/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-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 09:15:11,318 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 09:15:11,322 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 09:15:11,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 09:15:11,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 09:15:11,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 09:15:11,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 09:15:11,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 09:15:11,388 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 09:15:11,389 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 09:15:11,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 09:15:11,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 09:15:11,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 09:15:11,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 09:15:11,395 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 09:15:11,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 09:15:11,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 09:15:11,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 09:15:11,401 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 09:15:11,404 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 09:15:11,406 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 09:15:11,408 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 09:15:11,409 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 09:15:11,410 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 09:15:11,428 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 09:15:11,429 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 09:15:11,429 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 09:15:11,430 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 09:15:11,431 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 09:15:11,432 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 09:15:11,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 09:15:11,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 09:15:11,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 09:15:11,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 09:15:11,437 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 09:15:11,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 09:15:11,438 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 09:15:11,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 09:15:11,438 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 09:15:11,439 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 09:15:11,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 09:15:11,441 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 09:15:11,466 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 09:15:11,467 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 09:15:11,468 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 09:15:11,469 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 09:15:11,469 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 09:15:11,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 09:15:11,469 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 09:15:11,470 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 09:15:11,470 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 09:15:11,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 09:15:11,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 09:15:11,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 09:15:11,471 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 09:15:11,471 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 09:15:11,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 09:15:11,471 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 09:15:11,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 09:15:11,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 09:15:11,472 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 09:15:11,472 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 09:15:11,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 09:15:11,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 09:15:11,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 09:15:11,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 09:15:11,473 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 09:15:11,473 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 09:15:11,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 09:15:11,474 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 09:15:11,474 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 09:15:11,474 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 09:15:11,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 09:15:11,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 09:15:11,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 09:15:11,894 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 09:15:11,895 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 09:15:11,898 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-1.i [2020-10-29 09:15:11,983 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a182e71da/b9968d018614464c8ffef88f38ed712e/FLAG1d0d38176 [2020-10-29 09:15:12,882 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 09:15:12,882 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-1.i [2020-10-29 09:15:12,909 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a182e71da/b9968d018614464c8ffef88f38ed712e/FLAG1d0d38176 [2020-10-29 09:15:13,028 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a182e71da/b9968d018614464c8ffef88f38ed712e [2020-10-29 09:15:13,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 09:15:13,039 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 09:15:13,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 09:15:13,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 09:15:13,045 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 09:15:13,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:15:13" (1/1) ... [2020-10-29 09:15:13,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eafa0cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:15:13, skipping insertion in model container [2020-10-29 09:15:13,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:15:13" (1/1) ... [2020-10-29 09:15:13,060 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 09:15:13,107 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 09:15:13,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:15:13,653 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 09:15:13,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:15:14,032 INFO L208 MainTranslator]: Completed translation [2020-10-29 09:15:14,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:15:14 WrapperNode [2020-10-29 09:15:14,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 09:15:14,035 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 09:15:14,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 09:15:14,036 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 09:15:14,052 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:15:14" (1/1) ... [2020-10-29 09:15:14,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:15:14" (1/1) ... [2020-10-29 09:15:14,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:15:14" (1/1) ... [2020-10-29 09:15:14,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:15:14" (1/1) ... [2020-10-29 09:15:14,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:15:14" (1/1) ... [2020-10-29 09:15:14,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:15:14" (1/1) ... [2020-10-29 09:15:14,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:15:14" (1/1) ... [2020-10-29 09:15:14,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 09:15:14,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 09:15:14,169 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 09:15:14,169 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 09:15:14,170 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:15:14" (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 09:15:14,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 09:15:14,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 09:15:14,252 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 09:15:14,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-29 09:15:14,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-29 09:15:14,253 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-10-29 09:15:14,254 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2020-10-29 09:15:14,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-10-29 09:15:14,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2020-10-29 09:15:14,254 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-10-29 09:15:14,255 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2020-10-29 09:15:14,255 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2020-10-29 09:15:14,256 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2020-10-29 09:15:14,256 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2020-10-29 09:15:14,256 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2020-10-29 09:15:14,257 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2020-10-29 09:15:14,257 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2020-10-29 09:15:14,257 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 09:15:14,258 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 09:15:14,258 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 09:15:14,258 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-29 09:15:14,258 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-29 09:15:14,258 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 09:15:14,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 09:15:14,259 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-29 09:15:14,259 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-29 09:15:14,259 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-29 09:15:14,259 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-29 09:15:14,259 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-29 09:15:14,259 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-29 09:15:14,260 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-29 09:15:14,260 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-29 09:15:14,260 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-29 09:15:14,260 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-29 09:15:14,260 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-29 09:15:14,260 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-29 09:15:14,260 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-29 09:15:14,261 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-29 09:15:14,261 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-29 09:15:14,261 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-29 09:15:14,261 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-29 09:15:14,261 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-29 09:15:14,261 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-29 09:15:14,261 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-29 09:15:14,261 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-29 09:15:14,262 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-29 09:15:14,262 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-29 09:15:14,262 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-29 09:15:14,262 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-29 09:15:14,262 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-29 09:15:14,262 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-29 09:15:14,262 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-29 09:15:14,262 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-29 09:15:14,263 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-29 09:15:14,263 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-29 09:15:14,264 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-29 09:15:14,264 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-29 09:15:14,264 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-29 09:15:14,265 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-29 09:15:14,265 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-29 09:15:14,265 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-29 09:15:14,265 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-29 09:15:14,265 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-29 09:15:14,266 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-29 09:15:14,266 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-29 09:15:14,266 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-29 09:15:14,266 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-29 09:15:14,266 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-29 09:15:14,266 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-29 09:15:14,266 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-29 09:15:14,267 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-29 09:15:14,267 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-29 09:15:14,269 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-29 09:15:14,269 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-29 09:15:14,269 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-29 09:15:14,269 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-29 09:15:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 09:15:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-29 09:15:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-29 09:15:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-29 09:15:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-29 09:15:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-29 09:15:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-29 09:15:14,271 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-29 09:15:14,272 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-29 09:15:14,272 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-29 09:15:14,272 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 09:15:14,272 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-29 09:15:14,272 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-29 09:15:14,272 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-29 09:15:14,272 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-29 09:15:14,273 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-29 09:15:14,273 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-29 09:15:14,273 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-29 09:15:14,273 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-29 09:15:14,273 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-29 09:15:14,273 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-29 09:15:14,273 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-29 09:15:14,273 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-29 09:15:14,274 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-29 09:15:14,274 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-29 09:15:14,274 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-29 09:15:14,274 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-29 09:15:14,274 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-29 09:15:14,274 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-29 09:15:14,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-29 09:15:14,274 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-29 09:15:14,275 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-29 09:15:14,275 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-29 09:15:14,275 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-29 09:15:14,275 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-29 09:15:14,275 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-29 09:15:14,275 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-29 09:15:14,275 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-29 09:15:14,275 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-29 09:15:14,276 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-29 09:15:14,277 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-29 