/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:12:46,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:12:46,177 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:12:46,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:12:46,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:12:46,205 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:12:46,207 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:12:46,209 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:12:46,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:12:46,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:12:46,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:12:46,213 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:12:46,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:12:46,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:12:46,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:12:46,218 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:12:46,218 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:12:46,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:12:46,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:12:46,224 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:12:46,226 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:12:46,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:12:46,228 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:12:46,229 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:12:46,232 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:12:46,232 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:12:46,233 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:12:46,234 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:12:46,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:12:46,235 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:12:46,236 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:12:46,237 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:12:46,238 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:12:46,239 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:12:46,240 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:12:46,240 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:12:46,241 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:12:46,241 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:12:46,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:12:46,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:12:46,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:12:46,244 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 [2020-09-25 09:12:46,271 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:12:46,272 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:12:46,273 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:12:46,273 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:12:46,274 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:12:46,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:12:46,274 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:12:46,274 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:12:46,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:12:46,275 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:12:46,278 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:12:46,278 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:12:46,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:12:46,278 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:12:46,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:12:46,279 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:12:46,279 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:12:46,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:12:46,279 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:12:46,280 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:12:46,280 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:12:46,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:12:46,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:12:46,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:12:46,281 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:12:46,284 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:12:46,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:12:46,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:12:46,285 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:12:46,285 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement 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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 09:12:46,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:12:46,782 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:12:46,787 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:12:46,788 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:12:46,789 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:12:46,790 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.01.cil.c [2020-09-25 09:12:46,887 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/28b62cda3/193321e5e1124ae0b4999856c0fa4a19/FLAG6f540167c [2020-09-25 09:12:47,431 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:12:47,432 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.01.cil.c [2020-09-25 09:12:47,450 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/28b62cda3/193321e5e1124ae0b4999856c0fa4a19/FLAG6f540167c [2020-09-25 09:12:47,783 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/28b62cda3/193321e5e1124ae0b4999856c0fa4a19 [2020-09-25 09:12:47,799 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:12:47,806 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:12:47,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:12:47,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:12:47,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:12:47,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:12:47" (1/1) ... [2020-09-25 09:12:47,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e85302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:47, skipping insertion in model container [2020-09-25 09:12:47,821 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:12:47" (1/1) ... [2020-09-25 09:12:47,831 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:12:47,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:12:48,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:12:48,136 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:12:48,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:12:48,301 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:12:48,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:48 WrapperNode [2020-09-25 09:12:48,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:12:48,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:12:48,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:12:48,303 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:12:48,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:48" (1/1) ... [2020-09-25 09:12:48,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:48" (1/1) ... [2020-09-25 09:12:48,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:48" (1/1) ... [2020-09-25 09:12:48,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:48" (1/1) ... [2020-09-25 09:12:48,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:48" (1/1) ... [2020-09-25 09:12:48,348 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:48" (1/1) ... [2020-09-25 09:12:48,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:48" (1/1) ... [2020-09-25 09:12:48,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:12:48,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:12:48,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:12:48,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:12:48,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:48" (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 [2020-09-25 09:12:48,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:12:48,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:12:48,433 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-09-25 09:12:48,433 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-09-25 09:12:48,433 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-09-25 09:12:48,433 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-09-25 09:12:48,433 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-09-25 09:12:48,434 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-09-25 09:12:48,434 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-09-25 09:12:48,434 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-09-25 09:12:48,434 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-09-25 09:12:48,435 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-09-25 09:12:48,435 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-09-25 09:12:48,435 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-09-25 09:12:48,435 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-09-25 09:12:48,435 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-09-25 09:12:48,435 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-09-25 09:12:48,435 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-09-25 09:12:48,436 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-09-25 09:12:48,436 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-09-25 09:12:48,436 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:12:48,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:12:48,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:12:48,437 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-09-25 09:12:48,437 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-09-25 09:12:48,437 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-09-25 09:12:48,437 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-09-25 09:12:48,437 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-09-25 09:12:48,438 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-09-25 09:12:48,438 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-09-25 09:12:48,438 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-09-25 09:12:48,438 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-09-25 09:12:48,438 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-09-25 09:12:48,438 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-09-25 09:12:48,438 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-09-25 09:12:48,439 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-09-25 09:12:48,439 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-09-25 09:12:48,439 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-09-25 09:12:48,439 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-09-25 09:12:48,439 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-09-25 09:12:48,439 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-09-25 09:12:48,440 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:12:48,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:12:48,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:12:49,072 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:12:49,073 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 09:12:49,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:12:49 BoogieIcfgContainer [2020-09-25 09:12:49,080 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:12:49,081 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:12:49,081 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:12:49,084 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:12:49,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:12:47" (1/3) ... [2020-09-25 09:12:49,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67ad5ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:12:49, skipping insertion in model container [2020-09-25 09:12:49,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:48" (2/3) ... [2020-09-25 09:12:49,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67ad5ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:12:49, skipping insertion in model container [2020-09-25 09:12:49,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:12:49" (3/3) ... [2020-09-25 09:12:49,089 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.01.cil.c [2020-09-25 09:12:49,101 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:12:49,112 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:12:49,131 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:12:49,160 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:12:49,160 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:12:49,160 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:12:49,161 