/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/systemc/transmitter.01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 14:43:32,042 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 14:43:32,045 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 14:43:32,092 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 14:43:32,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 14:43:32,099 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 14:43:32,101 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 14:43:32,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 14:43:32,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 14:43:32,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 14:43:32,115 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 14:43:32,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 14:43:32,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 14:43:32,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 14:43:32,121 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 14:43:32,124 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 14:43:32,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 14:43:32,127 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 14:43:32,134 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 14:43:32,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 14:43:32,143 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 14:43:32,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 14:43:32,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 14:43:32,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 14:43:32,156 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 14:43:32,156 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 14:43:32,156 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 14:43:32,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 14:43:32,159 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 14:43:32,160 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 14:43:32,160 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 14:43:32,161 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 14:43:32,162 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 14:43:32,163 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 14:43:32,164 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 14:43:32,164 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 14:43:32,165 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 14:43:32,165 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 14:43:32,166 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 14:43:32,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 14:43:32,167 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 14:43:32,174 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 14:43:32,224 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 14:43:32,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 14:43:32,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 14:43:32,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 14:43:32,228 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 14:43:32,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 14:43:32,229 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 14:43:32,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 14:43:32,229 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 14:43:32,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 14:43:32,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 14:43:32,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 14:43:32,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 14:43:32,231 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 14:43:32,231 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 14:43:32,232 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 14:43:32,232 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 14:43:32,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 14:43:32,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 14:43:32,233 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 14:43:32,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 14:43:32,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 14:43:32,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 14:43:32,233 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 14:43:32,234 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 14:43:32,234 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 14:43:32,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 14:43:32,234 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 14:43:32,234 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 14:43:32,235 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 14:43:32,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 14:43:32,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 14:43:32,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 14:43:32,749 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 14:43:32,749 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 14:43:32,750 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.01.cil.c [2020-10-29 14:43:32,807 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a341be2b0/f633ea6864204984960f23df94c9bc94/FLAG74d30871b [2020-10-29 14:43:33,513 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 14:43:33,514 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.01.cil.c [2020-10-29 14:43:33,525 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a341be2b0/f633ea6864204984960f23df94c9bc94/FLAG74d30871b [2020-10-29 14:43:33,873 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a341be2b0/f633ea6864204984960f23df94c9bc94 [2020-10-29 14:43:33,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 14:43:33,885 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 14:43:33,888 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 14:43:33,888 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 14:43:33,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 14:43:33,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 02:43:33" (1/1) ... [2020-10-29 14:43:33,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7582d24e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:43:33, skipping insertion in model container [2020-10-29 14:43:33,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 02:43:33" (1/1) ... [2020-10-29 14:43:33,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 14:43:33,965 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 14:43:34,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 14:43:34,154 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 14:43:34,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 14:43:34,243 INFO L208 MainTranslator]: Completed translation [2020-10-29 14:43:34,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:43:34 WrapperNode [2020-10-29 14:43:34,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 14:43:34,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 14:43:34,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 14:43:34,247 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 14:43:34,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:43:34" (1/1) ... [2020-10-29 14:43:34,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:43:34" (1/1) ... [2020-10-29 14:43:34,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:43:34" (1/1) ... [2020-10-29 14:43:34,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:43:34" (1/1) ... [2020-10-29 14:43:34,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:43:34" (1/1) ... [2020-10-29 14:43:34,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:43:34" (1/1) ... [2020-10-29 14:43:34,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:43:34" (1/1) ... [2020-10-29 14:43:34,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 14:43:34,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 14:43:34,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 14:43:34,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 14:43:34,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:43:34" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 14:43:34,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 14:43:34,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 14:43:34,433 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 14:43:34,433 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-10-29 14:43:34,433 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-10-29 14:43:34,434 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-10-29 14:43:34,434 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-10-29 14:43:34,434 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-10-29 14:43:34,434 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-10-29 14:43:34,434 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-10-29 14:43:34,434 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-10-29 14:43:34,435 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-10-29 14:43:34,435 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-10-29 14:43:34,435 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-10-29 14:43:34,435 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-10-29 14:43:34,435 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-10-29 14:43:34,435 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-10-29 14:43:34,435 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-10-29 14:43:34,436 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-10-29 14:43:34,436 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-10-29 14:43:34,436 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-10-29 14:43:34,436 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 14:43:34,436 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 14:43:34,436 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 14:43:34,437 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 14:43:34,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 14:43:34,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 14:43:34,437 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-10-29 14:43:34,437 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-10-29 14:43:34,437 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-10-29 14:43:34,438 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-10-29 14:43:34,438 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-10-29 14:43:34,438 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-10-29 14:43:34,438 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-10-29 14:43:34,438 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-10-29 14:43:34,438 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-10-29 14:43:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-10-29 14:43:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-10-29 14:43:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-10-29 14:43:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-10-29 14:43:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-10-29 14:43:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-10-29 14:43:34,440 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-10-29 14:43:34,440 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-10-29 14:43:34,440 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-10-29 14:43:34,440 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 14:43:34,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 14:43:34,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 14:43:34,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 14:43:34,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 14:43:34,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 14:43:34,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 14:43:35,159 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 14:43:35,160 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-29 14:43:35,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:43:35 BoogieIcfgContainer [2020-10-29 14:43:35,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 14:43:35,164 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 14:43:35,164 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 14:43:35,168 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 14:43:35,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 02:43:33" (1/3) ... [2020-10-29 14:43:35,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e2df8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 02:43:35, skipping insertion in model container [2020-10-29 14:43:35,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:43:34" (2/3) ... [2020-10-29 14:43:35,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e2df8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 02:43:35, skipping insertion in model container [2020-10-29 14:43:35,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:43:35" (3/3) ... [2020-10-29 14:43:35,171 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.01.cil.c [2020-10-29 14:43:35,183 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 14:43:35,188 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 14:43:35,199 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 14:43:35,227 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 14:43:35,228 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 14:43:35,228 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 14:43:35,228 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 14:43:35,228 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 14:43:35,228 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 14:43:35,228 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 14:43:35,229 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 14:43:35,252 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states. [2020-10-29 14:43:35,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-29 14:43:35,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:43:35,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:43:35,264 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:43:35,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:43:35,271 INFO L82 PathProgramCache]: Analyzing trace with hash -154404590, now seen corresponding path program 1 times [2020-10-29 14:43:35,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:43:35,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [189239001] [2020-10-29 14:43:35,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:43:35,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:35,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:35,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:35,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:35,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:36,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:36,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:36,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:40,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:40,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 14:43:40,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 14:43:40,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-29 14:43:40,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:40,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:40,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 14:43:40,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 14:43:40,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 14:43:40,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 14:43:40,683 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-10-29 14:43:40,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:43:40,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:40,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:40,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:40,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:43:40,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:43:40,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 14:43:40,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:40,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:40,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:43:40,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:43:40,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 14:43:40,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:43:40,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:43:40,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:40,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:40,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:40,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:43:40,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:43:40,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:43:40,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:40,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:40,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:43:40,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:43:40,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:43:40,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:43:40,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 