09:15:14,277 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-29 09:15:14,278 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-29 09:15:14,278 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-29 09:15:14,278 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-29 09:15:14,278 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-29 09:15:14,278 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-29 09:15:14,278 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-29 09:15:14,278 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-29 09:15:14,278 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-10-29 09:15:14,279 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-10-29 09:15:14,279 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-10-29 09:15:14,279 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-10-29 09:15:14,279 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-10-29 09:15:14,280 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-10-29 09:15:14,281 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-10-29 09:15:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-10-29 09:15:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-10-29 09:15:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-10-29 09:15:14,285 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-10-29 09:15:14,285 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-10-29 09:15:14,286 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-10-29 09:15:14,286 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-10-29 09:15:14,286 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-10-29 09:15:14,287 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-10-29 09:15:14,287 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-10-29 09:15:14,287 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-10-29 09:15:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-10-29 09:15:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-10-29 09:15:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-10-29 09:15:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-10-29 09:15:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-10-29 09:15:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-10-29 09:15:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-10-29 09:15:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-10-29 09:15:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-10-29 09:15:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-10-29 09:15:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-10-29 09:15:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-10-29 09:15:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-10-29 09:15:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-10-29 09:15:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-10-29 09:15:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-10-29 09:15:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-10-29 09:15:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-10-29 09:15:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-10-29 09:15:14,296 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-10-29 09:15:14,296 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-29 09:15:14,296 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-10-29 09:15:14,299 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-10-29 09:15:14,299 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-10-29 09:15:14,299 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-10-29 09:15:14,299 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-29 09:15:14,299 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-10-29 09:15:14,299 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-10-29 09:15:14,299 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-10-29 09:15:14,300 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-10-29 09:15:14,300 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-10-29 09:15:14,300 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-10-29 09:15:14,300 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-10-29 09:15:14,300 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-10-29 09:15:14,300 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-10-29 09:15:14,300 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-10-29 09:15:14,300 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-10-29 09:15:14,300 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-10-29 09:15:14,300 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-10-29 09:15:14,300 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-10-29 09:15:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-10-29 09:15:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-10-29 09:15:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-10-29 09:15:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-10-29 09:15:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-10-29 09:15:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-10-29 09:15:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-10-29 09:15:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-10-29 09:15:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-10-29 09:15:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-10-29 09:15:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-10-29 09:15:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-10-29 09:15:14,302 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-10-29 09:15:14,302 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-10-29 09:15:14,302 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-10-29 09:15:14,302 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-10-29 09:15:14,303 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-10-29 09:15:14,303 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-10-29 09:15:14,303 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-10-29 09:15:14,303 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-10-29 09:15:14,303 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-10-29 09:15:14,304 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-10-29 09:15:14,304 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-10-29 09:15:14,304 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-10-29 09:15:14,304 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-10-29 09:15:14,304 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-10-29 09:15:14,304 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-10-29 09:15:14,304 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-10-29 09:15:14,304 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-10-29 09:15:14,305 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-10-29 09:15:14,305 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-10-29 09:15:14,305 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-10-29 09:15:14,305 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-10-29 09:15:14,305 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-10-29 09:15:14,305 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-10-29 09:15:14,305 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-10-29 09:15:14,306 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-10-29 09:15:14,306 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-10-29 09:15:14,306 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-10-29 09:15:14,306 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-10-29 09:15:14,306 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-10-29 09:15:14,306 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-10-29 09:15:14,306 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-10-29 09:15:14,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 09:15:14,306 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-10-29 09:15:14,307 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2020-10-29 09:15:14,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-29 09:15:14,307 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-10-29 09:15:14,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-29 09:15:14,307 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2020-10-29 09:15:14,307 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-10-29 09:15:14,307 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2020-10-29 09:15:14,307 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2020-10-29 09:15:14,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 09:15:14,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 09:15:14,308 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2020-10-29 09:15:14,308 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2020-10-29 09:15:14,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 09:15:14,308 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2020-10-29 09:15:14,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 09:15:14,308 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2020-10-29 09:15:14,308 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2020-10-29 09:15:14,309 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 09:15:14,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 09:15:14,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 09:15:14,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-29 09:15:14,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 09:15:15,542 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 09:15:15,543 INFO L298 CfgBuilder]: Removed 41 assume(true) statements. [2020-10-29 09:15:15,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:15:15 BoogieIcfgContainer [2020-10-29 09:15:15,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 09:15:15,548 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 09:15:15,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 09:15:15,552 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 09:15:15,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 09:15:13" (1/3) ... [2020-10-29 09:15:15,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3356427e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:15:15, skipping insertion in model container [2020-10-29 09:15:15,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:15:14" (2/3) ... [2020-10-29 09:15:15,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3356427e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:15:15, skipping insertion in model container [2020-10-29 09:15:15,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:15:15" (3/3) ... [2020-10-29 09:15:15,557 INFO L111 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-1.i [2020-10-29 09:15:15,571 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 09:15:15,578 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 09:15:15,601 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 09:15:15,632 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 09:15:15,632 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 09:15:15,632 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 09:15:15,632 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 09:15:15,632 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 09:15:15,633 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 09:15:15,633 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 09:15:15,633 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 09:15:15,656 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states. [2020-10-29 09:15:15,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-29 09:15:15,663 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:15:15,664 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:15:15,664 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:15:15,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:15:15,671 INFO L82 PathProgramCache]: Analyzing trace with hash -246079649, now seen corresponding path program 1 times [2020-10-29 09:15:15,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:15:15,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1925828517] [2020-10-29 09:15:15,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:15:15,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:15,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:16,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:16,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:16,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 09:15:16,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:15:16,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 448 [2020-10-29 09:15:16,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:16,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:16,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:15:16,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 09:15:16,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 09:15:16,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 09:15:16,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:15:16,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:16,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:16,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:16,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:15:16,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:16,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 09:15:16,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:16,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:16,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:15:16,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:15:16,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 09:15:16,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:15:16,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 09:15:16,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:16,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:16,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:16,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:16,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:15:16,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:15:16,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 09:15:16,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:16,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:16,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:15:16,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:15:16,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 09:15:16,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:16,533 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 09:15:16,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1925828517] [2020-10-29 09:15:16,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:15:16,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 09:15:16,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704266146] [2020-10-29 09:15:16,543 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 09:15:16,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:15:16,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 09:15:16,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-29 09:15:16,561 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 7 states. [2020-10-29 09:15:17,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:15:17,886 INFO L93 Difference]: Finished difference Result 308 states and 497 transitions. [2020-10-29 09:15:17,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 09:15:17,888 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-10-29 09:15:17,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:15:17,901 INFO L225 Difference]: With dead ends: 308 [2020-10-29 09:15:17,901 INFO L226 Difference]: Without dead ends: 149 [2020-10-29 09:15:17,908 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-29 09:15:17,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-10-29 09:15:17,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 131. [2020-10-29 09:15:17,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-10-29 09:15:17,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 151 transitions. [2020-10-29 09:15:17,978 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 151 transitions. Word has length 16 [2020-10-29 09:15:17,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:15:17,979 