/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 09:15:26,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 09:15:26,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 09:15:26,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 09:15:26,179 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 09:15:26,181 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 09:15:26,183 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 09:15:26,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 09:15:26,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 09:15:26,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 09:15:26,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 09:15:26,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 09:15:26,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 09:15:26,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 09:15:26,196 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 09:15:26,198 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 09:15:26,199 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 09:15:26,200 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 09:15:26,203 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 09:15:26,205 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 09:15:26,207 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 09:15:26,209 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 09:15:26,211 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 09:15:26,212 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 09:15:26,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 09:15:26,227 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 09:15:26,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 09:15:26,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 09:15:26,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 09:15:26,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 09:15:26,232 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 09:15:26,233 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 09:15:26,234 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 09:15:26,235 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 09:15:26,237 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 09:15:26,237 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 09:15:26,238 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 09:15:26,238 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 09:15:26,239 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 09:15:26,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 09:15:26,241 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 09:15:26,242 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 09:15:26,271 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 09:15:26,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 09:15:26,273 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 09:15:26,273 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 09:15:26,273 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 09:15:26,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 09:15:26,274 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 09:15:26,274 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 09:15:26,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 09:15:26,275 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 09:15:26,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 09:15:26,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 09:15:26,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 09:15:26,275 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 09:15:26,276 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 09:15:26,276 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 09:15:26,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 09:15:26,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 09:15:26,277 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 09:15:26,277 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 09:15:26,277 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 09:15:26,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 09:15:26,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 09:15:26,278 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 09:15:26,278 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 09:15:26,278 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 09:15:26,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 09:15:26,279 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 09:15:26,279 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 09:15:26,279 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 09:15:26,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 09:15:26,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 09:15:26,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 09:15:26,674 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 09:15:26,674 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 09:15:26,675 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-2.i [2020-10-29 09:15:26,753 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9616eb565/51937aebbfc84676950f790360db9add/FLAG9d21b617e [2020-10-29 09:15:27,468 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 09:15:27,468 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-2.i [2020-10-29 09:15:27,491 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9616eb565/51937aebbfc84676950f790360db9add/FLAG9d21b617e [2020-10-29 09:15:27,694 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9616eb565/51937aebbfc84676950f790360db9add [2020-10-29 09:15:27,700 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 09:15:27,709 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 09:15:27,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 09:15:27,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 09:15:27,717 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 09:15:27,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:15:27" (1/1) ... [2020-10-29 09:15:27,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73754f14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:15:27, skipping insertion in model container [2020-10-29 09:15:27,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:15:27" (1/1) ... [2020-10-29 09:15:27,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 09:15:27,807 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 09:15:28,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:15:28,318 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 09:15:28,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:15:28,625 INFO L208 MainTranslator]: Completed translation [2020-10-29 09:15:28,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:15:28 WrapperNode [2020-10-29 09:15:28,625 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 09:15:28,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 09:15:28,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 09:15:28,627 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 09:15:28,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:15:28" (1/1) ... [2020-10-29 09:15:28,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:15:28" (1/1) ... [2020-10-29 09:15:28,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:15:28" (1/1) ... [2020-10-29 09:15:28,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:15:28" (1/1) ... [2020-10-29 09:15:28,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:15:28" (1/1) ... [2020-10-29 09:15:28,759 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:15:28" (1/1) ... [2020-10-29 09:15:28,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:15:28" (1/1) ... [2020-10-29 09:15:28,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 09:15:28,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 09:15:28,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 09:15:28,779 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 09:15:28,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:15:28" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 09:15:28,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 09:15:28,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 09:15:28,864 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 09:15:28,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-29 09:15:28,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-29 09:15:28,865 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-10-29 09:15:28,865 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2020-10-29 09:15:28,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-10-29 09:15:28,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2020-10-29 09:15:28,866 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-10-29 09:15:28,866 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2020-10-29 09:15:28,866 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2020-10-29 09:15:28,866 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2020-10-29 09:15:28,866 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2020-10-29 09:15:28,866 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2020-10-29 09:15:28,867 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2020-10-29 09:15:28,867 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2020-10-29 09:15:28,867 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 09:15:28,867 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 09:15:28,867 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 09:15:28,867 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-29 09:15:28,868 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-29 09:15:28,868 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 09:15:28,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 09:15:28,868 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-29 09:15:28,868 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-29 09:15:28,868 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-29 09:15:28,869 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-29 09:15:28,869 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-29 09:15:28,869 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-29 09:15:28,869 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-29 09:15:28,869 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-29 09:15:28,869 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-29 09:15:28,869 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-29 09:15:28,870 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-29 09:15:28,870 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-29 09:15:28,870 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-29 09:15:28,870 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-29 09:15:28,870 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-29 09:15:28,870 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-29 09:15:28,870 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-29 09:15:28,871 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-29 09:15:28,871 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-29 09:15:28,871 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-29 09:15:28,871 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-29 09:15:28,871 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-29 09:15:28,871 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-29 09:15:28,872 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-29 09:15:28,872 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-29 09:15:28,872 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-29 09:15:28,872 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-29 09:15:28,872 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-29 09:15:28,872 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-29 09:15:28,873 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-29 09:15:28,873 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-29 09:15:28,873 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-29 09:15:28,873 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-29 09:15:28,873 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-29 09:15:28,873 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-29 09:15:28,874 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-29 09:15:28,874 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-29 09:15:28,874 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-29 09:15:28,874 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-29 09:15:28,874 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-29 09:15:28,874 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-29 09:15:28,875 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-29 09:15:28,875 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-29 09:15:28,875 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-29 09:15:28,875 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-29 09:15:28,875 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-29 09:15:28,875 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-29 09:15:28,876 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-29 09:15:28,876 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-29 