/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 18:50:48,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 18:50:48,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 18:50:48,101 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 18:50:48,101 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 18:50:48,102 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 18:50:48,104 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 18:50:48,106 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 18:50:48,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 18:50:48,108 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 18:50:48,109 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 18:50:48,110 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 18:50:48,111 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 18:50:48,112 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 18:50:48,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 18:50:48,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 18:50:48,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 18:50:48,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 18:50:48,118 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 18:50:48,120 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 18:50:48,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 18:50:48,122 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 18:50:48,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 18:50:48,124 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 18:50:48,127 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 18:50:48,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 18:50:48,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 18:50:48,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 18:50:48,129 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 18:50:48,130 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 18:50:48,130 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 18:50:48,131 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 18:50:48,131 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 18:50:48,132 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 18:50:48,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 18:50:48,133 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 18:50:48,134 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 18:50:48,134 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 18:50:48,135 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 18:50:48,136 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 18:50:48,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 18:50:48,137 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 [2020-08-18 18:50:48,159 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 18:50:48,159 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 18:50:48,161 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 18:50:48,161 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 18:50:48,161 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 18:50:48,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 18:50:48,162 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 18:50:48,162 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 18:50:48,162 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 18:50:48,162 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 18:50:48,162 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 18:50:48,163 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 18:50:48,163 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 18:50:48,163 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 18:50:48,163 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 18:50:48,163 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 18:50:48,164 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 18:50:48,164 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 18:50:48,164 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 18:50:48,164 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 18:50:48,164 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 18:50:48,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 18:50:48,165 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 18:50:48,165 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 18:50:48,165 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 18:50:48,165 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 18:50:48,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 18:50:48,166 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 18:50:48,166 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 18:50:48,166 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=LOWLEXORDER; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=LOWLEXORDER; [2020-08-18 18:50:48,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 18:50:48,492 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 18:50:48,497 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 18:50:48,500 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 18:50:48,501 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 18:50:48,502 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.15.cil.c [2020-08-18 18:50:48,563 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e5037242c/4fea0faf211345cca1820d39f24ad4de/FLAG5307bd2b4 [2020-08-18 18:50:49,077 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 18:50:49,078 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.15.cil.c [2020-08-18 18:50:49,093 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e5037242c/4fea0faf211345cca1820d39f24ad4de/FLAG5307bd2b4 [2020-08-18 18:50:49,411 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e5037242c/4fea0faf211345cca1820d39f24ad4de [2020-08-18 18:50:49,422 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 18:50:49,424 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 18:50:49,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 18:50:49,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 18:50:49,429 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 18:50:49,430 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 06:50:49" (1/1) ... [2020-08-18 18:50:49,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@387f035d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:50:49, skipping insertion in model container [2020-08-18 18:50:49,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 06:50:49" (1/1) ... [2020-08-18 18:50:49,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 18:50:49,495 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 18:50:49,913 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 18:50:49,927 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 18:50:50,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 18:50:50,038 INFO L208 MainTranslator]: Completed translation [2020-08-18 18:50:50,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:50:50 WrapperNode [2020-08-18 18:50:50,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 18:50:50,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 18:50:50,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 18:50:50,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 18:50:50,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:50:50" (1/1) ... [2020-08-18 18:50:50,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:50:50" (1/1) ... [2020-08-18 18:50:50,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:50:50" (1/1) ... [2020-08-18 18:50:50,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:50:50" (1/1) ... [2020-08-18 18:50:50,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:50:50" (1/1) ... [2020-08-18 18:50:50,123 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:50:50" (1/1) ... [2020-08-18 18:50:50,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:50:50" (1/1) ... [2020-08-18 18:50:50,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 18:50:50,140 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 18:50:50,140 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 18:50:50,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 18:50:50,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:50:50" (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 [2020-08-18 18:50:50,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 18:50:50,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 18:50:50,225 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-08-18 18:50:50,226 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-08-18 18:50:50,226 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-08-18 18:50:50,226 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-08-18 18:50:50,227 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2020-08-18 18:50:50,227 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2020-08-18 18:50:50,227 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2020-08-18 18:50:50,228 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2020-08-18 18:50:50,229 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2020-08-18 18:50:50,229 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2020-08-18 18:50:50,229 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2020-08-18 18:50:50,229 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2020-08-18 18:50:50,229 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2020-08-18 18:50:50,230 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2020-08-18 18:50:50,230 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2020-08-18 18:50:50,230 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-08-18 18:50:50,231 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-08-18 18:50:50,231 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-08-18 18:50:50,231 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2020-08-18 18:50:50,231 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2020-08-18 18:50:50,231 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2020-08-18 18:50:50,231 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2020-08-18 18:50:50,232 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2020-08-18 