/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block 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=NARROWEST --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 -i ../../../trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 10:25:38,949 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 10:25:38,952 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 10:25:38,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 10:25:38,974 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 10:25:38,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 10:25:38,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 10:25:38,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 10:25:38,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 10:25:38,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 10:25:38,981 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 10:25:38,982 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 10:25:38,983 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 10:25:38,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 10:25:38,984 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 10:25:38,985 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 10:25:38,986 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 10:25:38,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 10:25:38,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 10:25:38,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 10:25:38,991 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 10:25:38,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 10:25:38,993 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 10:25:38,994 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 10:25:38,996 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 10:25:38,997 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 10:25:38,997 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 10:25:38,998 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 10:25:38,998 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 10:25:38,999 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 10:25:38,999 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 10:25:39,000 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 10:25:39,000 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 10:25:39,001 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 10:25:39,002 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 10:25:39,002 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 10:25:39,003 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 10:25:39,003 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 10:25:39,003 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 10:25:39,004 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 10:25:39,005 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 10:25:39,005 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 [2020-10-13 10:25:39,027 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 10:25:39,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 10:25:39,028 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 10:25:39,028 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 10:25:39,029 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 10:25:39,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 10:25:39,029 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 10:25:39,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 10:25:39,029 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 10:25:39,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 10:25:39,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 10:25:39,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 10:25:39,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 10:25:39,030 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 10:25:39,030 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 10:25:39,031 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 10:25:39,031 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 10:25:39,031 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 10:25:39,031 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 10:25:39,031 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 10:25:39,032 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 10:25:39,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 10:25:39,032 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 10:25:39,032 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 10:25:39,032 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 10:25:39,033 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 10:25:39,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 10:25:39,033 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 10:25:39,033 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 10:25:39,033 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> 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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 10:25:39,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 10:25:39,307 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 10:25:39,310 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 10:25:39,311 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 10:25:39,312 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 10:25:39,312 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-1.i [2020-10-13 10:25:39,379 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a4442d864/0657d102e3e8480c806338ef5fe1cc7d/FLAG4db7e605b [2020-10-13 10:25:39,934 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 10:25:39,935 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-1.i [2020-10-13 10:25:39,951 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a4442d864/0657d102e3e8480c806338ef5fe1cc7d/FLAG4db7e605b [2020-10-13 10:25:40,238 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a4442d864/0657d102e3e8480c806338ef5fe1cc7d [2020-10-13 10:25:40,246 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 10:25:40,247 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 10:25:40,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 10:25:40,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 10:25:40,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 10:25:40,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:25:40" (1/1) ... [2020-10-13 10:25:40,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a898676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:25:40, skipping insertion in model container [2020-10-13 10:25:40,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:25:40" (1/1) ... [2020-10-13 10:25:40,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 10:25:40,328 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 10:25:40,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:25:40,858 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 10:25:40,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:25:41,048 INFO L208 MainTranslator]: Completed translation [2020-10-13 10:25:41,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:25:41 WrapperNode [2020-10-13 10:25:41,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 10:25:41,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 10:25:41,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 10:25:41,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 10:25:41,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:25:41" (1/1) ... [2020-10-13 10:25:41,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:25:41" (1/1) ... [2020-10-13 10:25:41,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:25:41" (1/1) ... [2020-10-13 10:25:41,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:25:41" (1/1) ... [2020-10-13 10:25:41,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:25:41" (1/1) ... [2020-10-13 10:25:41,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:25:41" (1/1) ... [2020-10-13 10:25:41,138 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:25:41" (1/1) ... [2020-10-13 10:25:41,149 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 10:25:41,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 10:25:41,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 10:25:41,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 10:25:41,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:25:41" (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 [2020-10-13 10:25:41,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 10:25:41,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 10:25:41,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-13 10:25:41,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-13 10:25:41,216 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-10-13 10:25:41,217 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2020-10-13 10:25:41,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-10-13 10:25:41,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2020-10-13 10:25:41,217 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-10-13 10:25:41,217 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2020-10-13 10:25:41,218 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2020-10-13 10:25:41,218 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2020-10-13 10:25:41,218 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2020-10-13 10:25:41,218 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2020-10-13 10:25:41,218 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2020-10-13 10:25:41,219 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2020-10-13 10:25:41,219 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 10:25:41,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 10:25:41,219 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-13 10:25:41,219 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-13 10:25:41,219 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-13 10:25:41,220 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-13 10:25:41,220 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-13 10:25:41,220 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-13 10:25:41,220 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-13 10:25:41,220 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-13 10:25:41,221 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-13 10:25:41,221 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-13 10:25:41,221 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-13 10:25:41,221 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-13 10:25:41,221 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-13 10:25:41,222 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-13 10:25:41,222 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-13 10:25:41,222 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-13 10:25:41,222 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-13 10:25:41,222 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-13 10:25:41,223 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-13 10:25:41,223 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-13 10:25:41,223 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-13 10:25:41,223 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-13 