/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=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-sets/test_add-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:52:23,225 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:52:23,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:52:23,278 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:52:23,279 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:52:23,288 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:52:23,290 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:52:23,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:52:23,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:52:23,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:52:23,302 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:52:23,303 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:52:23,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:52:23,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:52:23,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:52:23,312 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:52:23,314 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:52:23,315 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:52:23,317 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:52:23,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:52:23,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:52:23,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:52:23,332 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:52:23,333 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:52:23,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:52:23,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:52:23,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:52:23,350 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:52:23,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:52:23,357 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:52:23,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:52:23,358 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:52:23,359 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:52:23,363 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:52:23,365 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:52:23,365 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:52:23,366 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:52:23,367 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:52:23,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:52:23,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:52:23,369 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:52:23,370 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 23:52:23,419 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:52:23,420 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:52:23,422 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:52:23,423 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:52:23,423 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:52:23,423 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:52:23,424 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:52:23,424 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:52:23,424 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:52:23,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:52:23,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:52:23,426 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:52:23,426 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:52:23,426 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:52:23,427 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:52:23,427 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:52:23,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:52:23,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:52:23,428 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:52:23,428 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:52:23,428 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:52:23,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:52:23,428 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:52:23,429 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:52:23,429 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:52:23,429 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:52:23,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:52:23,429 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:52:23,430 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:52:23,430 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=5000;interpolation-heuristic=SHALLOWEST;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=5000;interpolation-heuristic=SHALLOWEST;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=5000;interpolation-heuristic=SHALLOWEST;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=5000;interpolation-heuristic=SHALLOWEST;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=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; [2020-09-24 23:52:23,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:52:23,910 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:52:23,914 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:52:23,916 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:52:23,916 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:52:23,918 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_add-1.i [2020-09-24 23:52:23,998 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/652b9288b/5ca83e9741c9406caff21cd834ea9e1a/FLAG5bede193d [2020-09-24 23:52:24,696 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:52:24,697 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-sets/test_add-1.i [2020-09-24 23:52:24,715 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/652b9288b/5ca83e9741c9406caff21cd834ea9e1a/FLAG5bede193d [2020-09-24 23:52:24,899 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/652b9288b/5ca83e9741c9406caff21cd834ea9e1a [2020-09-24 23:52:24,913 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:52:24,919 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:52:24,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:52:24,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:52:24,925 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:52:24,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:52:24" (1/1) ... [2020-09-24 23:52:24,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a5abf64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:24, skipping insertion in model container [2020-09-24 23:52:24,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:52:24" (1/1) ... [2020-09-24 23:52:24,948 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:52:25,030 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:52:25,570 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:52:25,590 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:52:25,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:52:25,743 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:52:25,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:25 WrapperNode [2020-09-24 23:52:25,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:52:25,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:52:25,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:52:25,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:52:25,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:25" (1/1) ... [2020-09-24 23:52:25,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:25" (1/1) ... [2020-09-24 23:52:25,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:25" (1/1) ... [2020-09-24 23:52:25,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:25" (1/1) ... [2020-09-24 23:52:25,807 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:25" (1/1) ... [2020-09-24 23:52:25,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:25" (1/1) ... [2020-09-24 23:52:25,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:25" (1/1) ... [2020-09-24 23:52:25,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:52:25,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:52:25,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:52:25,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:52:25,829 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:25" (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 23:52:25,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:52:25,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:52:25,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-24 23:52:25,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-24 23:52:25,905 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 23:52:25,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 23:52:25,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-09-24 23:52:25,906 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-09-24 23:52:25,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-09-24 23:52:25,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-09-24 23:52:25,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-09-24 23:52:25,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-09-24 23:52:25,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-09-24 23:52:25,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-09-24 23:52:25,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-09-24 23:52:25,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-24 23:52:25,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-09-24 23:52:25,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-09-24 23:52:25,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-09-24 23:52:25,910 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-09-24 23:52:25,911 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:52:25,911 