09:15:28,876 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-29 09:15:28,876 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-29 09:15:28,876 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-29 09:15:28,876 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 09:15:28,877 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-29 09:15:28,877 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-29 09:15:28,877 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-29 09:15:28,877 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-29 09:15:28,877 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-29 09:15:28,877 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-29 09:15:28,878 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-29 09:15:28,878 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-29 09:15:28,878 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-29 09:15:28,878 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 09:15:28,878 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-29 09:15:28,878 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-29 09:15:28,878 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-29 09:15:28,879 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-29 09:15:28,879 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-29 09:15:28,879 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-29 09:15:28,879 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-29 09:15:28,879 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-29 09:15:28,879 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-29 09:15:28,880 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-29 09:15:28,880 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-29 09:15:28,880 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-29 09:15:28,880 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-29 09:15:28,880 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-29 09:15:28,880 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-29 09:15:28,881 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-29 09:15:28,881 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-29 09:15:28,881 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-29 09:15:28,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-29 09:15:28,881 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-29 09:15:28,881 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-29 09:15:28,881 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-29 09:15:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-29 09:15:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-29 09:15:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-29 09:15:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-29 09:15:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-29 09:15:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-29 09:15:28,883 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-29 09:15:28,883 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-29 09:15:28,883 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-29 09:15:28,883 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-29 09:15:28,883 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-29 09:15:28,883 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-29 09:15:28,884 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-29 09:15:28,884 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-29 09:15:28,884 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-29 09:15:28,884 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-29 09:15:28,884 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-10-29 09:15:28,884 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-10-29 09:15:28,885 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-10-29 09:15:28,885 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-10-29 09:15:28,885 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-10-29 09:15:28,885 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-10-29 09:15:28,885 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-10-29 09:15:28,885 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-10-29 09:15:28,886 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-10-29 09:15:28,886 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-10-29 09:15:28,886 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-10-29 09:15:28,886 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-10-29 09:15:28,886 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-10-29 09:15:28,886 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-10-29 09:15:28,887 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-10-29 09:15:28,887 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-10-29 09:15:28,887 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-10-29 09:15:28,887 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-10-29 09:15:28,887 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-10-29 09:15:28,887 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-10-29 09:15:28,887 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-10-29 09:15:28,888 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-10-29 09:15:28,888 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-10-29 09:15:28,888 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-10-29 09:15:28,888 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-10-29 09:15:28,888 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-10-29 09:15:28,888 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-10-29 09:15:28,888 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-10-29 09:15:28,889 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-10-29 09:15:28,889 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-10-29 09:15:28,889 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-10-29 09:15:28,889 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-10-29 09:15:28,889 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-10-29 09:15:28,889 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-10-29 09:15:28,890 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-10-29 09:15:28,890 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-10-29 09:15:28,890 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-10-29 09:15:28,890 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-10-29 09:15:28,890 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-29 09:15:28,890 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-10-29 09:15:28,890 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-10-29 09:15:28,891 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-10-29 09:15:28,891 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-10-29 09:15:28,891 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-29 09:15:28,891 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-10-29 09:15:28,891 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-10-29 09:15:28,891 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-10-29 09:15:28,891 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-10-29 09:15:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-10-29 09:15:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-10-29 09:15:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-10-29 09:15:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-10-29 09:15:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-10-29 09:15:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-10-29 09:15:28,893 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-10-29 09:15:28,893 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-10-29 09:15:28,893 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-10-29 09:15:28,893 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-10-29 09:15:28,893 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-10-29 09:15:28,893 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-10-29 09:15:28,894 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-10-29 09:15:28,894 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-10-29 09:15:28,894 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-10-29 09:15:28,894 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-10-29 09:15:28,894 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-10-29 09:15:28,894 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-10-29 09:15:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-10-29 09:15:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-10-29 09:15:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-10-29 09:15:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-10-29 09:15:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-10-29 09:15:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-10-29 09:15:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-10-29 09:15:28,896 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-10-29 09:15:28,896 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-10-29 09:15:28,896 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-10-29 09:15:28,896 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-10-29 09:15:28,896 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-10-29 09:15:28,896 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-10-29 09:15:28,896 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-10-29 09:15:28,897 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-10-29 09:15:28,897 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-10-29 09:15:28,897 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-10-29 09:15:28,897 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-10-29 09:15:28,897 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-10-29 09:15:28,897 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-10-29 09:15:28,897 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-10-29 09:15:28,898 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-10-29 09:15:28,898 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-10-29 09:15:28,898 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-10-29 09:15:28,898 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-10-29 09:15:28,898 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-10-29 09:15:28,898 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-10-29 09:15:28,898 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-10-29 09:15:28,899 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-10-29 09:15:28,899 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-10-29 09:15:28,899 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-10-29 09:15:28,899 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-10-29 09:15:28,899 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-10-29 09:15:28,899 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-10-29 09:15:28,899 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-10-29 09:15:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 09:15:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-10-29 09:15:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2020-10-29 09:15:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-29 09:15:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-10-29 09:15:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-29 09:15:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2020-10-29 09:15:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-10-29 09:15:28,901 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2020-10-29 09:15:28,901 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2020-10-29 09:15:28,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 09:15:28,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 09:15:28,901 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2020-10-29 09:15:28,901 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2020-10-29 09:15:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 09:15:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2020-10-29 09:15:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 09:15:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2020-10-29 09:15:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2020-10-29 09:15:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 09:15:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 09:15:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 09:15:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-29 09:15:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 09:15:30,196 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 09:15:30,196 INFO L298 CfgBuilder]: Removed 41 assume(true) statements. [2020-10-29 09:15:30,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:15:30 BoogieIcfgContainer [2020-10-29 09:15:30,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 09:15:30,201 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 09:15:30,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 09:15:30,205 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 09:15:30,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 09:15:27" (1/3) ... [2020-10-29 09:15:30,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60cf41f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:15:30, skipping insertion in model container [2020-10-29 