/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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 language data_model -i ../../../trunk/examples/svcomp/list-ext-properties/simple-ext.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 09:24:09,453 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 09:24:09,455 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 09:24:09,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 09:24:09,516 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 09:24:09,522 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 09:24:09,525 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 09:24:09,529 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 09:24:09,532 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 09:24:09,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 09:24:09,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 09:24:09,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 09:24:09,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 09:24:09,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 09:24:09,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 09:24:09,550 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 09:24:09,551 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 09:24:09,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 09:24:09,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 09:24:09,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 09:24:09,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 09:24:09,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 09:24:09,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 09:24:09,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 09:24:09,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 09:24:09,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 09:24:09,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 09:24:09,614 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 09:24:09,615 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 09:24:09,616 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 09:24:09,616 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 09:24:09,629 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 09:24:09,632 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 09:24:09,636 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 09:24:09,637 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 09:24:09,637 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 09:24:09,642 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 09:24:09,643 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 09:24:09,643 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 09:24:09,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 09:24:09,645 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 09:24:09,653 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 [2020-10-29 09:24:09,708 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 09:24:09,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 09:24:09,713 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 09:24:09,713 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 09:24:09,714 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 09:24:09,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 09:24:09,714 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 09:24:09,714 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 09:24:09,715 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 09:24:09,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 09:24:09,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 09:24:09,716 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 09:24:09,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 09:24:09,717 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 09:24:09,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 09:24:09,717 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 09:24:09,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 09:24:09,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 09:24:09,718 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 09:24:09,718 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 09:24:09,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 09:24:09,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 09:24:09,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 09:24:09,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 09:24:09,719 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 09:24:09,719 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 09:24:09,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 09:24:09,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 09:24:09,720 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 09:24:09,720 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 09:24:10,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 09:24:10,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 09:24:10,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 09:24:10,133 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 09:24:10,134 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 09:24:10,135 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/simple-ext.i [2020-10-29 09:24:10,227 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e72e21bb1/35adb82342274bb9ace43f345324e476/FLAG0b57f414d [2020-10-29 09:24:11,042 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 09:24:11,043 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-ext-properties/simple-ext.i [2020-10-29 09:24:11,058 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e72e21bb1/35adb82342274bb9ace43f345324e476/FLAG0b57f414d [2020-10-29 09:24:11,293 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e72e21bb1/35adb82342274bb9ace43f345324e476 [2020-10-29 09:24:11,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 09:24:11,303 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 09:24:11,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 09:24:11,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 09:24:11,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 09:24:11,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:24:11" (1/1) ... [2020-10-29 09:24:11,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48a15049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:24:11, skipping insertion in model container [2020-10-29 09:24:11,314 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:24:11" (1/1) ... [2020-10-29 09:24:11,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 09:24:11,360 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 09:24:11,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:24:11,654 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 09:24:11,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:24:11,854 INFO L208 MainTranslator]: Completed translation [2020-10-29 09:24:11,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:24:11 WrapperNode [2020-10-29 09:24:11,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 09:24:11,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 09:24:11,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 09:24:11,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 09:24:11,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:24:11" (1/1) ... [2020-10-29 09:24:11,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:24:11" (1/1) ... [2020-10-29 09:24:11,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:24:11" (1/1) ... [2020-10-29 09:24:11,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:24:11" (1/1) ... [2020-10-29 09:24:11,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:24:11" (1/1) ... [2020-10-29 09:24:11,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:24:11" (1/1) ... [2020-10-29 09:24:11,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:24:11" (1/1) ... [2020-10-29 09:24:11,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 09:24:11,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 09:24:11,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 09:24:11,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 09:24:11,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:24:11" (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 [2020-10-29 09:24:12,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 09:24:12,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 09:24:12,020 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 09:24:12,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-29 09:24:12,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-29 09:24:12,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-29 09:24:12,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-29 09:24:12,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-29 09:24:12,022 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-10-29 09:24:12,022 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 09:24:12,022 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 09:24:12,022 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 09:24:12,022 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-29 09:24:12,022 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-29 09:24:12,023 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 