10:25:41,223 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-13 10:25:41,224 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-13 10:25:41,224 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-13 10:25:41,224 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-13 10:25:41,224 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-13 10:25:41,224 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-13 10:25:41,224 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-13 10:25:41,225 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-13 10:25:41,225 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-13 10:25:41,225 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-13 10:25:41,225 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-13 10:25:41,225 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-13 10:25:41,226 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-13 10:25:41,226 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-13 10:25:41,226 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-13 10:25:41,226 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-13 10:25:41,226 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-13 10:25:41,226 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-13 10:25:41,227 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-13 10:25:41,227 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-13 10:25:41,227 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-13 10:25:41,227 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-13 10:25:41,227 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-13 10:25:41,227 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-13 10:25:41,228 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-13 10:25:41,228 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-13 10:25:41,228 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-13 10:25:41,228 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-13 10:25:41,228 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-13 10:25:41,228 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-13 10:25:41,229 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 10:25:41,229 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 10:25:41,229 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-13 10:25:41,229 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 10:25:41,229 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-13 10:25:41,230 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-13 10:25:41,230 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-13 10:25:41,230 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-13 10:25:41,230 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 10:25:41,230 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-13 10:25:41,230 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-13 10:25:41,231 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 10:25:41,231 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-13 10:25:41,231 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-13 10:25:41,231 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-13 10:25:41,231 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-13 10:25:41,232 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-13 10:25:41,232 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-13 10:25:41,232 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-13 10:25:41,232 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-13 10:25:41,232 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-13 10:25:41,232 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-13 10:25:41,232 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-13 10:25:41,233 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-13 10:25:41,233 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-13 10:25:41,233 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-13 10:25:41,233 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-13 10:25:41,233 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-13 10:25:41,233 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-13 10:25:41,234 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-13 10:25:41,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-13 10:25:41,234 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-13 10:25:41,234 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-13 10:25:41,234 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-13 10:25:41,235 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-13 10:25:41,235 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-13 10:25:41,235 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-13 10:25:41,235 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-13 10:25:41,235 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-13 10:25:41,235 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-13 10:25:41,236 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-13 10:25:41,236 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-13 10:25:41,236 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-13 10:25:41,236 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-13 10:25:41,236 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-13 10:25:41,236 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-13 10:25:41,237 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-13 10:25:41,237 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-13 10:25:41,237 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-13 10:25:41,237 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-13 10:25:41,237 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-10-13 10:25:41,238 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-10-13 10:25:41,238 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-10-13 10:25:41,238 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-10-13 10:25:41,238 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-10-13 10:25:41,238 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-10-13 10:25:41,238 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-10-13 10:25:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-10-13 10:25:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-10-13 10:25:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-10-13 10:25:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-10-13 10:25:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-10-13 10:25:41,240 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-10-13 10:25:41,240 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-10-13 10:25:41,240 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-10-13 10:25:41,240 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-10-13 10:25:41,240 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-10-13 10:25:41,240 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-10-13 10:25:41,241 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-10-13 10:25:41,241 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-10-13 10:25:41,241 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-10-13 10:25:41,241 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-10-13 10:25:41,241 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-10-13 10:25:41,241 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-10-13 10:25:41,242 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-10-13 10:25:41,242 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-10-13 10:25:41,242 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-10-13 10:25:41,242 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-10-13 10:25:41,242 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-10-13 10:25:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-10-13 10:25:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-10-13 10:25:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-10-13 10:25:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-10-13 10:25:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-10-13 10:25:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-10-13 10:25:41,244 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-10-13 10:25:41,244 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-10-13 10:25:41,244 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-10-13 10:25:41,244 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-13 10:25:41,244 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-10-13 10:25:41,244 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-10-13 10:25:41,245 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-10-13 10:25:41,245 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-10-13 10:25:41,245 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-13 10:25:41,245 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-10-13 10:25:41,245 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-10-13 10:25:41,245 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-10-13 10:25:41,246 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-10-13 10:25:41,246 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-10-13 10:25:41,246 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-10-13 10:25:41,246 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-10-13 10:25:41,246 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-10-13 10:25:41,246 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-10-13 10:25:41,247 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-10-13 10:25:41,247 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-10-13 10:25:41,247 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-10-13 10:25:41,247 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-10-13 10:25:41,247 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-10-13 10:25:41,247 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-10-13 10:25:41,248 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-10-13 10:25:41,248 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-10-13 10:25:41,248 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-10-13 10:25:41,248 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-10-13 10:25:41,248 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-10-13 10:25:41,248 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-10-13 10:25:41,249 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-10-13 10:25:41,249 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-10-13 10:25:41,249 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-10-13 10:25:41,249 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-10-13 10:25:41,249 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-10-13 10:25:41,249 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-10-13 10:25:41,250 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-10-13 10:25:41,250 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-10-13 10:25:41,250 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-10-13 10:25:41,250 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-10-13 10:25:41,250 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-10-13 10:25:41,250 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-10-13 10:25:41,250 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-10-13 10:25:41,251 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-10-13 10:25:41,251 