/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 SingleStatement --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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/list-simple/dll2n_update_all_reverse.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:24:33,197 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:24:33,201 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:24:33,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:24:33,247 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:24:33,258 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:24:33,261 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:24:33,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:24:33,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:24:33,272 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:24:33,273 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:24:33,274 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:24:33,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:24:33,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:24:33,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:24:33,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:24:33,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:24:33,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:24:33,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:24:33,296 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:24:33,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:24:33,300 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:24:33,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:24:33,302 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:24:33,305 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:24:33,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:24:33,306 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:24:33,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:24:33,309 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:24:33,310 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:24:33,310 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:24:33,311 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:24:33,312 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:24:33,313 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:24:33,314 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:24:33,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:24:33,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:24:33,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:24:33,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:24:33,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:24:33,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:24:33,319 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 [2020-09-24 19:24:33,370 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:24:33,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:24:33,373 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:24:33,373 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:24:33,373 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:24:33,373 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:24:33,374 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:24:33,374 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:24:33,374 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:24:33,375 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:24:33,376 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:24:33,376 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:24:33,376 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:24:33,377 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:24:33,377 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:24:33,377 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:24:33,377 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:24:33,377 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:24:33,378 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:24:33,378 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:24:33,378 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:24:33,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:24:33,378 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:24:33,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:24:33,379 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:24:33,379 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:24:33,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:24:33,379 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:24:33,380 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:24:33,380 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 -> SingleStatement 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=1000;interpolation-heuristic=SMALLEST;log-additional-information=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=1000;interpolation-heuristic=SMALLEST;log-additional-information=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=1000;interpolation-heuristic=SMALLEST;log-additional-information=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=1000;interpolation-heuristic=SMALLEST;log-additional-information=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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:24:33,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:24:33,911 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:24:33,917 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:24:33,919 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:24:33,920 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:24:33,921 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2n_update_all_reverse.i [2020-09-24 19:24:34,002 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7c80ac7dc/511301b86c07486dad38df9b2451b8f1/FLAG2be702c49 [2020-09-24 19:24:34,590 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:24:34,591 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-simple/dll2n_update_all_reverse.i [2020-09-24 19:24:34,626 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7c80ac7dc/511301b86c07486dad38df9b2451b8f1/FLAG2be702c49 [2020-09-24 19:24:34,851 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7c80ac7dc/511301b86c07486dad38df9b2451b8f1 [2020-09-24 19:24:34,866 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:24:34,872 