14:43:40,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:40,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:40,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:40,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 14:43:40,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:43:40,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:43:40,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:40,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:40,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:43:40,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:43:40,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 14:43:40,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:43:40,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-29 14:43:40,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:40,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:40,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:40,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:43:40,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:43:40,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:43:40,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:40,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:40,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:43:40,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:43:40,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:43:40,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:43:40,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 14:43:40,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:40,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:40,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:40,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:43:40,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:43:40,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 14:43:40,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:40,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:40,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:43:40,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:43:40,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 14:43:40,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:43:40,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 14:43:40,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:40,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:40,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:40,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:41,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:41,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 14:43:41,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 14:43:41,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-29 14:43:41,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:41,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:41,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:43:41,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:43:41,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-29 14:43:41,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:43:41,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:43:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:41,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:41,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:41,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 14:43:41,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:43:41,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:43:41,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:41,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:41,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:43:41,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:43:41,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:43:41,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:43:41,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-29 14:43:41,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:41,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:41,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:41,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 14:43:41,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:43:41,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:43:41,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:41,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:41,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:43:41,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:43:41,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:43:41,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 14:43:41,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 14:43:41,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:41,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:41,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:41,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:43:41,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:43:41,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 14:43:41,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:41,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:41,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:43:41,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:43:41,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 14:43:41,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:43:41,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 14:43:41,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:41,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:41,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:41,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:43:41,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:43:41,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:43:41,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:41,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:41,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:43:41,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 14:43:41,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:43:41,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:43:41,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 14:43:41,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [189239001] [2020-10-29 14:43:41,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:43:41,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 14:43:41,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178735825] [2020-10-29 14:43:41,241 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 14:43:41,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:43:41,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 14:43:41,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-29 14:43:41,262 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 10 states. [2020-10-29 14:43:44,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:43:44,346 INFO L93 Difference]: Finished difference Result 417 states and 628 transitions. [2020-10-29 14:43:44,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 14:43:44,348 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 76 [2020-10-29 14:43:44,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:43:44,377 INFO L225 Difference]: With dead ends: 417 [2020-10-29 14:43:44,377 INFO L226 Difference]: Without dead ends: 276 [2020-10-29 14:43:44,389 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=181, Invalid=521, Unknown=0, NotChecked=0, Total=702 [2020-10-29 14:43:44,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-10-29 14:43:44,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 154. [2020-10-29 14:43:44,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-29 14:43:44,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 192 transitions. [2020-10-29 14:43:44,526 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 192 transitions. Word has length 76 [2020-10-29 14:43:44,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:43:44,532 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 192 transitions. [2020-10-29 14:43:44,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 14:43:44,533 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 192 transitions. [2020-10-29 14:43:44,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-29 14:43:44,540 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:43:44,540 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:43:44,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 14:43:44,541 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:43:44,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:43:44,542 INFO L82 PathProgramCache]: Analyzing trace with hash -13855980, now seen corresponding path program 1 times [2020-10-29 14:43:44,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:43:44,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [546737177] [2020-10-29 14:43:44,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:43:44,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:44,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:44,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:44,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:44,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:44,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:45,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:46,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:47,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:49,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:49,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 14:43:49,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-29 14:43:49,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 14:43:49,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:49,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:49,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 14:43:49,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 14:43:49,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-29 14:43:49,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:43:49,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:43:49,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:49,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:49,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:49,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:43:49,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:43:49,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 14:43:49,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:49,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:49,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:43:49,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:43:49,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 14:43:49,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:43:49,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:43:49,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:49,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:49,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:49,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:43:49,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:43:49,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:43:49,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:49,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:49,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:43:49,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:43:49,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:43:49,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:43:49,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 14:43:49,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:49,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:49,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:49,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 14:43:49,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:43:49,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:43:49,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:49,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:49,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:43:49,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:43:49,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 14:43:49,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 14:43:49,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-29 14:43:49,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:49,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:49,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:49,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:43:49,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:43:49,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:43:49,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:49,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:49,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:43:49,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:43:49,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:43:49,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:43:49,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 14:43:49,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:49,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:49,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:49,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:43:49,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:43:49,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:43:49,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:49,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:49,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:43:49,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:43:49,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:43:49,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:43:49,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 14:43:49,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:49,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:49,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:49,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:49,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:49,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 14:43:49,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 14:43:49,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-29 14:43:49,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:49,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:49,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:43:49,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 14:43:49,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-29 14:43:49,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:43:49,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:43:49,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:49,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:49,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:49,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 14:43:49,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:43:49,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:43:49,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:49,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:49,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:43:49,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:43:49,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-29 14:43:49,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:43:49,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-29 14:43:49,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:49,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:49,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:49,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 14:43:49,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:43:49,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:43:49,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:49,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:49,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:43:49,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:43:49,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:43:49,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:43:49,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 