/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --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 [2020-09-25 04:24:05,708 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:24:05,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:24:05,738 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:24:05,739 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:24:05,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:24:05,742 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:24:05,744 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:24:05,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:24:05,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:24:05,748 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:24:05,749 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:24:05,749 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:24:05,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:24:05,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:24:05,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:24:05,754 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:24:05,755 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:24:05,757 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:24:05,760 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:24:05,765 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:24:05,767 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:24:05,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:24:05,769 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:24:05,776 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:24:05,776 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:24:05,776 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:24:05,779 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:24:05,780 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:24:05,781 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:24:05,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:24:05,784 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:24:05,785 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:24:05,787 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:24:05,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:24:05,789 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:24:05,790 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:24:05,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:24:05,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:24:05,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:24:05,794 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:24:05,795 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 [2020-09-25 04:24:05,839 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:24:05,840 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:24:05,842 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:24:05,842 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:24:05,842 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:24:05,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:24:05,843 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:24:05,843 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:24:05,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:24:05,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:24:05,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:24:05,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:24:05,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:24:05,846 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:24:05,846 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:24:05,846 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:24:05,846 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:24:05,847 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:24:05,847 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:24:05,847 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:24:05,847 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:24:05,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:24:05,848 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:24:05,848 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:24:05,848 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:24:05,848 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:24:05,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:24:05,849 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:24:05,849 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:24:05,849 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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:24:06,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:24:06,398 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:24:06,403 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:24:06,405 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:24:06,405 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:24:06,407 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_add-1.i [2020-09-25 04:24:06,503 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a10aa0edc/b02a71a277fc4017a33b5f79c5c2ac43/FLAG2a912b23b [2020-09-25 04:24:07,147 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:24:07,148 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-sets/test_add-1.i [2020-09-25 04:24:07,164 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a10aa0edc/b02a71a277fc4017a33b5f79c5c2ac43/FLAG2a912b23b [2020-09-25 04:24:07,392 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a10aa0edc/b02a71a277fc4017a33b5f79c5c2ac43 [2020-09-25 04:24:07,407 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:24:07,414 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:24:07,418 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:24:07,418 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:24:07,423 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:24:07,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:24:07" (1/1) ... [2020-09-25 04:24:07,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e5a69aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:24:07, skipping insertion in model container [2020-09-25 04:24:07,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:24:07" (1/1) ... [2020-09-25 04:24:07,440 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:24:07,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:24:08,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:24:08,123 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:24:08,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:24:08,270 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:24:08,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:24:08 WrapperNode [2020-09-25 04:24:08,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:24:08,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:24:08,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:24:08,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:24:08,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:24:08" (1/1) ... [2020-09-25 04:24:08,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:24:08" (1/1) ... [2020-09-25 04:24:08,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:24:08" (1/1) ... [2020-09-25 04:24:08,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:24:08" (1/1) ... [2020-09-25 04:24:08,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:24:08" (1/1) ... [2020-09-25 04:24:08,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:24:08" (1/1) ... [2020-09-25 04:24:08,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:24:08" (1/1) ... [2020-09-25 04:24:08,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:24:08,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:24:08,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:24:08,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:24:08,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:24:08" (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 [2020-09-25 04:24:08,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:24:08,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:24:08,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-25 04:24:08,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-25 04:24:08,447 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 04:24:08,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 04:24:08,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-09-25 04:24:08,448 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-09-25 04:24:08,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-09-25 04:24:08,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-09-25 04:24:08,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-09-25 04:24:08,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-09-25 04:24:08,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-09-25 04:24:08,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-09-25 04:24:08,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-09-25 04:24:08,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-25 04:24:08,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-09-25 04:24:08,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-09-25 04:24:08,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-09-25 04:24:08,450 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-09-25 04:24:08,451 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:24:08,451 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-25 04:24:08,451 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-25 04:24:08,451 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 04:24:08,451 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 04:24:08,451 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 04:24:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 04:24:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 04:24:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 04:24:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 04:24:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 04:24:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 04:24:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 04:24:08,453 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 04:24:08,453 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 04:24:08,453 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 04:24:08,453 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 04:24:08,453 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 04:24:08,454 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 04:24:08,454 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 04:24:08,454 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 04:24:08,454 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 04:24:08,454 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 04:24:08,454 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 04:24:08,454 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 04:24:08,455 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 04:24:08,455 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 04:24:08,455 