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:24:34,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:24:34,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:24:34,878 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:24:34,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:24:34" (1/1) ... [2020-09-24 19:24:34,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b861da5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:24:34, skipping insertion in model container [2020-09-24 19:24:34,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:24:34" (1/1) ... [2020-09-24 19:24:34,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:24:34,958 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:24:35,488 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:24:35,502 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:24:35,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:24:35,618 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:24:35,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:24:35 WrapperNode [2020-09-24 19:24:35,619 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:24:35,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:24:35,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:24:35,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:24:35,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:24:35" (1/1) ... [2020-09-24 19:24:35,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:24:35" (1/1) ... [2020-09-24 19:24:35,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:24:35" (1/1) ... [2020-09-24 19:24:35,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:24:35" (1/1) ... [2020-09-24 19:24:35,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:24:35" (1/1) ... [2020-09-24 19:24:35,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:24:35" (1/1) ... [2020-09-24 19:24:35,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:24:35" (1/1) ... [2020-09-24 19:24:35,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:24:35,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:24:35,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:24:35,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:24:35,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:24:35" (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 [2020-09-24 19:24:35,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:24:35,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:24:35,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-24 19:24:35,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-24 19:24:35,787 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-09-24 19:24:35,788 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2020-09-24 19:24:35,788 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2020-09-24 19:24:35,788 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy [2020-09-24 19:24:35,788 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_get_data_at [2020-09-24 19:24:35,788 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_update_at [2020-09-24 19:24:35,789 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:24:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:24:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-24 19:24:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-24 19:24:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-24 19:24:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-24 19:24:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-24 19:24:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-24 19:24:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-24 19:24:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-24 19:24:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-24 19:24:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-24 19:24:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-24 19:24:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-24 19:24:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-24 19:24:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-24 19:24:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-24 19:24:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-24 19:24:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-24 19:24:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-24 19:24:35,793 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-24 19:24:35,793 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-24 19:24:35,793 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-24 19:24:35,793 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-24 19:24:35,793 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-24 19:24:35,794 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-24 19:24:35,794 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-24 19:24:35,794 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-24 19:24:35,794 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-24 19:24:35,794 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-24 19:24:35,794 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-24 19:24:35,795 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-24 19:24:35,795 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-24 19:24:35,795 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-24 19:24:35,795 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-24 19:24:35,795 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-24 19:24:35,795 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-24 19:24:35,796 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-24 19:24:35,796 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-24 19:24:35,796 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-24 19:24:35,796 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-24 19:24:35,796 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-24 19:24:35,797 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-24 19:24:35,797 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-24 19:24:35,797 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-24 19:24:35,797 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-24 19:24:35,797 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-24 19:24:35,797 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-24 19:24:35,798 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-24 19:24:35,798 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-24 19:24:35,798 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-24 19:24:35,798 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-24 19:24:35,798 