09:15:30,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:15:28" (2/3) ... [2020-10-29 09:15:30,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60cf41f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:15:30, skipping insertion in model container [2020-10-29 09:15:30,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:15:30" (3/3) ... [2020-10-29 09:15:30,209 INFO L111 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-2.i [2020-10-29 09:15:30,224 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 09:15:30,230 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 09:15:30,247 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 09:15:30,281 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 09:15:30,281 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 09:15:30,281 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 09:15:30,281 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 09:15:30,281 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 09:15:30,282 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 09:15:30,282 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 09:15:30,282 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 09:15:30,307 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states. [2020-10-29 09:15:30,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-29 09:15:30,314 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:15:30,315 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:15:30,316 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:15:30,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:15:30,324 INFO L82 PathProgramCache]: Analyzing trace with hash -246079649, now seen corresponding path program 1 times [2020-10-29 09:15:30,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:15:30,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1641856034] [2020-10-29 09:15:30,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:15:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:30,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:30,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:30,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:30,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 09:15:30,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:15:30,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 382 [2020-10-29 09:15:30,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:30,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:30,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:15:30,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 09:15:30,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 09:15:30,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 09:15:31,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:15:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:31,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:31,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:31,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:15:31,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:31,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 09:15:31,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:31,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:31,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:15:31,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:15:31,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 09:15:31,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:15:31,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 09:15:31,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:31,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:31,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:31,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:31,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:15:31,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:15:31,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 09:15:31,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:31,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:31,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:15:31,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:15:31,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 09:15:31,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:15:31,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:15:31,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1641856034] [2020-10-29 09:15:31,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:15:31,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 09:15:31,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76053490] [2020-10-29 09:15:31,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 09:15:31,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:15:31,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 09:15:31,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-29 09:15:31,184 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 7 states. [2020-10-29 09:15:32,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:15:32,983 INFO L93 Difference]: Finished difference Result 308 states and 497 transitions. [2020-10-29 09:15:32,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 09:15:32,985 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-10-29 09:15:32,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:15:32,998 INFO L225 Difference]: With dead ends: 308 [2020-10-29 09:15:32,998 INFO L226 Difference]: Without dead ends: 149 [2020-10-29 09:15:33,005 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-29 09:15:33,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-10-29 09:15:33,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 131. [2020-10-29 09:15:33,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-10-29 09:15:33,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 151 transitions. [2020-10-29 09:15:33,076 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 151 transitions. Word has length 16 [2020-10-29 09:15:33,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:15:33,076 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 151 transitions. [2020-10-29 09:15:33,076 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 09:15:33,076 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 151 transitions. [2020-10-29 09:15:33,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-29 09:15:33,079 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:15:33,079 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:15:33,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 09:15:33,079 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:15:33,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:15:33,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1176936722, now seen corresponding path program 1 times [2020-10-29 09:15:33,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:15:33,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1593747490] [2020-10-29 09:15:33,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:15:33,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:33,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:33,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:33,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-29 09:15:33,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:33,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 591 [2020-10-29 09:15:33,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:33,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:33,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 09:15:33,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 09:15:33,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-29 09:15:33,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:33,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:15:33,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:33,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:33,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:33,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:15:33,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:33,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 09:15:33,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:33,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:33,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:15:33,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:15:33,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 09:15:33,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:15:33,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 09:15:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:34,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:34,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:34,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-29 09:15:34,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:34,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-10-29 09:15:34,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:34,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:34,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 09:15:34,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:15:34,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-29 09:15:34,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:34,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:15:34,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:34,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:34,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:34,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 09:15:34,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:34,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-29 09:15:34,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:34,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:34,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 09:15:34,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:15:34,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-29 09:15:34,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:34,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-29 09:15:34,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:34,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:34,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:34,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 09:15:34,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:34,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-29 09:15:34,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:34,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:34,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 09:15:34,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:15:34,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 09:15:34,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:15:34,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:15:34,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:34,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:34,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:34,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:15:34,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:34,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 09:15:34,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:34,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:34,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:15:34,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:15:34,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:15:34,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:15:34,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:15:34,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1593747490] [2020-10-29 09:15:34,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:15:34,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-29 09:15:34,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990591094] [2020-10-29 09:15:34,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 09:15:34,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:15:34,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 09:15:34,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2020-10-29 09:15:34,923 INFO L87 Difference]: Start difference. First operand 131 states and 151 transitions. Second operand 16 states. [2020-10-29 09:15:35,590 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-29 09:15:36,487 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-10-29 09:15:36,726 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2020-10-29 09:15:37,105 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2020-10-29 09:15:37,406 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2020-10-29 09:15:37,675 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2020-10-29 09:15:37,965 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2020-10-29 09:15:41,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:15:41,191 INFO L93 Difference]: Finished difference Result 250 states and 297 transitions. [2020-10-29 09:15:41,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-29 09:15:41,193 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 