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 151 transitions. [2020-10-29 09:15:17,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 09:15:17,979 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 151 transitions. [2020-10-29 09:15:17,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-29 09:15:17,982 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:15:17,982 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 09:15:17,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 09:15:17,983 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:15:17,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:15:17,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1176936722, now seen corresponding path program 1 times [2020-10-29 09:15:17,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:15:17,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [482253116] [2020-10-29 09:15:17,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:15:18,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:18,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:18,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:18,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-29 09:15:18,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:18,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 724 [2020-10-29 09:15:18,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:18,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:18,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 09:15:18,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 09:15:18,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-29 09:15:18,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:18,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:15:18,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:18,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:18,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:18,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:15:18,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:18,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 09:15:18,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:18,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:18,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:15:18,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:15:18,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 09:15:18,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:15:18,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 09:15:18,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:18,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:19,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:19,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-29 09:15:19,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:19,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-10-29 09:15:19,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:19,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:19,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 09:15:19,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:15:19,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-29 09:15:19,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:19,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:15:19,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:19,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:19,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:19,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 09:15:19,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:19,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-29 09:15:19,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:19,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:19,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 09:15:19,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:15:19,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-29 09:15:19,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:19,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-29 09:15:19,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:19,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:19,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:19,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 09:15:19,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:19,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-29 09:15:19,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:19,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:19,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 09:15:19,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:15:19,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 09:15:19,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:15:19,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:15:19,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:19,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:19,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:19,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:15:19,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:19,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 09:15:19,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:19,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:19,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:15:19,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:15:19,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:15:19,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:15:19,788 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 09:15:19,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [482253116] [2020-10-29 09:15:19,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:15:19,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-29 09:15:19,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836907204] [2020-10-29 09:15:19,792 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 09:15:19,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:15:19,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 09:15:19,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2020-10-29 09:15:19,796 INFO L87 Difference]: Start difference. First operand 131 states and 151 transitions. Second operand 16 states. [2020-10-29 09:15:20,948 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2020-10-29 09:15:21,165 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2020-10-29 09:15:21,345 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2020-10-29 09:15:21,491 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2020-10-29 09:15:21,649 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2020-10-29 09:15:23,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:15:23,842 INFO L93 Difference]: Finished difference Result 250 states and 297 transitions. [2020-10-29 09:15:23,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-29 09:15:23,844 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 39 [2020-10-29 09:15:23,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:15:23,848 INFO L225 Difference]: With dead ends: 250 [2020-10-29 09:15:23,848 INFO L226 Difference]: Without dead ends: 242 [2020-10-29 09:15:23,850 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=212, Invalid=910, Unknown=0, NotChecked=0, Total=1122 [2020-10-29 09:15:23,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-10-29 09:15:23,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 211. [2020-10-29 09:15:23,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-10-29 09:15:23,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 253 transitions. [2020-10-29 09:15:23,894 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 253 transitions. Word has length 39 [2020-10-29 09:15:23,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:15:23,894 INFO L481 AbstractCegarLoop]: Abstraction has 211 states and 253 transitions. [2020-10-29 09:15:23,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 09:15:23,894 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 253 transitions. [2020-10-29 09:15:23,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-29 09:15:23,896 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:15:23,896 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 09:15:23,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 09:15:23,896 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:15:23,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:15:23,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1868463441, now seen corresponding path program 1 times [2020-10-29 09:15:23,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:15:23,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1804419593] [2020-10-29 09:15:23,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:15:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:23,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:24,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:24,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-29 09:15:24,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:24,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 981 [2020-10-29 09:15:24,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:24,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:24,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-29 09:15:24,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 09:15:24,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-29 09:15:24,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:25,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:15:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:25,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:25,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:25,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:15:25,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:25,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 09:15:25,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:25,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:25,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:15:25,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:15:25,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 09:15:25,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:25,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 09:15:25,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:25,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:25,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:25,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-29 09:15:25,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:25,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 409 [2020-10-29 09:15:25,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:25,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:25,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 09:15:25,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:15:25,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 09:15:25,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:25,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:15:25,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:25,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:25,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:25,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 09:15:25,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:25,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-10-29 09:15:25,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:25,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:25,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 09:15:25,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:15:25,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 09:15:25,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:15:26,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-29 09:15:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:26,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:26,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:26,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 09:15:26,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:26,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-29 09:15:26,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:26,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:26,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 09:15:26,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:15:26,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 09:15:26,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:15:26,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:15:26,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:26,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:26,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:26,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:15:26,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:26,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 09:15:26,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:26,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:26,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:15:26,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:15:26,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:15:26,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:26,570 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 09:15:26,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1804419593] [2020-10-29 09:15:26,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:15:26,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-29 09:15:26,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617072344] [2020-10-29 09:15:26,573 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 09:15:26,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:15:26,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 09:15:26,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2020-10-29 09:15:26,575 INFO L87 Difference]: Start difference. First operand 211 states and 253 transitions. Second operand 19 states. [2020-10-29 09:15:30,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:15:30,673 INFO L93 Difference]: Finished difference Result 335 states and 405 transitions. [2020-10-29 09:15:30,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-29 09:15:30,674 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 42 [2020-10-29 09:15:30,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:15:30,678 INFO L225 Difference]: With dead ends: 335 [2020-10-29 09:15:30,678 INFO L226 Difference]: Without dead ends: 330 [2020-10-29 09:15:30,680 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=211, Invalid=1195, Unknown=0, NotChecked=0, Total=1406 [2020-10-29 09:15:30,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-10-29 09:15:30,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 292. [2020-10-29 09:15:30,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-10-29 09:15:30,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 355 transitions. [2020-10-29 09:15:30,732 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 355 transitions. Word has length 42 [2020-10-29 09:15:30,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:15:30,733 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 355 transitions. [2020-10-29 09:15:30,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 09:15:30,733 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 355 transitions. [2020-10-29 09:15:30,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-29 09:15:30,734 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:15:30,735 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 09:15:30,735 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 09:15:30,735 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:15:30,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:15:30,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1056603810, now seen corresponding path program 1 times [2020-10-29 09:15:30,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:15:30,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1024574959] [2020-10-29 