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 04:24:08,455 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 04:24:08,455 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 04:24:08,455 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 04:24:08,455 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 04:24:08,455 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 04:24:08,456 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 04:24:08,456 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 04:24:08,456 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 04:24:08,456 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 04:24:08,456 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 04:24:08,456 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 04:24:08,456 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 04:24:08,457 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 04:24:08,457 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 04:24:08,457 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 04:24:08,457 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 04:24:08,457 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 04:24:08,457 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 04:24:08,458 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 04:24:08,458 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 04:24:08,458 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 04:24:08,458 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 04:24:08,458 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 04:24:08,458 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 04:24:08,459 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 04:24:08,459 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:24:08,459 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 04:24:08,459 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 04:24:08,459 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:24:08,459 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 04:24:08,460 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 04:24:08,460 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 04:24:08,460 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 04:24:08,460 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 04:24:08,460 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 04:24:08,460 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 04:24:08,460 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 04:24:08,461 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 04:24:08,461 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 04:24:08,461 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 04:24:08,461 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 04:24:08,461 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 04:24:08,461 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 04:24:08,461 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 04:24:08,461 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 04:24:08,462 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 04:24:08,462 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 04:24:08,462 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 04:24:08,462 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 04:24:08,462 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 04:24:08,462 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 04:24:08,462 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 04:24:08,462 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 04:24:08,462 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 04:24:08,463 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 04:24:08,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 04:24:08,463 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 04:24:08,463 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 04:24:08,463 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 04:24:08,463 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 04:24:08,463 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 04:24:08,464 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 04:24:08,464 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 04:24:08,464 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 04:24:08,464 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 04:24:08,464 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 04:24:08,464 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 04:24:08,465 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 04:24:08,465 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 04:24:08,465 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 04:24:08,465 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 04:24:08,465 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 04:24:08,465 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 04:24:08,466 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 04:24:08,466 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 04:24:08,466 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:24:08,466 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 04:24:08,466 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:24:08,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 04:24:08,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:24:08,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-09-25 04:24:08,467 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-09-25 04:24:08,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:24:08,467 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-09-25 04:24:08,467 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-09-25 04:24:08,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-09-25 04:24:08,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:24:08,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-09-25 04:24:08,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-09-25 04:24:08,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-09-25 04:24:08,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-09-25 04:24:08,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-25 04:24:08,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-09-25 04:24:08,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-09-25 04:24:08,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-09-25 04:24:08,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:24:08,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:24:08,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:24:08,470 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-09-25 04:24:08,470 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:24:08,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:24:08,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 04:24:08,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 04:24:08,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:24:09,246 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:24:09,246 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-25 04:24:09,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:24:09 BoogieIcfgContainer [2020-09-25 04:24:09,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:24:09,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:24:09,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:24:09,258 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:24:09,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:24:07" (1/3) ... [2020-09-25 04:24:09,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@328e8f80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:24:09, skipping insertion in model container [2020-09-25 04:24:09,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:24:08" (2/3) ... [2020-09-25 04:24:09,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@328e8f80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:24:09, skipping insertion in model container [2020-09-25 04:24:09,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:24:09" (3/3) ... [2020-09-25 04:24:09,262 INFO L109 eAbstractionObserver]: Analyzing ICFG test_add-1.i [2020-09-25 04:24:09,275 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:24:09,286 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:24:09,308 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:24:09,335 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:24:09,336 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:24:09,336 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:24:09,336 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:24:09,336 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:24:09,336 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:24:09,336 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:24:09,337 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:24:09,363 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2020-09-25 04:24:09,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-25 04:24:09,373 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:09,375 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] [2020-09-25 04:24:09,376 INFO L427 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:24:09,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:09,384 INFO L82 PathProgramCache]: Analyzing trace with hash -773204813, now seen corresponding path program 1 times [2020-09-25 04:24:09,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:09,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853915880] [2020-09-25 04:24:09,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:09,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:09,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:09,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:10,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:10,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 04:24:10,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:24:10,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 710 [2020-09-25 04:24:10,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:10,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:10,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:24:10,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-09-25 04:24:10,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 04:24:10,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:24:10,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:10,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:10,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:10,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:10,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 04:24:10,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:10,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 04:24:10,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:10,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:10,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:10,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:10,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:10,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:10,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 