18:50:50,232 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2020-08-18 18:50:50,233 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2020-08-18 18:50:50,233 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2020-08-18 18:50:50,233 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2020-08-18 18:50:50,233 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2020-08-18 18:50:50,234 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2020-08-18 18:50:50,234 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-08-18 18:50:50,234 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-08-18 18:50:50,234 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-08-18 18:50:50,234 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-08-18 18:50:50,234 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-08-18 18:50:50,235 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-08-18 18:50:50,235 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-08-18 18:50:50,235 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-08-18 18:50:50,235 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-08-18 18:50:50,235 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-08-18 18:50:50,235 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-08-18 18:50:50,236 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-08-18 18:50:50,236 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-08-18 18:50:50,236 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 18:50:50,236 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 18:50:50,236 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 18:50:50,236 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-08-18 18:50:50,236 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-08-18 18:50:50,237 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-08-18 18:50:50,237 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-08-18 18:50:50,237 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2020-08-18 18:50:50,237 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2020-08-18 18:50:50,237 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2020-08-18 18:50:50,238 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2020-08-18 18:50:50,238 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2020-08-18 18:50:50,238 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2020-08-18 18:50:50,238 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2020-08-18 18:50:50,239 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2020-08-18 18:50:50,239 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2020-08-18 18:50:50,239 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2020-08-18 18:50:50,239 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2020-08-18 18:50:50,239 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-08-18 18:50:50,239 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-08-18 18:50:50,240 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-08-18 18:50:50,240 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-08-18 18:50:50,240 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2020-08-18 18:50:50,240 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2020-08-18 18:50:50,240 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2020-08-18 18:50:50,240 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2020-08-18 18:50:50,241 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2020-08-18 18:50:50,241 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2020-08-18 18:50:50,242 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2020-08-18 18:50:50,242 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2020-08-18 18:50:50,242 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2020-08-18 18:50:50,243 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2020-08-18 18:50:50,243 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2020-08-18 18:50:50,244 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-08-18 18:50:50,244 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-08-18 18:50:50,244 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-08-18 18:50:50,244 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-08-18 18:50:50,244 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-08-18 18:50:50,244 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-08-18 18:50:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-08-18 18:50:50,246 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-08-18 18:50:50,246 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-08-18 18:50:50,246 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-08-18 18:50:50,246 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-08-18 18:50:50,246 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-08-18 18:50:50,246 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 18:50:50,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 18:50:50,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 18:50:51,617 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 18:50:51,618 INFO L295 CfgBuilder]: Removed 17 assume(true) statements. [2020-08-18 18:50:51,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 06:50:51 BoogieIcfgContainer [2020-08-18 18:50:51,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 18:50:51,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 18:50:51,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 18:50:51,632 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 18:50:51,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 06:50:49" (1/3) ... [2020-08-18 18:50:51,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fb16bb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 06:50:51, skipping insertion in model container [2020-08-18 18:50:51,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:50:50" (2/3) ... [2020-08-18 18:50:51,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fb16bb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 06:50:51, skipping insertion in model container [2020-08-18 18:50:51,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 06:50:51" (3/3) ... [2020-08-18 18:50:51,636 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.15.cil.c [2020-08-18 18:50:51,647 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 18:50:51,656 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 18:50:51,674 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 18:50:51,703 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 18:50:51,703 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 18:50:51,703 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 18:50:51,703 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 18:50:51,704 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 18:50:51,704 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 18:50:51,704 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 18:50:51,704 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 18:50:51,734 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states. [2020-08-18 18:50:51,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-18 18:50:51,752 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:50:51,754 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 18:50:51,754 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:50:51,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:50:51,762 INFO L82 PathProgramCache]: Analyzing trace with hash 754746292, now seen corresponding path program 1 times [2020-08-18 18:50:51,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:50:51,772 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [491828425] [2020-08-18 18:50:51,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:50:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:50:52,595 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-18 18:50:52,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:50:52,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:50:52,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 18:50:52,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:50:52,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 18:50:52,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:50:52,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 18:50:52,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:50:52,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 18:50:52,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:50:52,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-18 18:50:52,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:50:52,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 18:50:52,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:50:52,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 18:50:52,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:50:52,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 18:50:52,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:50:52,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 18:50:52,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:50:52,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 18:50:52,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:50:52,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 18:50:52,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:50:52,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 18:50:52,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:50:52,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 18:50:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:50:52,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 18:50:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:50:52,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 18:50:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:50:52,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 18:50:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:50:52,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 18:50:52,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:50:52,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 