09:15:30,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:15:30,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:30,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:31,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:31,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-29 09:15:31,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:31,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 823 [2020-10-29 09:15:31,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:31,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:31,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-29 09:15:31,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 09:15:31,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-29 09:15:31,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:31,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:15:31,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:31,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:31,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:31,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:15:31,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:31,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 09:15:31,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:31,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:31,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:15:31,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:15:31,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 09:15:31,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:31,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 09:15:31,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:31,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:32,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:32,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-29 09:15:32,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:32,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-10-29 09:15:32,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:32,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:32,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 09:15:32,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:15:32,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 09:15:32,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:32,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:15:32,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:32,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:32,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:32,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 09:15:32,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:32,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-10-29 09:15:32,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:32,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:32,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 09:15:32,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:15:32,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 09:15:32,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:32,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-29 09:15:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:32,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:32,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:32,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 09:15:32,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:32,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-29 09:15:32,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:32,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:32,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 09:15:32,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:15:32,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 09:15:32,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:32,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:15:32,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:32,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:32,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:32,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:15:32,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:32,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 09:15:32,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:32,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:32,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:15:32,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:15:32,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:15:32,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:33,073 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 09:15:33,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1024574959] [2020-10-29 09:15:33,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:15:33,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-29 09:15:33,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991184180] [2020-10-29 09:15:33,075 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-29 09:15:33,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:15:33,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-29 09:15:33,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2020-10-29 09:15:33,077 INFO L87 Difference]: Start difference. First operand 292 states and 355 transitions. Second operand 18 states. [2020-10-29 09:15:36,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:15:36,850 INFO L93 Difference]: Finished difference Result 326 states and 392 transitions. [2020-10-29 09:15:36,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-29 09:15:36,851 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 45 [2020-10-29 09:15:36,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:15:36,854 INFO L225 Difference]: With dead ends: 326 [2020-10-29 09:15:36,855 INFO L226 Difference]: Without dead ends: 321 [2020-10-29 09:15:36,856 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=187, Invalid=1003, Unknown=0, NotChecked=0, Total=1190 [2020-10-29 09:15:36,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-10-29 09:15:36,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 292. [2020-10-29 09:15:36,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-10-29 09:15:36,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 354 transitions. [2020-10-29 09:15:36,943 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 354 transitions. Word has length 45 [2020-10-29 09:15:36,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:15:36,945 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 354 transitions. [2020-10-29 09:15:36,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-29 09:15:36,946 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 354 transitions. [2020-10-29 09:15:36,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-29 09:15:36,953 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:15:36,954 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 09:15:36,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 09:15:36,954 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:15:36,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:15:36,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1810679932, now seen corresponding path program 1 times [2020-10-29 09:15:36,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:15:36,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [379087974] [2020-10-29 09:15:36,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:15:36,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:37,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:37,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:37,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-29 09:15:37,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:37,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 722 [2020-10-29 09:15:37,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:37,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:37,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 09:15:37,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 09:15:37,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-29 09:15:37,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:15:37,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:15:37,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:37,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:37,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:37,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:15:37,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:37,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 09:15:37,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:37,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:37,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:15:37,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:15:37,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 09:15:37,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:15:37,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 09:15:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:37,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:38,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:38,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-29 09:15:38,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:38,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 361 [2020-10-29 09:15:38,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:38,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:38,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 09:15:38,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:15:38,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 09:15:38,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:38,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:15:38,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:38,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:38,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:38,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 09:15:38,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:38,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-29 09:15:38,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:38,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:38,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 09:15:38,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:15:38,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 09:15:38,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:38,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-29 09:15:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:38,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:39,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:39,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 09:15:39,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:39,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-29 09:15:39,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:39,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:39,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 09:15:39,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:15:39,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 09:15:39,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:15:39,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:15:39,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:39,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:39,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:39,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:15:39,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:39,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 09:15:39,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:39,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:39,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:15:39,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:15:39,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:15:39,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:39,496 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 09:15:39,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [379087974] [2020-10-29 09:15:39,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:15:39,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-29 09:15:39,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036572721] [2020-10-29 09:15:39,498 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 09:15:39,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:15:39,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 09:15:39,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2020-10-29 09:15:39,499 INFO L87 Difference]: Start difference. First operand 292 states and 354 transitions. Second operand 19 states. [2020-10-29 09:15:40,311 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-10-29 09:15:41,107 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2020-10-29 09:15:41,332 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2020-10-29 09:15:44,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:15:44,809 INFO L93 Difference]: Finished difference Result 329 states and 395 transitions. [2020-10-29 09:15:44,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-29 09:15:44,810 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 48 [2020-10-29 09:15:44,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:15:44,814 INFO L225 Difference]: With dead ends: 329 [2020-10-29 09:15:44,814 INFO L226 Difference]: Without dead ends: 324 [2020-10-29 09:15:44,816 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=193, Invalid=1289, Unknown=0, NotChecked=0, Total=1482 [2020-10-29 09:15:44,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-10-29 09:15:44,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 292. [2020-10-29 09:15:44,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-10-29 09:15:44,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 353 transitions. [2020-10-29 09:15:44,851 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 353 transitions. Word has length 48 [2020-10-29 09:15:44,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:15:44,851 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 353 transitions. [2020-10-29 09:15:44,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 09:15:44,851 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 353 transitions. [2020-10-29 09:15:44,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-29 09:15:44,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:15:44,853 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 09:15:44,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 09:15:44,853 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:15:44,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:15:44,854 INFO L82 PathProgramCache]: Analyzing trace with hash 448613391, now seen corresponding path program 1 times [2020-10-29 09:15:44,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:15:44,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990213017] [2020-10-29 09:15:44,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:15:44,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:44,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:45,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:47,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:47,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 09:15:47,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:15:47,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2428 [2020-10-29 09:15:47,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:47,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:47,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 09:15:47,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 09:15:47,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-29 09:15:47,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:47,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:15:47,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:47,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:47,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:47,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:15:47,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:47,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 