39 [2020-10-29 09:15:41,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:15:41,196 INFO L225 Difference]: With dead ends: 250 [2020-10-29 09:15:41,196 INFO L226 Difference]: Without dead ends: 242 [2020-10-29 09:15:41,199 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=212, Invalid=910, Unknown=0, NotChecked=0, Total=1122 [2020-10-29 09:15:41,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-10-29 09:15:41,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 211. [2020-10-29 09:15:41,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-10-29 09:15:41,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 253 transitions. [2020-10-29 09:15:41,242 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 253 transitions. Word has length 39 [2020-10-29 09:15:41,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:15:41,243 INFO L481 AbstractCegarLoop]: Abstraction has 211 states and 253 transitions. [2020-10-29 09:15:41,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 09:15:41,243 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 253 transitions. [2020-10-29 09:15:41,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-29 09:15:41,244 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:15:41,245 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:15:41,245 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 09:15:41,245 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:15:41,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:15:41,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1868463441, now seen corresponding path program 1 times [2020-10-29 09:15:41,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:15:41,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1462780416] [2020-10-29 09:15:41,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:15:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:41,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:42,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:42,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-29 09:15:42,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:42,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 857 [2020-10-29 09:15:42,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:42,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:42,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-29 09:15:42,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 09:15:42,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-29 09:15:42,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:42,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:15:42,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:42,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:42,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:42,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:15:42,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:42,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 09:15:42,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:42,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:42,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:15:42,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:15:42,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 09:15:42,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:42,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 09:15:42,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:42,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:42,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:42,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-29 09:15:42,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:42,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 354 [2020-10-29 09:15:42,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:42,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:42,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 09:15:42,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:15:42,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 09:15:42,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:42,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:15:42,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:43,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:43,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:43,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 09:15:43,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:43,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-10-29 09:15:43,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:43,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:43,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 09:15:43,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:15:43,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 09:15:43,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 09:15:43,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-29 09:15:43,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:43,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:43,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:43,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 09:15:43,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:43,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-29 09:15:43,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:43,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:43,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 09:15:43,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:15:43,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 09:15:43,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:43,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:15:43,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:43,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:43,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:43,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:15:43,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:43,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 09:15:43,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:43,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:43,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:15:43,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:15:43,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:15:43,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:15:43,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:15:43,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1462780416] [2020-10-29 09:15:43,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:15:43,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-29 09:15:43,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400934027] [2020-10-29 09:15:43,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 09:15:43,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:15:43,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 09:15:43,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2020-10-29 09:15:43,930 INFO L87 Difference]: Start difference. First operand 211 states and 253 transitions. Second operand 19 states. [2020-10-29 09:15:44,728 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-29 09:15:46,020 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-29 09:15:46,413 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-10-29 09:15:46,711 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-29 09:15:50,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:15:50,277 INFO L93 Difference]: Finished difference Result 335 states and 405 transitions. [2020-10-29 09:15:50,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-29 09:15:50,278 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 42 [2020-10-29 09:15:50,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:15:50,282 INFO L225 Difference]: With dead ends: 335 [2020-10-29 09:15:50,282 INFO L226 Difference]: Without dead ends: 330 [2020-10-29 09:15:50,284 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=211, Invalid=1195, Unknown=0, NotChecked=0, Total=1406 [2020-10-29 09:15:50,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-10-29 09:15:50,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 292. [2020-10-29 09:15:50,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-10-29 09:15:50,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 355 transitions. [2020-10-29 09:15:50,361 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 355 transitions. Word has length 42 [2020-10-29 09:15:50,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:15:50,361 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 355 transitions. [2020-10-29 09:15:50,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 09:15:50,361 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 355 transitions. [2020-10-29 09:15:50,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-29 09:15:50,365 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:15:50,365 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:15:50,365 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 09:15:50,366 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:15:50,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:15:50,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1056603810, now seen corresponding path program 1 times [2020-10-29 09:15:50,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:15:50,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2135128217] [2020-10-29 09:15:50,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:15:50,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:50,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:51,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:51,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-29 09:15:51,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:51,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 750 [2020-10-29 09:15:51,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:51,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:51,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-29 09:15:51,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 09:15:51,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-29 09:15:51,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:51,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:15:51,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:51,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:51,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:51,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:15:51,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:51,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 09:15:51,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:51,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:51,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:15:51,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:15:51,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 09:15:51,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:51,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 09:15:51,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:51,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:51,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:51,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-29 09:15:51,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:51,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-10-29 09:15:51,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:51,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:51,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 09:15:51,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:15:51,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 09:15:51,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:51,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:15:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:51,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:52,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:52,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 09:15:52,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:52,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-10-29 09:15:52,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:52,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:52,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 09:15:52,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:15:52,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 09:15:52,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:52,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-29 09:15:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:52,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:52,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:52,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 09:15:52,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:52,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-29 09:15:52,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:52,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:52,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 