18:50:52,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:50:52,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 18:50:52,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:50:53,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-18 18:50:53,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:50:53,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 18:50:53,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:50:53,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 18:50:53,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [491828425] [2020-08-18 18:50:53,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 18:50:53,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 18:50:53,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503816777] [2020-08-18 18:50:53,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 18:50:53,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 18:50:53,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 18:50:53,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-18 18:50:53,223 INFO L87 Difference]: Start difference. First operand 499 states. Second operand 8 states. [2020-08-18 18:50:53,585 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-18 18:50:53,717 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-08-18 18:50:54,055 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-18 18:50:54,252 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-18 18:51:02,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 18:51:02,040 INFO L93 Difference]: Finished difference Result 1306 states and 2150 transitions. [2020-08-18 18:51:02,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 18:51:02,042 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2020-08-18 18:51:02,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 18:51:02,073 INFO L225 Difference]: With dead ends: 1306 [2020-08-18 18:51:02,073 INFO L226 Difference]: Without dead ends: 810 [2020-08-18 18:51:02,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-08-18 18:51:02,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2020-08-18 18:51:02,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 490. [2020-08-18 18:51:02,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-08-18 18:51:02,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 718 transitions. [2020-08-18 18:51:02,303 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 718 transitions. Word has length 240 [2020-08-18 18:51:02,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 18:51:02,304 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 718 transitions. [2020-08-18 18:51:02,304 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 18:51:02,305 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 718 transitions. [2020-08-18 18:51:02,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-18 18:51:02,311 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:51:02,311 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 18:51:02,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 18:51:02,312 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:51:02,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:51:02,313 INFO L82 PathProgramCache]: Analyzing trace with hash -332213258, now seen corresponding path program 1 times [2020-08-18 18:51:02,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:51:02,313 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1914276885] [2020-08-18 18:51:02,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:51:02,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:02,724 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-18 18:51:02,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:51:02,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:02,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 18:51:02,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:02,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 18:51:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:02,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 18:51:02,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:02,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 18:51:02,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:02,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-18 18:51:02,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:02,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 18:51:02,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:02,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 18:51:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:02,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 18:51:02,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:02,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 18:51:02,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:02,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 18:51:02,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:02,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 18:51:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:02,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 18:51:02,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:02,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 18:51:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:02,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 18:51:02,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:02,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 18:51:02,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:02,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 18:51:02,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:02,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 18:51:02,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:02,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 18:51:02,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:02,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 18:51:02,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:02,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-18 18:51:02,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:02,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 18:51:02,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:03,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 18:51:03,062 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1914276885] [2020-08-18 18:51:03,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 18:51:03,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 18:51:03,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35165388] [2020-08-18 18:51:03,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 18:51:03,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 18:51:03,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 18:51:03,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-18 18:51:03,066 INFO L87 Difference]: Start difference. First operand 490 states and 718 transitions. Second operand 8 states. [2020-08-18 18:51:03,359 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-18 18:51:03,488 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-08-18 18:51:03,744 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-18 18:51:03,904 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-18 18:51:09,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 18:51:09,979 INFO L93 Difference]: Finished difference Result 1277 states and 1950 transitions. [2020-08-18 18:51:09,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 18:51:09,980 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2020-08-18 18:51:09,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 18:51:09,988 INFO L225 Difference]: With dead ends: 1277 [2020-08-18 18:51:09,989 INFO L226 Difference]: Without dead ends: 810 [2020-08-18 18:51:09,992 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-08-18 18:51:09,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2020-08-18 18:51:10,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 490. [2020-08-18 18:51:10,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-08-18 18:51:10,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 717 transitions. [2020-08-18 18:51:10,089 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 717 transitions. Word has length 240 [2020-08-18 18:51:10,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 18:51:10,090 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 717 transitions. [2020-08-18 18:51:10,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 18:51:10,090 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 717 transitions. [2020-08-18 18:51:10,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-18 18:51:10,094 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:51:10,095 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 18:51:10,095 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 18:51:10,095 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:51:10,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:51:10,096 INFO L82 PathProgramCache]: Analyzing trace with hash -275347912, now seen corresponding path program 1 times [2020-08-18 18:51:10,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:51:10,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [114032864] [2020-08-18 18:51:10,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:51:10,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:10,446 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-18 18:51:10,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:51:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:10,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 18:51:10,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:10,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 18:51:10,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:10,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 18:51:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:10,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 18:51:10,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:10,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-18 