09:15:47,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:47,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:47,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:15:47,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:15:47,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 09:15:47,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:47,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 09:15:47,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:47,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:47,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:47,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-29 09:15:47,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:47,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-10-29 09:15:47,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:47,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:47,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 09:15:47,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:15:47,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 09:15:47,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:47,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:15:47,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:48,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:48,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:48,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 09:15:48,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:48,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-10-29 09:15:48,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:48,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:48,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 09:15:48,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:15:48,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 09:15:48,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:15:48,524 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-10-29 09:15:48,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-29 09:15:48,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:48,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:48,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:48,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 09:15:48,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:48,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-29 09:15:48,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:48,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:48,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 09:15:48,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:15:48,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 09:15:48,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:15:48,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:15:48,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:48,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:48,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:48,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:15:48,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:48,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 09:15:48,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:48,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:48,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:15:48,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:15:48,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:15:48,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:15:49,170 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 09:15:49,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990213017] [2020-10-29 09:15:49,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:15:49,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-29 09:15:49,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971461085] [2020-10-29 09:15:49,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-29 09:15:49,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:15:49,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-29 09:15:49,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2020-10-29 09:15:49,175 INFO L87 Difference]: Start difference. First operand 292 states and 353 transitions. Second operand 20 states. [2020-10-29 09:15:53,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:15:53,628 INFO L93 Difference]: Finished difference Result 327 states and 392 transitions. [2020-10-29 09:15:53,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-29 09:15:53,630 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 51 [2020-10-29 09:15:53,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:15:53,633 INFO L225 Difference]: With dead ends: 327 [2020-10-29 09:15:53,633 INFO L226 Difference]: Without dead ends: 322 [2020-10-29 09:15:53,636 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=183, Invalid=1223, Unknown=0, NotChecked=0, Total=1406 [2020-10-29 09:15:53,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-10-29 09:15:53,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 292. [2020-10-29 09:15:53,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-10-29 09:15:53,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 352 transitions. [2020-10-29 09:15:53,682 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 352 transitions. Word has length 51 [2020-10-29 09:15:53,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:15:53,685 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 352 transitions. [2020-10-29 09:15:53,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-29 09:15:53,685 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 352 transitions. [2020-10-29 09:15:53,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-29 09:15:53,691 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:15:53,691 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 09:15:53,691 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 09:15:53,692 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:15:53,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:15:53,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1445890676, now seen corresponding path program 1 times [2020-10-29 09:15:53,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:15:53,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1523377813] [2020-10-29 09:15:53,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:15:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:53,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:54,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:54,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 09:15:54,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:54,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 767 [2020-10-29 09:15:54,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:54,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:54,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 09:15:54,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 09:15:54,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-29 09:15:54,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:15:54,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:15:54,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:54,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:54,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:54,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:15:54,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:54,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 09:15:54,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:54,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:54,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:15:54,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:15:54,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 09:15:54,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:15:54,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 09:15:54,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:54,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:55,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:55,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-29 09:15:55,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:55,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-10-29 09:15:55,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:55,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:55,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 09:15:55,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:15:55,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 09:15:55,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:55,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:15:55,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:55,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:55,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:55,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 09:15:55,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:55,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-10-29 09:15:55,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:55,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:55,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 09:15:55,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:15:55,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 09:15:55,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:15:55,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-29 09:15:55,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:55,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:55,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:55,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 09:15:55,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:55,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-29 09:15:55,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:55,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:55,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 09:15:55,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:15:55,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 09:15:55,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:15:55,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:15:55,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:15:55,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:15:55,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:15:55,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:15:55,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:15:55,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 09:15:55,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:15:55,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:15:55,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:15:55,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:15:55,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:15:55,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:15:55,946 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 09:15:55,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1523377813] [2020-10-29 09:15:55,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:15:55,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-29 09:15:55,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356391629] [2020-10-29 09:15:55,951 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 09:15:55,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:15:55,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 09:15:55,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2020-10-29 09:15:55,954 INFO L87 Difference]: Start difference. First operand 292 states and 352 transitions. Second operand 19 states. [2020-10-29 09:15:56,559 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 45 [2020-10-29 09:16:00,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:16:00,987 INFO L93 Difference]: Finished difference Result 331 states and 397 transitions. [2020-10-29 09:16:00,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-29 09:16:00,989 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 54 [2020-10-29 09:16:00,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:16:00,993 INFO L225 Difference]: With dead ends: 331 [2020-10-29 09:16:00,993 INFO L226 Difference]: Without dead ends: 326 [2020-10-29 09:16:00,994 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=287, Invalid=1519, Unknown=0, NotChecked=0, Total=1806 [2020-10-29 09:16:00,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-10-29 09:16:01,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 292. [2020-10-29 09:16:01,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-10-29 09:16:01,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 351 transitions. [2020-10-29 09:16:01,051 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 351 transitions. Word has length 54 [2020-10-29 09:16:01,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:16:01,051 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 351 transitions. [2020-10-29 09:16:01,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 09:16:01,051 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 351 transitions. [2020-10-29 09:16:01,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-29 09:16:01,054 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:16:01,054 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 09:16:01,054 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 09:16:01,054 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:16:01,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:16:01,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1930027834, now seen corresponding path program 1 times [2020-10-29 09:16:01,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:16:01,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [704951076] [2020-10-29 09:16:01,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:16:01,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:01,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:04,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:04,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-29 09:16:04,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:04,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3003 [2020-10-29 09:16:04,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:04,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:04,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-29 09:16:04,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 09:16:04,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-29 09:16:04,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:04,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:16:04,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:04,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:04,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:04,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:16:04,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:04,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 09:16:04,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:04,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:04,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:16:04,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:16:04,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 09:16:04,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:04,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 09:16:04,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:04,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:06,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:06,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-29 09:16:06,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:06,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1837 [2020-10-29 09:16:06,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:06,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:06,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-29 