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-10-13 10:25:41,251 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-10-13 10:25:41,251 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-10-13 10:25:41,251 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-10-13 10:25:41,251 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-10-13 10:25:41,252 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-10-13 10:25:41,252 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-10-13 10:25:41,252 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-10-13 10:25:41,252 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-10-13 10:25:41,252 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-10-13 10:25:41,252 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-10-13 10:25:41,253 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-10-13 10:25:41,253 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-10-13 10:25:41,253 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-10-13 10:25:41,253 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-10-13 10:25:41,253 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-10-13 10:25:41,253 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-10-13 10:25:41,253 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-10-13 10:25:41,253 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-10-13 10:25:41,254 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-10-13 10:25:41,254 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-10-13 10:25:41,254 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-10-13 10:25:41,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 10:25:41,254 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-10-13 10:25:41,254 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2020-10-13 10:25:41,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 10:25:41,255 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-10-13 10:25:41,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 10:25:41,255 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2020-10-13 10:25:41,255 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-10-13 10:25:41,255 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2020-10-13 10:25:41,255 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2020-10-13 10:25:41,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 10:25:41,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 10:25:41,256 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2020-10-13 10:25:41,256 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2020-10-13 10:25:41,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 10:25:41,256 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2020-10-13 10:25:41,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 10:25:41,256 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2020-10-13 10:25:41,256 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2020-10-13 10:25:41,257 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 10:25:41,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 10:25:41,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 10:25:41,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 10:25:41,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 10:25:42,044 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 10:25:42,045 INFO L295 CfgBuilder]: Removed 41 assume(true) statements. [2020-10-13 10:25:42,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:25:42 BoogieIcfgContainer [2020-10-13 10:25:42,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 10:25:42,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 10:25:42,051 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 10:25:42,054 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 10:25:42,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:25:40" (1/3) ... [2020-10-13 10:25:42,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff3d2ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:25:42, skipping insertion in model container [2020-10-13 10:25:42,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:25:41" (2/3) ... [2020-10-13 10:25:42,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff3d2ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:25:42, skipping insertion in model container [2020-10-13 10:25:42,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:25:42" (3/3) ... [2020-10-13 10:25:42,058 INFO L109 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-1.i [2020-10-13 10:25:42,068 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 10:25:42,076 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 10:25:42,089 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 10:25:42,112 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 10:25:42,113 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 10:25:42,113 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 10:25:42,113 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 10:25:42,114 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 10:25:42,114 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 10:25:42,114 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 10:25:42,114 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 10:25:42,136 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states. [2020-10-13 10:25:42,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-13 10:25:42,141 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:25:42,142 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:25:42,143 INFO L427 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:25:42,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:25:42,149 INFO L82 PathProgramCache]: Analyzing trace with hash -663354135, now seen corresponding path program 1 times [2020-10-13 10:25:42,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:25:42,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [712475028] [2020-10-13 10:25:42,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:25:42,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:42,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:42,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:42,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:42,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 10:25:42,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:25:42,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-10-13 10:25:42,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:42,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:25:42,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 10:25:42,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:25:42,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-13 10:25:42,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:25:42,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:42,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:42,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:42,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:25:42,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:42,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 10:25:42,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:42,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:25:42,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:42,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:25:42,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:42,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 10:25:42,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:42,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:42,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:42,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:25:42,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:42,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:25:42,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:42,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:25:42,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 10:25:42,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:25:42,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:42,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:25:42,721 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [712475028] [2020-10-13 10:25:42,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:25:42,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 10:25:42,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412682739] [2020-10-13 10:25:42,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 10:25:42,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:25:42,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 10:25:42,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 10:25:42,745 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 4 states. [2020-10-13 10:25:43,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:25:43,232 INFO L93 Difference]: Finished difference Result 302 states and 489 transitions. [2020-10-13 10:25:43,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-13 10:25:43,234 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-13 10:25:43,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:25:43,246 INFO L225 Difference]: With dead ends: 302 [2020-10-13 10:25:43,247 INFO L226 Difference]: Without dead ends: 148 [2020-10-13 10:25:43,253 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 10:25:43,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-13 10:25:43,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 130. [2020-10-13 10:25:43,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-13 10:25:43,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 151 transitions. [2020-10-13 10:25:43,313 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 151 transitions. Word has length 14 [2020-10-13 10:25:43,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:25:43,313 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 151 transitions. [2020-10-13 10:25:43,313 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 10:25:43,314 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 151 transitions. [2020-10-13 10:25:43,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-13 10:25:43,315 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:25:43,316 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] [2020-10-13 10:25:43,316 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 10:25:43,316 INFO L427 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:25:43,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:25:43,317 INFO L82 PathProgramCache]: Analyzing trace with hash 151916718, now seen corresponding path program 1 times [2020-10-13 10:25:43,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:25:43,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1626275866] [2020-10-13 10:25:43,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:25:43,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:43,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:43,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:43,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 10:25:43,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:43,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 334 [2020-10-13 