/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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-data/hash_fun.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 23:24:27,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 23:24:27,076 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 23:24:27,118 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 23:24:27,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 23:24:27,126 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 23:24:27,128 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 23:24:27,131 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 23:24:27,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 23:24:27,137 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 23:24:27,138 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 23:24:27,139 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 23:24:27,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 23:24:27,143 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 23:24:27,145 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 23:24:27,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 23:24:27,148 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 23:24:27,150 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 23:24:27,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 23:24:27,157 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 23:24:27,163 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 23:24:27,164 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 23:24:27,165 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 23:24:27,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 23:24:27,178 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 23:24:27,179 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 23:24:27,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 23:24:27,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 23:24:27,181 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 23:24:27,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 23:24:27,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 23:24:27,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 23:24:27,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 23:24:27,185 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 23:24:27,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 23:24:27,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 23:24:27,186 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 23:24:27,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 23:24:27,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 23:24:27,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 23:24:27,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 23:24:27,190 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 [2020-10-14 23:24:27,231 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 23:24:27,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 23:24:27,234 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 23:24:27,234 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 23:24:27,234 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 23:24:27,235 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 23:24:27,235 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 23:24:27,235 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 23:24:27,235 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 23:24:27,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 23:24:27,236 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 23:24:27,237 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 23:24:27,237 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 23:24:27,237 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 23:24:27,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 23:24:27,238 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 23:24:27,238 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 23:24:27,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 23:24:27,238 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 23:24:27,239 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 23:24:27,239 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 23:24:27,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 23:24:27,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 23:24:27,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 23:24:27,240 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 23:24:27,240 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 23:24:27,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 23:24:27,240 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 23:24:27,240 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 23:24:27,241 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 23:24:27,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 23:24:27,559 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 23:24:27,562 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 23:24:27,564 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 23:24:27,564 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 23:24:27,565 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/hash_fun.i [2020-10-14 23:24:27,630 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02254a4cf/a0c0e519496e4127ae7551aba8e830e4/FLAGabe856696 [2020-10-14 23:24:28,090 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 23:24:28,091 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/heap-data/hash_fun.i [2020-10-14 23:24:28,107 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02254a4cf/a0c0e519496e4127ae7551aba8e830e4/FLAGabe856696 [2020-10-14 23:24:28,450 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02254a4cf/a0c0e519496e4127ae7551aba8e830e4 [2020-10-14 23:24:28,458 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 23:24:28,460 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 23:24:28,461 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 23:24:28,461 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 23:24:28,465 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 23:24:28,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:24:28" (1/1) ... [2020-10-14 23:24:28,469 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c454e4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:24:28, skipping insertion in model container [2020-10-14 23:24:28,469 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:24:28" (1/1) ... [2020-10-14 23:24:28,477 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 23:24:28,513 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 23:24:29,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:24:29,026 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 23:24:29,071 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:24:29,139 INFO L208 MainTranslator]: Completed translation [2020-10-14 23:24:29,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:24:29 WrapperNode [2020-10-14 23:24:29,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 23:24:29,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 23:24:29,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 23:24:29,141 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 23:24:29,154 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:24:29" (1/1) ... [2020-10-14 23:24:29,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:24:29" (1/1) ... [2020-10-14 23:24:29,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:24:29" (1/1) ... [2020-10-14 23:24:29,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:24:29" (1/1) ... [2020-10-14 23:24:29,187 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:24:29" (1/1) ... [2020-10-14 23:24:29,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:24:29" (1/1) ... [2020-10-14 23:24:29,207 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:24:29" (1/1) ... [2020-10-14 23:24:29,215 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 23:24:29,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 23:24:29,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 23:24:29,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 23:24:29,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:24:29" (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 [2020-10-14 23:24:29,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 23:24:29,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 23:24:29,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-14 23:24:29,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-14 23:24:29,280 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_fun [2020-10-14 23:24:29,280 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_list [2020-10-14 23:24:29,280 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 23:24:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 23:24:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 23:24:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-14 23:24:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-14 23:24:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-14 23:24:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-14 23:24:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-14 23:24:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-14 23:24:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-14 23:24:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-14 23:24:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-14 23:24:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-14 23:24:29,283 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-14 23:24:29,283 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-14 23:24:29,283 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-14 23:24:29,283 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-14 23:24:29,283 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-14 23:24:29,283 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-14 23:24:29,283 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-14 23:24:29,284 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-14 23:24:29,284 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-14 23:24:29,284 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-14 23:24:29,284 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-14 23:24:29,284 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-14 23:24:29,284 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-14 23:24:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-14 23:24:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-14 23:24:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-14 23:24:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-14 23:24:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-14 23:24:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-14 23:24:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-14 23:24:29,286 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-14 23:24:29,286 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-14 23:24:29,286 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-14 23:24:29,286 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-14 23:24:29,286 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-14 23:24:29,286 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-14 23:24:29,286 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-14 23:24:29,287 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-14 23:24:29,287 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-14 23:24:29,287 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-14 23:24:29,287 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-14 23:24:29,287 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-14 23:24:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-14 23:24:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-14 23:24:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-14 23:24:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-14 23:24:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-14 23:24:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-14 23:24:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-14 23:24:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-14 23:24:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-14 23:24:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-14 23:24:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 23:24:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-14 23:24:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-14 23:24:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 23:24:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-14 23:24:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-14 23:24:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-14 23:24:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-14 23:24:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-14 23:24:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 23:24:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-14 23:24:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-14 23:24:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-14 23:24:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 23:24:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-14 23:24:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-14 23:24:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-14 23:24:29,292 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-14 23:24:29,292 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-14 23:24:29,292 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-14 23:24:29,292 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-14 23:24:29,292 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-14 23:24:29,292 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-14 23:24:29,292 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-14 23:24:29,293 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-14 23:24:29,293 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-14 23:24:29,293 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-14 23:24:29,293 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-14 23:24:29,293 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-14 23:24:29,293 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-14 23:24:29,293 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-14 23:24:29,294 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-14 23:24:29,294 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-14 23:24:29,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-14 23:24:29,294 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-14 23:24:29,294 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-14 23:24:29,294 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-14 23:24:29,294 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-14 23:24:29,295 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-14 23:24:29,295 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-14 23:24:29,295 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-14 23:24:29,295 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-14 23:24:29,295 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-14 23:24:29,295 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-14 23:24:29,295 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-14 23:24:29,296 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-14 23:24:29,296 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-14 23:24:29,296 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-14 23:24:29,296 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-14 23:24:29,296 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-14 23:24:29,296 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-14 23:24:29,296 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-14 23:24:29,297 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-14 23:24:29,297 INFO L130 BoogieDeclarations]: Found specification of procedure hash_fun [2020-10-14 23:24:29,297 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_list [2020-10-14 23:24:29,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 23:24:29,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 23:24:29,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 23:24:29,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 23:24:29,298 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 23:24:29,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 23:24:29,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-14 23:24:29,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 23:24:29,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 23:24:29,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 23:24:29,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 23:24:29,796 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 23:24:29,796 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-14 23:24:29,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:24:29 BoogieIcfgContainer [2020-10-14 23:24:29,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 23:24:29,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 23:24:29,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 23:24:29,805 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 23:24:29,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:24:28" (1/3) ... [2020-10-14 23:24:29,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b33f28d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:24:29, skipping insertion in model container [2020-10-14 23:24:29,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:24:29" (2/3) ... [2020-10-14 23:24:29,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b33f28d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:24:29, skipping insertion in model container [2020-10-14 23:24:29,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:24:29" (3/3) ... [2020-10-14 23:24:29,809 INFO L109 eAbstractionObserver]: Analyzing ICFG hash_fun.i [2020-10-14 23:24:29,818 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 23:24:29,826 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 23:24:29,838 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 23:24:29,857 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 23:24:29,857 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 23:24:29,858 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 23:24:29,858 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 23:24:29,859 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 23:24:29,859 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 23:24:29,859 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 23:24:29,859 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 23:24:29,877 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-10-14 23:24:29,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-14 23:24:29,883 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:24:29,884 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:24:29,885 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:24:29,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:24:29,891 INFO L82 PathProgramCache]: Analyzing trace with hash 58523941, now seen corresponding path program 1 times [2020-10-14 23:24:29,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:24:29,901 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [914675569] [2020-10-14 23:24:29,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:24:30,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:30,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:30,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:30,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:30,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 23:24:30,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:24:30,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-10-14 23:24:30,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:30,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:30,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 23:24:30,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:24:30,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 23:24:30,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 23:24:30,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:24:30,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:30,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:30,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:30,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:30,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:30,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 23:24:30,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:30,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:30,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:24:30,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:30,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:24:30,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:30,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:24:30,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [914675569] [2020-10-14 23:24:30,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:24:30,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 23:24:30,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021744785] [2020-10-14 23:24:30,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 23:24:30,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:24:30,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 23:24:30,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 23:24:30,402 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-10-14 23:24:30,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:24:30,573 INFO L93 Difference]: Finished difference Result 53 states and 71 transitions. [2020-10-14 23:24:30,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 23:24:30,575 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-14 23:24:30,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:24:30,587 INFO L225 Difference]: With dead ends: 53 [2020-10-14 23:24:30,587 INFO L226 Difference]: Without dead ends: 33 [2020-10-14 23:24:30,590 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 23:24:30,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-14 23:24:30,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2020-10-14 23:24:30,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-14 23:24:30,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2020-10-14 23:24:30,638 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 12 [2020-10-14 23:24:30,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:24:30,638 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2020-10-14 23:24:30,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 23:24:30,638 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2020-10-14 23:24:30,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-14 23:24:30,640 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:24:30,641 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:24:30,641 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 23:24:30,641 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:24:30,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:24:30,642 INFO L82 PathProgramCache]: Analyzing trace with hash 479588754, now seen corresponding path program 1 times [2020-10-14 23:24:30,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:24:30,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [37012290] [2020-10-14 23:24:30,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:24:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:30,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:30,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:31,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:31,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 23:24:31,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:24:31,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 398 [2020-10-14 23:24:31,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:31,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:31,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:24:31,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:24:31,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 23:24:31,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:31,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:24:31,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:31,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:31,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:31,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:31,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:31,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:24:31,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:31,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:31,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:24:31,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:31,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:24:31,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:31,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 23:24:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:31,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:31,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:31,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:31,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:31,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:24:31,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:31,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:31,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:24:31,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:31,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:24:31,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:31,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 23:24:31,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:31,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:31,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:31,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:31,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:31,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 23:24:31,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:31,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:31,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:24:31,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:31,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:24:31,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:31,285 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:24:31,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [37012290] [2020-10-14 23:24:31,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:24:31,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 23:24:31,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367303608] [2020-10-14 23:24:31,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 23:24:31,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:24:31,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 23:24:31,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 23:24:31,290 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand 9 states. [2020-10-14 23:24:31,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:24:31,632 INFO L93 Difference]: Finished difference Result 66 states and 81 transitions. [2020-10-14 23:24:31,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 23:24:31,632 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2020-10-14 23:24:31,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:24:31,634 INFO L225 Difference]: With dead ends: 66 [2020-10-14 23:24:31,634 INFO L226 Difference]: Without dead ends: 59 [2020-10-14 23:24:31,636 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2020-10-14 23:24:31,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-14 23:24:31,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 35. [2020-10-14 23:24:31,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-14 23:24:31,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2020-10-14 23:24:31,665 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 26 [2020-10-14 23:24:31,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:24:31,665 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2020-10-14 23:24:31,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 23:24:31,665 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2020-10-14 23:24:31,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-14 23:24:31,666 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:24:31,666 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:24:31,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 23:24:31,666 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:24:31,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:24:31,667 INFO L82 PathProgramCache]: Analyzing trace with hash 479586832, now seen corresponding path program 1 times [2020-10-14 23:24:31,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:24:31,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1896235951] [2020-10-14 23:24:31,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:24:31,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:31,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:31,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:31,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 23:24:31,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:31,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-14 23:24:31,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:31,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:31,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:24:31,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:24:31,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 23:24:31,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:31,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:24:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:31,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:31,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:31,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:31,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:31,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:24:31,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:31,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:31,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:24:31,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:31,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:24:31,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:31,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 