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-24 23:52:25,912 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-24 23:52:25,912 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-24 23:52:25,913 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-24 23:52:25,914 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-24 23:52:25,914 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-24 23:52:25,914 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-24 23:52:25,915 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-24 23:52:25,915 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-24 23:52:25,915 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-24 23:52:25,915 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-24 23:52:25,915 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-24 23:52:25,915 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-24 23:52:25,916 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-24 23:52:25,916 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-24 23:52:25,916 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-24 23:52:25,916 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-24 23:52:25,916 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-24 23:52:25,916 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-24 23:52:25,916 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-24 23:52:25,917 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-24 23:52:25,917 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-24 23:52:25,917 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-24 23:52:25,917 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-24 23:52:25,917 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-24 23:52:25,917 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-24 23:52:25,918 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-24 23:52:25,918 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-24 23:52:25,918 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-24 23:52:25,918 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-24 23:52:25,919 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-24 23:52:25,919 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-24 23:52:25,919 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-24 23:52:25,919 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-24 23:52:25,919 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-24 23:52:25,920 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-24 23:52:25,920 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-24 23:52:25,920 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-24 23:52:25,920 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-24 23:52:25,920 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-24 23:52:25,920 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-24 23:52:25,920 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-24 23:52:25,921 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-24 23:52:25,921 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-24 23:52:25,921 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-24 23:52:25,921 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-24 23:52:25,922 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-24 23:52:25,922 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-24 23:52:25,922 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-24 23:52:25,923 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-24 23:52:25,924 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-24 23:52:25,925 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-24 23:52:25,925 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:52:25,925 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 23:52:25,925 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-24 23:52:25,925 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:52:25,926 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-24 23:52:25,926 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-24 23:52:25,926 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-24 23:52:25,926 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-24 23:52:25,926 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 23:52:25,926 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-24 23:52:25,927 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-24 23:52:25,927 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-24 23:52:25,928 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-24 23:52:25,928 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-24 23:52:25,928 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-24 23:52:25,928 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-24 23:52:25,928 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-24 23:52:25,928 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-24 23:52:25,928 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-24 23:52:25,929 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-24 23:52:25,929 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-24 23:52:25,929 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-24 23:52:25,929 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-24 23:52:25,929 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-24 23:52:25,929 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-24 23:52:25,929 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-24 23:52:25,930 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-24 23:52:25,930 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-24 23:52:25,930 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-24 23:52:25,930 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-24 23:52:25,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-24 23:52:25,930 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-24 23:52:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-24 23:52:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-24 23:52:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-24 23:52:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-24 23:52:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-24 23:52:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-24 23:52:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-24 23:52:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-24 23:52:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-24 23:52:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-24 23:52:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-24 23:52:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-24 23:52:25,933 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-24 23:52:25,934 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-24 23:52:25,934 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-24 23:52:25,934 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-24 23:52:25,934 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-24 23:52:25,934 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-24 23:52:25,934 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:52:25,935 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 23:52:25,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:52:25,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 23:52:25,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:52:25,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-09-24 23:52:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-09-24 23:52:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:52:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-09-24 23:52:25,941 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-09-24 23:52:25,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-09-24 23:52:25,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:52:25,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-09-24 23:52:25,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-09-24 23:52:25,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-09-24 23:52:25,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-09-24 23:52:25,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-24 23:52:25,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-09-24 23:52:25,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-09-24 23:52:25,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-09-24 23:52:25,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:52:25,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:52:25,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:52:25,951 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-09-24 23:52:25,951 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:52:25,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:52:25,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:52:25,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 23:52:25,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:52:26,659 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:52:26,659 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-24 23:52:26,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:52:26 BoogieIcfgContainer [2020-09-24 23:52:26,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:52:26,667 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:52:26,667 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:52:26,671 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:52:26,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:52:24" (1/3) ... [2020-09-24 23:52:26,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42454dd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:52:26, skipping insertion in model container [2020-09-24 23:52:26,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:25" (2/3) ... [2020-09-24 23:52:26,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42454dd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:52:26, skipping