10:25:43,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:43,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:25:43,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 10:25:43,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-13 10:25:43,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:43,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:25:43,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:43,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:43,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:43,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:25:43,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:43,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 10:25:43,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:43,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:25:43,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:43,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 10:25:43,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:43,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 10:25:43,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:43,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:43,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:43,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 10:25:43,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:43,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-13 10:25:43,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:43,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:25:43,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:43,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 10:25:43,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 10:25:43,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:25:43,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:43,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:43,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:43,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 10:25:43,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:43,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 10:25:43,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:43,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:25:43,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:43,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:25:43,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:44,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 10:25:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:44,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:44,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:44,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 10:25:44,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:44,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 10:25:44,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:44,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:25:44,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:44,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:25:44,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:44,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:25:44,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:44,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:44,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:44,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:25:44,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:44,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 10:25:44,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:44,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:25:44,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:44,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:25:44,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:44,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:25:44,062 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1626275866] [2020-10-13 10:25:44,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:25:44,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 10:25:44,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139904136] [2020-10-13 10:25:44,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 10:25:44,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:25:44,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 10:25:44,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-13 10:25:44,066 INFO L87 Difference]: Start difference. First operand 130 states and 151 transitions. Second operand 8 states. [2020-10-13 10:25:44,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:25:44,753 INFO L93 Difference]: Finished difference Result 150 states and 179 transitions. [2020-10-13 10:25:44,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 10:25:44,754 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2020-10-13 10:25:44,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:25:44,758 INFO L225 Difference]: With dead ends: 150 [2020-10-13 10:25:44,758 INFO L226 Difference]: Without dead ends: 147 [2020-10-13 10:25:44,762 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-10-13 10:25:44,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-10-13 10:25:44,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 129. [2020-10-13 10:25:44,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-10-13 10:25:44,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 149 transitions. [2020-10-13 10:25:44,782 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 149 transitions. Word has length 34 [2020-10-13 10:25:44,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:25:44,783 INFO L479 AbstractCegarLoop]: Abstraction has 129 states and 149 transitions. [2020-10-13 10:25:44,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 10:25:44,783 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 149 transitions. [2020-10-13 10:25:44,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-13 10:25:44,784 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:25:44,784 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] [2020-10-13 10:25:44,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 10:25:44,784 INFO L427 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:25:44,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:25:44,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1411633869, now seen corresponding path program 1 times [2020-10-13 10:25:44,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:25:44,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1384987827] [2020-10-13 10:25:44,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:25:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:44,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:45,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:45,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 10:25:45,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:45,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 435 [2020-10-13 10:25:45,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:45,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 10:25:45,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 10:25:45,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 10:25:45,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:25:45,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:25:45,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:45,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:45,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:45,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:25:45,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:45,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 10:25:45,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:45,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:25:45,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:45,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 10:25:45,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:25:45,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 10:25:45,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:45,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:45,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:45,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 10:25:45,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:45,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-10-13 10:25:45,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:45,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 10:25:45,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:45,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 10:25:45,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:25:45,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:25:45,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:45,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:46,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:46,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 10:25:46,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:46,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-10-13 10:25:46,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:46,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 10:25:46,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:46,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 10:25:46,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:25:46,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 10:25:46,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:46,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:46,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:46,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 10:25:46,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:46,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-13 10:25:46,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:46,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 10:25:46,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:46,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 10:25:46,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:46,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:25:46,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:46,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:46,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:46,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:25:46,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:46,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 10:25:46,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:46,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:25:46,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:46,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:25:46,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:46,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:25:46,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1384987827] [2020-10-13 10:25:46,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:25:46,378 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-13 10:25:46,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717274725] [2020-10-13 10:25:46,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 