23:24:31,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:31,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:31,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:31,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:31,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:31,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 23:24:31,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:31,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:31,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:24:31,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:31,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:24:31,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:32,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 23:24:32,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:32,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:32,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:32,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:32,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:32,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 23:24:32,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:32,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:32,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:24:32,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:32,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:24:32,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:32,134 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:24:32,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1896235951] [2020-10-14 23:24:32,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:24:32,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 23:24:32,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005921872] [2020-10-14 23:24:32,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 23:24:32,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:24:32,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 23:24:32,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 23:24:32,139 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand 9 states. [2020-10-14 23:24:32,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:24:32,498 INFO L93 Difference]: Finished difference Result 57 states and 70 transitions. [2020-10-14 23:24:32,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 23:24:32,498 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2020-10-14 23:24:32,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:24:32,500 INFO L225 Difference]: With dead ends: 57 [2020-10-14 23:24:32,500 INFO L226 Difference]: Without dead ends: 55 [2020-10-14 23:24:32,501 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2020-10-14 23:24:32,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-14 23:24:32,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 36. [2020-10-14 23:24:32,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-14 23:24:32,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2020-10-14 23:24:32,511 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 26 [2020-10-14 23:24:32,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:24:32,511 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2020-10-14 23:24:32,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 23:24:32,512 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2020-10-14 23:24:32,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-14 23:24:32,513 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:24:32,513 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:24:32,513 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 23:24:32,514 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:24:32,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:24:32,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1071199269, now seen corresponding path program 1 times [2020-10-14 23:24:32,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:24:32,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1580090635] [2020-10-14 23:24:32,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:24:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:32,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:32,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:33,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:33,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 23:24:33,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:24:33,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 529 [2020-10-14 23:24:33,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:33,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:33,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 23:24:33,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:24:33,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 23:24:33,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:33,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:24:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:33,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:33,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:33,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:33,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:33,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:24:33,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:33,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:33,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:24:33,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:33,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:24:33,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:33,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 23:24:33,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:33,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:33,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:33,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:33,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:33,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 23:24:33,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:33,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:33,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:24:33,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:33,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:24:33,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:33,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 23:24:33,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:33,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:33,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:33,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:33,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:33,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 23:24:33,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:33,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:33,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:24:33,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:24:33,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:24:33,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:33,357 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:24:33,357 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1580090635] [2020-10-14 23:24:33,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:24:33,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 23:24:33,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711890933] [2020-10-14 23:24:33,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 23:24:33,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:24:33,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 23:24:33,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 23:24:33,378 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 9 states. [2020-10-14 23:24:33,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:24:33,713 INFO L93 Difference]: Finished difference Result 58 states and 72 transitions. [2020-10-14 23:24:33,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 23:24:33,714 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2020-10-14 23:24:33,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:24:33,716 INFO L225 Difference]: With dead ends: 58 [2020-10-14 23:24:33,716 INFO L226 Difference]: Without dead ends: 44 [2020-10-14 23:24:33,717 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-14 23:24:33,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-14 23:24:33,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2020-10-14 23:24:33,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-14 23:24:33,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2020-10-14 23:24:33,727 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 54 transitions. Word has length 31 [2020-10-14 23:24:33,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:24:33,727 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 54 transitions. [2020-10-14 23:24:33,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 23:24:33,728 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 54 transitions. [2020-10-14 23:24:33,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-14 23:24:33,729 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:24:33,730 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-10-14 23:24:33,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 23:24:33,730 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:24:33,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:24:33,730 INFO L82 PathProgramCache]: Analyzing trace with hash 582023166, now seen corresponding path program 2 times [2020-10-14 23:24:33,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:24:33,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1056730921] [2020-10-14 23:24:33,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:24:33,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:33,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:34,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:34,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:34,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 23:24:34,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:24:34,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 905 [2020-10-14 23:24:34,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:34,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:34,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 23:24:34,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:24:34,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 23:24:34,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:34,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:24:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:34,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:34,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:34,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:34,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:34,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:24:34,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:34,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:34,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:24:34,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:34,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:24:34,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:34,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 23:24:34,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:34,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:34,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:34,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:34,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:34,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:24:34,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:34,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:34,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:24:34,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:34,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:24:34,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:34,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 23:24:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:34,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:34,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:34,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:34,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:34,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 23:24:34,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:34,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:34,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:24:34,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:34,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:24:34,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:34,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:24:34,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:34,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:34,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:34,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:34,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:34,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 23:24:34,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:34,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:34,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:24:34,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:34,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:24:34,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:34,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 23:24:34,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:34,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:34,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:34,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:34,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:34,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 23:24:34,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:34,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:34,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:24:34,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:24:34,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:24:34,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:35,130 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 23:24:35,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1056730921] [2020-10-14 23:24:35,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:24:35,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 23:24:35,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378061488] [2020-10-14 23:24:35,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 23:24:35,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:24:35,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 23:24:35,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-14 23:24:35,133 INFO L87 Difference]: Start difference. First operand 43 states and 54 transitions. Second operand 12 states. [2020-10-14 23:24:35,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:24:35,953 INFO L93 Difference]: Finished difference Result 88 states and 109 transitions. [2020-10-14 23:24:35,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 23:24:35,953 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 44 [2020-10-14 23:24:35,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:24:35,955 INFO L225 Difference]: With dead ends: 88 [2020-10-14 23:24:35,955 INFO L226 Difference]: Without dead ends: 81 [2020-10-14 23:24:35,956 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=110, Invalid=396, Unknown=0, NotChecked=0, Total=506 [2020-10-14 23:24:35,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-10-14 23:24:35,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 47. [2020-10-14 23:24:35,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-14 23:24:35,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 58 transitions. [2020-10-14 23:24:35,965 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 58 transitions. Word has length 44 [2020-10-14 23:24:35,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:24:35,966 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 58 transitions. [2020-10-14 23:24:35,966 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 23:24:35,966 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 58 transitions. [2020-10-14 23:24:35,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-14 23:24:35,967 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:24:35,967 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-10-14 23:24:35,967 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 23:24:35,968 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:24:35,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:24:35,968 INFO L82 PathProgramCache]: Analyzing trace with hash 582021244, now seen corresponding path program 1 times [2020-10-14 23:24:35,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:24:35,968 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [443911769] [2020-10-14 23:24:35,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:24:35,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:36,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:36,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:36,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 23:24:36,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:36,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 515 [2020-10-14 23:24:36,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:36,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:36,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 23:24:36,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:24:36,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 23:24:36,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:36,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:24:36,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:36,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:36,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:36,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:36,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:36,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:24:36,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:36,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:36,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:24:36,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:36,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:24:36,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:36,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 23:24:36,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:36,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:36,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:36,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:36,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:36,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:24:36,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:36,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:36,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:24:36,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:36,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:24:36,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:36,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 23:24:36,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:36,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:36,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:36,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:36,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:36,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 23:24:36,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:36,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:36,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:24:36,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:36,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:24:36,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:36,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:24:36,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:36,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:36,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:36,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:36,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:36,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 23:24:36,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:36,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:36,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:24:36,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:36,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:24:36,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:36,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 23:24:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:36,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:36,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:36,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:36,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:36,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 23:24:36,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:36,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:36,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:24:36,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:24:36,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:24:36,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:36,933 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 23:24:36,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [443911769] [2020-10-14 23:24:36,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:24:36,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 23:24:36,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362758518] [2020-10-14 23:24:36,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 23:24:36,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:24:36,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 23:24:36,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-14 23:24:36,936 INFO L87 Difference]: Start difference. First operand 47 states and 58 transitions. Second operand 12 states. [2020-10-14 23:24:37,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:24:37,639 INFO L93 Difference]: Finished difference Result 79 states and 98 transitions. [2020-10-14 23:24:37,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 23:24:37,640 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 44 [2020-10-14 23:24:37,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:24:37,641 INFO L225 Difference]: With dead ends: 79 [2020-10-14 23:24:37,641 INFO L226 Difference]: Without dead ends: 77 [2020-10-14 23:24:37,642 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=110, Invalid=396, Unknown=0, NotChecked=0, Total=506 [2020-10-14 23:24:37,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-14 23:24:37,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 48. [2020-10-14 23:24:37,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-14 23:24:37,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 59 transitions. [2020-10-14 23:24:37,651 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 59 transitions. Word has length 44 [2020-10-14 23:24:37,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:24:37,651 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 59 transitions. [2020-10-14 23:24:37,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 23:24:37,652 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 59 transitions. [2020-10-14 23:24:37,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-14 23:24:37,653 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:24:37,653 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-10-14 23:24:37,653 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 23:24:37,653 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:24:37,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:24:37,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1212868847, now seen corresponding path program 3 times [2020-10-14 23:24:37,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:24:37,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1626292986] [2020-10-14 23:24:37,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:24:37,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:37,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:38,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:38,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:39,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:40,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:40,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-14 23:24:40,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 23:24:40,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2455 [2020-10-14 23:24:40,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:40,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:40,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 23:24:40,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:24:40,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-14 23:24:40,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:40,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:24:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:40,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:40,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:40,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:40,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:40,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:24:40,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:40,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:40,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:24:40,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:40,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:24:40,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:24:40,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 23:24:40,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:40,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:40,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:40,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:40,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:40,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:24:40,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:40,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:40,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:24:40,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:40,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:24:40,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:40,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 23:24:40,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:40,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:40,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:40,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:40,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:40,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 23:24:40,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:40,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:40,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:24:40,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:24:40,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:24:40,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:40,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:24:40,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:40,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:40,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:40,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:40,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:40,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 23:24:40,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:40,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:40,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:24:40,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:40,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:24:40,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:40,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 23:24:40,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:40,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:40,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:40,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:40,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:40,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 23:24:40,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:40,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:40,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:24:40,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:24:40,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:24:40,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:40,649 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 23:24:40,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1626292986] [2020-10-14 23:24:40,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:24:40,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 23:24:40,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501599066] [2020-10-14 23:24:40,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 23:24:40,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:24:40,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 23:24:40,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-10-14 23:24:40,652 INFO L87 Difference]: Start difference. First operand 48 states and 59 transitions. Second operand 12 states. [2020-10-14 23:24:41,044 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 73 [2020-10-14 23:24:41,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:24:41,412 INFO L93 Difference]: Finished difference Result 75 states and 93 transitions. [2020-10-14 23:24:41,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 23:24:41,413 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 49 [2020-10-14 