insertion in model container [2020-09-24 23:52:26,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:52:26" (3/3) ... [2020-09-24 23:52:26,676 INFO L109 eAbstractionObserver]: Analyzing ICFG test_add-1.i [2020-09-24 23:52:26,689 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:52:26,701 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:52:26,725 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:52:26,760 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:52:26,761 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:52:26,761 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:52:26,788 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:52:26,789 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:52:26,789 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:52:26,789 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:52:26,789 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:52:26,816 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2020-09-24 23:52:26,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-24 23:52:26,827 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:52:26,828 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 23:52:26,829 INFO L427 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:52:26,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:52:26,837 INFO L82 PathProgramCache]: Analyzing trace with hash -773204813, now seen corresponding path program 1 times [2020-09-24 23:52:26,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:52:26,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [504624403] [2020-09-24 23:52:26,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:52:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:27,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:27,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:27,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:27,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 23:52:27,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:52:27,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 644 [2020-09-24 23:52:27,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:27,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:52:27,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-09-24 23:52:27,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:52:27,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 23:52:27,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:52:27,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:27,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:27,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:27,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 23:52:27,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:27,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:52:27,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:27,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:52:27,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:27,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:52:27,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:27,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 23:52:27,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:27,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:27,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:27,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:52:27,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:27,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-24 23:52:27,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:27,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:52:27,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 23:52:27,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:52:27,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:27,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:52:27,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:27,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:27,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:27,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 23:52:27,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:27,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 23:52:27,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:27,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:52:27,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:27,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 23:52:27,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:28,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 23:52:28,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:28,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:28,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:28,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 23:52:28,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:28,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 23:52:28,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:28,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:52:28,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 23:52:28,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:52:28,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:28,064 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-24 23:52:28,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [504624403] [2020-09-24 23:52:28,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:52:28,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-24 23:52:28,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954069169] [2020-09-24 23:52:28,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 23:52:28,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:52:28,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 23:52:28,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:52:28,098 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 6 states. [2020-09-24 23:52:28,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:52:28,753 INFO L93 Difference]: Finished difference Result 184 states and 205 transitions. [2020-09-24 23:52:28,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 23:52:28,755 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2020-09-24 23:52:28,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:52:28,771 INFO L225 Difference]: With dead ends: 184 [2020-09-24 23:52:28,771 INFO L226 Difference]: Without dead ends: 95 [2020-09-24 23:52:28,777 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:52:28,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-09-24 23:52:28,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 87. [2020-09-24 23:52:28,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-09-24 23:52:28,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 91 transitions. [2020-09-24 23:52:28,849 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 91 transitions. Word has length 50 [2020-09-24 23:52:28,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:52:28,850 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 91 transitions. [2020-09-24 23:52:28,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 23:52:28,851 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 91 transitions. [2020-09-24 23:52:28,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-24 23:52:28,854 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:52:28,855 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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 23:52:28,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:52:28,855 INFO L427 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:52:28,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:52:28,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1962919132, now seen corresponding path program 1 times [2020-09-24 23:52:28,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:52:28,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [831662228] [2020-09-24 23:52:28,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:52:28,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:28,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:28,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:30,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:33,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:33,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-24 23:52:33,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:52:33,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 23:52:33,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:33,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 23:52:33,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-24 23:52:33,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 23:52:33,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:33,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:52:33,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:33,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:34,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:34,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 23:52:34,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:34,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 23:52:34,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:34,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:52:34,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:34,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:52:34,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:34,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 23:52:34,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:34,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:34,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:34,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 