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-24 19:24:35,798 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-24 19:24:35,799 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:24:35,799 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 19:24:35,799 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-24 19:24:35,799 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:24:35,799 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-24 19:24:35,799 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-24 19:24:35,800 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-24 19:24:35,800 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-24 19:24:35,800 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-24 19:24:35,800 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 19:24:35,800 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-24 19:24:35,800 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-24 19:24:35,801 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-24 19:24:35,801 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-24 19:24:35,801 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-24 19:24:35,801 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-24 19:24:35,801 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-24 19:24:35,801 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-24 19:24:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-24 19:24:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-24 19:24:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-24 19:24:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-24 19:24:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-24 19:24:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-24 19:24:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-24 19:24:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-24 19:24:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-24 19:24:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-24 19:24:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-24 19:24:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-24 19:24:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-24 19:24:35,804 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-24 19:24:35,804 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-24 19:24:35,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-24 19:24:35,804 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-24 19:24:35,804 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-24 19:24:35,804 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-24 19:24:35,805 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-24 19:24:35,805 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-24 19:24:35,805 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-24 19:24:35,805 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-24 19:24:35,805 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-24 19:24:35,805 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-24 19:24:35,805 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-24 19:24:35,806 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-24 19:24:35,806 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-24 19:24:35,806 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-24 19:24:35,806 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-24 19:24:35,806 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-24 19:24:35,806 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-24 19:24:35,807 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-24 19:24:35,807 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-24 19:24:35,807 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-24 19:24:35,807 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-09-24 19:24:35,807 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2020-09-24 19:24:35,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:24:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:24:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:24:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2020-09-24 19:24:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy [2020-09-24 19:24:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:24:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:24:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure dll_get_data_at [2020-09-24 19:24:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:24:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure dll_update_at [2020-09-24 19:24:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:24:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:24:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:24:36,227 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-09-24 19:24:36,487 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:24:36,488 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-09-24 19:24:36,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:24:36 BoogieIcfgContainer [2020-09-24 19:24:36,498 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:24:36,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:24:36,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:24:36,505 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:24:36,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:24:34" (1/3) ... [2020-09-24 19:24:36,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b503b0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:24:36, skipping insertion in model container [2020-09-24 19:24:36,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:24:35" (2/3) ... [2020-09-24 19:24:36,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b503b0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:24:36, skipping insertion in model container [2020-09-24 19:24:36,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:24:36" (3/3) ... [2020-09-24 19:24:36,519 INFO L109 eAbstractionObserver]: Analyzing ICFG dll2n_update_all_reverse.i [2020-09-24 19:24:36,531 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:24:36,545 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:24:36,565 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:24:36,597 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:24:36,597 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:24:36,598 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:24:36,598 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:24:36,598 