10:25:46,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:25:46,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 10:25:46,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2020-10-13 10:25:46,381 INFO L87 Difference]: Start difference. First operand 129 states and 149 transitions. Second operand 16 states. [2020-10-13 10:25:48,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:25:48,456 INFO L93 Difference]: Finished difference Result 244 states and 291 transitions. [2020-10-13 10:25:48,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 10:25:48,456 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 37 [2020-10-13 10:25:48,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:25:48,460 INFO L225 Difference]: With dead ends: 244 [2020-10-13 10:25:48,460 INFO L226 Difference]: Without dead ends: 238 [2020-10-13 10:25:48,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=196, Invalid=860, Unknown=0, NotChecked=0, Total=1056 [2020-10-13 10:25:48,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-10-13 10:25:48,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 209. [2020-10-13 10:25:48,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-10-13 10:25:48,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 251 transitions. [2020-10-13 10:25:48,525 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 251 transitions. Word has length 37 [2020-10-13 10:25:48,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:25:48,545 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 251 transitions. [2020-10-13 10:25:48,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 10:25:48,546 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 251 transitions. [2020-10-13 10:25:48,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-13 10:25:48,547 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:25:48,547 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] [2020-10-13 10:25:48,547 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 10:25:48,547 INFO L427 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:25:48,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:25:48,548 INFO L82 PathProgramCache]: Analyzing trace with hash 2082496891, now seen corresponding path program 1 times [2020-10-13 10:25:48,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:25:48,548 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1278730795] [2020-10-13 10:25:48,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:25:48,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:48,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:49,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:49,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 10:25:49,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:49,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 637 [2020-10-13 10:25:49,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:49,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-13 10:25:49,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 10:25:49,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-13 10:25:49,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:49,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:25:49,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:49,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:49,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:49,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:25:49,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:49,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 10:25:49,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:49,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:25:49,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:49,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 10:25:49,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:49,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 10:25:49,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:49,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:49,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:49,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 10:25:49,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:49,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-10-13 10:25:49,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:49,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 10:25:49,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:25:49,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 10:25:49,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:49,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:25:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:49,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:49,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:49,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 10:25:49,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:49,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-13 10:25:49,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:49,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 10:25:49,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:25:49,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 10:25:49,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:50,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 10:25:50,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:50,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:50,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:50,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 10:25:50,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:50,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-13 10:25:50,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:50,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 10:25:50,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:25:50,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 10:25:50,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:25:50,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:25:50,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:50,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:50,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:50,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:25:50,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:50,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 10:25:50,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:50,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:25:50,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:50,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:25:50,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:25:50,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:25:50,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1278730795] [2020-10-13 10:25:50,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:25:50,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-13 10:25:50,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339645233] [2020-10-13 10:25:50,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-13 10:25:50,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:25:50,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-13 10:25:50,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2020-10-13 10:25:50,379 INFO L87 Difference]: Start difference. First operand 209 states and 251 transitions. Second operand 18 states. [2020-10-13 10:25:53,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:25:53,454 INFO L93 Difference]: Finished difference Result 329 states and 399 transitions. [2020-10-13 10:25:53,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-13 10:25:53,457 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 40 [2020-10-13 10:25:53,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:25:53,459 INFO L225 Difference]: With dead ends: 329 [2020-10-13 10:25:53,459 INFO L226 Difference]: Without dead ends: 326 [2020-10-13 10:25:53,460 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=207, Invalid=1199, Unknown=0, NotChecked=0, Total=1406 [2020-10-13 10:25:53,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-10-13 10:25:53,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 290. [2020-10-13 10:25:53,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-13 10:25:53,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 353 transitions. [2020-10-13 10:25:53,490 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 353 transitions. Word has length 40 [2020-10-13 10:25:53,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:25:53,491 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 353 transitions. [2020-10-13 10:25:53,491 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-13 10:25:53,491 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 353 transitions. [2020-10-13 10:25:53,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-13 10:25:53,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:25:53,492 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] [2020-10-13 10:25:53,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 10:25:53,493 INFO L427 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:25:53,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:25:53,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1376068061, now seen corresponding path program 1 times [2020-10-13 10:25:53,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:25:53,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [409126174] [2020-10-13 10:25:53,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:25:53,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:53,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:54,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:54,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-13 10:25:54,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:54,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 582 [2020-10-13 10:25:54,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:54,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-13 10:25:54,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 10:25:54,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-13 10:25:54,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:54,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:25:54,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:54,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:54,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:54,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:25:54,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:54,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:25:54,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:54,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:25:54,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:54,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 10:25:54,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:54,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 10:25:54,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:54,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:54,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:54,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 10:25:54,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:54,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-10-13 