23:52:34,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:34,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-09-24 23:52:34,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:34,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:52:34,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:52:34,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 23:52:34,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:34,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:52:34,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:34,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:34,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:34,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 23:52:34,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:34,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-24 23:52:34,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:34,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:52:34,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:34,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 23:52:34,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:34,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 23:52:34,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:34,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:34,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:34,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 23:52:34,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:34,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:52:34,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:34,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:52:34,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 23:52:34,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:52:34,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:34,561 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 23:52:34,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [831662228] [2020-09-24 23:52:34,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:52:34,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 23:52:34,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319859737] [2020-09-24 23:52:34,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 23:52:34,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:52:34,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 23:52:34,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-09-24 23:52:34,568 INFO L87 Difference]: Start difference. First operand 87 states and 91 transitions. Second operand 13 states. [2020-09-24 23:52:36,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:52:36,400 INFO L93 Difference]: Finished difference Result 180 states and 191 transitions. [2020-09-24 23:52:36,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-24 23:52:36,400 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 53 [2020-09-24 23:52:36,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:52:36,403 INFO L225 Difference]: With dead ends: 180 [2020-09-24 23:52:36,403 INFO L226 Difference]: Without dead ends: 110 [2020-09-24 23:52:36,406 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=271, Invalid=851, Unknown=0, NotChecked=0, Total=1122 [2020-09-24 23:52:36,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-09-24 23:52:36,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 93. [2020-09-24 23:52:36,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-24 23:52:36,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 94 transitions. [2020-09-24 23:52:36,432 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 94 transitions. Word has length 53 [2020-09-24 23:52:36,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:52:36,432 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 94 transitions. [2020-09-24 23:52:36,433 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 23:52:36,437 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 94 transitions. [2020-09-24 23:52:36,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-24 23:52:36,441 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:52:36,445 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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 23:52:36,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:52:36,445 INFO L427 AbstractCegarLoop]: === Iteration 3 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:52:36,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:52:36,446 INFO L82 PathProgramCache]: Analyzing trace with hash 976010630, now seen corresponding path program 1 times [2020-09-24 23:52:36,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:52:36,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1941019395] [2020-09-24 23:52:36,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:52:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:36,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:36,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:39,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:39,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-24 23:52:39,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:52:39,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3077 [2020-09-24 23:52:39,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:39,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 23:52:39,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 23:52:39,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-24 23:52:39,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:39,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:52:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:39,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:39,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:39,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 23:52:39,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:39,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 23:52:39,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:39,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:52:39,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:39,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:52:39,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:39,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 23:52:39,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:39,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:40,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:40,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-24 23:52:40,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:40,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 759 [2020-09-24 23:52:40,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:40,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:52:40,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:40,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-24 23:52:40,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:40,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:52:40,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:40,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:40,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:40,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 23:52:40,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:40,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 23:52:40,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:40,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:52:40,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:40,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 23:52:40,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:40,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-24 23:52:40,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:40,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:40,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:40,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 23:52:40,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:40,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 23:52:40,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:40,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:52:40,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:40,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:52:40,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:52:40,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:52:40,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:40,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:40,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:40,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:52:40,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:40,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 23:52:40,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:40,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:52:40,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:40,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:52:40,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:52:40,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-24 23:52:40,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:40,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:41,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:41,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-24 23:52:41,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:41,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-09-24 23:52:41,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:41,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:52:41,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:41,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 