [2020-10-12 15:48:16,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4947e177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:48:16, skipping insertion in model container [2020-10-12 15:48:16,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:48:16" (1/1) ... [2020-10-12 15:48:16,614 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 15:48:16,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 15:48:17,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:48:17,069 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 15:48:17,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:48:17,190 INFO L208 MainTranslator]: Completed translation [2020-10-12 15:48:17,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:48:17 WrapperNode [2020-10-12 15:48:17,191 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 15:48:17,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 15:48:17,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 15:48:17,192 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 15:48:17,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:48:17" (1/1) ... [2020-10-12 15:48:17,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:48:17" (1/1) ... [2020-10-12 15:48:17,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:48:17" (1/1) ... [2020-10-12 15:48:17,227 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:48:17" (1/1) ... [2020-10-12 15:48:17,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:48:17" (1/1) ... [2020-10-12 15:48:17,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:48:17" (1/1) ... [2020-10-12 15:48:17,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:48:17" (1/1) ... [2020-10-12 15:48:17,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 15:48:17,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 15:48:17,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 15:48:17,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 15:48:17,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:48:17" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-12 15:48:17,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 15:48:17,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 15:48:17,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-12 15:48:17,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-12 15:48:17,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-12 15:48:17,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-12 15:48:17,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-12 15:48:17,341 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-10-12 15:48:17,342 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 15:48:17,342 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 15:48:17,342 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 15:48:17,342 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-12 15:48:17,342 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-12 15:48:17,343 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-12 15:48:17,343 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-12 15:48:17,344 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-12 15:48:17,344 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-12 15:48:17,344 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-12 15:48:17,344 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-12 15:48:17,344 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-12 15:48:17,345 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-12 15:48:17,345 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-12 15:48:17,346 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-12 15:48:17,346 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-12 15:48:17,347 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-12 15:48:17,348 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-12 15:48:17,348 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-12 15:48:17,348 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-12 15:48:17,348 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-12 15:48:17,349 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-12 15:48:17,349 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-12 15:48:17,349 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-12 15:48:17,349 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-12 15:48:17,349 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-12 15:48:17,349 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-12 15:48:17,350 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-12 15:48:17,350 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-12 15:48:17,350 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-12 15:48:17,352 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-12 15:48:17,353 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-12 15:48:17,353 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-12 15:48:17,353 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-12 15:48:17,353 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-12 15:48:17,353 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-12 15:48:17,353 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-12 15:48:17,353 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-12 15:48:17,354 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-12 15:48:17,354 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-12 15:48:17,354 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-12 15:48:17,354 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-12 15:48:17,354 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-12 15:48:17,354 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-12 15:48:17,355 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-12 15:48:17,355 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-12 15:48:17,355 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-12 15:48:17,355 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-12 15:48:17,355 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-12 15:48:17,355 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-12 15:48:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-12 15:48:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-12 15:48:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-12 15:48:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-12 15:48:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-12 15:48:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-12 15:48:17,357 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-12 15:48:17,357 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-12 15:48:17,357 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 15:48:17,357 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-12 15:48:17,357 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-12 15:48:17,357 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-12 15:48:17,357 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-12 15:48:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-12 15:48:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-12 15:48:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-12 15:48:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 15:48:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-12 15:48:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-12 15:48:17,359 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-12 15:48:17,359 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 15:48:17,359 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-12 15:48:17,359 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-12 15:48:17,359 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-12 15:48:17,359 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-12 15:48:17,360 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-12 15:48:17,360 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-12 15:48:17,360 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-12 15:48:17,360 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-12 15:48:17,360 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-12 15:48:17,360 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-12 15:48:17,360 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-12 15:48:17,361 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-12 15:48:17,361 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-12 15:48:17,361 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-12 15:48:17,361 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-12 15:48:17,361 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-12 15:48:17,361 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-12 15:48:17,361 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-12 15:48:17,362 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-12 15:48:17,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-12 15:48:17,362 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-12 15:48:17,362 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-12 15:48:17,362 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-12 15:48:17,362 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-12 15:48:17,362 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-12 15:48:17,363 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-12 15:48:17,363 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-12 15:48:17,363 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-12 15:48:17,363 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-12 15:48:17,363 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-12 15:48:17,363 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-12 15:48:17,363 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-12 15:48:17,364 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-12 15:48:17,364 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-12 15:48:17,364 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-12 15:48:17,364 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-12 15:48:17,364 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-12 15:48:17,364 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-12 15:48:17,365 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-12 15:48:17,365 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-10-12 15:48:17,365 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 15:48:17,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 15:48:17,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 15:48:17,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-12 