14:43:49,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:49,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:49,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:49,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:43:49,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:43:49,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:43:49,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:49,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:49,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:43:49,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 14:43:49,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:43:49,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:43:49,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 14:43:49,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:49,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:49,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:49,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:43:49,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:43:49,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 14:43:49,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:49,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:50,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:43:50,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 14:43:50,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:43:50,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 14:43:50,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 14:43:50,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [546737177] [2020-10-29 14:43:50,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:43:50,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 14:43:50,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284356978] [2020-10-29 14:43:50,024 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 14:43:50,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:43:50,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 14:43:50,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-29 14:43:50,026 INFO L87 Difference]: Start difference. First operand 154 states and 192 transitions. Second operand 8 states. [2020-10-29 14:43:51,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:43:51,912 INFO L93 Difference]: Finished difference Result 524 states and 699 transitions. [2020-10-29 14:43:51,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 14:43:51,914 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 76 [2020-10-29 14:43:51,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:43:51,923 INFO L225 Difference]: With dead ends: 524 [2020-10-29 14:43:51,923 INFO L226 Difference]: Without dead ends: 390 [2020-10-29 14:43:51,926 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2020-10-29 14:43:51,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2020-10-29 14:43:52,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 291. [2020-10-29 14:43:52,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2020-10-29 14:43:52,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 366 transitions. [2020-10-29 14:43:52,020 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 366 transitions. Word has length 76 [2020-10-29 14:43:52,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:43:52,021 INFO L481 AbstractCegarLoop]: Abstraction has 291 states and 366 transitions. [2020-10-29 14:43:52,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 14:43:52,021 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 366 transitions. [2020-10-29 14:43:52,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-29 14:43:52,030 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:43:52,031 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:43:52,031 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 14:43:52,031 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:43:52,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:43:52,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1321860749, now seen corresponding path program 1 times [2020-10-29 14:43:52,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:43:52,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1388007238] [2020-10-29 14:43:52,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:43:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:52,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:52,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:52,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:52,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:52,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:52,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:55,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:55,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:55,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:57,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:57,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 14:43:57,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 14:43:57,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 14:43:57,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:57,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:57,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 14:43:57,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 14:43:57,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-29 14:43:57,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:43:57,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:43:57,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:57,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:57,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:57,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:43:57,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:43:57,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 14:43:57,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:57,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:57,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:43:57,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:43:57,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 14:43:57,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:43:57,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:43:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:57,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:57,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:57,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:43:57,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:43:57,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:43:57,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:57,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:57,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:43:57,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:43:57,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:43:57,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:43:57,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 14:43:57,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:57,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:57,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:57,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 14:43:57,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:43:57,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:43:57,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:57,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:57,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:43:57,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:43:57,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 14:43:57,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:43:57,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-29 14:43:57,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:57,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:57,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:57,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:43:57,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:43:57,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:43:57,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:57,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:57,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:43:57,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:43:57,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:43:57,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:43:57,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 14:43:57,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:57,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:57,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:57,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:43:57,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:43:57,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:43:57,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:57,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:57,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:43:57,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:43:57,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:43:57,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:43:57,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 14:43:57,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:57,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:57,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:57,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:57,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 14:43:57,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:43:57,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 14:43:57,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:57,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:57,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:43:57,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:43:57,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-29 14:43:57,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:43:57,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:43:57,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:57,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:57,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:57,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 14:43:57,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:43:57,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:43:57,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:57,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:57,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:43:57,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:43:57,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:43:57,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 14:43:57,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-29 14:43:57,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:57,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:57,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:57,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 14:43:57,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:43:57,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:43:57,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:57,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:57,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:43:57,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:43:57,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:43:57,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:43:57,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 14:43:57,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:57,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:57,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:57,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:43:57,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:43:57,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:43:57,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:57,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:57,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:43:57,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:43:57,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:43:57,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:43:57,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 14:43:57,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:57,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:57,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:43:57,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:43:57,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:43:57,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 14:43:57,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:43:57,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:43:57,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:43:57,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:43:57,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:43:57,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:43:57,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 14:43:57,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1388007238] [2020-10-29 14:43:57,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:43:57,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 14:43:57,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543358852] [2020-10-29 14:43:57,349 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 14:43:57,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:43:57,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 14:43:57,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 14:43:57,351 INFO L87 Difference]: Start difference. First operand 291 states and 366 transitions. Second operand 7 states. [2020-10-29 14:43:59,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:43:59,025 INFO L93 Difference]: Finished difference Result 984 states and 1318 transitions. [2020-10-29 14:43:59,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 14:43:59,026 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 76 [2020-10-29 14:43:59,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:43:59,033 INFO L225 Difference]: With dead ends: 984 [2020-10-29 14:43:59,033 INFO L226 Difference]: Without dead ends: 713 [2020-10-29 14:43:59,035 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-10-29 14:43:59,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2020-10-29 14:43:59,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 563. [2020-10-29 14:43:59,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 563 states. [2020-10-29 14:43:59,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 716 transitions. [2020-10-29 14:43:59,117 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 716 transitions. Word has length 76 [2020-10-29 14:43:59,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:43:59,118 INFO L481 AbstractCegarLoop]: Abstraction has 563 states and 716 transitions. [2020-10-29 14:43:59,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 14:43:59,118 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 716 transitions. [2020-10-29 14:43:59,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-29 14:43:59,120 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:43:59,120 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:43:59,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 14:43:59,121 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:43:59,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:43:59,121 INFO L82 PathProgramCache]: Analyzing trace with hash -963793226, now seen corresponding path program 1 times [2020-10-29 14:43:59,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:43:59,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [852806992] [2020-10-29 14:43:59,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:43:59,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:43:59,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:59,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:59,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:59,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:43:59,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:00,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:00,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:00,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:00,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:00,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:00,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:04,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:04,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-29 14:44:04,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-29 14:44:04,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 14:44:04,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:04,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:04,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 