10:25:54,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:54,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 10:25:54,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:25:54,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 10:25:54,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:54,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:25:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:54,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:54,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:54,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 10:25:54,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:54,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-13 10:25:54,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:54,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 10:25:54,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:25:54,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 10:25:54,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:25:54,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 10:25:54,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:54,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:54,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:54,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 10:25:54,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:54,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-13 10:25:54,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:54,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 10:25:54,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:25:54,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 10:25:54,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:54,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:25:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:55,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:55,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:55,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:25:55,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:55,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 10:25:55,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:55,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:25:55,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:55,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:25:55,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:55,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:25:55,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [409126174] [2020-10-13 10:25:55,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:25:55,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-13 10:25:55,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904350676] [2020-10-13 10:25:55,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-13 10:25:55,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:25:55,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-13 10:25:55,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2020-10-13 10:25:55,081 INFO L87 Difference]: Start difference. First operand 290 states and 353 transitions. Second operand 18 states. [2020-10-13 10:25:57,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:25:57,918 INFO L93 Difference]: Finished difference Result 323 states and 390 transitions. [2020-10-13 10:25:57,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-13 10:25:57,919 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 43 [2020-10-13 10:25:57,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:25:57,922 INFO L225 Difference]: With dead ends: 323 [2020-10-13 10:25:57,922 INFO L226 Difference]: Without dead ends: 320 [2020-10-13 10:25:57,923 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=200, Invalid=1060, Unknown=0, NotChecked=0, Total=1260 [2020-10-13 10:25:57,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-10-13 10:25:57,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 290. [2020-10-13 10:25:57,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-13 10:25:57,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 352 transitions. [2020-10-13 10:25:57,952 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 352 transitions. Word has length 43 [2020-10-13 10:25:57,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:25:57,952 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 352 transitions. [2020-10-13 10:25:57,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-13 10:25:57,953 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 352 transitions. [2020-10-13 10:25:57,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-13 10:25:57,954 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:25:57,954 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] [2020-10-13 10:25:57,954 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 10:25:57,954 INFO L427 AbstractCegarLoop]: === Iteration 6 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:25:57,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:25:57,955 INFO L82 PathProgramCache]: Analyzing trace with hash 796266502, now seen corresponding path program 1 times [2020-10-13 10:25:57,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:25:57,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1468526590] [2020-10-13 10:25:57,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:25:57,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:57,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:58,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:58,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 10:25:58,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:58,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 441 [2020-10-13 10:25:58,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:58,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 10:25:58,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 10:25:58,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 10:25:58,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:25:58,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:25:58,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:58,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:58,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:58,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:25:58,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:58,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:25:58,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:58,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:25:58,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:58,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 10:25:58,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:25:58,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 10:25:58,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:58,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:59,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:59,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 10:25:59,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:59,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 337 [2020-10-13 10:25:59,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:59,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 10:25:59,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:25:59,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 10:25:59,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:59,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:25:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:59,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:59,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:59,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 10:25:59,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:59,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-13 10:25:59,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:59,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 10:25:59,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:25:59,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 10:25:59,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:59,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 10:25:59,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:59,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:59,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:59,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 10:25:59,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:59,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-13 10:25:59,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:59,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 10:25:59,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:25:59,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 10:25:59,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:59,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:25:59,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:59,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:59,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:59,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:25:59,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:59,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 10:25:59,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:59,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:25:59,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:59,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:25:59,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:59,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:25:59,877 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1468526590] [2020-10-13 10:25:59,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:25:59,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-13 10:25:59,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081378379] [2020-10-13 10:25:59,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-13 10:25:59,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:25:59,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-13 10:25:59,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2020-10-13 10:25:59,879 INFO L87 Difference]: Start difference. First operand 290 states and 352 transitions. Second operand 19 states. [2020-10-13 10:26:02,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:26:02,969 INFO L93 Difference]: Finished difference Result 323 states and 389 transitions. [2020-10-13 10:26:02,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-13 10:26:02,970 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 46 [2020-10-13 10:26:02,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:26:02,972 INFO L225 Difference]: With dead ends: 323 [2020-10-13 10:26:02,972 INFO L226 Difference]: Without dead ends: 320 [2020-10-13 10:26:02,974 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=189, Invalid=1217, Unknown=0, NotChecked=0, Total=1406 [2020-10-13 10:26:02,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-10-13 10:26:03,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 290. [2020-10-13 10:26:03,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-13 