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:24:36,598 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:24:36,598 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:24:36,598 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:24:36,624 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2020-09-24 19:24:36,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-24 19:24:36,635 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:24:36,637 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:24:36,637 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:24:36,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:24:36,644 INFO L82 PathProgramCache]: Analyzing trace with hash 935667377, now seen corresponding path program 1 times [2020-09-24 19:24:36,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:24:36,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [75147161] [2020-09-24 19:24:36,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:24:36,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:24:36,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:24:36,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:24:37,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:24:37,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:24:37,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:24:37,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-24 19:24:37,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:24:37,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1004 [2020-09-24 19:24:37,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:24:37,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:24:37,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-24 19:24:37,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:24:37,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 19:24:37,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:24:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:24:37,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:24:37,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:24:37,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:24:37,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:24:37,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:24:37,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:24:37,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:24:37,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:24:37,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:24:37,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:24:37,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 19:24:37,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:24:37,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:24:37,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:24:37,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 19:24:37,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:24:37,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:24:37,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:24:37,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:24:37,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:24:37,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:24:37,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:24:37,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 19:24:37,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:24:37,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:24:37,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:24:37,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 19:24:37,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:24:37,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:24:37,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:24:37,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:24:37,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:24:37,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:24:37,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:24:37,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:24:37,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [75147161] [2020-09-24 19:24:37,982 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:24:37,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:24:37,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530474786] [2020-09-24 19:24:37,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:24:37,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:24:38,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:24:38,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:24:38,013 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 4 states. [2020-09-24 19:24:38,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:24:38,377 INFO L93 Difference]: Finished difference Result 225 states and 280 transitions. [2020-09-24 19:24:38,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:24:38,380 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2020-09-24 19:24:38,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:24:38,397 INFO L225 Difference]: With dead ends: 225 [2020-09-24 19:24:38,397 INFO L226 Difference]: Without dead ends: 123 [2020-09-24 19:24:38,403 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:24:38,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-09-24 19:24:38,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 79. [2020-09-24 19:24:38,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-09-24 19:24:38,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2020-09-24 19:24:38,476 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 38 [2020-09-24 19:24:38,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:24:38,477 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2020-09-24 19:24:38,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:24:38,478 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2020-09-24 19:24:38,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-24 19:24:38,480 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:24:38,480 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:24:38,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:24:38,481 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:24:38,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:24:38,481 INFO L82 PathProgramCache]: Analyzing trace with hash 287472295, now seen corresponding path program 1 times [2020-09-24 19:24:38,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:24:38,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1643760294] [2020-09-24 