09:24:12,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 09:24:12,023 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 09:24:12,023 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-29 09:24:12,023 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-29 09:24:12,023 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-29 09:24:12,024 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-29 09:24:12,024 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-29 09:24:12,024 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-29 09:24:12,024 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-29 09:24:12,024 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-29 09:24:12,024 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-29 09:24:12,025 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-29 09:24:12,025 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-29 09:24:12,025 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-29 09:24:12,025 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-29 09:24:12,025 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-29 09:24:12,025 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-29 09:24:12,025 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-29 09:24:12,026 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-29 09:24:12,026 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-29 09:24:12,026 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-29 09:24:12,026 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-29 09:24:12,026 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-29 09:24:12,026 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-29 09:24:12,027 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-29 09:24:12,027 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-29 09:24:12,027 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-29 09:24:12,027 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-29 09:24:12,027 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-29 09:24:12,027 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-29 09:24:12,027 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-29 09:24:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-29 09:24:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-29 09:24:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-29 09:24:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-29 09:24:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-29 09:24:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-29 09:24:12,029 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-29 09:24:12,029 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-29 09:24:12,029 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-29 09:24:12,029 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-29 09:24:12,029 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-29 09:24:12,029 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-29 09:24:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-29 09:24:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-29 09:24:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-29 09:24:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-29 09:24:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-29 09:24:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-29 09:24:12,031 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-29 09:24:12,031 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-29 09:24:12,031 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-29 09:24:12,031 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-29 09:24:12,031 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-29 09:24:12,031 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-29 09:24:12,031 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-29 09:24:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-29 09:24:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 09:24:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-29 09:24:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-29 09:24:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-29 09:24:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-29 09:24:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-29 09:24:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-29 09:24:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-29 09:24:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-29 09:24:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-29 09:24:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-29 09:24:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 09:24:12,034 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-29 09:24:12,034 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-29 09:24:12,034 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-29 09:24:12,034 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-29 09:24:12,034 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-29 09:24:12,034 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-29 09:24:12,035 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-29 09:24:12,035 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-29 09:24:12,035 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-29 09:24:12,035 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-29 09:24:12,035 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-29 09:24:12,035 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-29 09:24:12,035 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-29 09:24:12,036 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-29 09:24:12,036 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-29 09:24:12,036 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-29 09:24:12,036 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-29 09:24:12,036 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-29 09:24:12,036 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-29 09:24:12,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-29 09:24:12,037 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-29 09:24:12,037 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-29 09:24:12,037 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-29 09:24:12,037 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-29 09:24:12,037 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-29 09:24:12,038 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-29 09:24:12,038 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-29 09:24:12,038 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-29 09:24:12,038 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-29 09:24:12,038 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-29 09:24:12,038 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-29 09:24:12,039 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-29 09:24:12,039 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-29 09:24:12,039 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-29 09:24:12,039 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-29 09:24:12,039 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-29 09:24:12,039 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-29 09:24:12,040 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-29 09:24:12,040 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-29 09:24:12,040 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-10-29 09:24:12,040 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 09:24:12,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 09:24:12,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 09:24:12,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-29 09:24:12,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-29 09:24:12,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 09:24:12,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 09:24:12,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 09:24:12,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 09:24:12,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 09:24:12,480 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-10-29 09:24:12,654 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 09:24:12,654 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-29 09:24:12,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:24:12 BoogieIcfgContainer [2020-10-29 09:24:12,656 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 09:24:12,658 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 09:24:12,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 09:24:12,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 09:24:12,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 09:24:11" (1/3) ... [2020-10-29 09:24:12,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55654620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:24:12, skipping insertion in model container [2020-10-29 09:24:12,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:24:11" (2/3) ... [2020-10-29 09:24:12,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55654620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:24:12, skipping insertion in model container [2020-10-29 09:24:12,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:24:12" (3/3) ... [2020-10-29 09:24:12,666 INFO L111 eAbstractionObserver]: Analyzing ICFG simple-ext.i [2020-10-29 09:24:12,678 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 09:24:12,684 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 09:24:12,698 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 09:24:12,728 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 09:24:12,728 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 09:24:12,728 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 09:24:12,728 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 09:24:12,729 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 09:24:12,729 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 09:24:12,729 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 09:24:12,729 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 09:24:12,748 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-10-29 09:24:12,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-29 09:24:12,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:24:12,755 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:24:12,756 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:24:12,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:24:12,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1830377187, now seen corresponding path program 1 times [2020-10-29 09:24:12,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:24:12,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [757702829] [2020-10-29 09:24:12,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:24:12,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:24:12,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:24:13,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:24:13,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 09:24:13,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:24:13,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-29 09:24:13,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:24:13,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:24:13,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:24:13,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 09:24:13,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:24:13,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 09:24:13,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:24:13,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:24:13,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:24:13,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:24:13,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:24:13,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:24:13,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 09:24:13,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:24:13,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:24:13,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:24:13,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:24:13,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:24:13,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:24:13,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:24:13,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [757702829] [2020-10-29 09:24:13,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:24:13,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 09:24:13,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223396452] [2020-10-29 09:24:13,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-29 09:24:13,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:24:13,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-29 09:24:13,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-29 09:24:13,246 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 3 states. [2020-10-29 09:24:13,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:24:13,357 INFO L93 Difference]: Finished difference Result 50 states and 66 transitions. [2020-10-29 09:24:13,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-29 09:24:13,359 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-10-29 09:24:13,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:24:13,368 INFO L225 Difference]: With dead ends: 50 [2020-10-29 09:24:13,368 INFO L226 Difference]: Without dead ends: 21 [2020-10-29 09:24:13,371 INFO L677 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 [2020-10-29 09:24:13,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-29 09:24:13,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-29 09:24:13,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-29 09:24:13,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2020-10-29 09:24:13,415 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 15 [2020-10-29 09:24:13,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:24:13,415 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2020-10-29 09:24:13,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-29 09:24:13,416 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2020-10-29 09:24:13,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-29 09:24:13,417 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:24:13,417 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:24:13,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 09:24:13,417 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:24:13,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:24:13,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1433309902, now seen corresponding path program 1 times [2020-10-29 09:24:13,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:24:13,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1319447681] [2020-10-29 09:24:13,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:24:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 09:24:13,453 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 09:24:13,453 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 09:24:13,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 09:24:13,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 09:24:13 BoogieIcfgContainer [2020-10-29 09:24:13,478 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 09:24:13,481 INFO L168 Benchmark]: Toolchain (without parser) took 2181.79 ms. Allocated memory is still 157.3 MB. Free memory was 137.7 MB in the beginning and 92.6 MB in the end (delta: 45.1 MB). Peak memory consumption was 44.9 MB. Max. memory is 8.0 GB. [2020-10-29 09:24:13,482 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 157.3 MB. Free memory is still 129.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 09:24:13,483 INFO L168 Benchmark]: CACSL2BoogieTranslator took 551.40 ms. Allocated memory is still 157.3 MB. Free memory was 137.0 MB in the beginning and 129.0 MB in the end (delta: 8.0 MB). Peak memory consumption was 14.6 MB. Max. memory is 8.0 GB. [2020-10-29 09:24:13,484 INFO L168 Benchmark]: Boogie Preprocessor took 78.85 ms. Allocated memory is still 157.3 MB. Free memory was 129.0 MB in the beginning and 126.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-29 09:24:13,485 INFO L168 Benchmark]: RCFGBuilder took 719.93 ms. Allocated memory is still 157.3 MB. Free memory was 126.2 MB in the beginning and 134.0 MB in the end (delta: -7.9 MB). Peak memory consumption was 40.7 MB. Max. memory is 8.0 GB. [2020-10-29 09:24:13,486 INFO L168 Benchmark]: TraceAbstraction took 819.69 ms. Allocated memory is still 157.3 MB. Free memory was 134.0 MB in the beginning and 92.6 MB in the end (delta: 41.4 MB). Peak memory consumption was 40.9 MB. Max. memory is 8.0 GB. [2020-10-29 09:24:13,490 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 157.3 MB. Free memory is still 129.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 551.40 ms. Allocated memory is still 157.3 MB. Free memory was 137.0 MB in the beginning and 129.0 MB in the end (delta: 8.0 MB). Peak memory consumption was 14.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 78.85 ms. Allocated memory is still 157.3 MB. Free memory was 129.0 MB in the beginning and 126.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 719.93 ms. Allocated memory is still 157.3 MB. Free memory was 126.2 MB in the beginning and 134.0 MB in the end (delta: -7.9 MB). Peak memory consumption was 40.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 819.69 ms. Allocated memory is still 157.3 MB. Free memory was 134.0 MB in the beginning and 92.6 MB in the end (delta: 41.4 MB). Peak memory consumption was 40.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 12]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L532] List a = (List) malloc(sizeof(struct node)); [L533] COND FALSE !(a == 0) [L534] List t; [L535] List p = a; [L536] int i = 0; [L537] i < 30 && __VERIFIER_nondet_int() [L537] i < 30 && __VERIFIER_nondet_int() [L537] COND FALSE !(i < 30 && __VERIFIER_nondet_int()) [L545] p->h = i [L546] p->n = 0 [L547] p = a [L548] i = 0 [L549] COND TRUE p!=0 [L550] EXPR p->h [L550] COND TRUE p->h != 1 [L551] CALL reach_error() [L12] COND FALSE !(0) [L12] __assert_fail ("0", "simple-ext.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 35 SDtfs, 4 SDslu, 4 SDs, 0 SdLazy, 26 SolverSat, 4 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=35occurred 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, 0.3s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 532 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...