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:12:49,161 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:12:49,161 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:12:49,161 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:12:49,161 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:12:49,188 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states. [2020-09-25 09:12:49,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-09-25 09:12:49,203 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:12:49,204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:12:49,205 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:12:49,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:12:49,214 INFO L82 PathProgramCache]: Analyzing trace with hash 486796623, now seen corresponding path program 1 times [2020-09-25 09:12:49,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:12:49,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [632241294] [2020-09-25 09:12:49,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:12:49,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:49,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:49,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:50,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:50,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:50,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:52,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:52,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-09-25 09:12:52,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 09:12:52,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2778 [2020-09-25 09:12:52,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:52,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:52,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:12:52,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 109 [2020-09-25 09:12:52,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 09:12:52,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 09:12:52,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:12:52,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:52,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:52,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:52,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 09:12:52,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:52,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:12:52,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:52,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:52,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:12:52,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:52,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:12:52,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:52,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 09:12:52,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:52,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:52,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:52,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:12:52,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:52,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:12:52,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:52,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:52,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:12:52,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:52,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:12:52,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:52,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 09:12:52,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:52,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:52,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:52,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:12:52,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:52,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:12:52,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:52,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:52,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:12:52,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:52,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:12:52,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:52,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 09:12:52,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:52,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:52,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:52,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:12:52,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:52,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:12:52,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:52,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:52,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:12:52,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:52,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:12:52,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:52,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 09:12:52,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:52,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:52,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:52,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:12:52,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:52,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:12:52,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:52,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:52,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:12:52,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:52,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:12:52,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:52,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 09:12:52,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:52,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:52,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:52,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 09:12:52,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:52,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:12:52,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:52,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:52,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:12:52,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:52,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:12:52,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:52,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:12:52,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:52,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:52,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:52,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:12:52,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:52,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:12:52,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:52,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:52,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:12:52,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:52,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:12:52,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:52,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-25 09:12:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:52,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:52,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:52,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:12:52,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:52,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:12:52,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:52,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:52,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:12:52,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:52,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:12:52,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:52,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-25 09:12:52,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:52,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:52,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:52,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:12:52,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:52,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:12:52,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:52,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:52,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:12:52,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:52,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:12:52,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:52,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-25 09:12:52,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:52,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:52,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:52,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:12:52,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:52,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:12:52,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:52,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:52,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:12:52,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:52,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 09:12:52,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:52,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:12:52,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [632241294] [2020-09-25 09:12:52,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:12:52,528 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 09:12:52,529 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592094799] [2020-09-25 09:12:52,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:12:52,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:12:52,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:12:52,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:12:52,560 INFO L87 Difference]: Start difference. First operand 201 states. Second operand 7 states. [2020-09-25 09:12:54,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:12:54,666 INFO L93 Difference]: Finished difference Result 708 states and 984 transitions. [2020-09-25 09:12:54,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 09:12:54,669 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 102 [2020-09-25 09:12:54,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:12:54,709 INFO L225 Difference]: With dead ends: 708 [2020-09-25 09:12:54,709 INFO L226 Difference]: Without dead ends: 516 [2020-09-25 09:12:54,721 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2020-09-25 09:12:54,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2020-09-25 09:12:54,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 347. [2020-09-25 09:12:54,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2020-09-25 09:12:54,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 433 transitions. [2020-09-25 09:12:54,858 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 433 transitions. Word has length 102 [2020-09-25 09:12:54,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:12:54,862 INFO L479 AbstractCegarLoop]: Abstraction has 347 states and 433 transitions. [2020-09-25 09:12:54,862 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:12:54,862 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 433 transitions. [2020-09-25 09:12:54,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-09-25 09:12:54,871 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:12:54,871 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:12:54,874 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:12:54,874 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:12:54,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:12:54,877 INFO L82 PathProgramCache]: Analyzing trace with hash -2043764254, now seen corresponding path program 1 times [2020-09-25 09:12:54,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:12:54,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2103846807] [2020-09-25 09:12:54,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:12:54,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:54,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:55,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:55,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:55,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:56,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:56,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-09-25 