09:15:52,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:15:52,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 09:15:52,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:52,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:15:52,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:52,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:52,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:52,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:15:52,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:52,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 09:15:52,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:52,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:52,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:15:52,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:15:52,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:15:52,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:15:52,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:15:52,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2135128217] [2020-10-29 09:15:52,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:15:52,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-29 09:15:52,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316809114] [2020-10-29 09:15:52,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-29 09:15:52,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:15:52,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-29 09:15:52,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2020-10-29 09:15:52,887 INFO L87 Difference]: Start difference. First operand 292 states and 355 transitions. Second operand 18 states. [2020-10-29 09:15:53,209 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 35 [2020-10-29 09:15:55,084 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-10-29 09:15:55,244 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-29 09:15:55,510 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2020-10-29 09:15:58,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:15:58,941 INFO L93 Difference]: Finished difference Result 326 states and 392 transitions. [2020-10-29 09:15:58,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-29 09:15:58,943 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 45 [2020-10-29 09:15:58,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:15:58,946 INFO L225 Difference]: With dead ends: 326 [2020-10-29 09:15:58,946 INFO L226 Difference]: Without dead ends: 321 [2020-10-29 09:15:58,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=187, Invalid=1003, Unknown=0, NotChecked=0, Total=1190 [2020-10-29 09:15:58,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-10-29 09:15:58,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 292. [2020-10-29 09:15:58,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-10-29 09:15:58,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 354 transitions. [2020-10-29 09:15:58,994 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 354 transitions. Word has length 45 [2020-10-29 09:15:58,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:15:58,995 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 354 transitions. [2020-10-29 09:15:58,995 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-29 09:15:58,995 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 354 transitions. [2020-10-29 09:15:58,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-29 09:15:58,999 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:15:58,999 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:15:59,001 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 09:15:59,001 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:15:59,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:15:59,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1810679932, now seen corresponding path program 1 times [2020-10-29 09:15:59,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:15:59,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [721166876] [2020-10-29 09:15:59,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:15:59,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:59,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:59,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:59,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-29 09:15:59,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:59,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 903 [2020-10-29 09:15:59,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:59,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:59,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 09:15:59,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 09:15:59,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-29 09:15:59,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:00,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:16:00,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:00,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:00,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:00,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:16:00,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:00,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 09:16:00,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:00,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:00,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:16:00,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:16:00,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 09:16:00,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:00,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 09:16:00,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:00,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:00,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:00,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-29 09:16:00,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:00,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-10-29 09:16:00,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:00,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:00,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 09:16:00,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:00,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 09:16:00,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:16:00,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:16:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:00,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:00,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:00,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 09:16:00,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:00,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-10-29 09:16:00,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:00,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:00,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 09:16:00,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:00,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 09:16:00,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:01,224 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-29 09:16:01,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-29 09:16:01,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:01,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:01,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:01,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 09:16:01,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:01,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-29 09:16:01,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:01,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:01,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 09:16:01,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:01,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 09:16:01,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:16:01,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:16:01,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:01,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:01,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:01,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:16:01,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:01,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 09:16:01,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:01,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:01,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:16:01,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:16:01,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:16:01,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:16:01,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:16:01,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [721166876] [2020-10-29 09:16:01,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:16:01,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-29 09:16:01,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101637803] [2020-10-29 09:16:01,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 09:16:01,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:16:01,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 09:16:01,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2020-10-29 09:16:01,932 INFO L87 Difference]: Start difference. First operand 292 states and 354 transitions. Second operand 19 states. [2020-10-29 09:16:02,760 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-10-29 09:16:03,253 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-29 09:16:04,555 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-29 09:16:08,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:16:08,642 INFO L93 Difference]: Finished difference Result 329 states and 395 transitions. [2020-10-29 09:16:08,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-29 09:16:08,644 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 48 [2020-10-29 09:16:08,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:16:08,647 INFO L225 Difference]: With dead ends: 329 [2020-10-29 09:16:08,647 INFO L226 Difference]: Without dead ends: 324 [2020-10-29 09:16:08,648 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=189, Invalid=1217, Unknown=0, NotChecked=0, Total=1406 [2020-10-29 09:16:08,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-10-29 09:16:08,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 292. [2020-10-29 09:16:08,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-10-29 09:16:08,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 353 transitions. [2020-10-29 09:16:08,684 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 353 transitions. Word has length 48 [2020-10-29 09:16:08,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:16:08,684 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 353 transitions. [2020-10-29 09:16:08,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 09:16:08,684 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 353 transitions. [2020-10-29 09:16:08,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-29 09:16:08,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:16:08,686 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:16:08,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 09:16:08,686 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:16:08,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:16:08,687 INFO L82 PathProgramCache]: Analyzing trace with hash 448613391, now seen corresponding path program 1 times [2020-10-29 09:16:08,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:16:08,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [280460399] [2020-10-29 09:16:08,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:16:08,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:08,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:08,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:10,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:10,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 09:16:10,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:16:10,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2262 [2020-10-29 09:16:10,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:10,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:10,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 09:16:10,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 09:16:10,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-29 09:16:10,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:11,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:16:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:11,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:11,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:11,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:16:11,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:11,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 09:16:11,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:11,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:11,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:16:11,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:16:11,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 