09:16:06,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:06,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-29 09:16:06,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:06,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:16:06,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:06,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:06,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:06,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 09:16:06,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:06,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-29 09:16:06,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:06,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:06,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 09:16:06,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:06,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 09:16:06,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:06,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-29 09:16:06,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:06,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:06,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:06,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 09:16:06,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:06,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-29 09:16:06,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:06,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:06,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 09:16:06,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:06,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 09:16:06,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:16:06,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:16:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:06,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:06,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:06,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:16:06,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:06,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 09:16:06,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:06,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:06,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:16:06,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:16:06,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:16:06,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:07,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 09:16:07,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:07,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:07,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:07,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 09:16:07,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:07,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-10-29 09:16:07,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:07,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:07,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 09:16:07,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:07,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 09:16:07,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:07,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-29 09:16:07,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:07,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:07,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:07,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 09:16:07,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:07,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-29 09:16:07,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:07,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:07,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 09:16:07,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:07,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 09:16:07,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:07,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:16:07,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:07,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:07,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:07,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:16:07,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:07,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 09:16:07,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:07,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:07,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 09:16:07,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:07,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 09:16:07,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:16:07,976 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 09:16:07,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [704951076] [2020-10-29 09:16:07,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 09:16:07,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-29 09:16:07,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270871372] [2020-10-29 09:16:07,979 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-29 09:16:07,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:16:07,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-29 09:16:07,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=565, Unknown=0, NotChecked=0, Total=650 [2020-10-29 09:16:07,983 INFO L87 Difference]: Start difference. First operand 292 states and 351 transitions. Second operand 26 states. [2020-10-29 09:16:08,591 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2020-10-29 09:16:10,338 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-10-29 09:16:14,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:16:14,254 INFO L93 Difference]: Finished difference Result 421 states and 506 transitions. [2020-10-29 09:16:14,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-29 09:16:14,255 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 63 [2020-10-29 09:16:14,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:16:14,259 INFO L225 Difference]: With dead ends: 421 [2020-10-29 09:16:14,259 INFO L226 Difference]: Without dead ends: 416 [2020-10-29 09:16:14,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=366, Invalid=2286, Unknown=0, NotChecked=0, Total=2652 [2020-10-29 09:16:14,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2020-10-29 09:16:14,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 385. [2020-10-29 09:16:14,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-10-29 09:16:14,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 465 transitions. [2020-10-29 09:16:14,304 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 465 transitions. Word has length 63 [2020-10-29 09:16:14,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:16:14,304 INFO L481 AbstractCegarLoop]: Abstraction has 385 states and 465 transitions. [2020-10-29 09:16:14,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-29 09:16:14,304 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 465 transitions. [2020-10-29 09:16:14,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-29 09:16:14,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:16:14,306 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 09:16:14,306 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 09:16:14,306 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:16:14,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:16:14,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1452185530, now seen corresponding path program 1 times [2020-10-29 09:16:14,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:16:14,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [734489846] [2020-10-29 09:16:14,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:16:14,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:14,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:15,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:15,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 09:16:15,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:15,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 802 [2020-10-29 09:16:15,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:15,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:15,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-29 09:16:15,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 09:16:15,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-29 09:16:15,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:15,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:16:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:15,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:15,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:15,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:16:15,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:15,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 09:16:15,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:15,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:15,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:16:15,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:16:15,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 09:16:15,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:15,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 09:16:15,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:15,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:15,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:15,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-29 09:16:15,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:15,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-10-29 09:16:15,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:15,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:15,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 09:16:15,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:15,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 09:16:15,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:15,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:16:15,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:15,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:16,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:16,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 09:16:16,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:16,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 266 [2020-10-29 09:16:16,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:16,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:16,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 09:16:16,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:16,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 09:16:16,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:16,475 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-10-29 09:16:16,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-29 09:16:16,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:16,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:16,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:16,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 09:16:16,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:16,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-29 09:16:16,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:16,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:16,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 09:16:16,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:16,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 09:16:16,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:16:16,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:16:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:16,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:16,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:16,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:16:16,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:16,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 09:16:16,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:16,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:16,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:16:16,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:16:16,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:16:16,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:16:16,961 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 09:16:16,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [734489846] [2020-10-29 09:16:16,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:16:16,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-29 09:16:16,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334468539] [2020-10-29 09:16:16,963 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-29 09:16:16,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:16:16,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-29 09:16:16,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2020-10-29 09:16:16,965 INFO L87 Difference]: Start difference. First operand 385 states and 465 transitions. Second operand 20 states. [2020-10-29 09:16:22,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:16:22,404 INFO L93 Difference]: Finished difference Result 409 states and 490 transitions. [2020-10-29 09:16:22,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-29 09:16:22,406 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 57 [2020-10-29 09:16:22,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:16:22,409 INFO L225 Difference]: With dead ends: 409 [2020-10-29 09:16:22,410 INFO L226 Difference]: Without dead ends: 404 [2020-10-29 09:16:22,411 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=223, Invalid=1337, Unknown=0, NotChecked=0, Total=1560 [2020-10-29 09:16:22,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2020-10-29 09:16:22,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 385. [2020-10-29 09:16:22,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-10-29 09:16:22,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 464 transitions. [2020-10-29 09:16:22,457 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 464 transitions. Word has length 57 [2020-10-29 09:16:22,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:16:22,457 INFO L481 AbstractCegarLoop]: Abstraction has 385 states and 464 transitions. [2020-10-29 09:16:22,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-29 09:16:22,457 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 464 transitions. [2020-10-29 09:16:22,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-29 09:16:22,459 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:16:22,459 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 09:16:22,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 09:16:22,459 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:16:22,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:16:22,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1537962617, now seen corresponding path program 1 times [2020-10-29 09:16:22,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:16:22,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1188386450] [2020-10-29 09:16:22,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:16:22,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:22,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:23,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:23,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-29 09:16:23,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:23,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 675 [2020-10-29 09:16:23,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:23,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:23,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-29 09:16:23,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 09:16:23,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-29 