23:24:41,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:24:41,414 INFO L225 Difference]: With dead ends: 75 [2020-10-14 23:24:41,414 INFO L226 Difference]: Without dead ends: 56 [2020-10-14 23:24:41,415 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-14 23:24:41,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-14 23:24:41,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 55. [2020-10-14 23:24:41,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-14 23:24:41,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 70 transitions. [2020-10-14 23:24:41,424 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 70 transitions. Word has length 49 [2020-10-14 23:24:41,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:24:41,425 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 70 transitions. [2020-10-14 23:24:41,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 23:24:41,425 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 70 transitions. [2020-10-14 23:24:41,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-14 23:24:41,426 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:24:41,426 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:24:41,426 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 23:24:41,427 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:24:41,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:24:41,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1131246162, now seen corresponding path program 4 times [2020-10-14 23:24:41,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:24:41,428 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [635776995] [2020-10-14 23:24:41,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:24:41,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:41,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:42,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:42,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:42,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 23:24:42,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:24:42,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1527 [2020-10-14 23:24:42,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:42,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:42,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 23:24:42,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:24:42,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 23:24:42,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:24:43,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:24:43,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:43,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:43,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:43,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:43,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:43,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:24:43,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:43,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:43,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:24:43,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:43,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:24:43,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:43,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 23:24:43,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:43,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:43,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:43,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:43,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:43,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:24:43,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:43,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:43,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:24:43,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:43,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:24:43,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:24:43,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 23:24:43,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:43,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:43,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:43,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:43,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:43,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 23:24:43,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:43,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:43,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:24:43,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:43,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:24:43,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:43,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:24:43,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:43,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:43,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:43,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:43,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:43,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:24:43,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:43,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:43,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:24:43,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:43,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:24:43,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:43,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 23:24:43,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:43,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:43,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:43,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:43,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:43,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 23:24:43,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:43,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:43,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:24:43,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:24:43,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:24:43,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:43,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 23:24:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:43,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:43,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:43,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:43,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:43,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 23:24:43,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:43,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:43,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:24:43,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:43,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:24:43,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:24:43,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 23:24:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:43,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:43,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:43,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:43,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:43,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 23:24:43,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:43,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:43,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:24:43,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:24:43,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:24:43,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:24:44,055 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-14 23:24:44,111 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 12 proven. 34 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 23:24:44,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [635776995] [2020-10-14 23:24:44,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:24:44,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 23:24:44,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186675808] [2020-10-14 23:24:44,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 23:24:44,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:24:44,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 23:24:44,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2020-10-14 23:24:44,116 INFO L87 Difference]: Start difference. First operand 55 states and 70 transitions. Second operand 15 states. [2020-10-14 23:24:45,225 WARN L193 SmtUtils]: Spent 811.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 117 [2020-10-14 23:24:46,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:24:46,693 INFO L93 Difference]: Finished difference Result 110 states and 137 transitions. [2020-10-14 23:24:46,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 23:24:46,695 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 62 [2020-10-14 23:24:46,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:24:46,697 INFO L225 Difference]: With dead ends: 110 [2020-10-14 23:24:46,697 INFO L226 Difference]: Without dead ends: 103 [2020-10-14 23:24:46,698 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=209, Invalid=783, Unknown=0, NotChecked=0, Total=992 [2020-10-14 23:24:46,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-10-14 23:24:46,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 59. [2020-10-14 23:24:46,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-14 23:24:46,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 74 transitions. [2020-10-14 23:24:46,709 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 74 transitions. Word has length 62 [2020-10-14 23:24:46,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:24:46,709 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 74 transitions. [2020-10-14 23:24:46,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 23:24:46,709 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 74 transitions. [2020-10-14 23:24:46,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-14 23:24:46,711 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:24:46,711 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:24:46,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 23:24:46,711 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:24:46,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:24:46,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1131244240, now seen corresponding path program 2 times [2020-10-14 23:24:46,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:24:46,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [54206982] [2020-10-14 23:24:46,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:24:46,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:46,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:47,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:47,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 23:24:47,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:47,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1180 [2020-10-14 23:24:47,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:47,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:47,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 23:24:47,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:24:47,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 23:24:47,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:24:48,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:24:48,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:48,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:48,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:48,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:48,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:48,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:24:48,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:48,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:48,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:24:48,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:48,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:24:48,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:24:48,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 23:24:48,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:48,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:48,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:48,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:48,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:48,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:24:48,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:48,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:48,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:24:48,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:48,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:24:48,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:48,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 23:24:48,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:48,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:48,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:48,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:48,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:48,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 23:24:48,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:48,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:48,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:24:48,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:48,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:24:48,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:24:48,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:24:48,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:48,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:48,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:48,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:48,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:48,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:24:48,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:48,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:48,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:24:48,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:48,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:24:48,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:24:48,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 23:24:48,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:48,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:48,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:48,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:48,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:48,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 23:24:48,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:48,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:48,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:24:48,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:24:48,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:24:48,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:24:48,506 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2020-10-14 23:24:48,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 23:24:48,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:48,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:48,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:48,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:48,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:48,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 23:24:48,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:48,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:48,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:24:48,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:48,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:24:48,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:48,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 23:24:48,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:48,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:48,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:48,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:48,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:48,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 23:24:48,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:48,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:48,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:24:48,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:24:48,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:24:48,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:24:48,958 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-14 23:24:49,000 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 12 proven. 34 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 23:24:49,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [54206982] [2020-10-14 23:24:49,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:24:49,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 23:24:49,002 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346415889] [2020-10-14 23:24:49,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 23:24:49,002 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:24:49,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 23:24:49,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2020-10-14 23:24:49,003 INFO L87 Difference]: Start difference. First operand 59 states and 74 transitions. Second operand 15 states. [2020-10-14 23:24:49,862 WARN L193 SmtUtils]: Spent 605.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 111 [2020-10-14 23:24:51,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:24:51,375 INFO L93 Difference]: Finished difference Result 101 states and 126 transitions. [2020-10-14 23:24:51,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 23:24:51,376 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 62 [2020-10-14 23:24:51,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:24:51,377 INFO L225 Difference]: With dead ends: 101 [2020-10-14 23:24:51,377 INFO L226 Difference]: Without dead ends: 99 [2020-10-14 23:24:51,378 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=209, Invalid=783, Unknown=0, NotChecked=0, Total=992 [2020-10-14 23:24:51,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-14 23:24:51,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 60. [2020-10-14 23:24:51,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-14 23:24:51,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 75 transitions. [2020-10-14 23:24:51,391 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 75 transitions. Word has length 62 [2020-10-14 23:24:51,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:24:51,392 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 75 transitions. [2020-10-14 23:24:51,392 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 23:24:51,392 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 75 transitions. [2020-10-14 23:24:51,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 23:24:51,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:24:51,393 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:24:51,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 23:24:51,393 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:24:51,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:24:51,394 INFO L82 PathProgramCache]: Analyzing trace with hash -73284837, now seen corresponding path program 5 times [2020-10-14 23:24:51,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:24:51,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [41771797] [2020-10-14 23:24:51,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:24:51,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:51,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:52,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:53,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:53,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:54,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:55,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:55,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:56,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:56,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 23:24:56,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 23:24:56,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 23:24:56,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:56,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:56,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 23:24:56,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:24:56,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 23:24:56,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:24:56,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:24:56,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:56,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:56,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:56,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:56,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:56,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:24:56,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:56,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:56,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:24:56,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:56,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:24:56,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:24:56,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 23:24:56,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:56,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:56,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:56,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:56,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:56,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:24:56,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:56,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:56,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:24:56,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:56,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:24:56,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:24:56,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 23:24:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:56,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:56,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:56,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:56,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:56,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 23:24:56,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:56,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:56,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:24:56,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:24:56,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:24:56,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:56,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:24:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:56,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:56,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:56,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:56,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:56,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:24:56,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:56,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:56,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:24:56,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:56,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:24:56,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:24:56,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 23:24:56,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:56,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:56,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:56,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:56,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:56,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 23:24:56,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:56,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:56,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:24:56,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:24:56,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:24:56,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:24:57,123 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2020-10-14 23:24:57,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 23:24:57,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:57,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:57,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:57,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:57,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:57,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:24:57,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:57,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:57,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:24:57,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:24:57,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:24:57,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:24:57,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 23:24:57,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:57,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:24:57,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:24:57,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:24:57,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:24:57,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 23:24:57,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:24:57,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:24:57,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:24:57,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:24:57,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:24:57,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:24:57,393 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 6 proven. 