14:44:04,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-29 14:44:04,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-29 14:44:04,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:04,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:44:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:04,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:04,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:04,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:44:04,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:04,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:44:04,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:04,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:04,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:04,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:04,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:04,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:04,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:44:04,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:04,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:04,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:04,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:44:04,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:04,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:44:04,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:04,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:04,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:04,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:04,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:04,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:44:04,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 14:44:04,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:04,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:04,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:04,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 14:44:04,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:04,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 14:44:04,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:04,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:04,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:04,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:04,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:04,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:04,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-29 14:44:04,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:04,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:04,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:04,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:44:04,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:04,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:44:04,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:04,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:04,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:44:04,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:04,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 14:44:04,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:04,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 14:44:04,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:04,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:04,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:04,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:44:04,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:04,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:44:04,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:04,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:04,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:44:04,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:04,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:44:04,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:04,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 14:44:04,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:04,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:04,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:04,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:04,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 14:44:04,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:44:04,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 14:44:04,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:04,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:04,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:44:04,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:44:04,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-29 14:44:04,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:04,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:44:04,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:04,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:04,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:04,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 14:44:04,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:04,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:44:04,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:04,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:04,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:44:04,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:04,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:44:04,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:44:04,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-29 14:44:04,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:04,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:04,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:04,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 14:44:04,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:04,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:44:04,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:04,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:04,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:44:04,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:04,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:44:04,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:04,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 14:44:04,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:04,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:04,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:04,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:44:04,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:04,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:44:04,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:04,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:04,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:44:04,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:04,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:44:04,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:04,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 14:44:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:04,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:04,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:04,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:04,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:44:04,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:44:04,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:44:04,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:04,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:04,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:44:04,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 14:44:04,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:44:04,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:04,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-29 14:44:04,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:04,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:04,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:04,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:44:04,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:04,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:44:04,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:04,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:04,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:44:04,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:04,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:44:04,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:04,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-29 14:44:04,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:04,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:04,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:04,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:44:04,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:04,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:44:04,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:04,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:04,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:44:04,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 14:44:04,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:44:04,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:04,475 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-29 14:44:04,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [852806992] [2020-10-29 14:44:04,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:44:04,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 14:44:04,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956549536] [2020-10-29 14:44:04,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 14:44:04,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:44:04,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 14:44:04,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-29 14:44:04,479 INFO L87 Difference]: Start difference. First operand 563 states and 716 transitions. Second operand 10 states. [2020-10-29 14:44:08,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:44:08,340 INFO L93 Difference]: Finished difference Result 1970 states and 2756 transitions. [2020-10-29 14:44:08,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-29 14:44:08,342 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 94 [2020-10-29 14:44:08,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:44:08,352 INFO L225 Difference]: With dead ends: 1970 [2020-10-29 14:44:08,353 INFO L226 Difference]: Without dead ends: 1428 [2020-10-29 14:44:08,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=244, Invalid=812, Unknown=0, NotChecked=0, Total=1056 [2020-10-29 14:44:08,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2020-10-29 14:44:08,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1006. [2020-10-29 14:44:08,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1006 states. [2020-10-29 14:44:08,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1284 transitions. [2020-10-29 14:44:08,500 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1284 transitions. Word has length 94 [2020-10-29 14:44:08,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:44:08,502 INFO L481 AbstractCegarLoop]: Abstraction has 1006 states and 1284 transitions. [2020-10-29 14:44:08,502 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 14:44:08,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1284 transitions. [2020-10-29 14:44:08,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-29 14:44:08,505 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:44:08,505 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:44:08,505 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 14:44:08,505 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:44:08,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:44:08,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1397522312, now seen corresponding path program 1 times [2020-10-29 14:44:08,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:44:08,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [493753617] [2020-10-29 14:44:08,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:44:08,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:08,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:08,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:08,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:08,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:08,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:08,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:08,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:13,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:13,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-29 14:44:13,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 14:44:13,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 14:44:13,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:13,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:13,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:44:13,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-29 14:44:13,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-29 14:44:13,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:44:13,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:44:13,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:13,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:13,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:13,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:44:13,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:13,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:44:13,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:13,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:13,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:13,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:13,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:13,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:13,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:44:13,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:13,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:13,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:13,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:44:13,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:13,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:44:13,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:13,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:13,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:13,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:13,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:13,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:44:13,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 14:44:13,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:13,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:13,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:13,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 14:44:13,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:13,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 14:44:13,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:13,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:13,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:13,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:13,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:13,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:13,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-29 14:44:13,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:13,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:13,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:13,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:44:13,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:13,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:44:13,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:13,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:13,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:13,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:13,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:13,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:13,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 14:44:13,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:13,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:13,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:13,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:44:13,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:13,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:44:13,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:13,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:13,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:13,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:13,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:13,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:44:13,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 