09:16:23,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:23,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:16:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:23,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:23,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:23,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:16:23,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:23,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 09:16:23,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:23,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:23,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:16:23,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:16:23,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 09:16:23,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:23,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 09:16:23,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:23,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:23,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:23,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-29 09:16:23,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:23,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-10-29 09:16:23,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:23,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:23,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 09:16:23,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:23,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 09:16:23,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:23,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:16:23,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:23,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:24,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:24,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 09:16:24,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:24,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-29 09:16:24,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:24,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:24,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 09:16:24,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:24,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 09:16:24,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:24,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-29 09:16:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:24,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:24,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:24,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 09:16:24,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:24,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-29 09:16:24,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:24,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:24,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 09:16:24,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:24,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 09:16:24,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:24,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:16:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:24,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:24,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:24,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:16:24,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:24,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 09:16:24,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:24,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:24,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:16:24,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:16:24,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:16:24,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:16:24,775 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 09:16:24,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1188386450] [2020-10-29 09:16:24,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:16:24,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-29 09:16:24,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275568065] [2020-10-29 09:16:24,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-29 09:16:24,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:16:24,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-29 09:16:24,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2020-10-29 09:16:24,779 INFO L87 Difference]: Start difference. First operand 385 states and 464 transitions. Second operand 20 states. [2020-10-29 09:16:27,203 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-29 09:16:27,434 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-29 09:16:30,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:16:30,220 INFO L93 Difference]: Finished difference Result 408 states and 488 transitions. [2020-10-29 09:16:30,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-29 09:16:30,227 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 60 [2020-10-29 09:16:30,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:16:30,229 INFO L225 Difference]: With dead ends: 408 [2020-10-29 09:16:30,229 INFO L226 Difference]: Without dead ends: 403 [2020-10-29 09:16:30,231 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=223, Invalid=1337, Unknown=0, NotChecked=0, Total=1560 [2020-10-29 09:16:30,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2020-10-29 09:16:30,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 385. [2020-10-29 09:16:30,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-10-29 09:16:30,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 463 transitions. [2020-10-29 09:16:30,277 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 463 transitions. Word has length 60 [2020-10-29 09:16:30,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:16:30,277 INFO L481 AbstractCegarLoop]: Abstraction has 385 states and 463 transitions. [2020-10-29 09:16:30,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-29 09:16:30,277 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 463 transitions. [2020-10-29 09:16:30,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-29 09:16:30,278 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:16:30,279 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, 1, 1, 1] [2020-10-29 09:16:30,279 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 09:16:30,279 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:16:30,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:16:30,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1947238649, now seen corresponding path program 1 times [2020-10-29 09:16:30,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:16:30,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [171443979] [2020-10-29 09:16:30,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:16:30,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:30,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:30,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:31,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:31,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-29 09:16:31,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:16:31,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1389 [2020-10-29 09:16:31,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:31,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:31,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-29 09:16:31,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 09:16:31,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-29 09:16:31,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:31,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:16:31,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:31,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:31,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:31,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:16:31,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:31,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 09:16:31,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:31,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:31,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:16:31,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:16:31,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 09:16:31,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:31,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 09:16:31,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:31,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:32,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:32,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-29 09:16:32,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:32,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 293 [2020-10-29 09:16:32,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:32,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:32,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 09:16:32,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:32,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 09:16:32,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:32,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:16:32,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:32,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:32,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:32,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 09:16:32,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:32,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-29 09:16:32,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:32,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:32,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 09:16:32,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:32,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 09:16:32,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:32,817 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2020-10-29 09:16:32,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-29 09:16:32,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:32,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:32,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:32,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 09:16:33,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:33,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-29 09:16:33,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:33,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:33,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 09:16:33,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:33,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 09:16:33,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:33,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:16:33,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:33,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:33,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:33,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:16:33,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:33,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 09:16:33,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:33,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:33,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:16:33,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:16:33,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:16:33,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:33,269 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 09:16:33,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [171443979] [2020-10-29 09:16:33,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:16:33,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-10-29 09:16:33,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584396070] [2020-10-29 09:16:33,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-29 09:16:33,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:16:33,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-29 09:16:33,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2020-10-29 09:16:33,271 INFO L87 Difference]: Start difference. First operand 385 states and 463 transitions. Second operand 21 states. [2020-10-29 09:16:33,549 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2020-10-29 09:16:38,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:16:38,357 INFO L93 Difference]: Finished difference Result 407 states and 486 transitions. [2020-10-29 09:16:38,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-29 09:16:38,358 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 63 [2020-10-29 09:16:38,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:16:38,360 INFO L225 Difference]: With dead ends: 407 [2020-10-29 09:16:38,360 INFO L226 Difference]: Without dead ends: 402 [2020-10-29 09:16:38,361 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=215, Invalid=1267, Unknown=0, NotChecked=0, Total=1482 [2020-10-29 09:16:38,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2020-10-29 09:16:38,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 385. [2020-10-29 09:16:38,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-10-29 09:16:38,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 462 transitions. [2020-10-29 09:16:38,409 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 462 transitions. Word has length 63 [2020-10-29 09:16:38,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:16:38,409 INFO L481 AbstractCegarLoop]: Abstraction has 385 states and 462 transitions. [2020-10-29 09:16:38,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-29 09:16:38,410 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 462 transitions. [2020-10-29 09:16:38,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-29 09:16:38,410 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:16:38,411 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, 1, 1, 1] [2020-10-29 09:16:38,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 09:16:38,411 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:16:38,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:16:38,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1170400281, now seen corresponding path program 1 times [2020-10-29 09:16:38,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:16:38,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1794758897] [2020-10-29 09:16:38,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:16:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:38,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:40,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:40,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 09:16:40,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:40,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1922 [2020-10-29 09:16:40,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:40,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:40,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-29 09:16:40,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 09:16:40,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-29 09:16:40,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:40,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:16:40,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:40,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:40,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:40,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:16:40,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:40,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 09:16:40,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:40,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:40,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:16:40,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:16:40,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 09:16:40,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:40,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 09:16:40,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:40,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:42,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:42,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-29 