54 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 23:24:57,393 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [41771797] [2020-10-14 23:24:57,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:24:57,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 23:24:57,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033564712] [2020-10-14 23:24:57,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 23:24:57,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:24:57,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 23:24:57,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2020-10-14 23:24:57,395 INFO L87 Difference]: Start difference. First operand 60 states and 75 transitions. Second operand 15 states. [2020-10-14 23:24:57,857 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2020-10-14 23:24:58,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:24:58,605 INFO L93 Difference]: Finished difference Result 92 states and 114 transitions. [2020-10-14 23:24:58,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 23:24:58,606 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 67 [2020-10-14 23:24:58,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:24:58,607 INFO L225 Difference]: With dead ends: 92 [2020-10-14 23:24:58,607 INFO L226 Difference]: Without dead ends: 68 [2020-10-14 23:24:58,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2020-10-14 23:24:58,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-14 23:24:58,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 67. [2020-10-14 23:24:58,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-10-14 23:24:58,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 86 transitions. [2020-10-14 23:24:58,618 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 86 transitions. Word has length 67 [2020-10-14 23:24:58,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:24:58,618 INFO L479 AbstractCegarLoop]: Abstraction has 67 states and 86 transitions. [2020-10-14 23:24:58,619 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 23:24:58,619 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 86 transitions. [2020-10-14 23:24:58,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-14 23:24:58,620 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:24:58,620 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:24:58,620 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 23:24:58,620 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:24:58,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:24:58,621 INFO L82 PathProgramCache]: Analyzing trace with hash -378021442, now seen corresponding path program 6 times [2020-10-14 23:24:58,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:24:58,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [903437669] [2020-10-14 23:24:58,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:24:58,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:24:58,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:00,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:01,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:01,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 23:25:01,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:25:01,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2999 [2020-10-14 23:25:01,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:01,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:01,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-14 23:25:01,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:25:01,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-14 23:25:01,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:02,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:25:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:02,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:02,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:02,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:02,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:02,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:25:02,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:02,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:02,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:25:02,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:25:02,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:25:02,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:02,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 23:25:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:02,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:02,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:02,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:02,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:02,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:25:02,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:02,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:02,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:25:02,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:25:02,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:25:02,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:02,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 23:25:02,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:02,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:02,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:02,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:02,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:02,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 23:25:02,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:02,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:02,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:25:02,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:25:02,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:25:02,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:25:02,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:25:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:02,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:02,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:02,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:02,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:02,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:25:02,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:02,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:02,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:25:02,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:25:02,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:25:02,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:25:02,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 23:25:02,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:02,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:02,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:02,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:02,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:02,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 23:25:02,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:02,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:02,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:25:02,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:25:02,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:25:02,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:02,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 23:25:02,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:02,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:02,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:02,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:02,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:02,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:25:02,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:02,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:02,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:25:02,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:25:02,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:25:02,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:02,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 23:25:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:02,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:02,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:02,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:02,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:02,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 23:25:02,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:02,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:02,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:25:02,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:25:02,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:25:02,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:02,881 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-14 23:25:02,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 23:25:02,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:02,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:02,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:02,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:02,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:02,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:25:02,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:02,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:02,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:25:02,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:25:02,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:25:02,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:02,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 23:25:02,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:02,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:02,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:02,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:02,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:02,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 23:25:02,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:02,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:02,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:25:02,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:25:02,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:25:02,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:03,920 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 111 [2020-10-14 23:25:04,001 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 21 proven. 68 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-14 23:25:04,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [903437669] [2020-10-14 23:25:04,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:25:04,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-14 23:25:04,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773840043] [2020-10-14 23:25:04,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-14 23:25:04,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:25:04,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-14 23:25:04,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2020-10-14 23:25:04,004 INFO L87 Difference]: Start difference. First operand 67 states and 86 transitions. Second operand 18 states. [2020-10-14 23:25:05,293 WARN L193 SmtUtils]: Spent 970.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 134 [2020-10-14 23:25:06,922 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2020-10-14 23:25:07,373 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2020-10-14 23:25:08,191 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2020-10-14 23:25:08,542 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2020-10-14 23:25:09,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:25:09,335 INFO L93 Difference]: Finished difference Result 132 states and 165 transitions. [2020-10-14 23:25:09,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-14 23:25:09,336 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 80 [2020-10-14 23:25:09,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:25:09,338 INFO L225 Difference]: With dead ends: 132 [2020-10-14 23:25:09,338 INFO L226 Difference]: Without dead ends: 125 [2020-10-14 23:25:09,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=325, Invalid=1315, Unknown=0, NotChecked=0, Total=1640 [2020-10-14 23:25:09,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-14 23:25:09,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 71. [2020-10-14 23:25:09,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-14 23:25:09,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 90 transitions. [2020-10-14 23:25:09,352 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 90 transitions. Word has length 80 [2020-10-14 23:25:09,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:25:09,353 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 90 transitions. [2020-10-14 23:25:09,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-14 23:25:09,353 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 90 transitions. [2020-10-14 23:25:09,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-14 23:25:09,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:25:09,354 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:25:09,355 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 23:25:09,355 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:25:09,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:25:09,355 INFO L82 PathProgramCache]: Analyzing trace with hash -378023364, now seen corresponding path program 3 times [2020-10-14 23:25:09,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:25:09,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1418568392] [2020-10-14 23:25:09,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:25:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:09,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:10,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:10,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 23:25:10,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:10,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1482 [2020-10-14 23:25:10,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:10,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:10,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-14 23:25:10,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:25:10,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 23:25:10,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:11,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:25:11,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:11,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:11,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:11,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:11,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:11,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:25:11,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:11,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:11,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:25:11,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:25:11,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:25:11,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:11,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 23:25:11,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:11,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:11,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:11,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:11,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:11,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:25:11,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:11,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:11,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:25:11,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:25:11,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:25:11,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:11,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 23:25:11,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:11,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:11,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:11,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:11,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:11,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 23:25:11,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:11,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:11,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:25:11,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:25:11,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:25:11,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:11,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:25:11,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:11,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:11,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:11,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:11,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:11,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:25:11,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:11,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:11,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:25:11,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:25:11,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:25:11,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:25:11,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 23:25:11,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:11,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:11,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:11,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:11,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:11,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 23:25:11,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:11,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:11,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:25:11,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:25:11,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:25:11,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:25:11,627 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-10-14 23:25:11,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 23:25:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:11,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:11,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:11,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:11,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:11,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 23:25:11,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:11,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:11,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:25:11,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:25:11,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:25:11,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:25:11,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 23:25:11,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:11,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:11,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:11,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:11,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:11,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 23:25:11,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:11,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:11,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:25:11,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:25:11,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:25:11,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:25:12,644 WARN L193 SmtUtils]: Spent 663.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 99 [2020-10-14 23:25:12,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 23:25:12,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:12,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:12,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:12,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:12,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:12,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 23:25:12,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:12,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:12,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:25:12,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:25:12,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:25:12,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:12,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 23:25:12,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:12,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:12,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:12,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:12,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:12,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 23:25:12,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:12,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:12,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:25:12,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:25:12,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:25:12,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:13,957 WARN L193 SmtUtils]: Spent 958.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 130 [2020-10-14 23:25:14,022 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 20 proven. 69 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-14 23:25:14,022 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1418568392] [2020-10-14 23:25:14,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:25:14,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-14 23:25:14,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599112706] [2020-10-14 23:25:14,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-14 23:25:14,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:25:14,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-14 23:25:14,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2020-10-14 23:25:14,024 INFO L87 Difference]: Start difference. First operand 71 states and 90 transitions. Second operand 18 states. [2020-10-14 23:25:15,716 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 162 DAG size of output: 160 [2020-10-14 23:25:17,026 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-10-14 23:25:17,360 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2020-10-14 23:25:18,104 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2020-10-14 23:25:18,363 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2020-10-14 23:25:18,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:25:18,993 INFO L93 Difference]: Finished difference Result 123 states and 154 transitions. [2020-10-14 23:25:18,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-14 23:25:18,995 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 80 [2020-10-14 23:25:18,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:25:18,996 INFO L225 Difference]: With dead ends: 123 [2020-10-14 23:25:18,996 INFO L226 Difference]: Without dead ends: 121 [2020-10-14 23:25:18,997 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=342, Invalid=1298, Unknown=0, NotChecked=0, Total=1640 [2020-10-14 23:25:18,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-10-14 23:25:19,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 72. [2020-10-14 23:25:19,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-14 23:25:19,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 91 transitions. [2020-10-14 23:25:19,009 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 91 transitions. Word has length 80 [2020-10-14 23:25:19,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:25:19,010 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 91 transitions. [2020-10-14 23:25:19,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-14 23:25:19,010 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 91 transitions. [2020-10-14 23:25:19,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-14 23:25:19,011 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:25:19,012 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:25:19,012 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 23:25:19,012 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:25:19,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:25:19,012 INFO L82 PathProgramCache]: Analyzing trace with hash 122363695, now seen corresponding path program 7 times [2020-10-14 23:25:19,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:25:19,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [530507477] [2020-10-14 23:25:19,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:25:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:19,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:20,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:21,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:23,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:24,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:24,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-14 23:25:24,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 23:25:24,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 23:25:24,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:24,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:24,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 23:25:24,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:25:24,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 23:25:24,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:24,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:25:24,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:24,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:24,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:24,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:24,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:24,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:25:24,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:24,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:24,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:25:24,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:25:24,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:25:24,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:25:24,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 23:25:24,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:24,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:24,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:24,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:24,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:24,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:25:24,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:24,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:24,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:25:24,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:25:24,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:25:24,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:25:24,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 23:25:24,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:24,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:24,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:24,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:24,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:24,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 23:25:24,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:24,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:24,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:25:24,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:25:24,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:25:24,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:25:24,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:25:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:24,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:24,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:24,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:24,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:24,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:25:24,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:24,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:24,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:25:24,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:25:24,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:25:24,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:24,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 23:25:24,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:24,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:24,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:24,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:24,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:24,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 23:25:24,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:24,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:24,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:25:24,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:25:24,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:25:24,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:25,168 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-14 23:25:25,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 23:25:25,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:25,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:25,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:25,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:25,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:25,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 23:25:25,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:25,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:25,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:25:25,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:25:25,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:25:25,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:25,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 23:25:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:25,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:25,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:25,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:25,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:25,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 23:25:25,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:25,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:25,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:25:25,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:25:25,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:25:25,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:25,588 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2020-10-14 23:25:25,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 23:25:25,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:25,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:25,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:25,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:25,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:25,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:25:25,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:25,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:25,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:25:25,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:25:25,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:25:25,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:25,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 23:25:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:25,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:25,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:25,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:25,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:25,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 23:25:25,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:25,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:25,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:25:25,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:25:25,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:25:25,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:26,194 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 49 [2020-10-14 23:25:26,256 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 10 proven. 