09:12:56,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:12:56,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1434 [2020-09-25 09:12:56,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:56,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:56,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:12:56,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 09:12:56,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 09:12:56,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:56,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:12:56,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:56,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:56,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:56,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 09:12:56,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:56,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:12:56,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:56,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:56,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:12:56,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:56,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:12:56,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:56,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 09:12:56,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:56,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:56,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:56,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:12:56,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:56,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:12:56,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:56,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:56,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:12:56,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:56,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 09:12:56,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:56,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 09:12:56,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:56,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:56,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:56,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:12:56,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:56,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:12:56,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:56,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:56,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:12:56,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:56,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:12:56,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:56,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 09:12:56,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:56,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:56,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:56,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:12:56,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:56,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:12:56,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:56,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:56,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:12:56,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:12:56,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:12:56,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:56,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 09:12:56,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:56,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:56,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:56,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:12:56,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:56,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:12:56,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:56,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:56,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:12:56,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:12:56,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:12:56,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:56,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 09:12:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:56,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:56,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:56,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 09:12:56,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:56,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:12:56,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:56,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:56,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:12:56,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-25 09:12:56,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:12:56,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:56,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:12:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:56,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:56,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:56,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:12:56,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:56,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:12:56,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:56,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:56,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:12:56,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:56,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:12:56,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:56,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-25 09:12:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:56,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:56,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:56,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:12:56,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:56,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:12:56,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:56,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:56,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:12:56,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:56,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:12:56,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:56,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-25 09:12:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:56,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:56,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:56,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:12:56,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:56,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:12:56,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:56,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:56,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:12:56,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:12:56,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:12:56,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:56,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-25 09:12:56,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:56,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:56,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:56,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 09:12:56,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:56,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:12:56,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:56,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:56,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:12:56,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 09:12:56,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:12:56,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:56,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:12:56,545 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2103846807] [2020-09-25 09:12:56,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:12:56,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:12:56,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286767418] [2020-09-25 09:12:56,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:12:56,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:12:56,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:12:56,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:12:56,549 INFO L87 Difference]: Start difference. First operand 347 states and 433 transitions. Second operand 8 states. [2020-09-25 09:12:57,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:12:57,868 INFO L93 Difference]: Finished difference Result 815 states and 1061 transitions. [2020-09-25 09:12:57,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 09:12:57,870 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 103 [2020-09-25 09:12:57,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:12:57,875 INFO L225 Difference]: With dead ends: 815 [2020-09-25 09:12:57,876 INFO L226 Difference]: Without dead ends: 503 [2020-09-25 09:12:57,878 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-09-25 09:12:57,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2020-09-25 09:12:57,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 338. [2020-09-25 09:12:57,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-09-25 09:12:57,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 418 transitions. [2020-09-25 09:12:57,927 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 418 transitions. Word has length 103 [2020-09-25 09:12:57,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:12:57,928 INFO L479 AbstractCegarLoop]: Abstraction has 338 states and 418 transitions. [2020-09-25 09:12:57,928 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:12:57,928 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 418 transitions. [2020-09-25 09:12:57,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-25 09:12:57,930 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:12:57,930 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:12:57,931 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:12:57,931 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:12:57,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:12:57,931 INFO L82 PathProgramCache]: Analyzing trace with hash -891577735, now seen corresponding path program 1 times [2020-09-25 09:12:57,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:12:57,932 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [472377365] [2020-09-25 09:12:57,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:12:57,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:57,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:58,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:58,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:58,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:58,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-09-25 09:12:58,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:12:58,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 958 [2020-09-25 09:12:58,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:58,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:58,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 09:12:58,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 09:12:58,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-09-25 09:12:58,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:58,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:12:58,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:58,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:59,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:59,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 09:12:59,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:59,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 09:12:59,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:59,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:59,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:12:59,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:59,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 