19:24:38,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:24:38,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:24:38,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:24:38,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:24:38,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:24:38,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:24:39,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:24:39,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-24 19:24:39,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:24:39,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:24:39,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:24:39,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:24:39,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 19:24:39,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 19:24:39,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:24:39,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:24:39,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:24:39,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:24:39,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:24:39,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:24:39,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:24:39,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:24:39,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:24:39,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:24:39,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:24:39,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:24:39,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:24:39,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 19:24:39,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:24:39,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:24:39,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:24:39,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:24:39,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 19:24:39,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:24:39,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 19:24:39,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:24:39,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:24:39,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:24:39,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:24:39,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:24:39,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 19:24:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:24:39,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:24:39,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:24:39,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 19:24:39,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:24:39,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:24:39,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:24:39,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:24:39,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:24:39,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:24:39,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:24:39,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:24:39,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1643760294] [2020-09-24 19:24:39,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:24:39,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 19:24:39,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975997926] [2020-09-24 19:24:39,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:24:39,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:24:39,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:24:39,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:24:39,732 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand 6 states. [2020-09-24 19:24:40,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:24:40,115 INFO L93 Difference]: Finished difference Result 108 states and 120 transitions. [2020-09-24 19:24:40,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 19:24:40,115 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-09-24 19:24:40,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:24:40,116 INFO L225 Difference]: With dead ends: 108 [2020-09-24 19:24:40,116 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 19:24:40,118 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-09-24 19:24:40,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 19:24:40,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 19:24:40,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 19:24:40,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 19:24:40,119 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2020-09-24 19:24:40,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:24:40,120 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 19:24:40,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:24:40,120 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 19:24:40,120 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 19:24:40,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:24:40,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 19:24:40,469 INFO L268 CegarLoopResult]: For program point L609(line 609) no Hoare annotation was computed. [2020-09-24 19:24:40,469 INFO L268 CegarLoopResult]: For program point L608(line 608) no Hoare annotation was computed. [2020-09-24 19:24:40,469 INFO L268 CegarLoopResult]: For program point L609-1(line 609) no Hoare annotation was computed. [2020-09-24 19:24:40,469 INFO L268 CegarLoopResult]: For program point L608-1(line 608) no Hoare annotation was computed. [2020-09-24 19:24:40,469 INFO L268 CegarLoopResult]: For program point L609-2(line 609) no Hoare annotation was computed. [2020-09-24 19:24:40,469 INFO L268 CegarLoopResult]: For program point L606(lines 606 612) no Hoare annotation was computed. [2020-09-24 19:24:40,469 INFO L268 CegarLoopResult]: For program point L608-2(line 608) no Hoare annotation was computed. [2020-09-24 19:24:40,470 INFO L268 CegarLoopResult]: For program point L606-1(lines 606 612) no Hoare annotation was computed. [2020-09-24 19:24:40,470 INFO L264 CegarLoopResult]: At program point L607-2(lines 607 610) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-09-24 19:24:40,470 INFO L268 CegarLoopResult]: For program point L607-3(lines 607 610) no Hoare annotation was computed. [2020-09-24 