98 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-14 23:25:26,257 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [530507477] [2020-10-14 23:25:26,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:25:26,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-14 23:25:26,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156822932] [2020-10-14 23:25:26,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-14 23:25:26,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:25:26,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-14 23:25:26,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2020-10-14 23:25:26,258 INFO L87 Difference]: Start difference. First operand 72 states and 91 transitions. Second operand 18 states. [2020-10-14 23:25:26,959 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 79 [2020-10-14 23:25:28,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:25:28,148 INFO L93 Difference]: Finished difference Result 109 states and 135 transitions. [2020-10-14 23:25:28,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 23:25:28,149 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 85 [2020-10-14 23:25:28,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:25:28,150 INFO L225 Difference]: With dead ends: 109 [2020-10-14 23:25:28,150 INFO L226 Difference]: Without dead ends: 80 [2020-10-14 23:25:28,151 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2020-10-14 23:25:28,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-14 23:25:28,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 79. [2020-10-14 23:25:28,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-14 23:25:28,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 102 transitions. [2020-10-14 23:25:28,166 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 102 transitions. Word has length 85 [2020-10-14 23:25:28,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:25:28,167 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 102 transitions. [2020-10-14 23:25:28,167 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-14 23:25:28,167 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 102 transitions. [2020-10-14 23:25:28,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-14 23:25:28,168 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:25:28,168 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:25:28,168 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 23:25:28,168 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:25:28,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:25:28,169 INFO L82 PathProgramCache]: Analyzing trace with hash 58979090, now seen corresponding path program 8 times [2020-10-14 23:25:28,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:25:28,169 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1692290468] [2020-10-14 23:25:28,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:25:28,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:28,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:31,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:31,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:31,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 23:25:31,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:25:31,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3483 [2020-10-14 23:25:31,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:31,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:31,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-14 23:25:31,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:25:31,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 23:25:31,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:32,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:25:32,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:32,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:32,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:32,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:32,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:32,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:25:32,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:32,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:32,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:25:32,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:25:32,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:25:32,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:32,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 23:25:32,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:32,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:32,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:32,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:32,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:32,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:25:32,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:32,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:32,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:25:32,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:25:32,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:25:32,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:32,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 23:25:32,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:32,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:32,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:32,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:32,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:32,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 23:25:32,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:32,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:32,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:25:32,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:25:32,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:25:32,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:32,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:25:32,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:32,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:32,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:32,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:32,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:32,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:25:32,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:32,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:32,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:25:32,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:25:32,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:25:32,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:32,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 23:25:32,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:32,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:32,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:32,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:32,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:32,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 23:25:32,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:32,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:32,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:25:32,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:25:32,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:25:32,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:32,571 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2020-10-14 23:25:32,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 23:25:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:32,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:32,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:32,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:32,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:32,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:25:32,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:32,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:32,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:25:32,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:25:32,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:25:32,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:32,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 23:25:32,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:32,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:32,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:32,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:32,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:32,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 23:25:32,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:32,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:32,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:25:32,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:25:32,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:25:32,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:33,384 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 111 [2020-10-14 23:25:33,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 23:25:33,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:33,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:33,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:33,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:33,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:33,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:25:33,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:33,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:33,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:25:33,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:25:33,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:25:33,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:33,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 23:25:33,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:33,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:33,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:33,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:33,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:33,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 23:25:33,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:33,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:33,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:25:33,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:25:33,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:25:33,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:25:34,153 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-10-14 23:25:34,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 23:25:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:34,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:34,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:34,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:34,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:34,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 23:25:34,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:34,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:34,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:25:34,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:25:34,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:25:34,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:25:34,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 23:25:34,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:34,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:34,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:34,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:34,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:34,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 23:25:34,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:34,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:34,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:25:34,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:25:34,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:25:34,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:34,599 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-14 23:25:34,713 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 28 proven. 118 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-14 23:25:34,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1692290468] [2020-10-14 23:25:34,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:25:34,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-14 23:25:34,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290413830] [2020-10-14 23:25:34,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-14 23:25:34,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:25:34,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-14 23:25:34,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2020-10-14 23:25:34,715 INFO L87 Difference]: Start difference. First operand 79 states and 102 transitions. Second operand 21 states. [2020-10-14 23:25:35,937 WARN L193 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 122 [2020-10-14 23:25:37,874 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2020-10-14 23:25:38,244 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2020-10-14 23:25:38,909 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 102 [2020-10-14 23:25:39,640 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-14 23:25:40,073 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2020-10-14 23:25:40,347 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2020-10-14 23:25:41,309 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 100 [2020-10-14 23:25:41,883 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 101 [2020-10-14 23:25:42,143 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2020-10-14 23:25:42,407 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-14 23:25:43,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:25:43,442 INFO L93 Difference]: Finished difference Result 154 states and 193 transitions. [2020-10-14 23:25:43,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-14 23:25:43,442 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 98 [2020-10-14 23:25:43,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:25:43,445 INFO L225 Difference]: With dead ends: 154 [2020-10-14 23:25:43,445 INFO L226 Difference]: Without dead ends: 147 [2020-10-14 23:25:43,446 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=501, Invalid=1949, Unknown=0, NotChecked=0, Total=2450 [2020-10-14 23:25:43,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-10-14 23:25:43,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 83. [2020-10-14 23:25:43,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-10-14 23:25:43,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 106 transitions. [2020-10-14 23:25:43,459 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 106 transitions. Word has length 98 [2020-10-14 23:25:43,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:25:43,459 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 106 transitions. [2020-10-14 23:25:43,459 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-14 23:25:43,459 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 106 transitions. [2020-10-14 23:25:43,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-14 23:25:43,460 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:25:43,461 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:25:43,461 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 23:25:43,461 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:25:43,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:25:43,461 INFO L82 PathProgramCache]: Analyzing trace with hash 58977168, now seen corresponding path program 4 times [2020-10-14 23:25:43,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:25:43,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1966346954] [2020-10-14 23:25:43,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:25:43,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:43,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:45,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:45,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 23:25:45,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:45,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2329 [2020-10-14 23:25:45,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:45,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:45,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-14 23:25:45,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:25:45,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 23:25:45,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:46,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:25:46,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:46,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:46,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:46,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:46,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:46,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:25:46,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:46,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:46,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:25:46,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:25:46,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:25:46,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:46,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 23:25:46,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:46,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:46,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:46,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:46,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:46,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:25:46,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:46,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:46,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:25:46,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:25:46,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:25:46,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:46,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 23:25:46,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:46,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:46,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:46,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:46,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:46,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 23:25:46,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:46,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:46,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:25:46,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:25:46,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:25:46,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:25:46,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:25:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:46,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:46,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:46,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:46,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:46,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:25:46,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:46,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:46,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:25:46,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:25:46,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:25:46,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:25:46,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 23:25:46,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:46,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:46,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:46,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:46,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:46,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 23:25:46,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:46,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:46,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:25:46,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:25:46,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:25:46,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:25:47,033 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2020-10-14 23:25:47,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 23:25:47,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:47,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:47,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:47,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:47,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:47,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:25:47,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:47,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:47,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:25:47,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:25:47,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:25:47,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:47,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 23:25:47,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:47,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:47,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:47,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:47,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:47,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 23:25:47,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:47,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:47,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:25:47,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:25:47,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:25:47,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:47,815 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 100 [2020-10-14 23:25:47,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 23:25:47,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:47,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:47,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:47,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:47,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:47,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:25:47,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:47,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:47,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:25:47,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:25:47,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:25:47,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:47,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 23:25:47,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:47,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:47,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:47,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:47,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:47,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 23:25:47,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:47,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:47,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:25:47,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:25:47,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:25:47,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:48,295 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-14 23:25:48,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 23:25:48,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:48,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:48,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:48,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:48,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:48,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:25:48,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:48,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:48,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:25:48,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:25:48,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:25:48,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:48,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 23:25:48,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:48,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:48,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:25:48,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:25:48,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:25:48,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 23:25:48,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:25:48,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:25:48,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:25:48,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:25:48,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:25:48,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:25:48,867 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-14 23:25:48,965 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 28 proven. 118 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-14 23:25:48,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1966346954] [2020-10-14 23:25:48,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:25:48,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-14 23:25:48,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295749311] [2020-10-14 23:25:48,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-14 23:25:48,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:25:48,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-14 23:25:48,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2020-10-14 23:25:48,968 INFO L87 Difference]: Start difference. First operand 83 states and 106 transitions. Second operand 21 states. [2020-10-14 23:25:50,192 WARN L193 SmtUtils]: Spent 771.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 108 [2020-10-14 23:25:52,216 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2020-10-14 23:25:52,562 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2020-10-14 23:25:53,280 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 105 [2020-10-14 23:25:53,966 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 106 [2020-10-14 23:25:54,276 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2020-10-14 23:25:54,485 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2020-10-14 23:25:55,337 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-14 23:25:55,923 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 104 [2020-10-14 23:25:56,125 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-14 23:25:56,314 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2020-10-14 23:25:57,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:25:57,034 INFO L93 Difference]: Finished difference Result 145 states and 182 transitions. [2020-10-14 23:25:57,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-14 23:25:57,035 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 98 [2020-10-14 23:25:57,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:25:57,037 INFO L225 Difference]: With dead ends: 145 [2020-10-14 23:25:57,038 INFO L226 Difference]: Without dead ends: 143 [2020-10-14 23:25:57,039 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=502, Invalid=1948, Unknown=0, NotChecked=0, Total=2450 [2020-10-14 23:25:57,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-10-14 23:25:57,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 84. [2020-10-14 23:25:57,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-14 23:25:57,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 107 transitions. [2020-10-14 23:25:57,051 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 107 transitions. Word has length 98 [2020-10-14 23:25:57,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:25:57,052 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 107 transitions. [2020-10-14 23:25:57,052 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-14 23:25:57,052 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 107 transitions. [2020-10-14 23:25:57,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-14 23:25:57,053 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:25:57,053 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:25:57,053 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 23:25:57,053 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:25:57,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:25:57,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1925334437, now seen corresponding path program 9 times [2020-10-14 23:25:57,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:25:57,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1686162203] [2020-10-14 23:25:57,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:25:57,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:25:57,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:25:58,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:01,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:02,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:02,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 23:26:02,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 23:26:02,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-14 23:26:02,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:02,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:02,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 23:26:02,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:26:02,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-14 23:26:02,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:02,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:26:02,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:02,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:02,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:02,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:02,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:02,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:26:02,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:02,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:02,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:26:02,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:02,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:26:02,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:02,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 23:26:02,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:02,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:02,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:02,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:02,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:02,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:26:02,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:02,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:02,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:26:02,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:02,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:26:02,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:02,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 23:26:02,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:02,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:02,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:02,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:02,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:02,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 