14:44:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:13,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:13,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:13,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:13,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:13,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 14:44:13,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 14:44:13,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-29 14:44:13,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:13,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:13,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:44:13,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:13,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 14:44:13,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:13,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:44:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:13,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:13,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:13,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 14:44:13,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:13,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:44:13,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:13,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:13,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:13,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:13,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:13,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:13,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-29 14:44:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:13,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:13,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:13,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 14:44:13,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:13,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:44:13,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:13,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:13,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:44:13,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:13,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:44:13,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:44:13,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 14:44:13,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:13,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:13,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:13,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:44:13,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:13,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:44:13,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:13,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:13,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:44:13,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:13,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:44:13,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:44:13,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 14:44:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:13,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:13,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:13,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:13,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:44:13,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:44:13,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:44:13,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:13,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:13,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:44:13,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:13,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:44:13,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:13,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-29 14:44:13,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:13,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:13,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:13,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:44:13,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:13,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:44:13,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:13,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:13,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:13,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 14:44:13,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:13,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:13,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-29 14:44:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:13,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:13,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:13,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:44:13,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:13,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:44:13,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:13,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:13,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:13,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 14:44:13,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:13,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:13,823 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-29 14:44:13,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [493753617] [2020-10-29 14:44:13,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:44:13,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 14:44:13,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055204062] [2020-10-29 14:44:13,825 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 14:44:13,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:44:13,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 14:44:13,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 14:44:13,827 INFO L87 Difference]: Start difference. First operand 1006 states and 1284 transitions. Second operand 8 states. [2020-10-29 14:44:16,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:44:16,174 INFO L93 Difference]: Finished difference Result 2084 states and 2753 transitions. [2020-10-29 14:44:16,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 14:44:16,175 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 94 [2020-10-29 14:44:16,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:44:16,184 INFO L225 Difference]: With dead ends: 2084 [2020-10-29 14:44:16,185 INFO L226 Difference]: Without dead ends: 1298 [2020-10-29 14:44:16,188 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-10-29 14:44:16,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states. [2020-10-29 14:44:16,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 1002. [2020-10-29 14:44:16,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1002 states. [2020-10-29 14:44:16,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1266 transitions. [2020-10-29 14:44:16,298 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1266 transitions. Word has length 94 [2020-10-29 14:44:16,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:44:16,299 INFO L481 AbstractCegarLoop]: Abstraction has 1002 states and 1266 transitions. [2020-10-29 14:44:16,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 14:44:16,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1266 transitions. [2020-10-29 14:44:16,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-29 14:44:16,301 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:44:16,301 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:44:16,301 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 14:44:16,302 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:44:16,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:44:16,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1097817680, now seen corresponding path program 1 times [2020-10-29 14:44:16,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:44:16,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [382546436] [2020-10-29 14:44:16,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:44:16,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:16,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:16,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:16,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:16,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:16,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:16,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:19,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:19,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 14:44:19,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 14:44:19,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2728 [2020-10-29 14:44:19,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:19,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:19,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 14:44:19,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 14:44:19,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 14:44:19,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:19,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:44:19,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:19,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:19,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:19,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:44:19,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:19,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 14:44:19,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:19,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:19,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:44:19,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:19,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 14:44:19,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:19,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:44:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:19,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:19,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:19,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:44:19,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:19,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:44:19,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:19,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:19,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:44:19,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:19,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:44:19,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:44:19,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 14:44:19,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:19,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:19,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:19,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 14:44:19,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:19,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:44:19,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:19,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:19,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:44:19,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:19,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 14:44:19,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:44:19,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-29 14:44:19,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:19,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:19,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:19,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:44:19,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:19,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:44:19,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:19,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:19,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:44:19,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:19,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:44:19,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:44:19,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 14:44:19,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:19,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:19,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:19,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:44:19,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:19,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 14:44:19,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:19,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:19,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:44:19,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:44:19,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 14:44:19,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:19,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 14:44:19,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:19,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:19,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:19,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:19,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 14:44:19,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:44:19,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 14:44:19,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:19,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:19,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:44:19,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 14:44:19,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:44:19,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:19,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:44:19,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:19,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:19,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:19,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 14:44:19,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:19,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 14:44:19,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:19,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:19,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:19,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:19,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:19,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:19,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-29 14:44:19,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:19,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:19,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:19,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 14:44:19,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:19,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 14:44:19,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:19,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:19,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:44:19,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:19,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:44:19,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:19,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 14:44:19,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:19,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:19,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:19,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:44:19,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:19,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:44:19,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:19,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:19,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:19,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 14:44:19,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:19,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:19,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 14:44:19,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:19,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:19,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:19,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 