09:12:59,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:59,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 09:12:59,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:59,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:59,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:59,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:12:59,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:59,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:12:59,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:59,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:59,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:12:59,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:59,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:12:59,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:12:59,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 09:12:59,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:59,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:59,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:59,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:12:59,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:59,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:12:59,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:59,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:59,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:12:59,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:59,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:12:59,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:12:59,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 09:12:59,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:59,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:59,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:59,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:12:59,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:59,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:12:59,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:59,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:59,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:12:59,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:59,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:12:59,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:12:59,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 09:12:59,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:59,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:59,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:59,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:12:59,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:59,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:12:59,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:59,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:59,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:12:59,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:59,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:12:59,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:59,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 09:12:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:59,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:59,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:59,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 09:12:59,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:59,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 09:12:59,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:59,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:59,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:12:59,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:59,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 09:12:59,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:59,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:12:59,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:59,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:59,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:59,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:12:59,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:59,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:12:59,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:59,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:59,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:12:59,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:59,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:12:59,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:59,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-25 09:12:59,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:59,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:59,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:59,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:12:59,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:59,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:12:59,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:59,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:59,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:12:59,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:59,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:12:59,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:59,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-25 09:12:59,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:59,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:59,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:59,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:12:59,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:59,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:12:59,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:59,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:59,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:12:59,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:59,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:12:59,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:59,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-25 09:12:59,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:59,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:59,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:59,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:12:59,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:59,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:12:59,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:59,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:59,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:12:59,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:59,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:12:59,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:12:59,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:12:59,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [472377365] [2020-09-25 09:12:59,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:12:59,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 09:12:59,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424772022] [2020-09-25 09:12:59,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:12:59,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:12:59,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:12:59,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:12:59,171 INFO L87 Difference]: Start difference. First operand 338 states and 418 transitions. Second operand 7 states. [2020-09-25 09:13:01,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:13:01,124 INFO L93 Difference]: Finished difference Result 1258 states and 1699 transitions. [2020-09-25 09:13:01,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 09:13:01,126 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 107 [2020-09-25 09:13:01,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:13:01,142 INFO L225 Difference]: With dead ends: 1258 [2020-09-25 09:13:01,142 INFO L226 Difference]: Without dead ends: 955 [2020-09-25 09:13:01,146 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2020-09-25 09:13:01,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2020-09-25 09:13:01,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 643. [2020-09-25 09:13:01,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2020-09-25 09:13:01,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 804 transitions. [2020-09-25 09:13:01,262 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 804 transitions. Word has length 107 [2020-09-25 09:13:01,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:13:01,265 INFO L479 AbstractCegarLoop]: Abstraction has 643 states and 804 transitions. [2020-09-25 09:13:01,265 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:13:01,265 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 804 transitions. [2020-09-25 09:13:01,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-09-25 09:13:01,276 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:13:01,277 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:13:01,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:13:01,278 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:13:01,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:13:01,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1602138582, now seen corresponding path program 1 times [2020-09-25 09:13:01,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:13:01,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [759941331] [2020-09-25 09:13:01,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:13:01,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:01,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:01,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:01,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-09-25 09:13:01,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:01,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-25 09:13:01,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:01,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:01,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:01,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 137 [2020-09-25 09:13:01,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 09:13:01,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:01,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:13:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:01,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:01,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:01,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 09:13:01,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:01,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:13:01,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:01,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:01,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:01,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:01,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:01,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:01,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 09:13:01,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:01,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:01,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:01,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:13:01,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:01,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:13:01,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:01,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:01,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:01,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:01,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:01,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:01,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 09:13:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:01,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:01,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:01,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:13:01,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:01,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:13:01,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:01,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:01,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:01,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:01,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:01,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:01,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 