09:16:11,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:11,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 09:16:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:11,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:11,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:11,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-29 09:16:11,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:11,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 323 [2020-10-29 09:16:11,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:11,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:11,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 09:16:11,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:11,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 09:16:11,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:11,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:16:11,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:11,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:12,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:12,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 09:16:12,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:12,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-10-29 09:16:12,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:12,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:12,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 09:16:12,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:12,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 09:16:12,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:12,420 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-10-29 09:16:12,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-29 09:16:12,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:12,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:12,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:12,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 09:16:12,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:12,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-29 09:16:12,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:12,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:12,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 09:16:12,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:12,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 09:16:12,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:12,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:16:12,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:12,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:12,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:12,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:16:12,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:12,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 09:16:12,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:12,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:12,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:16:12,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:16:12,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:16:12,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:13,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:16:13,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [280460399] [2020-10-29 09:16:13,116 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:16:13,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-29 09:16:13,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563704398] [2020-10-29 09:16:13,117 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-29 09:16:13,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:16:13,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-29 09:16:13,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2020-10-29 09:16:13,119 INFO L87 Difference]: Start difference. First operand 292 states and 353 transitions. Second operand 20 states. [2020-10-29 09:16:13,379 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-10-29 09:16:13,920 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-10-29 09:16:14,352 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-29 09:16:15,140 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-29 09:16:15,426 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-29 09:16:15,792 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-29 09:16:16,120 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-29 09:16:16,364 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-29 09:16:19,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:16:19,968 INFO L93 Difference]: Finished difference Result 327 states and 392 transitions. [2020-10-29 09:16:19,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-29 09:16:19,970 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 51 [2020-10-29 09:16:19,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:16:19,973 INFO L225 Difference]: With dead ends: 327 [2020-10-29 09:16:19,973 INFO L226 Difference]: Without dead ends: 322 [2020-10-29 09:16:19,975 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=183, Invalid=1223, Unknown=0, NotChecked=0, Total=1406 [2020-10-29 09:16:19,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-10-29 09:16:20,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 292. [2020-10-29 09:16:20,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-10-29 09:16:20,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 352 transitions. [2020-10-29 09:16:20,020 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 352 transitions. Word has length 51 [2020-10-29 09:16:20,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:16:20,023 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 352 transitions. [2020-10-29 09:16:20,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-29 09:16:20,024 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 352 transitions. [2020-10-29 09:16:20,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-29 09:16:20,032 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:16:20,032 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:16:20,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 09:16:20,033 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:16:20,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:16:20,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1445890676, now seen corresponding path program 1 times [2020-10-29 09:16:20,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:16:20,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2056732465] [2020-10-29 09:16:20,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:16:20,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:20,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:20,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:20,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 09:16:20,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:20,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 682 [2020-10-29 09:16:20,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:20,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:20,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 09:16:20,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 09:16:20,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-29 09:16:20,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:16:21,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:16:21,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:21,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:21,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:21,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:16:21,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:21,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 09:16:21,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:21,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:21,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:16:21,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:16:21,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 09:16:21,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:21,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 09:16:21,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:21,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:21,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:21,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-29 09:16:21,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:21,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 293 [2020-10-29 09:16:21,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:21,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:21,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 09:16:21,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:21,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 09:16:21,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:21,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:16:21,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:21,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:21,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:21,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 09:16:21,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:21,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-29 09:16:21,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:21,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:21,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 09:16:21,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:21,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 09:16:21,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:22,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-29 09:16:22,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:22,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:22,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:22,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 09:16:22,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:22,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-29 09:16:22,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:22,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:22,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 09:16:22,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:22,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 09:16:22,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:22,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:16:22,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:22,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:22,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:22,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:16:22,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:22,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 09:16:22,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:22,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:22,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:16:22,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:16:22,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:16:22,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:16:22,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:16:22,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2056732465] [2020-10-29 09:16:22,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:16:22,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-29 09:16:22,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269086375] [2020-10-29 09:16:22,373 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 09:16:22,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:16:22,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 09:16:22,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2020-10-29 09:16:22,374 INFO L87 Difference]: Start difference. First operand 292 states and 352 transitions. Second operand 19 states. [2020-10-29 09:16:22,957 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 42 [2020-10-29 09:16:23,166 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 42 [2020-10-29 09:16:23,376 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-10-29 09:16:23,779 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-10-29 09:16:24,675 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-29 09:16:24,852 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-29 09:16:25,038 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2020-10-29 09:16:25,407 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-29 09:16:25,916 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-10-29 09:16:26,791 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-10-29 09:16:29,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:16:29,883 INFO L93 Difference]: Finished difference Result 331 states and 397 transitions. [2020-10-29 09:16:29,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-29 09:16:29,884 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 54 [2020-10-29 