23:26:02,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:02,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:02,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:26:02,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:26:02,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:26:02,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:02,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:26:02,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:02,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:02,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:02,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:02,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:02,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:26:02,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:02,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:02,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:26:02,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:02,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:26:02,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:02,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 23:26:02,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:02,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:02,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:02,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:02,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:02,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 23:26:02,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:02,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:02,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:26:02,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:26:02,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:26:02,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:03,158 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2020-10-14 23:26:03,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 23:26:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:03,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:03,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:03,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:03,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:03,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:26:03,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:03,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:03,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:26:03,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:03,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:26:03,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:03,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 23:26:03,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:03,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:03,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:03,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:03,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:03,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 23:26:03,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:03,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:03,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:26:03,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:26:03,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:26:03,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:03,563 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2020-10-14 23:26:03,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 23:26:03,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:03,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:03,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:03,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:03,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:03,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:26:03,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:03,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:03,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:26:03,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:03,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:26:03,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:03,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 23:26:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:03,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:03,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:03,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:03,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:03,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 23:26:03,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:03,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:03,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:26:03,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:26:03,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:26:03,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:04,035 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2020-10-14 23:26:04,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 23:26:04,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:04,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:04,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:04,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:04,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:04,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:26:04,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:04,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:04,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:26:04,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:04,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:26:04,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:04,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 23:26:04,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:04,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:04,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:04,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:04,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:04,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 23:26:04,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:04,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:04,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:26:04,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:26:04,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:26:04,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:04,545 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2020-10-14 23:26:04,645 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 18 proven. 152 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-14 23:26:04,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1686162203] [2020-10-14 23:26:04,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:26:04,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-14 23:26:04,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080347323] [2020-10-14 23:26:04,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-14 23:26:04,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:26:04,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-14 23:26:04,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=372, Unknown=0, NotChecked=0, Total=420 [2020-10-14 23:26:04,648 INFO L87 Difference]: Start difference. First operand 84 states and 107 transitions. Second operand 21 states. [2020-10-14 23:26:05,331 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 82 [2020-10-14 23:26:06,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:26:06,622 INFO L93 Difference]: Finished difference Result 126 states and 156 transitions. [2020-10-14 23:26:06,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 23:26:06,623 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 103 [2020-10-14 23:26:06,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:26:06,625 INFO L225 Difference]: With dead ends: 126 [2020-10-14 23:26:06,625 INFO L226 Difference]: Without dead ends: 92 [2020-10-14 23:26:06,627 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2020-10-14 23:26:06,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-14 23:26:06,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2020-10-14 23:26:06,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-14 23:26:06,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 118 transitions. [2020-10-14 23:26:06,641 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 118 transitions. Word has length 103 [2020-10-14 23:26:06,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:26:06,642 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 118 transitions. [2020-10-14 23:26:06,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-14 23:26:06,642 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 118 transitions. [2020-10-14 23:26:06,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-14 23:26:06,644 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:26:06,644 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:26:06,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 23:26:06,644 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:26:06,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:26:06,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1206092930, now seen corresponding path program 10 times [2020-10-14 23:26:06,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:26:06,645 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [125055989] [2020-10-14 23:26:06,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:26:06,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:06,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:10,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:11,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:11,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-14 23:26:11,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:26:11,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5124 [2020-10-14 23:26:11,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:11,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:11,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-14 23:26:11,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:26:11,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-14 23:26:11,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:12,364 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2020-10-14 23:26:12,544 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2020-10-14 23:26:12,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:26:12,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:12,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:12,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:12,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:12,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:12,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:26:12,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:12,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:12,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:26:12,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:12,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:26:12,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:12,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 23:26:12,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:12,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:12,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:12,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:12,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:12,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:26:12,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:12,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:12,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:26:12,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:12,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:26:12,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:12,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 23:26:12,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:12,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:12,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:12,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:12,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:12,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 23:26:12,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:12,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:12,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:26:12,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:12,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:26:12,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:13,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:26:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:13,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:13,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:13,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:13,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:13,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:26:13,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:13,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:13,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:26:13,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:13,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:26:13,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:13,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 23:26:13,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:13,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:13,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:13,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:13,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:13,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 23:26:13,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:13,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:13,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:26:13,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:26:13,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:26:13,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 23:26:13,298 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-14 23:26:13,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 23:26:13,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:13,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:13,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:13,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:13,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:13,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:26:13,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:13,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:13,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:26:13,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:13,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:26:13,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:26:13,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 23:26:13,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:13,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:13,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:13,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:13,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:13,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 23:26:13,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:13,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:13,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:26:13,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:26:13,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:26:13,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:26:13,991 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2020-10-14 23:26:13,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 23:26:13,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:13,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:13,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:13,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:13,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:13,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:26:13,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:13,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:13,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:26:13,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:13,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:26:13,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:14,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 23:26:14,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:14,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:14,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:14,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:14,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:14,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 23:26:14,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:14,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:14,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:26:14,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:26:14,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:26:14,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:14,715 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 101 [2020-10-14 23:26:14,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 23:26:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:14,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:14,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:14,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:14,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:14,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 23:26:14,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:14,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:14,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:26:14,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:14,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:26:14,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:14,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 23:26:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:14,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:14,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:14,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:14,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:14,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 23:26:14,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:14,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:14,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:26:14,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:26:14,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:26:14,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:15,473 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-14 23:26:15,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 23:26:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:15,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:15,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:15,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:15,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:15,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:26:15,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:15,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:15,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:26:15,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:15,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:26:15,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:15,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 23:26:15,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:15,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:15,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:15,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:15,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:15,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 23:26:15,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:15,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:15,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:26:15,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:26:15,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:26:15,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:16,411 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 92 [2020-10-14 23:26:16,572 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 37 proven. 180 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-14 23:26:16,572 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [125055989] [2020-10-14 23:26:16,572 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:26:16,572 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-14 23:26:16,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700982527] [2020-10-14 23:26:16,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-14 23:26:16,573 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:26:16,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-14 23:26:16,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2020-10-14 23:26:16,574 INFO L87 Difference]: Start difference. First operand 91 states and 118 transitions. Second operand 24 states. [2020-10-14 23:26:18,025 WARN L193 SmtUtils]: Spent 984.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 121 [2020-10-14 23:26:20,340 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-10-14 23:26:20,782 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-14 23:26:21,431 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 82 [2020-10-14 23:26:21,933 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2020-10-14 23:26:23,102 WARN L193 SmtUtils]: Spent 742.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 112 [2020-10-14 23:26:24,218 WARN L193 SmtUtils]: Spent 733.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 113 [2020-10-14 23:26:24,861 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 94 [2020-10-14 23:26:25,423 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2020-10-14 23:26:27,073 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 110 [2020-10-14 23:26:28,091 WARN L193 SmtUtils]: Spent 732.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 111 [2020-10-14 23:26:28,498 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 92 [2020-10-14 23:26:28,971 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2020-10-14 23:26:30,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:26:30,355 INFO L93 Difference]: Finished difference Result 176 states and 221 transitions. [2020-10-14 23:26:30,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-14 23:26:30,356 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 116 [2020-10-14 23:26:30,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:26:30,359 INFO L225 Difference]: With dead ends: 176 [2020-10-14 23:26:30,359 INFO L226 Difference]: Without dead ends: 169 [2020-10-14 23:26:30,361 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 841 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=649, Invalid=2773, Unknown=0, NotChecked=0, Total=3422 [2020-10-14 23:26:30,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-14 23:26:30,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 95. [2020-10-14 23:26:30,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-10-14 23:26:30,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 122 transitions. [2020-10-14 23:26:30,377 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 122 transitions. Word has length 116 [2020-10-14 23:26:30,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:26:30,378 INFO L479 AbstractCegarLoop]: Abstraction has 95 states and 122 transitions. [2020-10-14 23:26:30,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-14 23:26:30,378 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 122 transitions. [2020-10-14 23:26:30,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-14 23:26:30,379 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:26:30,379 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:26:30,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 23:26:30,380 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:26:30,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:26:30,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1206094852, now seen corresponding path program 5 times [2020-10-14 23:26:30,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:26:30,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [803198835] [2020-10-14 23:26:30,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:26:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:30,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:35,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:35,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-14 23:26:35,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:35,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4593 [2020-10-14 23:26:35,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:35,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:35,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-14 23:26:35,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:26:35,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-14 23:26:35,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:35,450 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2020-10-14 23:26:35,651 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2020-10-14 23:26:35,801 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2020-10-14 23:26:36,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:26:36,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:36,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:36,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:36,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:36,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:36,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:26:36,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:36,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:36,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:26:36,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:36,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:26:36,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:36,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 23:26:36,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:36,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:36,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:36,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:36,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:36,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:26:36,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:36,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:36,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:26:36,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:36,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:26:36,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:36,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 23:26:36,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:36,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:36,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:36,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:36,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:36,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 23:26:36,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:36,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:36,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:26:36,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:36,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:26:36,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:36,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:26:36,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:36,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:36,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:36,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:36,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:36,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:26:36,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:36,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:36,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:26:36,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:36,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:26:36,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:36,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 23:26:36,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:36,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:36,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:36,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:36,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:36,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 23:26:36,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:36,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:36,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:26:36,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:26:36,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:26:36,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:36,449 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2020-10-14 23:26:36,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 23:26:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:36,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:36,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:36,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:36,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:36,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:26:36,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:36,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:36,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:26:36,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:36,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:26:36,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:36,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 