10:26:03,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 351 transitions. [2020-10-13 10:26:03,037 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 351 transitions. Word has length 46 [2020-10-13 10:26:03,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:26:03,037 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 351 transitions. [2020-10-13 10:26:03,038 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-13 10:26:03,038 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 351 transitions. [2020-10-13 10:26:03,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-13 10:26:03,044 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:26:03,045 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] [2020-10-13 10:26:03,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 10:26:03,045 INFO L427 AbstractCegarLoop]: === Iteration 7 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:26:03,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:26:03,046 INFO L82 PathProgramCache]: Analyzing trace with hash 262392368, now seen corresponding path program 1 times [2020-10-13 10:26:03,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:26:03,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1683439024] [2020-10-13 10:26:03,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:26:03,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:03,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:03,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:04,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:04,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-13 10:26:04,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:26:04,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1138 [2020-10-13 10:26:04,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:04,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 10:26:04,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 10:26:04,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 10:26:04,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:26:04,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:26:04,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:04,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:04,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:04,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:26:04,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:04,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:26:04,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:04,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:26:04,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:26:04,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 10:26:04,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:04,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 10:26:04,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:04,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:04,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:04,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 10:26:04,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:04,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-10-13 10:26:04,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:04,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 10:26:04,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:26:04,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 10:26:04,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:04,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:26:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:04,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:05,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:05,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 10:26:05,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:05,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 319 [2020-10-13 10:26:05,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:05,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 10:26:05,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:26:05,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 10:26:05,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:26:05,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 10:26:05,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:05,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:05,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:05,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 10:26:05,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:05,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-13 10:26:05,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:05,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 10:26:05,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:26:05,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 10:26:05,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:26:05,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:26:05,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:05,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:05,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:05,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:26:05,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:05,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 10:26:05,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:05,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:26:05,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:26:05,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:26:05,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:26:05,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:26:05,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1683439024] [2020-10-13 10:26:05,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:26:05,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-13 10:26:05,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959179019] [2020-10-13 10:26:05,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-13 10:26:05,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:26:05,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-13 10:26:05,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2020-10-13 10:26:05,803 INFO L87 Difference]: Start difference. First operand 290 states and 351 transitions. Second operand 19 states. [2020-10-13 10:26:08,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:26:08,895 INFO L93 Difference]: Finished difference Result 322 states and 387 transitions. [2020-10-13 10:26:08,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-13 10:26:08,895 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 49 [2020-10-13 10:26:08,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:26:08,898 INFO L225 Difference]: With dead ends: 322 [2020-10-13 10:26:08,898 INFO L226 Difference]: Without dead ends: 319 [2020-10-13 10:26:08,902 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=191, Invalid=1141, Unknown=0, NotChecked=0, Total=1332 [2020-10-13 10:26:08,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2020-10-13 10:26:08,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 290. [2020-10-13 10:26:08,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-13 10:26:08,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 350 transitions. [2020-10-13 10:26:08,932 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 350 transitions. Word has length 49 [2020-10-13 10:26:08,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:26:08,932 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 350 transitions. [2020-10-13 10:26:08,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-13 10:26:08,933 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 350 transitions. [2020-10-13 10:26:08,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-13 10:26:08,939 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:26:08,939 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] [2020-10-13 10:26:08,939 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 10:26:08,940 INFO L427 AbstractCegarLoop]: === Iteration 8 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:26:08,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:26:08,940 INFO L82 PathProgramCache]: Analyzing trace with hash -103719498, now seen corresponding path program 1 times [2020-10-13 10:26:08,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:26:08,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [563493168] [2020-10-13 10:26:08,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:26:08,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:08,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:09,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:09,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 10:26:09,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:09,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 607 [2020-10-13 10:26:09,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:09,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 10:26:09,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 10:26:09,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 10:26:09,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:09,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:26:09,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:09,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:09,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:09,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:26:09,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:09,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:26:09,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:09,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:26:09,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:26:09,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 10:26:09,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:09,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 10:26:09,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:09,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:10,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:10,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 10:26:10,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:10,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-10-13 10:26:10,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:10,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 10:26:10,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:26:10,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 10:26:10,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:10,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:26:10,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:10,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:10,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:10,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 10:26:10,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:10,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-13 10:26:10,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:10,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 10:26:10,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:26:10,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 