19:24:40,470 INFO L264 CegarLoopResult]: At program point dll_update_atENTRY(lines 606 612) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-09-24 19:24:40,470 INFO L268 CegarLoopResult]: For program point dll_update_atEXIT(lines 606 612) no Hoare annotation was computed. [2020-09-24 19:24:40,471 INFO L268 CegarLoopResult]: For program point dll_update_atFINAL(lines 606 612) no Hoare annotation was computed. [2020-09-24 19:24:40,471 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-24 19:24:40,471 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-24 19:24:40,471 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-24 19:24:40,471 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-24 19:24:40,471 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 19:24:40,471 INFO L271 CegarLoopResult]: At program point myexitENTRY(lines 561 563) the Hoare annotation is: true [2020-09-24 19:24:40,471 INFO L268 CegarLoopResult]: For program point myexitEXIT(lines 561 563) no Hoare annotation was computed. [2020-09-24 19:24:40,472 INFO L271 CegarLoopResult]: At program point L562(line 562) the Hoare annotation is: true [2020-09-24 19:24:40,472 INFO L268 CegarLoopResult]: For program point L578-1(lines 578 580) no Hoare annotation was computed. [2020-09-24 19:24:40,473 INFO L264 CegarLoopResult]: At program point dll_createENTRY(lines 574 591) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-09-24 19:24:40,473 INFO L268 CegarLoopResult]: For program point L574(lines 574 591) no Hoare annotation was computed. [2020-09-24 19:24:40,473 INFO L271 CegarLoopResult]: At program point L576-2(lines 576 589) the Hoare annotation is: true [2020-09-24 19:24:40,473 INFO L268 CegarLoopResult]: For program point L576-3(lines 576 589) no Hoare annotation was computed. [2020-09-24 19:24:40,473 INFO L268 CegarLoopResult]: For program point dll_createFINAL(lines 574 591) no Hoare annotation was computed. [2020-09-24 19:24:40,473 INFO L268 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-09-24 19:24:40,473 INFO L268 CegarLoopResult]: For program point L583(lines 576 589) no Hoare annotation was computed. [2020-09-24 19:24:40,474 INFO L268 CegarLoopResult]: For program point L581(line 581) no Hoare annotation was computed. [2020-09-24 19:24:40,474 INFO L271 CegarLoopResult]: At program point L579(line 579) the Hoare annotation is: true [2020-09-24 19:24:40,474 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-09-24 19:24:40,474 INFO L268 CegarLoopResult]: For program point L577-1(line 577) no Hoare annotation was computed. [2020-09-24 19:24:40,474 INFO L268 CegarLoopResult]: For program point L575(line 575) no Hoare annotation was computed. [2020-09-24 19:24:40,474 INFO L268 CegarLoopResult]: For program point dll_createEXIT(lines 574 591) no Hoare annotation was computed. [2020-09-24 19:24:40,474 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-09-24 19:24:40,474 INFO L268 CegarLoopResult]: For program point L588-1(line 588) no Hoare annotation was computed. [2020-09-24 19:24:40,475 INFO L268 CegarLoopResult]: For program point L588-2(line 588) no Hoare annotation was computed. [2020-09-24 19:24:40,475 INFO L268 CegarLoopResult]: For program point L584(lines 584 586) no Hoare annotation was computed. [2020-09-24 19:24:40,475 INFO L268 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-09-24 19:24:40,475 INFO L268 CegarLoopResult]: For program point L578(lines 578 580) no Hoare annotation was computed. [2020-09-24 19:24:40,475 INFO L268 CegarLoopResult]: For program point L66-1(line 66) no Hoare annotation was computed. [2020-09-24 19:24:40,475 INFO L268 CegarLoopResult]: For program point __bswap_32ENTRY(lines 63 67) no Hoare annotation was computed. [2020-09-24 19:24:40,475 INFO L268 CegarLoopResult]: For program point __bswap_32FINAL(lines 63 67) no Hoare annotation was computed. [2020-09-24 19:24:40,475 INFO L268 CegarLoopResult]: For program point __bswap_32EXIT(lines 63 67) no Hoare annotation was computed. [2020-09-24 19:24:40,476 INFO L268 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-09-24 19:24:40,476 INFO L268 CegarLoopResult]: For program point __bswap_64ENTRY(lines 68 72) no Hoare annotation was computed. [2020-09-24 19:24:40,476 INFO L268 CegarLoopResult]: For program point __bswap_64FINAL(lines 68 72) no Hoare annotation was computed. [2020-09-24 19:24:40,476 INFO L268 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-09-24 19:24:40,478 INFO L268 CegarLoopResult]: For program point L71-1(line 71) no Hoare annotation was computed. [2020-09-24 19:24:40,478 INFO L268 CegarLoopResult]: For program point __bswap_64EXIT(lines 68 72) no Hoare annotation was computed. [2020-09-24 19:24:40,478 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 19:24:40,478 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 19:24:40,478 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 19:24:40,479 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 19:24:40,479 INFO L268 CegarLoopResult]: For program point L604(line 604) no Hoare annotation was computed. [2020-09-24 19:24:40,479 INFO L268 CegarLoopResult]: For program point L604-1(line 604) no Hoare annotation was computed. [2020-09-24 19:24:40,479 INFO L268 CegarLoopResult]: For program point L602(line 602) no Hoare annotation was computed. [2020-09-24 19:24:40,479 INFO L268 CegarLoopResult]: For program point L601(line 601) no Hoare annotation was computed. [2020-09-24 19:24:40,479 INFO L268 CegarLoopResult]: For program point L602-1(line 602) no Hoare annotation was computed. [2020-09-24 19:24:40,479 INFO L268 CegarLoopResult]: For program point L601-1(line 601) no Hoare annotation was computed. [2020-09-24 19:24:40,479 INFO L268 CegarLoopResult]: For program point L602-2(line 602) no Hoare annotation was computed. [2020-09-24 19:24:40,480 INFO L268 CegarLoopResult]: For program point L599(lines 599 605) no Hoare annotation was computed. [2020-09-24 19:24:40,480 INFO L268 CegarLoopResult]: For program point L601-2(line 601) no Hoare annotation was computed. [2020-09-24 19:24:40,480 INFO L271 CegarLoopResult]: At program point L600-2(lines 600 603) the Hoare annotation is: true [2020-09-24 19:24:40,480 INFO L268 CegarLoopResult]: For program point L600-3(lines 600 603) no Hoare annotation was computed. [2020-09-24 19:24:40,481 INFO L268 CegarLoopResult]: For program point dll_get_data_atFINAL(lines 599 605) no Hoare annotation was computed. [2020-09-24 19:24:40,481 INFO L271 CegarLoopResult]: At