04:24:10,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:10,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:10,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:10,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:24:10,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:10,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 04:24:10,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:10,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:10,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:24:10,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 04:24:10,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 04:24:10,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:10,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:24:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:10,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:10,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:10,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 04:24:10,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:10,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 04:24:10,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:10,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:10,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:24:10,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:10,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 04:24:10,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:10,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 04:24:10,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:10,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:10,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:10,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 04:24:10,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:10,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 04:24:10,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:10,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:10,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:10,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 04:24:10,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:10,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:10,672 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 04:24:10,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [853915880] [2020-09-25 04:24:10,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:24:10,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 04:24:10,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119709970] [2020-09-25 04:24:10,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:24:10,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:10,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:24:10,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:24:10,707 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 6 states. [2020-09-25 04:24:11,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:11,341 INFO L93 Difference]: Finished difference Result 184 states and 205 transitions. [2020-09-25 04:24:11,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:24:11,345 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2020-09-25 04:24:11,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:11,365 INFO L225 Difference]: With dead ends: 184 [2020-09-25 04:24:11,365 INFO L226 Difference]: Without dead ends: 95 [2020-09-25 04:24:11,372 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:24:11,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-09-25 04:24:11,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 87. [2020-09-25 04:24:11,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-09-25 04:24:11,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 91 transitions. [2020-09-25 04:24:11,450 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 91 transitions. Word has length 50 [2020-09-25 04:24:11,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:11,451 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 91 transitions. [2020-09-25 04:24:11,451 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:24:11,451 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 91 transitions. [2020-09-25 04:24:11,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 04:24:11,455 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:11,456 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] [2020-09-25 04:24:11,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:24:11,456 INFO L427 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:24:11,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:11,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1962919132, now seen corresponding path program 1 times [2020-09-25 04:24:11,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:11,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1004890224] [2020-09-25 04:24:11,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:11,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:11,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:11,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:12,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:16,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:16,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 04:24:16,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:24:16,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 04:24:16,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:16,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:16,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:24:16,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-09-25 04:24:16,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 04:24:16,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:16,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:16,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:16,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:16,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:16,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 04:24:16,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:16,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 04:24:16,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:16,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:16,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:16,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:16,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:16,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:16,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 04:24:16,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:16,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:16,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:16,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 04:24:16,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:16,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 04:24:16,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:16,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:16,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:16,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:16,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:16,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:16,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:24:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:16,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:16,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:16,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 04:24:16,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:16,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:24:16,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:16,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:16,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:16,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:16,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:16,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:16,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 04:24:16,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:16,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:16,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:16,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 04:24:16,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:16,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 04:24:16,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:16,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:16,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:24:16,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:16,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 04:24:16,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:16,706 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-25 04:24:16,707 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1004890224] [2020-09-25 04:24:16,707 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:24:16,707 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:24:16,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728423244] [2020-09-25 04:24:16,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:24:16,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:16,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:24:16,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:24:16,711 INFO L87 Difference]: Start difference. First operand 87 states and 91 transitions. Second operand 6 states. [2020-09-25 04:24:17,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:17,083 INFO L93 Difference]: Finished difference Result 102 states and 106 transitions. [2020-09-25 04:24:17,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 04:24:17,083 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2020-09-25 04:24:17,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:17,086 INFO L225 Difference]: With dead ends: 102 [2020-09-25 04:24:17,086 INFO L226 Difference]: Without dead ends: 95 [2020-09-25 04:24:17,088 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:24:17,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-09-25 04:24:17,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 87. [2020-09-25 04:24:17,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-09-25 04:24:17,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 90 transitions. [2020-09-25 04:24:17,101 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 90 transitions. Word has length 53 [2020-09-25 04:24:17,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:17,102 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 90 transitions. [2020-09-25 04:24:17,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:24:17,102 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 90 transitions. [2020-09-25 04:24:17,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 04:24:17,104 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:17,104 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2020-09-25 