18:51:10,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:10,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 18:51:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:10,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 18:51:10,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:10,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 18:51:10,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:10,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 18:51:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:10,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 18:51:10,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:10,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 18:51:10,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:10,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 18:51:10,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:10,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 18:51:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:10,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 18:51:10,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:10,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 18:51:10,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:10,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 18:51:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:10,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 18:51:10,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:10,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 18:51:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:10,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 18:51:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:10,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-18 18:51:10,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:10,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 18:51:10,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:10,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 18:51:10,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [114032864] [2020-08-18 18:51:10,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 18:51:10,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-18 18:51:10,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340757807] [2020-08-18 18:51:10,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 18:51:10,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 18:51:10,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 18:51:10,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-18 18:51:10,904 INFO L87 Difference]: Start difference. First operand 490 states and 717 transitions. Second operand 9 states. [2020-08-18 18:51:11,378 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-18 18:51:11,562 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-18 18:51:11,839 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-18 18:51:18,760 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-18 18:51:18,946 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-08-18 18:51:24,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 18:51:24,175 INFO L93 Difference]: Finished difference Result 1991 states and 3097 transitions. [2020-08-18 18:51:24,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-18 18:51:24,176 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 240 [2020-08-18 18:51:24,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 18:51:24,186 INFO L225 Difference]: With dead ends: 1991 [2020-08-18 18:51:24,186 INFO L226 Difference]: Without dead ends: 1532 [2020-08-18 18:51:24,190 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2020-08-18 18:51:24,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2020-08-18 18:51:24,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 965. [2020-08-18 18:51:24,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-08-18 18:51:24,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1426 transitions. [2020-08-18 18:51:24,374 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1426 transitions. Word has length 240 [2020-08-18 18:51:24,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 18:51:24,374 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1426 transitions. [2020-08-18 18:51:24,374 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 18:51:24,374 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1426 transitions. [2020-08-18 18:51:24,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-18 18:51:24,378 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:51:24,378 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 18:51:24,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 18:51:24,379 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:51:24,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:51:24,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1349355716, now seen corresponding path program 1 times [2020-08-18 18:51:24,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:51:24,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [299914028] [2020-08-18 18:51:24,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:51:24,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:24,685 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-18 18:51:24,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:51:24,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:24,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 18:51:24,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:24,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 18:51:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:24,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 18:51:24,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:24,935 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-08-18 18:51:24,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 18:51:24,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:24,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-18 18:51:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:25,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 18:51:25,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:25,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 18:51:25,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:25,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 18:51:25,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:25,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 18:51:25,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:25,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 18:51:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:25,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 18:51:25,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:25,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 18:51:25,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:25,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 18:51:25,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:25,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 18:51:25,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:25,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 18:51:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:25,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 18:51:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:25,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 18:51:25,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:25,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 18:51:25,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:25,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 18:51:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:25,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-18 18:51:25,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:25,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 18:51:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:25,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 18:51:25,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [299914028] [2020-08-18 18:51:25,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 18:51:25,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-18 18:51:25,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230288164] [2020-08-18 18:51:25,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 18:51:25,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 18:51:25,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 18:51:25,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-18 18:51:25,159 INFO L87 Difference]: Start difference. First operand 965 states and 1426 transitions. Second operand 10 states. [2020-08-18 18:51:25,428 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-18 18:51:33,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 18:51:33,499 INFO L93 Difference]: Finished difference Result 2455 states and 3744 transitions. [2020-08-18 18:51:33,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 18:51:33,500 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2020-08-18 18:51:33,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 18:51:33,522 INFO L225 Difference]: With dead ends: 2455 [2020-08-18 18:51:33,522 INFO L226 Difference]: Without dead ends: 1521 [2020-08-18 18:51:33,528 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-08-18 18:51:33,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2020-08-18 18:51:33,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 965. [2020-08-18 18:51:33,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-08-18 18:51:33,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1419 transitions. [2020-08-18 18:51:33,770 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1419 transitions. Word has length 240 [2020-08-18 18:51:33,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 18:51:33,771 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1419 transitions. [2020-08-18 18:51:33,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 18:51:33,772 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1419 transitions. [2020-08-18 18:51:33,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-18 18:51:33,776 