23:52:41,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:52:41,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:52:41,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:41,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:41,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:41,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:52:41,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:41,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-24 23:52:41,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:41,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:52:41,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:41,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 23:52:41,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:41,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-24 23:52:41,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:41,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:41,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:41,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 23:52:41,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:41,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 23:52:41,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:41,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:52:41,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 23:52:41,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 23:52:41,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:41,593 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 23:52:41,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1941019395] [2020-09-24 23:52:41,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:52:41,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2020-09-24 23:52:41,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886590361] [2020-09-24 23:52:41,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-09-24 23:52:41,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:52:41,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-09-24 23:52:41,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2020-09-24 23:52:41,596 INFO L87 Difference]: Start difference. First operand 93 states and 94 transitions. Second operand 26 states. [2020-09-24 23:52:44,119 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2020-09-24 23:52:44,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:52:44,648 INFO L93 Difference]: Finished difference Result 113 states and 115 transitions. [2020-09-24 23:52:44,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-09-24 23:52:44,649 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 83 [2020-09-24 23:52:44,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:52:44,652 INFO L225 Difference]: With dead ends: 113 [2020-09-24 23:52:44,652 INFO L226 Difference]: Without dead ends: 105 [2020-09-24 23:52:44,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=431, Invalid=2875, Unknown=0, NotChecked=0, Total=3306 [2020-09-24 23:52:44,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-09-24 23:52:44,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 94. [2020-09-24 23:52:44,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-09-24 23:52:44,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 95 transitions. [2020-09-24 23:52:44,666 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 95 transitions. Word has length 83 [2020-09-24 23:52:44,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:52:44,667 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 95 transitions. [2020-09-24 23:52:44,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-09-24 23:52:44,667 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 95 transitions. [2020-09-24 23:52:44,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-24 23:52:44,669 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:52:44,669 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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, 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 23:52:44,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:52:44,670 INFO L427 AbstractCegarLoop]: === Iteration 4 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:52:44,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:52:44,670 INFO L82 PathProgramCache]: Analyzing trace with hash -2001576911, now seen corresponding path program 1 times [2020-09-24 23:52:44,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:52:44,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1810912911] [2020-09-24 23:52:44,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:52:44,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 23:52:44,705 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 23:52:44,705 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 23:52:44,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:52:44,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 11:52:44 BoogieIcfgContainer [2020-09-24 23:52:44,733 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 23:52:44,736 INFO L168 Benchmark]: Toolchain (without parser) took 19821.15 ms. Allocated memory was 141.6 MB in the beginning and 375.4 MB in the end (delta: 233.8 MB). Free memory was 103.5 MB in the beginning and 250.1 MB in the end (delta: -146.6 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. [2020-09-24 23:52:44,737 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-24 23:52:44,738 INFO L168 Benchmark]: CACSL2BoogieTranslator took 824.22 ms. Allocated memory was 141.6 MB in the beginning and 206.0 MB in the end (delta: 64.5 MB). Free memory was 102.9 MB in the beginning and 168.9 MB in the end (delta: -66.0 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-09-24 23:52:44,739 INFO L168 Benchmark]: Boogie Preprocessor took 82.05 ms. Allocated memory is still 206.0 MB. Free memory was 168.9 MB in the beginning and 165.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2020-09-24 23:52:44,740 INFO L168 Benchmark]: RCFGBuilder took 838.03 ms. Allocated memory is still 206.0 MB. Free memory was 165.0 MB in the beginning and 101.1 MB in the end (delta: 63.9 MB). Peak memory consumption was 63.9 MB. Max. memory is 7.1 GB. [2020-09-24 23:52:44,741 INFO L168 Benchmark]: TraceAbstraction took 18067.02 ms. Allocated memory was 206.0 MB in the beginning and 375.4 MB in the end (delta: 169.3 MB). Free memory was 100.4 MB in the beginning and 250.1 MB in the end (delta: -149.7 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. [2020-09-24 23:52:44,745 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 824.22 ms. Allocated memory was 141.6 MB in the beginning and 206.0 MB in the end (delta: 64.5 MB). Free memory was 102.9 MB in the beginning and 168.9 MB in the end (delta: -66.0 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 82.05 ms. Allocated memory is still 206.0 MB. Free memory was 168.9 MB in the beginning and 165.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 838.03 ms. Allocated memory is still 206.0 MB. Free memory was 165.0 MB in the beginning and 101.1 MB in the end (delta: 63.9 MB). Peak memory consumption was 63.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18067.02 ms. Allocated memory was 206.0 MB in the beginning and 375.4 MB in the end (delta: 169.3 MB). Free memory was 100.4 MB in the beginning and 250.1 MB in the end (delta: -149.7 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 656]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L651] struct ldv_list_head s1 = { &(s1), &(s1) }; [L660] CALL foo() [L654] int j = __VERIFIER_nondet_int(); [L655] CALL ldv_set_add(j, &s1) [L622] CALL, EXPR ldv_is_in_set(new, s) [L640] struct ldv_list_element *m; [L641] EXPR (s)->next [L641] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L641] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L641] COND FALSE !(&m->list != (s)) [L646] return 0; [L622] RET, EXPR ldv_is_in_set(new, s) [L622] COND TRUE !ldv_is_in_set(new, s) [L623] struct ldv_list_element *le; [L624] CALL, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) [L565] void *ptr = malloc(size); [L566] CALL assume_abort_if_not(ptr!=0) [L554] COND FALSE !(!cond) [L566] RET assume_abort_if_not(ptr!=0) [L567] return ptr; [L624] RET, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) [L624] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L625] le->e = new [L626] CALL ldv_list_add(&le->list, s) [L594] EXPR head->next [L594] CALL __ldv_list_add(new, head, head->next) [L582] next->prev = new [L583] new->next = next [L584] new->prev = prev [L585] prev->next = new [L594] RET __ldv_list_add(new, head, head->next) [L626] RET ldv_list_add(&le->list, s) [L655] RET ldv_set_add(j, &s1) [L656] CALL ldv_is_in_set(j, &s1) [L640] struct ldv_list_element *m; [L641] EXPR (s)->next [L641] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L641] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L641] COND TRUE &m->list != (s) [L642] EXPR m->e [L642] COND TRUE m->e == e [L643] return 1; [L656] RET ldv_is_in_set(j, &s1) [L656] COND TRUE ldv_is_in_set(j, &s1) [L656] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 21 procedures, 181 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.9s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 234 SDtfs, 904 SDslu, 372 SDs, 0 SdLazy, 1918 SolverSat, 132 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 792 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred 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, 3 MinimizatonAttempts, 36 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 11.7s InterpolantComputationTime, 272 NumberOfCodeBlocks, 272 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 183 ConstructedInterpolants, 0 QuantifiedInterpolants, 69108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 22/32 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...