14:44:19,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:19,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:44:19,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:19,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:19,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:19,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 14:44:19,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:19,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:19,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 14:44:19,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:19,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:19,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:19,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:44:19,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:19,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:44:19,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:19,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:19,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:19,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 14:44:19,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:19,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:19,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 14:44:19,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:19,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:19,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:19,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 14:44:19,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:19,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:44:19,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:19,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:19,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:19,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 14:44:19,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:19,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:19,496 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-29 14:44:19,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [382546436] [2020-10-29 14:44:19,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:44:19,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-29 14:44:19,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245399506] [2020-10-29 14:44:19,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 14:44:19,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:44:19,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 14:44:19,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-10-29 14:44:19,500 INFO L87 Difference]: Start difference. First operand 1002 states and 1266 transitions. Second operand 15 states. [2020-10-29 14:44:21,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:44:21,741 INFO L93 Difference]: Finished difference Result 2213 states and 2951 transitions. [2020-10-29 14:44:21,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 14:44:21,742 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 96 [2020-10-29 14:44:21,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:44:21,752 INFO L225 Difference]: With dead ends: 2213 [2020-10-29 14:44:21,752 INFO L226 Difference]: Without dead ends: 1234 [2020-10-29 14:44:21,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=203, Invalid=553, Unknown=0, NotChecked=0, Total=756 [2020-10-29 14:44:21,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1234 states. [2020-10-29 14:44:21,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1234 to 1012. [2020-10-29 14:44:21,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1012 states. [2020-10-29 14:44:21,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1238 transitions. [2020-10-29 14:44:21,884 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1238 transitions. Word has length 96 [2020-10-29 14:44:21,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:44:21,885 INFO L481 AbstractCegarLoop]: Abstraction has 1012 states and 1238 transitions. [2020-10-29 14:44:21,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 14:44:21,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1238 transitions. [2020-10-29 14:44:21,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-29 14:44:21,887 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:44:21,888 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:44:21,888 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 14:44:21,888 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:44:21,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:44:21,889 INFO L82 PathProgramCache]: Analyzing trace with hash -310908242, now seen corresponding path program 1 times [2020-10-29 14:44:21,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:44:21,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [482456664] [2020-10-29 14:44:21,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:44:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:21,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:21,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:22,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:22,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:22,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:22,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 14:44:22,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 14:44:22,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 573 [2020-10-29 14:44:22,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:22,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:22,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 14:44:22,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 14:44:22,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-29 14:44:22,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:22,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:44:22,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:22,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:22,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:22,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:44:22,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:22,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 14:44:22,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:22,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:22,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:44:22,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:22,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 14:44:22,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:22,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:44:22,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:22,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:22,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:22,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:44:22,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:22,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:44:22,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:22,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:22,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:44:22,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:22,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:44:22,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:22,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 14:44:22,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:22,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:22,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:22,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 14:44:22,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:22,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:44:22,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:22,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:22,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:44:22,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:22,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 14:44:22,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:22,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-29 14:44:22,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:22,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:22,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:22,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:44:22,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:22,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:44:22,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:22,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:22,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:44:22,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:22,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:44:22,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:22,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 14:44:22,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:22,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:22,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:22,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:44:22,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:22,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 14:44:22,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:22,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:22,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:44:22,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:44:22,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 14:44:22,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:22,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 14:44:22,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:22,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:22,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:22,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 14:44:22,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:22,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:44:22,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:22,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:22,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:22,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-29 14:44:22,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:22,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:22,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:44:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:22,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:22,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:22,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 14:44:22,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:22,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:44:22,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:22,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:22,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:22,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:22,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:22,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:22,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-29 14:44:22,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:22,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:22,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:22,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 14:44:22,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:22,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:44:22,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:22,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:22,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:22,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:22,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:22,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:22,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 14:44:22,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:22,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:22,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:22,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:44:22,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:22,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:44:22,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:22,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:22,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:22,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 14:44:22,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:22,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:22,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 14:44:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:22,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:22,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:22,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 14:44:22,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:22,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:44:22,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:22,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:22,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:22,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 14:44:22,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:22,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:22,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 14:44:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:22,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:22,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:22,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:44:22,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:22,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:44:22,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:22,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:22,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:22,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 14:44:22,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:22,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:22,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 14:44:22,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:22,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:22,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:22,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 14:44:22,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:22,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:44:22,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:22,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:22,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:22,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 14:44:22,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:22,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:22,733 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-29 14:44:22,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [482456664] [2020-10-29 14:44:22,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:44:22,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 14:44:22,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683090818] [2020-10-29 14:44:22,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 14:44:22,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:44:22,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 14:44:22,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-29 14:44:22,736 INFO L87 Difference]: Start difference. First operand 1012 states and 1238 transitions. Second operand 10 states. [2020-10-29 14:44:25,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:44:25,065 INFO L93 Difference]: Finished difference Result 3158 states and 3947 transitions. [2020-10-29 14:44:25,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 14:44:25,067 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 96 [2020-10-29 14:44:25,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:44:25,081 INFO L225 Difference]: With dead ends: 3158 [2020-10-29 14:44:25,081 INFO L226 Difference]: Without dead ends: 2169 [2020-10-29 14:44:25,086 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=146, Invalid=360, Unknown=0, NotChecked=0, Total=506 [2020-10-29 14:44:25,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2169 states. [2020-10-29 14:44:25,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2169 to 1969. [2020-10-29 14:44:25,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1969 states. [2020-10-29 14:44:25,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2361 transitions. [2020-10-29 14:44:25,290 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2361 transitions. Word has length 96 [2020-10-29 14:44:25,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:44:25,290 INFO L481 AbstractCegarLoop]: Abstraction has 1969 states and 2361 transitions. [2020-10-29 14:44:25,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 14:44:25,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2361 transitions. [2020-10-29 