09:16:42,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:42,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1452 [2020-10-29 09:16:42,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:42,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:42,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-29 09:16:42,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:42,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-29 09:16:42,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:42,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:16:42,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:42,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:42,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:42,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 09:16:42,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:42,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-29 09:16:42,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:42,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:42,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 09:16:42,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:42,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 09:16:42,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:42,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-29 09:16:42,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:42,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:42,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:42,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 09:16:42,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:42,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-29 09:16:42,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:42,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:42,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 09:16:42,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:42,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 09:16:42,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:42,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:16:42,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:42,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:42,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:42,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:16:42,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:42,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 09:16:42,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:42,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:42,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:16:42,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:16:42,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:16:42,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:43,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 09:16:43,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:43,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:43,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:43,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 09:16:43,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:43,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-29 09:16:43,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:43,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:43,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 09:16:43,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:43,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 09:16:43,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:43,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-29 09:16:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:43,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:43,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:43,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 09:16:43,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:43,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-29 09:16:43,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:43,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:43,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 09:16:43,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:43,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 09:16:43,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:43,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:16:43,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:43,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:43,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:43,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:16:43,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:43,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 09:16:43,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:43,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:43,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 09:16:43,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:43,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 09:16:43,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:43,820 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 09:16:43,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1794758897] [2020-10-29 09:16:43,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 09:16:43,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-29 09:16:43,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123069371] [2020-10-29 09:16:43,822 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-29 09:16:43,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:16:43,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-29 09:16:43,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=611, Unknown=0, NotChecked=0, Total=702 [2020-10-29 09:16:43,823 INFO L87 Difference]: Start difference. First operand 385 states and 462 transitions. Second operand 27 states. [2020-10-29 09:16:44,609 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-29 09:16:45,649 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-29 09:16:45,971 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2020-10-29 09:16:46,150 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2020-10-29 09:16:46,470 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2020-10-29 09:16:46,755 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 70 [2020-10-29 09:16:47,039 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2020-10-29 09:16:47,632 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-29 09:16:48,030 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2020-10-29 09:16:50,067 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 65 [2020-10-29 09:16:50,257 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 67 [2020-10-29 09:16:50,995 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-10-29 09:16:52,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:16:52,614 INFO L93 Difference]: Finished difference Result 447 states and 538 transitions. [2020-10-29 09:16:52,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-29 09:16:52,615 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 66 [2020-10-29 09:16:52,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:16:52,619 INFO L225 Difference]: With dead ends: 447 [2020-10-29 09:16:52,619 INFO L226 Difference]: Without dead ends: 442 [2020-10-29 09:16:52,621 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=469, Invalid=2611, Unknown=0, NotChecked=0, Total=3080 [2020-10-29 09:16:52,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-10-29 09:16:52,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 393. [2020-10-29 09:16:52,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-10-29 09:16:52,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 474 transitions. [2020-10-29 09:16:52,674 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 474 transitions. Word has length 66 [2020-10-29 09:16:52,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:16:52,675 INFO L481 AbstractCegarLoop]: Abstraction has 393 states and 474 transitions. [2020-10-29 09:16:52,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-29 09:16:52,675 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 474 transitions. [2020-10-29 09:16:52,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-29 09:16:52,676 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:16:52,676 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, 1, 1, 1, 1, 1, 1] [2020-10-29 09:16:52,676 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 09:16:52,677 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:16:52,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:16:52,677 INFO L82 PathProgramCache]: Analyzing trace with hash -1102816347, now seen corresponding path program 1 times [2020-10-29 09:16:52,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:16:52,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1453340436] [2020-10-29 09:16:52,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:16:52,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:52,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:54,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:54,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-29 09:16:54,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:54,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2228 [2020-10-29 09:16:54,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:54,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:54,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-29 09:16:54,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 09:16:54,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-29 09:16:54,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:55,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:16:55,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:55,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:55,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:55,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:16:55,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:55,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 09:16:55,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:55,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:55,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:16:55,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:16:55,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 09:16:55,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:16:55,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 09:16:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:55,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:57,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:57,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-29 09:16:57,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:57,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1927 [2020-10-29 09:16:57,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:57,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:57,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-29 09:16:57,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:57,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-29 09:16:57,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:57,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:16:57,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:57,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:57,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:57,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 09:16:57,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:57,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-29 09:16:57,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:57,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:57,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 09:16:57,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:57,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 09:16:57,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:58,136 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-10-29 09:16:58,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-29 09:16:58,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:58,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:58,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:58,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 09:16:58,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:58,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-29 09:16:58,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:58,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:58,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 09:16:58,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:58,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 09:16:58,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:58,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:16:58,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:58,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:58,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:58,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:16:58,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:58,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 09:16:58,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:58,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:58,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:16:58,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:16:58,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:16:58,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:58,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 09:16:58,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:58,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:58,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:58,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 09:16:58,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:58,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-10-29 09:16:58,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:58,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:58,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 09:16:58,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:58,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 09:16:58,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:16:59,453 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2020-10-29 09:16:59,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-29 09:16:59,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:16:59,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:16:59,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:16:59,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 09:16:59,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:16:59,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-29 09:16:59,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:16:59,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:16:59,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 09:16:59,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:16:59,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 09:16:59,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:17:00,772 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 68 [2020-10-29 09:17:01,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 09:17:01,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:17:01,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:17:01,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:17:01,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:17:01,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:17:01,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-29 09:17:01,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:17:01,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:17:01,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 09:17:01,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 09:17:01,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 09:17:01,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0