program point dll_get_data_atENTRY(lines 599 605) the Hoare annotation is: true [2020-09-24 19:24:40,481 INFO L268 CegarLoopResult]: For program point dll_get_data_atEXIT(lines 599 605) no Hoare annotation was computed. [2020-09-24 19:24:40,481 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 613 632) no Hoare annotation was computed. [2020-09-24 19:24:40,481 INFO L268 CegarLoopResult]: For program point L622-2(lines 622 627) no Hoare annotation was computed. [2020-09-24 19:24:40,481 INFO L268 CegarLoopResult]: For program point L622-3(line 622) no Hoare annotation was computed. [2020-09-24 19:24:40,481 INFO L268 CegarLoopResult]: For program point L618(line 618) no Hoare annotation was computed. [2020-09-24 19:24:40,481 INFO L268 CegarLoopResult]: For program point L622-4(line 622) no Hoare annotation was computed. [2020-09-24 19:24:40,482 INFO L264 CegarLoopResult]: At program point L622-5(lines 622 627) the Hoare annotation is: (and (<= 2 main_~len~0) (<= 1 main_~i~0)) [2020-09-24 19:24:40,483 INFO L271 CegarLoopResult]: At program point L622-6(lines 622 627) the Hoare annotation is: true [2020-09-24 19:24:40,483 INFO L268 CegarLoopResult]: For program point L618-3(line 618) no Hoare annotation was computed. [2020-09-24 19:24:40,483 INFO L268 CegarLoopResult]: For program point L618-4(line 618) no Hoare annotation was computed. [2020-09-24 19:24:40,483 INFO L264 CegarLoopResult]: At program point L618-5(lines 618 621) the Hoare annotation is: (<= 2 main_~len~0) [2020-09-24 19:24:40,483 INFO L268 CegarLoopResult]: For program point L618-6(lines 618 621) no Hoare annotation was computed. [2020-09-24 19:24:40,483 INFO L268 CegarLoopResult]: For program point L631(line 631) no Hoare annotation was computed. [2020-09-24 19:24:40,484 INFO L268 CegarLoopResult]: For program point L623(line 623) no Hoare annotation was computed. [2020-09-24 19:24:40,484 INFO L268 CegarLoopResult]: For program point L619(line 619) no Hoare annotation was computed. [2020-09-24 19:24:40,484 INFO L268 CegarLoopResult]: For program point L615(line 615) no Hoare annotation was computed. [2020-09-24 19:24:40,484 INFO L268 CegarLoopResult]: For program point L628(line 628) no Hoare annotation was computed. [2020-09-24 19:24:40,484 INFO L264 CegarLoopResult]: At program point L624(line 624) the Hoare annotation is: false [2020-09-24 19:24:40,484 INFO L268 CegarLoopResult]: For program point L624-1(line 624) no Hoare annotation was computed. [2020-09-24 19:24:40,485 INFO L268 CegarLoopResult]: For program point L624-2(lines 624 626) no Hoare annotation was computed. [2020-09-24 19:24:40,485 INFO L268 CegarLoopResult]: For program point L624-3(line 624) no Hoare annotation was computed. [2020-09-24 19:24:40,485 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 613 632) no Hoare annotation was computed. [2020-09-24 19:24:40,485 INFO L264 CegarLoopResult]: At program point L620(line 620) the Hoare annotation is: (<= 2 main_~len~0) [2020-09-24 19:24:40,485 INFO L268 CegarLoopResult]: For program point L624-4(line 624) no Hoare annotation was computed. [2020-09-24 19:24:40,486 INFO L268 CegarLoopResult]: For program point L620-1(lines 618 621) no Hoare annotation was computed. [2020-09-24 19:24:40,486 INFO L264 CegarLoopResult]: At program point L616(line 616) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (<= 2 main_~len~0) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-09-24 19:24:40,486 INFO L268 CegarLoopResult]: For program point L616-1(line 616) no Hoare annotation was computed. [2020-09-24 19:24:40,487 INFO L268 CegarLoopResult]: For program point L616-2(line 616) no Hoare annotation was computed. [2020-09-24 19:24:40,487 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 630) no Hoare annotation was computed. [2020-09-24 19:24:40,487 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 613 632) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-09-24 19:24:40,487 INFO L264 CegarLoopResult]: At program point L625(lines 613 632) the Hoare annotation is: false [2020-09-24 19:24:40,487 INFO L268 CegarLoopResult]: For program point L617(line 617) no Hoare annotation was computed. [2020-09-24 19:24:40,488 INFO L268 CegarLoopResult]: For program point dll_destroyEXIT(lines 592 598) no Hoare annotation was computed. [2020-09-24 19:24:40,488 INFO L264 CegarLoopResult]: At program point dll_destroyENTRY(lines 592 598) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-09-24 19:24:40,488 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-09-24 19:24:40,488 INFO L268 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-09-24 19:24:40,488 INFO L268 CegarLoopResult]: For program point L595-1(line 595) no Hoare annotation was computed. [2020-09-24 19:24:40,488 INFO L268 CegarLoopResult]: For program point L594-1(line 594) no Hoare annotation was computed. [2020-09-24 19:24:40,488 INFO L268 CegarLoopResult]: For program point L594-2(line 594) no Hoare annotation was computed. [2020-09-24 19:24:40,489 INFO L271 CegarLoopResult]: At program point L593-2(lines 593 597) the Hoare annotation is: true [2020-09-24 19:24:40,489 INFO L268 CegarLoopResult]: For program point L593-3(lines 592 598) no Hoare annotation was computed. [2020-09-24 19:24:40,489 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-09-24 19:24:40,489 INFO L268 CegarLoopResult]: For program point node_createENTRY(lines 564 573) no Hoare annotation was computed. [2020-09-24 19:24:40,489 INFO L268 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-09-24 19:24:40,489 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-09-24 19:24:40,489 INFO L268 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-09-24 19:24:40,489 INFO L268 CegarLoopResult]: For program point L566(lines 566 568) no Hoare annotation was computed. [2020-09-24 19:24:40,489 INFO L268 CegarLoopResult]: For program point node_createEXIT(lines 564 573) no Hoare annotation was computed. [2020-09-24 19:24:40,490 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-09-24 19:24:40,490 INFO L268 CegarLoopResult]: For program point L566-1(lines 566 568) no Hoare annotation was computed. [2020-09-24 19:24:40,490 INFO L268 CegarLoopResult]: For program point L565-1(line 565) no Hoare annotation was computed. [2020-09-24 19:24:40,490 INFO L268 CegarLoopResult]: For program point node_createFINAL(lines 564 573) no Hoare annotation was computed. [2020-09-24 19:24:40,510 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-24 19:24:40,511 