15:48:17,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-12 15:48:17,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 15:48:17,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 15:48:17,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 15:48:17,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 15:48:17,695 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-10-12 15:48:17,851 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 15:48:17,851 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-12 15:48:17,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:48:17 BoogieIcfgContainer [2020-10-12 15:48:17,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 15:48:17,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 15:48:17,858 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 15:48:17,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 15:48:17,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 03:48:16" (1/3) ... [2020-10-12 15:48:17,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d06a98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:48:17, skipping insertion in model container [2020-10-12 15:48:17,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:48:17" (2/3) ... [2020-10-12 15:48:17,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d06a98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:48:17, skipping insertion in model container [2020-10-12 15:48:17,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:48:17" (3/3) ... [2020-10-12 15:48:17,866 INFO L109 eAbstractionObserver]: Analyzing ICFG simple-ext.i [2020-10-12 15:48:17,877 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 15:48:17,885 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 15:48:17,901 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 15:48:17,926 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 15:48:17,926 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 15:48:17,926 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 15:48:17,927 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 15:48:17,927 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 15:48:17,927 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 15:48:17,927 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 15:48:17,928 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 15:48:17,948 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-10-12 15:48:17,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-12 15:48:17,955 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:48:17,957 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:48:17,957 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:48:17,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:48:17,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1015793902, now seen corresponding path program 1 times [2020-10-12 15:48:17,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:48:17,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1546962260] [2020-10-12 15:48:17,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:48:18,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:48:18,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:48:18,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:48:18,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-12 15:48:18,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:48:18,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-12 15:48:18,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:48:18,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:48:18,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-12 15:48:18,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:48:18,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 15:48:18,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:48:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:48:18,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:48:18,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:48:18,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:48:18,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:48:18,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 15:48:18,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:48:18,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:48:18,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:48:18,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:48:18,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:48:18,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:48:18,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1546962260] [2020-10-12 15:48:18,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:48:18,299 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 15:48:18,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107430361] [2020-10-12 15:48:18,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-12 15:48:18,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:48:18,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-12 15:48:18,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-12 15:48:18,329 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 3 states. [2020-10-12 15:48:18,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:48:18,465 INFO L93 Difference]: Finished difference Result 43 states and 56 transitions. [2020-10-12 15:48:18,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-12 15:48:18,467 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-12 15:48:18,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:48:18,476 INFO L225 Difference]: With dead ends: 43 [2020-10-12 15:48:18,477 INFO L226 Difference]: Without dead ends: 19 [2020-10-12 15:48:18,482 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-12 15:48:18,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-12 15:48:18,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-12 15:48:18,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-12 15:48:18,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2020-10-12 15:48:18,530 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 13 [2020-10-12 15:48:18,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:48:18,531 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2020-10-12 15:48:18,531 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-12 15:48:18,532 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2020-10-12 15:48:18,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-12 15:48:18,534 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:48:18,534 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:48:18,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 15:48:18,535 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:48:18,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:48:18,535 INFO L82 PathProgramCache]: Analyzing trace with hash -831528833, now seen corresponding path program 1 times [2020-10-12 15:48:18,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:48:18,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1794618648] [2020-10-12 15:48:18,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:48:18,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-12 15:48:18,607 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-12 15:48:18,607 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 15:48:18,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 15:48:18,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 03:48:18 BoogieIcfgContainer [2020-10-12 15:48:18,633 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 15:48:18,635 INFO L168 Benchmark]: Toolchain (without parser) took 2038.53 ms. Allocated memory was 147.3 MB in the beginning and 235.9 MB in the end (delta: 88.6 MB). Free memory was 102.5 MB in the beginning and 194.7 MB in the end (delta: -92.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 15:48:18,637 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.5 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-12 15:48:18,638 INFO L168 Benchmark]: CACSL2BoogieTranslator took 594.46 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 102.5 MB in the beginning and 170.0 MB in the end (delta: -67.5 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2020-10-12 15:48:18,639 INFO L168 Benchmark]: Boogie Preprocessor took 65.26 ms. Allocated memory is still 204.5 MB. Free memory was 170.0 MB in the beginning and 167.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-10-12 15:48:18,639 INFO L168 Benchmark]: RCFGBuilder took 598.77 ms. Allocated memory is still 204.5 MB. Free memory was 167.1 MB in the beginning and 122.9 MB in the end (delta: 44.3 MB). Peak memory consumption was 44.3 MB. Max. memory is 7.1 GB. [2020-10-12 15:48:18,640 INFO L168 Benchmark]: TraceAbstraction took 775.07 ms. Allocated memory was 204.5 MB in the beginning and 235.9 MB in the end (delta: 31.5 MB). Free memory was 122.9 MB in the beginning and 194.7 MB in the end (delta: -71.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 15:48:18,644 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.5 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 594.46 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 102.5 MB in the beginning and 170.0 MB in the end (delta: -67.5 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 65.26 ms. Allocated memory is still 204.5 MB. Free memory was 170.0 MB in the beginning and 167.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 598.77 ms. Allocated memory is still 204.5 MB. Free memory was 167.1 MB in the beginning and 122.9 MB in the end (delta: 44.3 MB). Peak memory consumption was 44.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 775.07 ms. Allocated memory was 204.5 MB in the beginning and 235.9 MB in the end (delta: 31.5 MB). Free memory was 122.9 MB in the beginning and 194.7 MB in the end (delta: -71.9 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 540]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L521] List a = (List) malloc(sizeof(struct node)); [L522] COND FALSE !(a == 0) [L523] List t; [L524] List p = a; [L525] int i = 0; [L526] i < 30 && __VERIFIER_nondet_int() [L526] i < 30 && __VERIFIER_nondet_int() [L526] COND FALSE !(i < 30 && __VERIFIER_nondet_int()) [L534] p->h = i [L535] p->n = 0 [L536] p = a [L537] i = 0 [L538] COND TRUE p!=0 [L539] EXPR p->h [L539] COND TRUE p->h != 1 [L540] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 33 SDtfs, 2 SDslu, 4 SDs, 0 SdLazy, 27 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 252 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...