09:16:29,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:16:29,887 INFO L225 Difference]: With dead ends: 331 [2020-10-29 09:16:29,887 INFO L226 Difference]: Without dead ends: 326 [2020-10-29 09:16:29,888 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=287, Invalid=1519, Unknown=0, NotChecked=0, Total=1806 [2020-10-29 09:16:29,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-10-29 09:16:29,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 292. [2020-10-29 09:16:29,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-10-29 09:16:29,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 351 transitions. [2020-10-29 09:16:29,923 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 351 transitions. Word has length 54 [2020-10-29 09:16:29,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:16:29,923 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 351 transitions. [2020-10-29 09:16:29,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 09:16:29,923 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 351 transitions. [2020-10-29 09:16:29,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-29 09:16:29,924 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:16:29,925 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 09:16:29,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 09:16:29,925 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:16:29,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:16:29,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1930027834, now seen corresponding path program 1 times [2020-10-29 09:16:29,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:16:29,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1250435400] [2020-10-29 09:16:29,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:16:29,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:29,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:32,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:32,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-29 09:16:32,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:32,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2584 [2020-10-29 09:16:32,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:32,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:32,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-29 09:16:32,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 09:16:32,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-29 09:16:32,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:32,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:16:32,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:32,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:32,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:32,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:16:32,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:32,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 09:16:32,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:32,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:32,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:16:32,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:16:32,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 09:16:32,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:32,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 09:16:32,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:32,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:34,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:34,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-29 09:16:34,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:34,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1585 [2020-10-29 09:16:34,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:34,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:34,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-29 09:16:34,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:34,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-29 09:16:34,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:34,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:16:34,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:34,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:34,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:34,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 09:16:34,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:34,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-29 09:16:34,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:34,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:34,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 09:16:34,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:34,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 09:16:34,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:35,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-29 09:16:35,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:35,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:35,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:35,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 09:16:35,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:35,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-29 09:16:35,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:35,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:35,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 09:16:35,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:35,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 09:16:35,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:35,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:16:35,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:35,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:35,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:35,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:16:35,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:35,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 09:16:35,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:35,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:35,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:16:35,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:16:35,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:16:35,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:35,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 09:16:35,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:35,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:35,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:35,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 09:16:35,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:35,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-10-29 09:16:35,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:35,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:35,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 09:16:35,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:35,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 09:16:35,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:35,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-29 09:16:35,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:35,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:36,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:36,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 09:16:36,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:36,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-29 09:16:36,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:36,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:36,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 09:16:36,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:36,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 09:16:36,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:16:36,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:16:36,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:36,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:36,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:36,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:16:36,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:36,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 09:16:36,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:36,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:36,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 09:16:36,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:36,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 09:16:36,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:36,513 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 09:16:36,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1250435400] [2020-10-29 09:16:36,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 09:16:36,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-29 09:16:36,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131271380] [2020-10-29 09:16:36,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-29 09:16:36,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:16:36,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-29 09:16:36,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=565, Unknown=0, NotChecked=0, Total=650 [2020-10-29 09:16:36,526 INFO L87 Difference]: Start difference. First operand 292 states and 351 transitions. Second operand 26 states. [2020-10-29 09:16:37,460 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2020-10-29 09:16:37,775 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-29 09:16:38,051 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-29 09:16:38,271 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-10-29 09:16:38,515 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-10-29 09:16:38,715 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2020-10-29 09:16:39,444 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-29 09:16:40,043 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-10-29 09:16:40,362 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-10-29 09:16:40,521 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-29 09:16:40,779 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-29 09:16:40,974 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-10-29 09:16:43,081 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-10-29 09:16:45,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:16:45,454 INFO L93 Difference]: Finished difference Result 421 states and 506 transitions. [2020-10-29 09:16:45,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-29 09:16:45,459 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 63 [2020-10-29 09:16:45,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:16:45,462 INFO L225 Difference]: With dead ends: 421 [2020-10-29 09:16:45,462 INFO L226 Difference]: Without dead ends: 416 [2020-10-29 09:16:45,463 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=366, Invalid=2286, Unknown=0, NotChecked=0, Total=2652 [2020-10-29 09:16:45,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2020-10-29 09:16:45,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 385. [2020-10-29 09:16:45,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-10-29 09:16:45,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 465 transitions. [2020-10-29 09:16:45,506 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 465 transitions. Word has length 63 [2020-10-29 09:16:45,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:16:45,506 INFO L481 AbstractCegarLoop]: Abstraction has 385 states and 465 transitions. [2020-10-29 09:16:45,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-29 09:16:45,506 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 465 transitions. [2020-10-29 09:16:45,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-29 09:16:45,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:16:45,507 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:16:45,508 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 09:16:45,508 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:16:45,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:16:45,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1452185530, now seen corresponding path program 1 times [2020-10-29 09:16:45,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:16:45,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1736276348] [2020-10-29 09:16:45,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:16:45,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:45,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:46,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:46,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 09:16:46,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:46,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 720 [2020-10-29 09:16:46,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:46,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:46,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-29 09:16:46,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 09:16:46,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-29 