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:51:33,776 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 18:51:33,776 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 18:51:33,777 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:51:33,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:51:33,777 INFO L82 PathProgramCache]: Analyzing trace with hash -275622472, now seen corresponding path program 1 times [2020-08-18 18:51:33,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:51:33,778 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1359228674] [2020-08-18 18:51:33,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:51:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:34,139 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-18 18:51:34,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:51:34,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:34,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 18:51:34,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:34,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 18:51:34,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:34,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 18:51:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:34,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 18:51:34,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:34,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-18 18:51:34,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:34,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 18:51:34,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:34,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 18:51:34,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:34,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 18:51:34,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:34,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 18:51:34,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:34,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 18:51:34,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:34,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 18:51:34,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:34,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 18:51:34,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:34,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 18:51:34,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:34,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 18:51:34,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:34,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 18:51:34,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:34,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 18:51:34,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:34,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 18:51:34,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:34,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 18:51:34,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:34,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 18:51:34,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:34,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-18 18:51:34,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:34,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 18:51:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:34,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 18:51:34,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1359228674] [2020-08-18 18:51:34,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 18:51:34,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-18 18:51:34,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007034564] [2020-08-18 18:51:34,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 18:51:34,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 18:51:34,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 18:51:34,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-18 18:51:34,483 INFO L87 Difference]: Start difference. First operand 965 states and 1419 transitions. Second operand 10 states. [2020-08-18 18:51:34,742 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-18 18:51:34,875 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-18 18:51:35,050 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-18 18:51:41,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 18:51:41,053 INFO L93 Difference]: Finished difference Result 2451 states and 3722 transitions. [2020-08-18 18:51:41,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 18:51:41,054 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2020-08-18 18:51:41,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 18:51:41,063 INFO L225 Difference]: With dead ends: 2451 [2020-08-18 18:51:41,064 INFO L226 Difference]: Without dead ends: 1517 [2020-08-18 18:51:41,068 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-08-18 18:51:41,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2020-08-18 18:51:41,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 965. [2020-08-18 18:51:41,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-08-18 18:51:41,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1412 transitions. [2020-08-18 18:51:41,227 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1412 transitions. Word has length 240 [2020-08-18 18:51:41,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 18:51:41,228 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1412 transitions. [2020-08-18 18:51:41,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 18:51:41,228 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1412 transitions. [2020-08-18 18:51:41,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-18 18:51:41,232 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:51:41,232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 18:51:41,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 18:51:41,232 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:51:41,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:51:41,233 INFO L82 PathProgramCache]: Analyzing trace with hash -518080580, now seen corresponding path program 1 times [2020-08-18 18:51:41,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:51:41,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1919122548] [2020-08-18 18:51:41,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:51:41,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:41,531 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-18 18:51:41,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:51:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:41,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 18:51:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:41,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 18:51:41,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:41,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 18:51:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:41,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 18:51:41,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:41,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-18 18:51:41,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:41,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 18:51:41,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:41,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 18:51:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:41,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 18:51:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:41,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 18:51:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:41,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 18:51:41,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:41,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 18:51:41,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:41,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 18:51:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:41,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 18:51:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:41,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 18:51:41,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:41,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 18:51:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:41,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 18:51:41,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:41,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 18:51:41,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:41,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 18:51:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:41,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 18:51:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:41,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-18 18:51:41,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:41,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 18:51:41,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:51:41,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 18:51:41,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1919122548] [2020-08-18 18:51:41,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 18:51:41,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-18 18:51:41,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144797204] [2020-08-18 18:51:41,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 18:51:41,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 18:51:41,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 18:51:41,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-18 18:51:41,940 INFO L87 Difference]: Start difference. First operand 965 states and 1412 transitions. Second operand 10 states. [2020-08-18 18:51:42,213 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-18 18:51:42,346 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-18 18:51:42,519 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 126