14:44:25,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-29 14:44:25,292 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:44:25,292 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:44:25,292 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 14:44:25,295 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:44:25,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:44:25,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1070107826, now seen corresponding path program 1 times [2020-10-29 14:44:25,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:44:25,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [46782619] [2020-10-29 14:44:25,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:44:25,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:25,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:25,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:25,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:25,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:25,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 14:44:25,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 14:44:25,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-29 14:44:25,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:25,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:25,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:44:25,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 14:44:25,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 14:44:25,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:25,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:44:25,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:25,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:25,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:25,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:44:25,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:25,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:44:25,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:25,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:25,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:25,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:25,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:25,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 14:44:25,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:44:25,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:25,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:25,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:25,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:44:25,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:25,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:44:25,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:25,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:25,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:44:25,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:25,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 14:44:25,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:25,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 14:44:25,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:25,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:25,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:25,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 14:44:25,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:25,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:44:25,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:25,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:25,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:44:25,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:25,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 14:44:25,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:25,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-29 14:44:25,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:25,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:25,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:25,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:44:25,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:25,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:44:25,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:25,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:25,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:44:25,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 14:44:25,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:44:25,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:25,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 14:44:25,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:25,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:25,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:25,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:44:25,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:25,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:44:25,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:25,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:25,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:25,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 14:44:25,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:25,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:44:25,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 14:44:25,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:25,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:25,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:25,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 14:44:25,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:25,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:44:25,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:25,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:25,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:25,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-29 14:44:25,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:25,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:44:25,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:44:25,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:25,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:25,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:25,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 14:44:25,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:25,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:44:25,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:25,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:25,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:25,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:25,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:25,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:44:25,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-29 14:44:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:25,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:25,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:25,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 14:44:25,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:25,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:44:25,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:25,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:25,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:25,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:25,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:25,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:44:25,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 14:44:25,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:25,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:25,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:25,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:44:25,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:25,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:44:25,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:25,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:25,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:25,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 14:44:25,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:25,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:25,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 14:44:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:25,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:25,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:25,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 14:44:25,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:25,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:44:25,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:25,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:25,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:25,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 14:44:25,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:25,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:25,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 14:44:25,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:25,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:25,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:25,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:44:25,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:25,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:44:25,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:25,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:25,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:25,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 14:44:25,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:25,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:44:25,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 14:44:25,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:25,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:25,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:25,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 14:44:25,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:25,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:44:25,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:25,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:25,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:25,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 14:44:25,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:25,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:44:25,727 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-29 14:44:25,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [46782619] [2020-10-29 14:44:25,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:44:25,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-29 14:44:25,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529082294] [2020-10-29 14:44:25,729 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 14:44:25,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:44:25,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 14:44:25,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-29 14:44:25,731 INFO L87 Difference]: Start difference. First operand 1969 states and 2361 transitions. Second operand 9 states. [2020-10-29 14:44:27,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:44:27,258 INFO L93 Difference]: Finished difference Result 3680 states and 4443 transitions. [2020-10-29 14:44:27,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 14:44:27,259 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2020-10-29 14:44:27,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:44:27,270 INFO L225 Difference]: With dead ends: 3680 [2020-10-29 14:44:27,270 INFO L226 Difference]: Without dead ends: 1731 [2020-10-29 14:44:27,277 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2020-10-29 14:44:27,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2020-10-29 14:44:27,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 1583. [2020-10-29 14:44:27,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1583 states. [2020-10-29 14:44:27,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 1903 transitions. [2020-10-29 14:44:27,470 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 1903 transitions. Word has length 96 [2020-10-29 14:44:27,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:44:27,470 INFO L481 AbstractCegarLoop]: Abstraction has 1583 states and 1903 transitions. [2020-10-29 14:44:27,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 14:44:27,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 1903 transitions. [2020-10-29 14:44:27,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-29 14:44:27,472 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:44:27,472 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:44:27,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 14:44:27,472 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:44:27,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:44:27,473 INFO L82 PathProgramCache]: Analyzing trace with hash 824465844, now seen corresponding path program 1 times [2020-10-29 14:44:27,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:44:27,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [631880514] [2020-10-29 14:44:27,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:44:27,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:27,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:27,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:27,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 14:44:27,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:27,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 14:44:27,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:27,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:27,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:44:27,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-29 14:44:27,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 14:44:27,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:27,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:44:27,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:27,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:27,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:27,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:44:27,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:27,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:44:27,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:27,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:27,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:27,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:27,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:27,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:27,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:44:27,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:27,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:27,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:27,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:44:27,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:27,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:44:27,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:27,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:27,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:27,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:27,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:27,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:27,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 14:44:27,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:27,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:27,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:27,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 14:44:27,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:27,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 14:44:27,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:27,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:27,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:27,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:27,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:27,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:44:27,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-29 14:44:27,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:27,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:27,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:27,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:44:27,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:27,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:44:27,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:27,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:27,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:27,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:27,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:27,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:27,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 