10:26:10,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:26:10,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 10:26:10,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:10,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:10,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:10,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 10:26:10,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:10,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-13 10:26:10,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:10,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 10:26:10,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:26:10,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 10:26:10,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:10,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:26:10,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:10,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:10,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:10,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:26:10,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:10,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 10:26:10,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:10,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:26:10,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:26:10,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:26:10,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:10,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:26:10,711 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [563493168] [2020-10-13 10:26:10,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:26:10,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-13 10:26:10,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364357569] [2020-10-13 10:26:10,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-13 10:26:10,713 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:26:10,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-13 10:26:10,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2020-10-13 10:26:10,714 INFO L87 Difference]: Start difference. First operand 290 states and 350 transitions. Second operand 19 states. [2020-10-13 10:26:14,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:26:14,084 INFO L93 Difference]: Finished difference Result 325 states and 391 transitions. [2020-10-13 10:26:14,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-13 10:26:14,086 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 52 [2020-10-13 10:26:14,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:26:14,090 INFO L225 Difference]: With dead ends: 325 [2020-10-13 10:26:14,090 INFO L226 Difference]: Without dead ends: 322 [2020-10-13 10:26:14,092 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=273, Invalid=1449, Unknown=0, NotChecked=0, Total=1722 [2020-10-13 10:26:14,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-10-13 10:26:14,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 290. [2020-10-13 10:26:14,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-13 10:26:14,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 349 transitions. [2020-10-13 10:26:14,120 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 349 transitions. Word has length 52 [2020-10-13 10:26:14,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:26:14,120 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 349 transitions. [2020-10-13 10:26:14,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-13 10:26:14,121 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 349 transitions. [2020-10-13 10:26:14,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-13 10:26:14,121 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:26:14,122 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] [2020-10-13 10:26:14,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 10:26:14,122 INFO L427 AbstractCegarLoop]: === Iteration 9 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:26:14,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:26:14,123 INFO L82 PathProgramCache]: Analyzing trace with hash 354184987, now seen corresponding path program 1 times [2020-10-13 10:26:14,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:26:14,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1997794627] [2020-10-13 10:26:14,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:26:14,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:14,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:16,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:16,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-13 10:26:16,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:16,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2543 [2020-10-13 10:26:16,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:16,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 10:26:16,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 10:26:16,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 10:26:16,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:16,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:26:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:16,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:16,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:16,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:26:16,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:16,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 10:26:16,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:16,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:26:16,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:26:16,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 10:26:16,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:16,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 10:26:16,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:16,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:18,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:18,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-13 10:26:18,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:18,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1848 [2020-10-13 10:26:18,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:18,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-13 10:26:18,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:26:18,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 10:26:18,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:18,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:26:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:18,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:19,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:19,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 10:26:19,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:19,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-13 10:26:19,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:19,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 10:26:19,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:26:19,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 10:26:19,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:19,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 10:26:19,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:19,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:19,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:19,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 10:26:19,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:19,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-13 10:26:19,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:19,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 10:26:19,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:26:19,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 10:26:19,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:19,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:26:19,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:19,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:19,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:19,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:26:19,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:19,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 10:26:19,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:19,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:26:19,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:26:19,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:26:19,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:19,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 10:26:19,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:19,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:19,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:19,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 10:26:19,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:19,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-13 10:26:19,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:19,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 10:26:19,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:26:19,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 10:26:19,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:23,967 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 229 DAG size of output: 89 [2020-10-13 10:26:37,226 WARN L193 SmtUtils]: Spent 8.96 s on a formula simplification. DAG size of input: 526 DAG size of output: 119 [2020-10-13 10:26:41,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 10:26:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:41,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:42,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:42,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 10:26:42,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:42,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 599 [2020-10-13 10:26:42,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:42,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 10:26:42,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:26:42,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 10:26:42,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:27:07,853 WARN L193 SmtUtils]: Spent 17.43 s on a formula simplification. DAG size of input: 803 DAG size of output: 132 [2020-10-13 10:27:12,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:27:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:27:13,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:14,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:27:14,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:27:14,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:27:14,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1219 [2020-10-13 10:27:14,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:27:14,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 10:27:14,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:27:14,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 10:27:14,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0