04:24:17,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:24:17,105 INFO L427 AbstractCegarLoop]: === Iteration 3 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:24:17,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:17,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1545179603, now seen corresponding path program 1 times [2020-09-25 04:24:17,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:17,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [249006732] [2020-09-25 04:24:17,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:17,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:17,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:17,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:20,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:20,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 04:24:20,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:24:20,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3671 [2020-09-25 04:24:20,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:20,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:20,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 04:24:20,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 04:24:20,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 04:24:20,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 04:24:20,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:20,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:20,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:20,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:20,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 04:24:20,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:20,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 04:24:20,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:20,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:20,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:24:20,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:20,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:24:20,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:20,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 04:24:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:20,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:21,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:21,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:21,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 04:24:21,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:24:21,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-25 04:24:21,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:21,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:21,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:24:21,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:24:21,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 04:24:21,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:21,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:24:21,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:21,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:21,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:21,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 04:24:21,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:21,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 04:24:21,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:21,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:21,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:24:21,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:21,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 04:24:21,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:21,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 04:24:21,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:21,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:21,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:21,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 04:24:21,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:21,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 04:24:21,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:21,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:21,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:24:21,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 04:24:21,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 04:24:21,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:21,524 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 04:24:21,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [249006732] [2020-09-25 04:24:21,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:24:21,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 04:24:21,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893455119] [2020-09-25 04:24:21,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 04:24:21,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:21,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 04:24:21,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:24:21,528 INFO L87 Difference]: Start difference. First operand 87 states and 90 transitions. Second operand 11 states. [2020-09-25 04:24:21,917 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2020-09-25 04:24:22,113 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 65 [2020-09-25 04:24:22,302 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 74 [2020-09-25 04:24:22,967 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-09-25 04:24:23,193 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 59 [2020-09-25 04:24:23,360 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 68 [2020-09-25 04:24:23,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:23,501 INFO L93 Difference]: Finished difference Result 147 states and 154 transitions. [2020-09-25 04:24:23,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-25 04:24:23,502 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2020-09-25 04:24:23,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:23,504 INFO L225 Difference]: With dead ends: 147 [2020-09-25 04:24:23,504 INFO L226 Difference]: Without dead ends: 132 [2020-09-25 04:24:23,506 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=227, Invalid=529, Unknown=0, NotChecked=0, Total=756 [2020-09-25 04:24:23,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-09-25 04:24:23,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 101. [2020-09-25 04:24:23,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-09-25 04:24:23,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 103 transitions. [2020-09-25 04:24:23,519 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 103 transitions. Word has length 56 [2020-09-25 04:24:23,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:23,520 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 103 transitions. [2020-09-25 04:24:23,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 04:24:23,520 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 103 transitions. [2020-09-25 04:24:23,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 04:24:23,523 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:23,523 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] [2020-09-25 04:24:23,524 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:24:23,524 INFO L427 AbstractCegarLoop]: === Iteration 4 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:24:23,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:23,524 INFO L82 PathProgramCache]: Analyzing trace with hash -2001576911, now seen corresponding path program 1 times [2020-09-25 04:24:23,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:23,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [783501096] [2020-09-25 04:24:23,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 04:24:23,576 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 04:24:23,576 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 04:24:23,581 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:24:23,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 04:24:23 BoogieIcfgContainer [2020-09-25 04:24:23,605 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 04:24:23,608 INFO L168 Benchmark]: Toolchain (without parser) took 16198.84 ms. Allocated memory was 138.9 MB in the beginning and 374.9 MB in the end (delta: 235.9 MB). Free memory was 101.0 MB in the beginning and 169.5 MB in the end (delta: -68.5 MB). Peak memory consumption was 167.4 MB. Max. memory is 7.1 GB. [2020-09-25 04:24:23,608 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 04:24:23,609 INFO L168 Benchmark]: CACSL2BoogieTranslator took 853.48 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 100.4 MB in the beginning and 164.0 MB in the end (delta: -63.7 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-09-25 04:24:23,610 INFO L168 Benchmark]: Boogie Preprocessor took 87.67 ms. Allocated memory is still 201.9 MB. Free memory was 164.0 MB in the beginning and 160.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2020-09-25 04:24:23,611 INFO L168 Benchmark]: RCFGBuilder took 892.67 ms. Allocated memory is still 201.9 MB. Free memory was 160.6 MB in the beginning and 96.3 MB in the end (delta: 64.4 MB). Peak memory consumption was 64.4 MB. Max. memory is 7.1 GB. [2020-09-25 04:24:23,612 INFO L168 Benchmark]: TraceAbstraction took 14351.61 ms. Allocated memory was 201.9 MB in the beginning and 374.9 MB in the end (delta: 173.0 MB). Free memory was 95.6 MB in the beginning and 169.5 MB in the end (delta: -73.9 MB). Peak memory consumption was 99.1 MB. Max. memory is 7.1 GB. [2020-09-25 04:24:23,616 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 853.48 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 100.4 MB in the beginning and 164.0 MB in the end (delta: -63.7 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.67 ms. Allocated memory is still 201.9 MB. Free memory was 164.0 MB in the beginning and 160.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 892.67 ms. Allocated memory is still 201.9 MB. Free memory was 160.6 MB in the beginning and 96.3 MB in the end (delta: 64.4 MB). Peak memory consumption was 64.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14351.61 ms. Allocated memory was 201.9 MB in the beginning and 374.9 MB in the end (delta: 173.0 MB). Free memory was 95.6 MB in the beginning and 169.5 MB in the end (delta: -73.9 MB). Peak memory consumption was 99.1 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: 14.2s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 236 SDtfs, 659 SDslu, 206 SDs, 0 SdLazy, 678 SolverSat, 110 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=101occurred in iteration=3, 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, 47 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 10.6s InterpolantComputationTime, 245 NumberOfCodeBlocks, 245 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 156 ConstructedInterpolants, 0 QuantifiedInterpolants, 38537 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 33/35 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...