09:16:46,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:46,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:16:46,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:46,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:46,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:46,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:16:46,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:46,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 09:16:46,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:46,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:46,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:16:46,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:16:46,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 09:16:46,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:46,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 09:16:46,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:46,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:46,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:46,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-29 09:16:46,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:46,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-10-29 09:16:46,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:46,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:46,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 09:16:46,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:46,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 09:16:46,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:47,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:16:47,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:47,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:47,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:47,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 09:16:47,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:47,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-10-29 09:16:47,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:47,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:47,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 09:16:47,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:47,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 09:16:47,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:47,719 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 49 [2020-10-29 09:16:47,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-29 09:16:47,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:47,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:47,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:47,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 09:16:47,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:47,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-29 09:16:47,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:47,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:47,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 09:16:47,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:47,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 09:16:47,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:48,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:16:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:48,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:48,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:48,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:16:48,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:48,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 09:16:48,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:48,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:48,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:16:48,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:16:48,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:16:48,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:48,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:16:48,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1736276348] [2020-10-29 09:16:48,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:16:48,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-29 09:16:48,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237281283] [2020-10-29 09:16:48,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-29 09:16:48,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:16:48,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-29 09:16:48,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2020-10-29 09:16:48,302 INFO L87 Difference]: Start difference. First operand 385 states and 465 transitions. Second operand 20 states. [2020-10-29 09:16:49,228 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-29 09:16:49,696 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-29 09:16:50,134 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-29 09:16:50,576 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-10-29 09:16:50,866 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-29 09:16:51,143 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-10-29 09:16:51,524 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-10-29 09:16:51,953 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-29 09:16:52,215 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-29 09:16:53,223 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-10-29 09:16:56,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:16:56,320 INFO L93 Difference]: Finished difference Result 409 states and 490 transitions. [2020-10-29 09:16:56,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-29 09:16:56,321 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 57 [2020-10-29 09:16:56,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:16:56,324 INFO L225 Difference]: With dead ends: 409 [2020-10-29 09:16:56,324 INFO L226 Difference]: Without dead ends: 404 [2020-10-29 09:16:56,325 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=223, Invalid=1337, Unknown=0, NotChecked=0, Total=1560 [2020-10-29 09:16:56,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2020-10-29 09:16:56,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 385. [2020-10-29 09:16:56,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-10-29 09:16:56,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 464 transitions. [2020-10-29 09:16:56,377 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 464 transitions. Word has length 57 [2020-10-29 09:16:56,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:16:56,379 INFO L481 AbstractCegarLoop]: Abstraction has 385 states and 464 transitions. [2020-10-29 09:16:56,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-29 09:16:56,379 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 464 transitions. [2020-10-29 09:16:56,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-29 09:16:56,380 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:16:56,380 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:16:56,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 09:16:56,380 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:16:56,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:16:56,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1537962617, now seen corresponding path program 1 times [2020-10-29 09:16:56,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:16:56,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1375409790] [2020-10-29 09:16:56,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:16:56,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 09:16:56,415 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 09:16:56,415 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 09:16:56,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 09:16:56,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 09:16:56 BoogieIcfgContainer [2020-10-29 09:16:56,461 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 09:16:56,467 INFO L168 Benchmark]: Toolchain (without parser) took 88760.53 ms. Allocated memory was 151.0 MB in the beginning and 425.7 MB in the end (delta: 274.7 MB). Free memory was 124.3 MB in the beginning and 259.4 MB in the end (delta: -135.1 MB). Peak memory consumption was 140.7 MB. Max. memory is 8.0 GB. [2020-10-29 09:16:56,468 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 151.0 MB. Free memory is still 124.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 09:16:56,469 INFO L168 Benchmark]: CACSL2BoogieTranslator took 913.13 ms. Allocated memory is still 151.0 MB. Free memory was 123.8 MB in the beginning and 106.3 MB in the end (delta: 17.5 MB). Peak memory consumption was 29.0 MB. Max. memory is 8.0 GB. [2020-10-29 09:16:56,471 INFO L168 Benchmark]: Boogie Preprocessor took 150.83 ms. Allocated memory is still 151.0 MB. Free memory was 106.3 MB in the beginning and 101.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-29 09:16:56,471 INFO L168 Benchmark]: RCFGBuilder took 1421.11 ms. Allocated memory is still 151.0 MB. Free memory was 101.6 MB in the beginning and 97.9 MB in the end (delta: 3.6 MB). Peak memory consumption was 58.7 MB. Max. memory is 8.0 GB. [2020-10-29 09:16:56,472 INFO L168 Benchmark]: TraceAbstraction took 86259.75 ms. Allocated memory was 151.0 MB in the beginning and 425.7 MB in the end (delta: 274.7 MB). Free memory was 97.4 MB in the beginning and 259.4 MB in the end (delta: -162.0 MB). Peak memory consumption was 112.7 MB. Max. memory is 8.0 GB. [2020-10-29 09:16:56,479 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 151.0 MB. Free memory is still 124.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 913.13 ms. Allocated memory is still 151.0 MB. Free memory was 123.8 MB in the beginning and 106.3 MB in the end (delta: 17.5 MB). Peak memory consumption was 29.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 150.83 ms. Allocated memory is still 151.0 MB. Free memory was 106.3 MB in the beginning and 101.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1421.11 ms. Allocated memory is still 151.0 MB. Free memory was 101.6 MB in the beginning and 97.9 MB in the end (delta: 3.6 MB). Peak memory consumption was 58.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 86259.75 ms. Allocated memory was 151.0 MB in the beginning and 425.7 MB in the end (delta: 274.7 MB). Free memory was 97.4 MB in the beginning and 259.4 MB in the end (delta: -162.0 MB). Peak memory consumption was 112.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 12]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L850] struct list_head gl_list = { &(gl_list), &(gl_list) }; [L949] CALL gl_read() [L909] CALL gl_insert(__VERIFIER_nondet_int()) [L899] struct node *node = malloc(sizeof *node); [L900] COND FALSE !(!node) [L902] node->value = value [L903] CALL list_add(&node->linkage, &gl_list) [L890] EXPR head->next [L890] CALL __list_add(new, head, head->next) [L878] next->prev = new [L879] new->next = next [L880] new->prev = prev [L881] prev->next = new [L890] RET __list_add(new, head, head->next) [L903] RET list_add(&node->linkage, &gl_list) [L904] (&node->nested)->next = (&node->nested) [L904] (&node->nested)->next = (&node->nested) [L909] RET gl_insert(__VERIFIER_nondet_int()) [L911] COND FALSE !(__VERIFIER_nondet_int()) [L949] RET gl_read() [L950] CALL inspect(&gl_list) [L853] COND FALSE !(!(head)) [L854] EXPR head->next [L854] COND FALSE !(!(head->next != head)) [L855] EXPR head->prev [L855] COND FALSE !(!(head->prev != head)) [L856] EXPR head->prev [L856] head = head->prev [L857] COND FALSE !(!(head)) [L858] EXPR head->next [L858] COND FALSE !(!(head->next != head)) [L859] EXPR head->prev [L859] COND FALSE !(!(head->prev != head)) [L860] const struct node *node = ((struct node *)((char *)(head)-(unsigned long)(&((struct node *)0)->linkage))); [L861] COND FALSE !(!(node)) [L862] EXPR node->nested.next [L862] COND FALSE !(!(node->nested.next == &node->nested)) [L863] EXPR node->nested.prev [L863] COND TRUE !(node->nested.prev == &node->nested) [L863] CALL fail() [L840] CALL reach_error() [L12] COND FALSE !(0) [L12] __assert_fail ("0", "bubble_sort_linux-2.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 18 procedures, 156 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 86.1s, OverallIterations: 10, TraceHistogramMax: 2, AutomataDifference: 58.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 941 SDtfs, 6429 SDslu, 1435 SDs, 0 SdLazy, 16978 SolverSat, 2357 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 30.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 365 GetRequests, 50 SyntacticMatches, 3 SemanticMatches, 312 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1865 ImplicationChecksByTransitivity, 27.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=385occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 262 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 26.2s InterpolantComputationTime, 475 NumberOfCodeBlocks, 475 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 406 ConstructedInterpolants, 0 QuantifiedInterpolants, 508909 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 3/21 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...