09:13:01,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:01,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:01,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:01,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:13:01,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:01,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:13:01,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:01,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:01,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:01,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:01,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:01,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:01,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 09:13:01,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:01,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:01,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:01,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:13:01,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:01,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:13:01,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:01,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:01,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:01,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:01,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:01,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:13:01,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 09:13:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:01,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:01,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:01,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 09:13:01,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:01,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:13:01,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:01,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:01,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:01,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:01,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:01,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:01,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:13:01,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:01,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:01,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:01,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:13:01,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:01,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:13:01,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:01,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:01,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:01,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:01,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:01,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:13:01,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-25 09:13:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:01,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:01,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:01,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:13:01,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:01,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:13:01,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:01,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:01,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:01,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:01,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:01,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:01,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-25 09:13:01,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:01,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:01,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:01,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:13:01,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:01,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:13:01,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:01,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:01,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:01,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:01,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:01,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:13:01,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-25 09:13:01,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:01,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:01,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:01,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:13:01,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:01,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:13:01,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:01,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:01,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:01,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:01,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:01,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:01,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-25 09:13:01,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:01,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:01,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:01,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:13:01,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:01,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:13:01,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:01,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:01,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:01,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:01,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 09:13:01,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:13:01,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-25 09:13:01,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:01,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:01,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:01,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:13:01,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:01,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 09:13:01,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:01,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:01,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:01,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:01,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:13:01,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:01,719 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 09:13:01,721 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [759941331] [2020-09-25 09:13:01,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:13:01,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:13:01,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881638012] [2020-09-25 09:13:01,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:13:01,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:13:01,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:13:01,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:13:01,725 INFO L87 Difference]: Start difference. First operand 643 states and 804 transitions. Second operand 8 states. [2020-09-25 09:13:04,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:13:04,124 INFO L93 Difference]: Finished difference Result 2523 states and 3509 transitions. [2020-09-25 09:13:04,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 09:13:04,125 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 139 [2020-09-25 09:13:04,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:13:04,140 INFO L225 Difference]: With dead ends: 2523 [2020-09-25 09:13:04,140 INFO L226 Difference]: Without dead ends: 1916 [2020-09-25 09:13:04,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=148, Invalid=314, Unknown=0, NotChecked=0, Total=462 [2020-09-25 09:13:04,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2020-09-25 09:13:04,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1391. [2020-09-25 09:13:04,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1391 states. [2020-09-25 09:13:04,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 1814 transitions. [2020-09-25 09:13:04,260 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 1814 transitions. Word has length 139 [2020-09-25 09:13:04,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:13:04,261 INFO L479 AbstractCegarLoop]: Abstraction has 1391 states and 1814 transitions. [2020-09-25 09:13:04,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:13:04,261 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 1814 transitions. [2020-09-25 09:13:04,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-25 09:13:04,268 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:13:04,268 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:13:04,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 09:13:04,269 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:13:04,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:13:04,269 INFO L82 PathProgramCache]: Analyzing trace with hash 407561103, now seen corresponding path program 1 times [2020-09-25 09:13:04,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:13:04,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [514444728] [2020-09-25 09:13:04,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:13:04,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:04,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:04,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:04,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:05,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:05,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-25 09:13:05,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:13:05,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1214 [2020-09-25 09:13:05,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:05,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:05,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:05,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 09:13:05,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 09:13:05,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-25 09:13:05,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:13:05,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:05,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:05,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:05,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 09:13:05,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:05,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:13:05,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:05,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:05,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:05,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:05,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:05,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:05,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 09:13:05,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:05,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:05,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:05,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:13:05,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:05,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:13:05,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:05,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:05,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:05,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:05,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:05,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:05,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 09:13:05,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:05,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:05,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:05,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:13:05,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:05,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:13:05,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:05,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:05,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:05,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:05,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:05,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:05,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 