23:26:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:36,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:36,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:36,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:36,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:36,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 23:26:36,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:36,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:36,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:26:36,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:26:36,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:26:36,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:37,358 WARN L193 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 111 [2020-10-14 23:26:37,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 23:26:37,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:37,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:37,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:37,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:37,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:37,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:26:37,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:37,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:37,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:26:37,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:37,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:26:37,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:37,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 23:26:37,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:37,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:37,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:37,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:37,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:37,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 23:26:37,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:37,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:37,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:26:37,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:26:37,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:26:37,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:38,003 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-14 23:26:38,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 23:26:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:38,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:38,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:38,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:38,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:38,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:26:38,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:38,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:38,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:26:38,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:38,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:26:38,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:38,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 23:26:38,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:38,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:38,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:38,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:38,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:38,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 23:26:38,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:38,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:38,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:26:38,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:26:38,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:26:38,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:38,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 23:26:38,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:38,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:38,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:38,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:38,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:38,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 23:26:38,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:38,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:38,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:26:38,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:38,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:26:38,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:38,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 23:26:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:38,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:38,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:38,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:38,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:38,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 23:26:38,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:38,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:38,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:26:38,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:26:38,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:26:38,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:38,586 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-14 23:26:38,748 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 38 proven. 177 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-10-14 23:26:38,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [803198835] [2020-10-14 23:26:38,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:26:38,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-14 23:26:38,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934853325] [2020-10-14 23:26:38,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-14 23:26:38,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:26:38,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-14 23:26:38,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2020-10-14 23:26:38,753 INFO L87 Difference]: Start difference. First operand 95 states and 122 transitions. Second operand 23 states. [2020-10-14 23:26:39,766 WARN L193 SmtUtils]: Spent 645.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 113 [2020-10-14 23:26:41,653 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2020-10-14 23:26:42,022 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2020-10-14 23:26:42,624 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 83 [2020-10-14 23:26:43,079 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 81 [2020-10-14 23:26:44,362 WARN L193 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 112 [2020-10-14 23:26:45,503 WARN L193 SmtUtils]: Spent 762.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 113 [2020-10-14 23:26:46,056 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 94 [2020-10-14 23:26:46,507 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 95 [2020-10-14 23:26:48,189 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 110 [2020-10-14 23:26:49,188 WARN L193 SmtUtils]: Spent 762.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 111 [2020-10-14 23:26:49,581 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 92 [2020-10-14 23:26:50,001 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 93 [2020-10-14 23:26:51,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:26:51,175 INFO L93 Difference]: Finished difference Result 167 states and 210 transitions. [2020-10-14 23:26:51,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-14 23:26:51,177 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 116 [2020-10-14 23:26:51,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:26:51,179 INFO L225 Difference]: With dead ends: 167 [2020-10-14 23:26:51,179 INFO L226 Difference]: Without dead ends: 165 [2020-10-14 23:26:51,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 828 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=646, Invalid=2660, Unknown=0, NotChecked=0, Total=3306 [2020-10-14 23:26:51,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-10-14 23:26:51,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 96. [2020-10-14 23:26:51,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-14 23:26:51,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 123 transitions. [2020-10-14 23:26:51,200 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 123 transitions. Word has length 116 [2020-10-14 23:26:51,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:26:51,200 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 123 transitions. [2020-10-14 23:26:51,201 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-14 23:26:51,201 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 123 transitions. [2020-10-14 23:26:51,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-14 23:26:51,202 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:26:51,202 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:26:51,202 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 23:26:51,203 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:26:51,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:26:51,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1023044241, now seen corresponding path program 11 times [2020-10-14 23:26:51,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:26:51,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1348556339] [2020-10-14 23:26:51,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:26:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:51,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:53,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:56,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:56,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-14 23:26:56,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:26:56,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-14 23:26:56,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:56,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:56,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-14 23:26:56,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:26:56,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 23:26:56,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:56,904 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2020-10-14 23:26:57,127 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 73 [2020-10-14 23:26:57,320 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2020-10-14 23:26:57,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:26:57,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:57,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:57,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:57,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:57,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:57,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:26:57,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:57,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:57,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:26:57,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:57,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:26:57,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:57,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 23:26:57,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:57,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:57,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:57,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:57,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:57,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:26:57,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:57,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:57,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:26:57,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:57,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:26:57,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:57,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 23:26:57,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:57,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:57,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:57,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:57,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:57,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 23:26:57,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:57,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:57,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:26:57,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:26:57,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:26:57,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:57,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:26:57,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:57,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:57,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:57,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:57,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:57,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:26:57,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:57,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:57,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:26:57,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:57,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:26:57,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:57,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 23:26:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:57,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:57,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:57,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:57,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:57,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 23:26:57,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:57,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:57,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:26:57,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:26:57,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:26:57,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:58,379 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2020-10-14 23:26:58,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 23:26:58,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:58,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:58,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:58,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:58,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:58,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:26:58,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:58,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:58,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:26:58,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:58,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:26:58,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:58,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 23:26:58,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:58,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:58,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:58,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:58,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:58,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 23:26:58,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:58,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:58,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:26:58,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:26:58,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:26:58,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:58,911 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2020-10-14 23:26:58,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 23:26:58,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:58,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:58,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:58,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:58,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:58,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:26:58,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:58,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:58,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:26:58,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:58,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:26:58,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:58,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 23:26:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:58,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:58,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:58,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:58,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:58,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 23:26:58,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:58,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:58,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:26:58,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:26:58,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:26:58,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:59,446 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 79 [2020-10-14 23:26:59,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 23:26:59,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:59,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:59,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:59,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:59,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:59,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:26:59,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:59,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:59,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:26:59,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:26:59,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:26:59,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:26:59,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 23:26:59,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:26:59,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:26:59,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:26:59,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:26:59,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:26:59,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 23:26:59,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:26:59,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:26:59,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:26:59,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:26:59,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:26:59,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:00,110 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2020-10-14 23:27:00,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 23:27:00,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:00,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:00,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:00,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:00,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:00,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 23:27:00,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:00,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:00,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:27:00,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:27:00,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:27:00,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:00,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 23:27:00,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:00,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:00,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:00,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:00,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:00,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 23:27:00,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:00,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:00,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:27:00,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:00,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:27:00,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:00,685 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 22 proven. 224 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-14 23:27:00,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1348556339] [2020-10-14 23:27:00,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:27:00,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-14 23:27:00,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011649097] [2020-10-14 23:27:00,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-14 23:27:00,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:27:00,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-14 23:27:00,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2020-10-14 23:27:00,687 INFO L87 Difference]: Start difference. First operand 96 states and 123 transitions. Second operand 24 states. [2020-10-14 23:27:01,595 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84 [2020-10-14 23:27:04,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:27:04,194 INFO L93 Difference]: Finished difference Result 143 states and 177 transitions. [2020-10-14 23:27:04,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 23:27:04,195 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 121 [2020-10-14 23:27:04,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:27:04,197 INFO L225 Difference]: With dead ends: 143 [2020-10-14 23:27:04,197 INFO L226 Difference]: Without dead ends: 104 [2020-10-14 23:27:04,198 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2020-10-14 23:27:04,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-10-14 23:27:04,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 103. [2020-10-14 23:27:04,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-10-14 23:27:04,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 134 transitions. [2020-10-14 23:27:04,214 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 134 transitions. Word has length 121 [2020-10-14 23:27:04,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:27:04,214 INFO L479 AbstractCegarLoop]: Abstraction has 103 states and 134 transitions. [2020-10-14 23:27:04,214 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-14 23:27:04,214 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 134 transitions. [2020-10-14 23:27:04,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-14 23:27:04,215 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:27:04,216 INFO L422 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:27:04,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 23:27:04,216 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:27:04,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:27:04,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1000246318, now seen corresponding path program 12 times [2020-10-14 23:27:04,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:27:04,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [371972033] [2020-10-14 23:27:04,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:27:04,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:04,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:09,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:09,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-14 23:27:09,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:09,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 23:27:09,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:09,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:09,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-14 23:27:09,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:27:09,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 155 [2020-10-14 23:27:09,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:09,926 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2020-10-14 23:27:10,064 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2020-10-14 23:27:10,222 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2020-10-14 23:27:10,388 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2020-10-14 23:27:10,528 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-10-14 23:27:10,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:27:10,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:10,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:10,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:10,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:10,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:10,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:27:10,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:10,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:10,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:27:10,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:27:10,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:27:10,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:10,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 23:27:10,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:10,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:10,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:10,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:10,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:10,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:27:10,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:10,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:10,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:27:10,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:27:10,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:27:10,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:10,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 23:27:10,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:10,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:10,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:10,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:10,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:10,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 23:27:10,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:10,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:10,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:27:10,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:27:10,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:27:10,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:10,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:27:10,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:10,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:10,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:10,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:10,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:10,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:27:10,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:10,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:10,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:27:10,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:27:10,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:27:10,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:10,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 23:27:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:10,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:10,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:10,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:10,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:10,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 23:27:10,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:10,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:10,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:27:10,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:10,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:27:10,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:11,294 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2020-10-14 23:27:11,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 23:27:11,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:11,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:11,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:11,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:11,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:11,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:27:11,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:11,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:11,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:27:11,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:27:11,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:27:11,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:11,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 23:27:11,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:11,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:11,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:11,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:11,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:11,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 23:27:11,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:11,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:11,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:27:11,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:11,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:27:11,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:12,242 WARN L193 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 106 [2020-10-14 23:27:12,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 