14:44:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:27,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:27,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:27,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:44:27,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:27,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:44:27,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:27,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:27,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:27,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:27,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:27,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:27,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 14:44:27,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:27,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:27,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:27,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 14:44:27,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:27,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:44:27,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:27,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:27,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:27,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:27,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:27,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:44:27,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 14:44:27,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:27,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:27,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:27,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 14:44:27,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:27,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:44:27,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:27,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:27,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:27,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:27,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:27,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:27,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-29 14:44:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:27,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:27,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:27,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 14:44:27,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:27,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:44:27,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:27,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:27,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:27,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:27,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:27,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:44:27,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 14:44:27,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:27,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:27,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:27,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:44:27,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:27,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:44:27,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:27,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:27,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:27,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:27,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:27,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:44:27,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 14:44:27,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:27,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:27,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:27,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:44:27,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:27,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:44:27,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:27,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:27,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:44:27,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:27,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:44:27,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:44:27,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 14:44:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:27,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:27,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:27,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:44:27,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:27,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:44:27,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:27,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:27,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:44:27,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:27,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 14:44:27,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:44:27,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 14:44:27,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:44:27,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:44:27,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:44:27,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:44:27,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:44:27,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:44:27,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:44:27,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:44:27,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:44:27,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:44:27,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:44:27,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:44:27,759 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 14:44:27,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [631880514] [2020-10-29 14:44:27,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:44:27,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 14:44:27,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742322462] [2020-10-29 14:44:27,760 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 14:44:27,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:44:27,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 14:44:27,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 14:44:27,761 INFO L87 Difference]: Start difference. First operand 1583 states and 1903 transitions. Second operand 8 states. [2020-10-29 14:44:29,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:44:29,990 INFO L93 Difference]: Finished difference Result 4523 states and 5527 transitions. [2020-10-29 14:44:29,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 14:44:29,991 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 96 [2020-10-29 14:44:29,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:44:30,004 INFO L225 Difference]: With dead ends: 4523 [2020-10-29 14:44:30,004 INFO L226 Difference]: Without dead ends: 2225 [2020-10-29 14:44:30,012 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-10-29 14:44:30,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2225 states. [2020-10-29 14:44:30,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2225 to 2039. [2020-10-29 14:44:30,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2039 states. [2020-10-29 14:44:30,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2039 states to 2039 states and 2416 transitions. [2020-10-29 14:44:30,220 INFO L78 Accepts]: Start accepts. Automaton has 2039 states and 2416 transitions. Word has length 96 [2020-10-29 14:44:30,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:44:30,220 INFO L481 AbstractCegarLoop]: Abstraction has 2039 states and 2416 transitions. [2020-10-29 14:44:30,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 14:44:30,221 INFO L276 IsEmpty]: Start isEmpty. Operand 2039 states and 2416 transitions. [2020-10-29 14:44:30,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-29 14:44:30,223 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:44:30,223 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:44:30,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 14:44:30,223 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:44:30,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:44:30,224 INFO L82 PathProgramCache]: Analyzing trace with hash 52839137, now seen corresponding path program 1 times [2020-10-29 14:44:30,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:44:30,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [385864024] [2020-10-29 14:44:30,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:44:30,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 14:44:30,242 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 14:44:30,242 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 14:44:30,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 14:44:30,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 02:44:30 BoogieIcfgContainer [2020-10-29 14:44:30,275 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 14:44:30,277 INFO L168 Benchmark]: Toolchain (without parser) took 56396.12 ms. Allocated memory was 125.8 MB in the beginning and 846.2 MB in the end (delta: 720.4 MB). Free memory was 101.3 MB in the beginning and 701.3 MB in the end (delta: -600.0 MB). Peak memory consumption was 121.9 MB. Max. memory is 8.0 GB. [2020-10-29 14:44:30,278 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 125.8 MB. Free memory is still 86.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 14:44:30,278 INFO L168 Benchmark]: CACSL2BoogieTranslator took 357.48 ms. Allocated memory is still 125.8 MB. Free memory was 100.8 MB in the beginning and 87.7 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-10-29 14:44:30,279 INFO L168 Benchmark]: Boogie Preprocessor took 98.46 ms. Allocated memory is still 125.8 MB. Free memory was 87.7 MB in the beginning and 85.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-29 14:44:30,280 INFO L168 Benchmark]: RCFGBuilder took 816.68 ms. Allocated memory was 125.8 MB in the beginning and 162.5 MB in the end (delta: 36.7 MB). Free memory was 85.8 MB in the beginning and 128.7 MB in the end (delta: -43.0 MB). Peak memory consumption was 18.8 MB. Max. memory is 8.0 GB. [2020-10-29 14:44:30,281 INFO L168 Benchmark]: TraceAbstraction took 55111.24 ms. Allocated memory was 162.5 MB in the beginning and 846.2 MB in the end (delta: 683.7 MB). Free memory was 128.2 MB in the beginning and 701.9 MB in the end (delta: -573.7 MB). Peak memory consumption was 109.4 MB. Max. memory is 8.0 GB. [2020-10-29 14:44:30,284 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 125.8 MB. Free memory is still 86.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 357.48 ms. Allocated memory is still 125.8 MB. Free memory was 100.8 MB in the beginning and 87.7 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 98.46 ms. Allocated memory is still 125.8 MB. Free memory was 87.7 MB in the beginning and 85.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 816.68 ms. Allocated memory was 125.8 MB in the beginning and 162.5 MB in the end (delta: 36.7 MB). Free memory was 85.8 MB in the beginning and 128.7 MB in the end (delta: -43.0 MB). Peak memory consumption was 18.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 55111.24 ms. Allocated memory was 162.5 MB in the beginning and 846.2 MB in the end (delta: 683.7 MB). Free memory was 128.2 MB in the beginning and 701.9 MB in the end (delta: -573.7 MB). Peak memory consumption was 109.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int m_pc = 0; [L18] int t1_pc = 0; [L19] int m_st ; [L20] int t1_st ; [L21] int m_i ; [L22] int t1_i ; [L23] int M_E = 2; [L24] int T1_E = 2; [L25] int E_1 = 2; [L441] int __retres1 ; [L445] CALL init_model() [L356] m_i = 1 [L357] t1_i = 1 [L445] RET init_model() [L446] CALL start_simulation() [L382] int kernel_st ; [L383] int tmp ; [L384] int tmp___0 ; [L388] kernel_st = 0 [L389] FCALL update_channels() [L390] CALL init_threads() [L153] COND TRUE m_i == 1 [L154] m_st = 0 [L158] COND TRUE t1_i == 1 [L159] t1_st = 0 [L390] RET init_threads() [L391] CALL fire_delta_events() [L242] COND FALSE !(M_E == 0) [L247] COND FALSE !(T1_E == 0) [L252] COND FALSE !(E_1 == 0) [L391] RET fire_delta_events() [L392] CALL activate_threads() [L285] int tmp ; [L286] int tmp___0 ; [L290] CALL, EXPR is_master_triggered() [L104] int __retres1 ; [L107] COND FALSE !(m_pc == 1) [L117] __retres1 = 0 [L119] return (__retres1); [L290] RET, EXPR is_master_triggered() [L290] tmp = is_master_triggered() [L292] COND FALSE !(\read(tmp)) [L298] CALL, EXPR is_transmit1_triggered() [L123] int __retres1 ; [L126] COND FALSE !(t1_pc == 1) [L136] __retres1 = 0 [L138] return (__retres1); [L298] RET, EXPR is_transmit1_triggered() [L298] tmp___0 = is_transmit1_triggered() [L300] COND FALSE !(\read(tmp___0)) [L392] RET activate_threads() [L393] CALL reset_delta_events() [L265] COND FALSE !(M_E == 1) [L270] COND FALSE !(T1_E == 1) [L275] COND FALSE !(E_1 == 1) [L393] RET reset_delta_events() [L396] COND TRUE 1 [L399] kernel_st = 1 [L400] CALL eval() [L189] int tmp ; [L193] COND TRUE 1 [L196] CALL, EXPR exists_runnable_thread() [L168] int __retres1 ; [L171] COND TRUE m_st == 0 [L172] __retres1 = 1 [L184] return (__retres1); [L196] RET, EXPR exists_runnable_thread() [L196] tmp = exists_runnable_thread() [L198] COND TRUE \read(tmp) [L203] COND TRUE m_st == 0 [L204] int tmp_ndt_1; [L205] tmp_ndt_1 = __VERIFIER_nondet_int() [L206] COND FALSE !(\read(tmp_ndt_1)) [L217] COND TRUE t1_st == 0 [L218] int tmp_ndt_2; [L219] tmp_ndt_2 = __VERIFIER_nondet_int() [L220] COND TRUE \read(tmp_ndt_2) [L222] t1_st = 1 [L223] CALL transmit1() [L74] COND TRUE t1_pc == 0 [L85] COND TRUE 1 [L87] t1_pc = 1 [L88] t1_st = 2 [L223] RET transmit1() [L193] COND TRUE 1 [L196] CALL, EXPR exists_runnable_thread() [L168] int __retres1 ; [L171] COND TRUE m_st == 0 [L172] __retres1 = 1 [L184] return (__retres1); [L196] RET, EXPR exists_runnable_thread() [L196] tmp = exists_runnable_thread() [L198] COND TRUE \read(tmp) [L203] COND TRUE m_st == 0 [L204] int tmp_ndt_1; [L205] tmp_ndt_1 = __VERIFIER_nondet_int() [L206] COND TRUE \read(tmp_ndt_1) [L208] m_st = 1 [L209] CALL master() [L33] COND TRUE m_pc == 0 [L44] COND TRUE 1 [L47] E_1 = 1 [L48] CALL immediate_notify() [L314] CALL activate_threads() [L285] int tmp ; [L286] int tmp___0 ; [L290] CALL, EXPR is_master_triggered() [L104] int __retres1 ; [L107] COND FALSE !(m_pc == 1) [L117] __retres1 = 0 [L119] return (__retres1); [L290] RET, EXPR is_master_triggered() [L290] tmp = is_master_triggered() [L292] COND FALSE !(\read(tmp)) [L298] CALL, EXPR is_transmit1_triggered() [L123] int __retres1 ; [L126] COND TRUE t1_pc == 1 [L127] COND TRUE E_1 == 1 [L128] __retres1 = 1 [L138] return (__retres1); [L298] RET, EXPR is_transmit1_triggered() [L298] tmp___0 = is_transmit1_triggered() [L300] COND TRUE \read(tmp___0) [L301] t1_st = 0 [L314] RET activate_threads() [L48] RET immediate_notify() [L49] E_1 = 2 [L52] COND TRUE 1 [L54] m_pc = 1 [L55] m_st = 2 [L209] RET master() [L217] COND TRUE t1_st == 0 [L218] int tmp_ndt_2; [L219] tmp_ndt_2 = __VERIFIER_nondet_int() [L220] COND TRUE \read(tmp_ndt_2) [L222] t1_st = 1 [L223] CALL transmit1() [L74] COND FALSE !(t1_pc == 0) [L77] COND TRUE t1_pc == 1 [L93] CALL error() [L13] CALL reach_error() [L3] __assert_fail("0", "transmitter.01.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 22 procedures, 143 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 55.0s, OverallIterations: 10, TraceHistogramMax: 2, AutomataDifference: 21.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1597 SDtfs, 5374 SDslu, 346 SDs, 0 SdLazy, 9592 SolverSat, 3305 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 428 GetRequests, 248 SyntacticMatches, 1 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 791 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2039occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 1845 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 31.7s InterpolantComputationTime, 930 NumberOfCodeBlocks, 930 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 791 ConstructedInterpolants, 0 QuantifiedInterpolants, 180971 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 88/88 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...