09:13:05,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:05,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:05,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:05,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:13:05,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:05,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:13:05,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:05,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:05,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:05,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:05,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:05,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:05,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 09:13:05,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:05,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:05,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:05,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:13:05,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:05,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:13:05,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:05,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:05,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:05,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:05,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:05,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:13:05,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 09:13:05,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:05,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:05,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:05,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 09:13:05,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:05,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:13:05,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:05,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:05,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:05,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:05,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:05,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:13:05,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:13:05,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:05,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:05,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:05,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:13:05,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:05,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:13:05,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:05,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:05,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:05,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:05,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:05,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:05,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-25 09:13:05,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:05,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:05,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:05,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:13:05,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:05,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:13:05,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:05,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:05,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:05,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:05,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:05,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:05,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-25 09:13:05,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:05,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:05,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:05,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:13:05,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:05,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:13:05,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:05,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:05,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:05,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:05,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:05,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:05,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-25 09:13:05,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:05,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:05,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:05,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:13:05,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:05,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:13:05,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:05,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:05,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:05,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:05,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:05,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:05,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-25 09:13:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:05,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:05,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:05,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:13:05,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:05,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:13:05,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:05,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:05,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:05,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:05,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:13:05,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:05,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-25 09:13:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:05,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:05,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:05,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:13:05,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:05,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:13:05,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:05,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:05,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:05,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:05,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:13:05,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:05,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 09:13:05,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:05,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:05,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:05,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:05,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 09:13:05,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:13:05,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 09:13:05,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:05,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:05,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:05,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-25 09:13:05,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 09:13:05,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:05,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:13:05,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:05,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:05,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:05,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:05,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-25 09:13:05,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:13:05,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 09:13:05,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:05,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:05,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:05,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:05,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 09:13:05,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:05,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:13:05,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:05,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:06,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:06,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:06,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 09:13:06,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:13:06,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 09:13:06,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:06,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:06,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:06,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:06,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 09:13:06,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:06,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:13:06,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:06,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:06,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:06,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:13:06,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:06,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:13:06,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:06,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:06,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:06,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:06,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:06,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:06,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-25 09:13:06,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:06,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:06,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:06,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:13:06,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:06,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:13:06,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:06,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:06,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:06,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:06,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 09:13:06,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:06,121 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-09-25 09:13:06,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [514444728] [2020-09-25 09:13:06,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:13:06,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 09:13:06,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919851492] [2020-09-25 09:13:06,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 09:13:06,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:13:06,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 09:13:06,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-25 09:13:06,125 INFO L87 Difference]: Start difference. First operand 1391 states and 1814 transitions. Second operand 10 states. [2020-09-25 09:13:09,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:13:09,205 INFO L93 Difference]: Finished difference Result 2673 states and 3790 transitions. [2020-09-25 09:13:09,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-25 09:13:09,206 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 181 [2020-09-25 09:13:09,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:13:09,222 INFO L225 Difference]: With dead ends: 2673 [2020-09-25 09:13:09,222 INFO L226 Difference]: Without dead ends: 1958 [2020-09-25 09:13:09,229 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=214, Invalid=716, Unknown=0, NotChecked=0, Total=930 [2020-09-25 09:13:09,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1958 states. [2020-09-25 09:13:09,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1958 to 1345. [2020-09-25 09:13:09,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1345 states. [2020-09-25 