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-24 19:24:40,511 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-24 19:24:40,512 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-24 19:24:40,512 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-24 19:24:40,512 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-24 19:24:40,512 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 19:24:40,513 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 19:24:40,513 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-24 19:24:40,513 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-24 19:24:40,514 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-24 19:24:40,514 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-24 19:24:40,514 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-24 19:24:40,514 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-24 19:24:40,514 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-24 19:24:40,515 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-24 19:24:40,515 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 19:24:40,515 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 19:24:40,515 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-24 19:24:40,515 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-24 19:24:40,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 07:24:40 BoogieIcfgContainer [2020-09-24 19:24:40,519 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 19:24:40,527 INFO L168 Benchmark]: Toolchain (without parser) took 5653.92 ms. Allocated memory was 148.4 MB in the beginning and 244.8 MB in the end (delta: 96.5 MB). Free memory was 103.7 MB in the beginning and 151.9 MB in the end (delta: -48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 7.1 GB. [2020-09-24 19:24:40,530 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 148.4 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 19:24:40,531 INFO L168 Benchmark]: CACSL2BoogieTranslator took 746.36 ms. Allocated memory was 148.4 MB in the beginning and 206.0 MB in the end (delta: 57.7 MB). Free memory was 103.1 MB in the beginning and 171.5 MB in the end (delta: -68.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-09-24 19:24:40,532 INFO L168 Benchmark]: Boogie Preprocessor took 85.64 ms. Allocated memory is still 206.0 MB. Free memory was 171.5 MB in the beginning and 169.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-09-24 19:24:40,535 INFO L168 Benchmark]: RCFGBuilder took 792.90 ms. Allocated memory is still 206.0 MB. Free memory was 169.0 MB in the beginning and 114.9 MB in the end (delta: 54.0 MB). Peak memory consumption was 54.0 MB. Max. memory is 7.1 GB. [2020-09-24 19:24:40,538 INFO L168 Benchmark]: TraceAbstraction took 4018.59 ms. Allocated memory was 206.0 MB in the beginning and 244.8 MB in the end (delta: 38.8 MB). Free memory was 114.9 MB in the beginning and 151.9 MB in the end (delta: -37.0 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2020-09-24 19:24:40,549 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 148.4 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 746.36 ms. Allocated memory was 148.4 MB in the beginning and 206.0 MB in the end (delta: 57.7 MB). Free memory was 103.1 MB in the beginning and 171.5 MB in the end (delta: -68.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.64 ms. Allocated memory is still 206.0 MB. Free memory was 171.5 MB in the beginning and 169.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 792.90 ms. Allocated memory is still 206.0 MB. Free memory was 169.0 MB in the beginning and 114.9 MB in the end (delta: 54.0 MB). Peak memory consumption was 54.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4018.59 ms. Allocated memory was 206.0 MB in the beginning and 244.8 MB in the end (delta: 38.8 MB). Free memory was 114.9 MB in the beginning and 151.9 MB in the end (delta: -37.0 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 630]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: 2 <= len - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 622]: Loop Invariant Derived loop invariant: 2 <= len && 1 <= i - InvariantResult [Line: 607]: Loop Invariant [2020-09-24 19:24:40,569 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-24 19:24:40,569 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-24 19:24:40,570 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-24 19:24:40,571 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-24 19:24:40,571 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-24 19:24:40,572 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-24 19:24:40,572 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 19:24:40,572 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 19:24:40,572 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-24 19:24:40,572 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-24 19:24:40,573 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-24 19:24:40,573 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-24 19:24:40,573 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-24 19:24:40,573 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-24 19:24:40,574 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-24 19:24:40,574 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-24 19:24:40,574 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 19:24:40,574 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 19:24:40,574 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-24 19:24:40,574 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: (#memory_$Pointer$ == \old(#memory_$Pointer$) && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && #memory_$Pointer$ == \old(#memory_$Pointer$) - InvariantResult [Line: 600]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 613]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 120 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 143 SDtfs, 246 SDslu, 90 SDs, 0 SdLazy, 253 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred 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, 2 MinimizatonAttempts, 44 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 38 PreInvPairs, 55 NumberOfFragments, 109 HoareAnnotationTreeSize, 38 FomulaSimplifications, 115 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 22 FomulaSimplificationsInter, 115 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 5032 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 correct! Received shutdown request...