23:27:12,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:12,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:12,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:12,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:12,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:12,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:27:12,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:12,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:12,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:27:12,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:27:12,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:27:12,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:12,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 23:27:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:12,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:12,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:12,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:12,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:12,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 23:27:12,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:12,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:12,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:27:12,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:12,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:27:12,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:14,320 WARN L193 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 155 DAG size of output: 142 [2020-10-14 23:27:14,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 23:27:14,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:14,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:14,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:14,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:14,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:14,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:27:14,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:14,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:14,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:27:14,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:27:14,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:27:14,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:14,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 23:27:14,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:14,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:14,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:14,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:14,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:14,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 23:27:14,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:14,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:14,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:27:14,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:14,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:27:14,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:15,075 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-14 23:27:15,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 23:27:15,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:15,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:15,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:15,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:15,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:15,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:27:15,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:15,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:15,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:27:15,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:27:15,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:27:15,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:15,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 23:27:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:15,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:15,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:15,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:15,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:15,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 23:27:15,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:15,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:15,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:27:15,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:15,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:27:15,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:16,128 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 104 [2020-10-14 23:27:16,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 23:27:16,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:16,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:16,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:16,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:16,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:16,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:27:16,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:16,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:16,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:27:16,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:27:16,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:27:16,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:16,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 23:27:16,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:16,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:16,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:16,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:16,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:16,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 23:27:16,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:16,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:16,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:27:16,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:16,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:27:16,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:17,476 WARN L193 SmtUtils]: Spent 923.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 101 [2020-10-14 23:27:17,708 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 44 proven. 258 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-14 23:27:17,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [371972033] [2020-10-14 23:27:17,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:27:17,709 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-14 23:27:17,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886186503] [2020-10-14 23:27:17,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-14 23:27:17,709 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:27:17,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-14 23:27:17,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=636, Unknown=0, NotChecked=0, Total=702 [2020-10-14 23:27:17,710 INFO L87 Difference]: Start difference. First operand 103 states and 134 transitions. Second operand 27 states. [2020-10-14 23:27:20,391 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 194 DAG size of output: 160 [2020-10-14 23:27:23,368 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-14 23:27:23,881 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2020-10-14 23:27:24,721 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 81 [2020-10-14 23:27:25,285 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2020-10-14 23:27:26,196 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 96 [2020-10-14 23:27:26,827 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 94 [2020-10-14 23:27:27,929 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 128 [2020-10-14 23:27:28,979 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 129 [2020-10-14 23:27:29,727 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 118 [2020-10-14 23:27:30,358 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 119 [2020-10-14 23:27:30,853 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 100 [2020-10-14 23:27:31,341 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 101 [2020-10-14 23:27:31,648 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2020-10-14 23:27:31,960 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2020-10-14 23:27:33,433 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 126 [2020-10-14 23:27:34,306 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 127 [2020-10-14 23:27:34,847 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 116 [2020-10-14 23:27:35,376 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 117 [2020-10-14 23:27:35,827 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 98 [2020-10-14 23:27:36,286 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 99 [2020-10-14 23:27:36,831 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2020-10-14 23:27:37,257 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2020-10-14 23:27:39,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:27:39,065 INFO L93 Difference]: Finished difference Result 198 states and 249 transitions. [2020-10-14 23:27:39,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-10-14 23:27:39,066 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 134 [2020-10-14 23:27:39,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:27:39,069 INFO L225 Difference]: With dead ends: 198 [2020-10-14 23:27:39,069 INFO L226 Difference]: Without dead ends: 191 [2020-10-14 23:27:39,071 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1148 ImplicationChecksByTransitivity, 20.5s TimeCoverageRelationStatistics Valid=841, Invalid=3715, Unknown=0, NotChecked=0, Total=4556 [2020-10-14 23:27:39,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-10-14 23:27:39,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 107. [2020-10-14 23:27:39,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-14 23:27:39,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 138 transitions. [2020-10-14 23:27:39,088 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 138 transitions. Word has length 134 [2020-10-14 23:27:39,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:27:39,088 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 138 transitions. [2020-10-14 23:27:39,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-14 23:27:39,088 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 138 transitions. [2020-10-14 23:27:39,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-14 23:27:39,089 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:27:39,090 INFO L422 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:27:39,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 23:27:39,090 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:27:39,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:27:39,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1000248240, now seen corresponding path program 6 times [2020-10-14 23:27:39,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:27:39,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1158165585] [2020-10-14 23:27:39,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:27:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:39,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:44,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:44,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-14 23:27:44,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:44,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-14 23:27:44,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:44,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:44,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-14 23:27:44,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:27:44,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-10-14 23:27:44,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:44,982 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2020-10-14 23:27:45,182 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-10-14 23:27:45,575 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2020-10-14 23:27:45,932 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 86 [2020-10-14 23:27:46,299 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 67 [2020-10-14 23:27:46,553 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 63 [2020-10-14 23:27:46,729 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2020-10-14 23:27:46,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:27:46,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:46,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:46,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:46,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:46,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:46,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:27:46,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:46,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:47,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:27:47,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:27:47,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:27:47,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:47,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 23:27:47,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:47,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:47,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:47,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:47,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:47,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:27:47,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:47,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:47,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:27:47,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:27:47,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:27:47,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:47,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 23:27:47,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:47,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:47,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:47,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:47,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:47,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 23:27:47,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:47,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:47,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:27:47,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:27:47,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:27:47,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:47,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:27:47,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:47,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:47,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:47,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:47,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:47,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:27:47,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:47,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:47,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:27:47,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:27:47,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:27:47,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:47,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 23:27:47,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:47,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:47,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:47,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:47,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:47,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 23:27:47,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:47,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:47,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:27:47,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:47,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:27:47,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:47,851 WARN L193 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 88 [2020-10-14 23:27:47,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 23:27:47,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:47,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:47,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:47,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:47,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:47,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:27:47,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:47,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:47,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:27:47,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:27:47,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:27:47,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:47,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 23:27:47,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:47,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:47,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:47,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:47,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:47,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 23:27:47,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:47,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:47,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:27:47,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:47,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:27:47,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:48,642 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-14 23:27:48,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 23:27:48,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:48,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:48,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:48,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:48,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:48,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:27:48,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:48,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:48,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:27:48,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:27:48,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:27:48,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:48,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 23:27:48,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:48,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:48,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:48,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:48,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:48,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 23:27:48,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:48,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:48,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:27:48,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:48,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:27:48,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:49,380 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-14 23:27:49,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 23:27:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:49,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:49,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:49,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:49,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:49,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:27:49,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:49,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:49,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:27:49,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:27:49,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:27:49,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:49,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 23:27:49,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:49,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:49,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:49,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:49,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:49,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 23:27:49,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:49,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:49,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:27:49,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:49,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:27:49,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:50,149 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-14 23:27:50,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 23:27:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:50,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:50,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:50,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:50,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:50,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 23:27:50,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:50,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:50,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:27:50,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:27:50,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:27:50,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:50,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 23:27:50,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:50,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:50,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:50,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:50,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:50,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 23:27:50,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:50,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:50,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:27:50,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:50,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:27:50,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:51,384 WARN L193 SmtUtils]: Spent 782.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-10-14 23:27:51,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 23:27:51,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:51,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:51,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:51,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:51,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:51,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 23:27:51,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:51,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:51,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:27:51,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:27:51,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:27:51,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:51,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 23:27:51,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:27:51,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:27:51,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:27:51,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:27:51,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:27:51,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 23:27:51,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:27:51,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:27:51,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:27:51,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:27:51,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:27:51,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:27:52,346 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91 [2020-10-14 23:27:52,589 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 42 proven. 260 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-14 23:27:52,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1158165585] [2020-10-14 23:27:52,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:27:52,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-14 23:27:52,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427596800] [2020-10-14 23:27:52,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-14 23:27:52,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:27:52,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-14 23:27:52,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=631, Unknown=0, NotChecked=0, Total=702 [2020-10-14 23:27:52,592 INFO L87 Difference]: Start difference. First operand 107 states and 138 transitions. Second operand 27 states. [2020-10-14 23:27:54,539 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 142 DAG size of output: 124 [2020-10-14 23:27:56,525 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2020-10-14 23:27:57,049 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2020-10-14 23:27:57,805 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2020-10-14 23:27:58,374 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-10-14 23:27:59,297 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 88 [2020-10-14 23:28:00,000 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 86 [2020-10-14 23:28:01,052 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 99 [2020-10-14 23:28:01,788 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 97 [2020-10-14 23:28:03,263 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 133 [2020-10-14 23:28:04,432 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 134 [2020-10-14 23:28:05,176 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 116 [2020-10-14 23:28:05,758 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 117 [2020-10-14 23:28:06,291 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 101 [2020-10-14 23:28:06,835 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 102 [2020-10-14 23:28:07,248 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2020-10-14 23:28:07,643 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2020-10-14 23:28:09,397 WARN L193 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 131 [2020-10-14 23:28:10,269 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 132 [2020-10-14 23:28:10,805 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 114 [2020-10-14 23:28:11,343 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 115 [2020-10-14 23:28:11,842 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 99 [2020-10-14 23:28:12,346 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 100 [2020-10-14 23:28:12,705 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2020-10-14 23:28:13,085 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2020-10-14 23:28:15,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:28:15,358 INFO L93 Difference]: Finished difference Result 189 states and 238 transitions. [2020-10-14 23:28:15,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-10-14 23:28:15,360 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 134 [2020-10-14 23:28:15,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:28:15,363 INFO L225 Difference]: With dead ends: 189 [2020-10-14 23:28:15,364 INFO L226 Difference]: Without dead ends: 187 [2020-10-14 23:28:15,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1146 ImplicationChecksByTransitivity, 20.7s TimeCoverageRelationStatistics Valid=842, Invalid=3714, Unknown=0, NotChecked=0, Total=4556 [2020-10-14 23:28:15,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-10-14 23:28:15,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 108. [2020-10-14 23:28:15,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-14 23:28:15,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 139 transitions. [2020-10-14 23:28:15,385 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 139 transitions. Word has length 134 [2020-10-14 23:28:15,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:28:15,385 INFO L479 AbstractCegarLoop]: Abstraction has 108 states and 139 transitions. [2020-10-14 23:28:15,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-14 23:28:15,385 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 139 transitions. [2020-10-14 23:28:15,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-14 23:28:15,387 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:28:15,387 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:28:15,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 23:28:15,387 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:28:15,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:28:15,388 INFO L82 PathProgramCache]: Analyzing trace with hash -2106412645, now seen corresponding path program 13 times [2020-10-14 23:28:15,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:28:15,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [714433804] [2020-10-14 23:28:15,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:28:15,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:28:15,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:28:18,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:28:20,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:28:20,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-14 23:28:20,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:28:20,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5193 [2020-10-14 23:28:20,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:28:20,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:28:20,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-14 23:28:20,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:28:20,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-14 23:28:20,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:28:22,292 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 41 [2020-10-14 23:28:22,422 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-10-14 23:28:22,979 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 64