09:13:09,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 1729 transitions. [2020-09-25 09:13:09,353 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 1729 transitions. Word has length 181 [2020-09-25 09:13:09,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:13:09,355 INFO L479 AbstractCegarLoop]: Abstraction has 1345 states and 1729 transitions. [2020-09-25 09:13:09,355 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 09:13:09,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 1729 transitions. [2020-09-25 09:13:09,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-09-25 09:13:09,362 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:13:09,363 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:13:09,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 09:13:09,364 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:13:09,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:13:09,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1051815898, now seen corresponding path program 1 times [2020-09-25 09:13:09,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:13:09,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [723388134] [2020-09-25 09:13:09,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:13:09,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:09,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:09,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:10,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:10,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 09:13:10,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:13:10,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 795 [2020-09-25 09:13:10,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:10,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:10,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:10,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 166 [2020-09-25 09:13:10,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 09:13:10,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:10,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:13:10,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:10,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:10,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:10,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 09:13:10,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:10,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:13:10,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:10,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:10,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:10,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:10,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:10,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:10,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 09:13:10,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:10,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:10,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:10,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:13:10,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:10,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:13:10,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:10,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:10,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:10,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:10,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:10,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:10,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 09:13:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:10,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:10,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:10,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:13:10,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:10,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:13:10,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:10,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:10,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:10,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:10,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:10,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:10,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 09:13:10,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:10,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:10,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:10,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:13:10,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:10,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:13:10,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:10,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:10,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:10,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:10,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:10,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:13:10,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 09:13:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:10,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:10,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:10,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:13:10,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:10,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:13:10,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:10,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:10,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:10,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:10,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:10,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:13:10,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 09:13:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:10,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:10,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:10,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 09:13:10,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:10,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:13:10,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:10,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:10,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:10,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:10,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:10,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:10,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:13:10,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:10,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:10,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:10,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:13:10,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:10,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:13:10,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:10,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:10,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:10,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:10,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:10,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:13:10,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-25 09:13:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:10,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:10,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:10,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:13:10,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:10,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:13:10,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:10,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:10,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:10,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:10,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:10,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:10,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-25 09:13:10,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:10,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:10,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:10,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:13:10,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:10,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:13:10,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:10,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:10,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:10,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:10,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:10,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:10,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-25 09:13:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:10,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:10,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:10,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:13:10,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:10,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:13:10,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:10,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:10,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:10,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:10,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:10,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:10,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-25 09:13:10,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:10,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:10,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:10,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:13:10,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:10,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:13:10,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:10,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:10,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:10,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:10,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:10,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:13:10,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-25 09:13:10,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:10,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:10,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:10,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:13:10,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:10,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:13:10,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:10,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:10,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:10,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:10,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:10,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:10,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 09:13:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:10,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:10,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:10,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:10,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 09:13:10,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:13:10,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-25 09:13:10,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:10,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:10,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:10,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 09:13:10,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 09:13:10,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:10,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:13:10,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:10,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:10,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:10,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:10,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 09:13:10,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:13:10,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 09:13:10,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:10,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:10,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:10,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 09:13:10,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 09:13:10,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:10,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:13:10,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:10,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:10,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:10,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:10,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 09:13:10,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:13:10,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 09:13:10,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:10,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:10,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:10,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:10,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 09:13:10,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:10,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:13:10,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:10,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:10,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:10,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:13:10,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:10,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:13:10,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:10,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:10,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:13:10,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:10,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:13:10,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:10,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-25 09:13:10,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:13:10,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:13:10,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:13:10,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 09:13:10,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:13:10,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:13:10,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:13:10,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:13:10,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:13:10,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:13:10,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:13:10,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:13:10,887 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-09-25 09:13:10,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [723388134] [2020-09-25 09:13:10,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:13:10,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 09:13:10,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329021275] [2020-09-25 09:13:10,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 09:13:10,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:13:10,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 09:13:10,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-25 09:13:10,890 INFO L87 Difference]: Start difference. First operand 1345 states and 1729 transitions. Second operand 10 states. [2020-09-25 09:13:12,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:13:13,000 INFO L93 Difference]: Finished difference Result 3608 states and 5003 transitions. [2020-09-25 09:13:13,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-25 09:13:13,000 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 182 [2020-09-25 09:13:13,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:13:13,017 INFO L225 Difference]: With dead ends: 3608 [2020-09-25 09:13:13,017 INFO L226 Difference]: Without dead ends: 2304 [2020-09-25 09:13:13,026 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-09-25 09:13:13,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2304 states. [2020-09-25 09:13:13,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2304 to 1701. [2020-09-25 09:13:13,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1701 states. [2020-09-25 09:13:13,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 2137 transitions. [2020-09-25 09:13:13,150 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 2137 transitions. Word has length 182 [2020-09-25 09:13:13,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:13:13,151 INFO L479 AbstractCegarLoop]: Abstraction has 1701 states and 2137 transitions. [2020-09-25 09:13:13,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 09:13:13,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 2137 transitions. [2020-09-25 09:13:13,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-09-25 09:13:13,158 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:13:13,158 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:13:13,159 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 09:13:13,159 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:13:13,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:13:13,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1421271293, now seen corresponding path program 1 times [2020-09-25 09:13:13,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:13:13,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1011508770] [2020-09-25 09:13:13,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:13:13,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 09:13:13,188 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 09:13:13,189 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 09:13:13,195 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 09:13:13,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 09:13:13 BoogieIcfgContainer [2020-09-25 09:13:13,237 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 09:13:13,240 INFO L168 Benchmark]: Toolchain (without parser) took 25438.13 ms. Allocated memory was 146.3 MB in the beginning and 440.9 MB in the end (delta: 294.6 MB). Free memory was 102.5 MB in the beginning and 178.8 MB in the end (delta: -76.3 MB). Peak memory consumption was 218.4 MB. Max. memory is 7.1 GB. [2020-09-25 09:13:13,241 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 09:13:13,242 INFO L168 Benchmark]: CACSL2BoogieTranslator took 492.69 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 101.9 MB in the beginning and 181.6 MB in the end (delta: -79.7 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-09-25 09:13:13,242 INFO L168 Benchmark]: Boogie Preprocessor took 51.32 ms. Allocated memory is still 202.9 MB. Free memory was 181.6 MB in the beginning and 179.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2020-09-25 09:13:13,243 INFO L168 Benchmark]: RCFGBuilder took 725.30 ms. Allocated memory is still 202.9 MB. Free memory was 179.1 MB in the beginning and 144.9 MB in the end (delta: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB. [2020-09-25 09:13:13,244 INFO L168 Benchmark]: TraceAbstraction took 24155.85 ms. Allocated memory was 202.9 MB in the beginning and 440.9 MB in the end (delta: 238.0 MB). Free memory was 144.3 MB in the beginning and 178.8 MB in the end (delta: -34.5 MB). Peak memory consumption was 203.5 MB. Max. memory is 7.1 GB. [2020-09-25 09:13:13,248 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 492.69 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 101.9 MB in the beginning and 181.6 MB in the end (delta: -79.7 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 51.32 ms. Allocated memory is still 202.9 MB. Free memory was 181.6 MB in the beginning and 179.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 725.30 ms. Allocated memory is still 202.9 MB. Free memory was 179.1 MB in the beginning and 144.9 MB in the end (delta: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 24155.85 ms. Allocated memory was 202.9 MB in the beginning and 440.9 MB in the end (delta: 238.0 MB). Free memory was 144.3 MB in the beginning and 178.8 MB in the end (delta: -34.5 MB). Peak memory consumption was 203.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 11]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L15] int m_pc = 0; [L16] int t1_pc = 0; [L17] int m_st ; [L18] int t1_st ; [L19] int m_i ; [L20] int t1_i ; [L21] int M_E = 2; [L22] int T1_E = 2; [L23] int E_1 = 2; [L439] int __retres1 ; [L443] CALL init_model() [L354] m_i = 1 [L355] t1_i = 1 [L443] RET init_model() [L444] CALL start_simulation() [L380] int kernel_st ; [L381] int tmp ; [L382] int tmp___0 ; [L386] kernel_st = 0 [L387] FCALL update_channels() [L388] CALL init_threads() [L151] COND TRUE m_i == 1 [L152] m_st = 0 [L156] COND TRUE t1_i == 1 [L157] t1_st = 0 [L388] RET init_threads() [L389] CALL fire_delta_events() [L240] COND FALSE !(M_E == 0) [L245] COND FALSE !(T1_E == 0) [L250] COND FALSE !(E_1 == 0) [L389] RET fire_delta_events() [L390] CALL activate_threads() [L283] int tmp ; [L284] int tmp___0 ; [L288] CALL, EXPR is_master_triggered() [L102] int __retres1 ; [L105] COND FALSE !(m_pc == 1) [L115] __retres1 = 0 [L117] return (__retres1); [L288] RET, EXPR is_master_triggered() [L288] tmp = is_master_triggered() [L290] COND FALSE !(\read(tmp)) [L296] CALL, EXPR is_transmit1_triggered() [L121] int __retres1 ; [L124] COND FALSE !(t1_pc == 1) [L134] __retres1 = 0 [L136] return (__retres1); [L296] RET, EXPR is_transmit1_triggered() [L296] tmp___0 = is_transmit1_triggered() [L298] COND FALSE !(\read(tmp___0)) [L390] RET activate_threads() [L391] CALL reset_delta_events() [L263] COND FALSE !(M_E == 1) [L268] COND FALSE !(T1_E == 1) [L273] COND FALSE !(E_1 == 1) [L391] RET reset_delta_events() [L394] COND TRUE 1 [L397] kernel_st = 1 [L398] CALL eval() [L187] int tmp ; [L191] COND TRUE 1 [L194] CALL, EXPR exists_runnable_thread() [L166] int __retres1 ; [L169] COND TRUE m_st == 0 [L170] __retres1 = 1 [L182] return (__retres1); [L194] RET, EXPR exists_runnable_thread() [L194] tmp = exists_runnable_thread() [L196] COND TRUE \read(tmp) [L201] COND TRUE m_st == 0 [L202] int tmp_ndt_1; [L203] tmp_ndt_1 = __VERIFIER_nondet_int() [L204] COND FALSE !(\read(tmp_ndt_1)) [L215] COND TRUE t1_st == 0 [L216] int tmp_ndt_2; [L217] tmp_ndt_2 = __VERIFIER_nondet_int() [L218] COND TRUE \read(tmp_ndt_2) [L220] t1_st = 1 [L221] CALL transmit1() [L72] COND TRUE t1_pc == 0 [L83] COND TRUE 1 [L85] t1_pc = 1 [L86] t1_st = 2 [L221] RET transmit1() [L191] COND TRUE 1 [L194] CALL, EXPR exists_runnable_thread() [L166] int __retres1 ; [L169] COND TRUE m_st == 0 [L170] __retres1 = 1 [L182] return (__retres1); [L194] RET, EXPR exists_runnable_thread() [L194] tmp = exists_runnable_thread() [L196] COND TRUE \read(tmp) [L201] COND TRUE m_st == 0 [L202] int tmp_ndt_1; [L203] tmp_ndt_1 = __VERIFIER_nondet_int() [L204] COND TRUE \read(tmp_ndt_1) [L206] m_st = 1 [L207] CALL master() [L31] COND TRUE m_pc == 0 [L42] COND TRUE 1 [L45] E_1 = 1 [L46] CALL immediate_notify() [L312] CALL activate_threads() [L283] int tmp ; [L284] int tmp___0 ; [L288] CALL, EXPR is_master_triggered() [L102] int __retres1 ; [L105] COND FALSE !(m_pc == 1) [L115] __retres1 = 0 [L117] return (__retres1); [L288] RET, EXPR is_master_triggered() [L288] tmp = is_master_triggered() [L290] COND FALSE !(\read(tmp)) [L296] CALL, EXPR is_transmit1_triggered() [L121] int __retres1 ; [L124] COND TRUE t1_pc == 1 [L125] COND TRUE E_1 == 1 [L126] __retres1 = 1 [L136] return (__retres1); [L296] RET, EXPR is_transmit1_triggered() [L296] tmp___0 = is_transmit1_triggered() [L298] COND TRUE \read(tmp___0) [L299] t1_st = 0 [L312] RET activate_threads() [L46] RET immediate_notify() [L47] E_1 = 2 [L50] COND TRUE 1 [L52] m_pc = 1 [L53] m_st = 2 [L207] RET master() [L215] COND TRUE t1_st == 0 [L216] int tmp_ndt_2; [L217] tmp_ndt_2 = __VERIFIER_nondet_int() [L218] COND TRUE \read(tmp_ndt_2) [L220] t1_st = 1 [L221] CALL transmit1() [L72] COND FALSE !(t1_pc == 0) [L75] COND TRUE t1_pc == 1 [L91] CALL error() [L11] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 21 procedures, 201 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 24.0s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 13.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1443 SDtfs, 5267 SDslu, 273 SDs, 0 SdLazy, 6518 SolverSat, 1878 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 325 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1701occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 2387 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 9.5s InterpolantComputationTime, 996 NumberOfCodeBlocks, 996 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 808 ConstructedInterpolants, 0 QuantifiedInterpolants, 222113 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 133/133 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...