/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 false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 10:31:15,063 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 10:31:15,067 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 10:31:15,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 10:31:15,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 10:31:15,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 10:31:15,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 10:31:15,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 10:31:15,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 10:31:15,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 10:31:15,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 10:31:15,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 10:31:15,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 10:31:15,105 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 10:31:15,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 10:31:15,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 10:31:15,108 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 10:31:15,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 10:31:15,111 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 10:31:15,113 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 10:31:15,115 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 10:31:15,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 10:31:15,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 10:31:15,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 10:31:15,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 10:31:15,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 10:31:15,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 10:31:15,123 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 10:31:15,123 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 10:31:15,125 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 10:31:15,125 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 10:31:15,126 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 10:31:15,127 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 10:31:15,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 10:31:15,129 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 10:31:15,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 10:31:15,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 10:31:15,130 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 10:31:15,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 10:31:15,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 10:31:15,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 10:31:15,133 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 [2020-09-21 10:31:15,169 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 10:31:15,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 10:31:15,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 10:31:15,171 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 10:31:15,171 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 10:31:15,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 10:31:15,172 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 10:31:15,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 10:31:15,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 10:31:15,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 10:31:15,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 10:31:15,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 10:31:15,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 10:31:15,173 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 10:31:15,173 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 10:31:15,174 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 10:31:15,174 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 10:31:15,174 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 10:31:15,174 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 10:31:15,174 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 10:31:15,175 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 10:31:15,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 10:31:15,175 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 10:31:15,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 10:31:15,176 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 10:31:15,176 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 10:31:15,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 10:31:15,176 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 10:31:15,176 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 10:31:15,177 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 -> false [2020-09-21 10:31:15,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 10:31:15,649 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 10:31:15,653 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 10:31:15,657 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 10:31:15,658 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 10:31:15,660 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.16.cil.c [2020-09-21 10:31:15,736 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/38c0c502f/c8963570463045699ab1b6734094d6bc/FLAG6703e15f9 [2020-09-21 10:31:16,382 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 10:31:16,383 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.16.cil.c [2020-09-21 10:31:16,410 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/38c0c502f/c8963570463045699ab1b6734094d6bc/FLAG6703e15f9 [2020-09-21 10:31:16,587 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/38c0c502f/c8963570463045699ab1b6734094d6bc [2020-09-21 10:31:16,601 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 10:31:16,606 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 10:31:16,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 10:31:16,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 10:31:16,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 10:31:16,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 10:31:16" (1/1) ... [2020-09-21 10:31:16,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ee4d01a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:16, skipping insertion in model container [2020-09-21 10:31:16,618 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 10:31:16" (1/1) ... [2020-09-21 10:31:16,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 10:31:16,696 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 10:31:17,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 10:31:17,079 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 10:31:17,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 10:31:17,346 INFO L208 MainTranslator]: Completed translation [2020-09-21 10:31:17,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:17 WrapperNode [2020-09-21 10:31:17,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 10:31:17,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 10:31:17,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 10:31:17,348 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 10:31:17,363 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:17" (1/1) ... [2020-09-21 10:31:17,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:17" (1/1) ... [2020-09-21 10:31:17,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:17" (1/1) ... [2020-09-21 10:31:17,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:17" (1/1) ... [2020-09-21 10:31:17,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:17" (1/1) ... [2020-09-21 10:31:17,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:17" (1/1) ... [2020-09-21 10:31:17,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:17" (1/1) ... [2020-09-21 10:31:17,459 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 10:31:17,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 10:31:17,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 10:31:17,460 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 10:31:17,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:17" (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 [2020-09-21 10:31:17,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 10:31:17,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 10:31:17,547 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-09-21 10:31:17,547 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-09-21 10:31:17,547 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-09-21 10:31:17,547 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-09-21 10:31:17,547 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2020-09-21 10:31:17,548 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2020-09-21 10:31:17,548 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2020-09-21 10:31:17,548 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2020-09-21 10:31:17,548 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2020-09-21 10:31:17,548 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2020-09-21 10:31:17,549 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2020-09-21 10:31:17,549 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2020-09-21 10:31:17,549 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2020-09-21 10:31:17,549 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2020-09-21 10:31:17,549 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2020-09-21 10:31:17,550 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit14 [2020-09-21 10:31:17,550 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-09-21 10:31:17,550 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-09-21 10:31:17,550 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-09-21 10:31:17,551 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2020-09-21 10:31:17,551 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2020-09-21 10:31:17,551 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2020-09-21 10:31:17,551 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2020-09-21 10:31:17,551 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2020-09-21 10:31:17,552 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2020-09-21 10:31:17,552 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2020-09-21 10:31:17,552 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2020-09-21 10:31:17,552 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2020-09-21 10:31:17,552 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2020-09-21 10:31:17,552 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2020-09-21 10:31:17,553 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit14_triggered [2020-09-21 10:31:17,553 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-09-21 10:31:17,553 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-09-21 10:31:17,553 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-09-21 10:31:17,553 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-09-21 10:31:17,553 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-09-21 10:31:17,553 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-09-21 10:31:17,554 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-09-21 10:31:17,554 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-09-21 10:31:17,554 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-09-21 10:31:17,554 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-09-21 10:31:17,554 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-09-21 10:31:17,554 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-09-21 10:31:17,555 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-09-21 10:31:17,555 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 10:31:17,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 10:31:17,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 10:31:17,555 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-09-21 10:31:17,555 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-09-21 10:31:17,555 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-09-21 10:31:17,556 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-09-21 10:31:17,556 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2020-09-21 10:31:17,556 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2020-09-21 10:31:17,556 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2020-09-21 10:31:17,556 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2020-09-21 10:31:17,556 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2020-09-21 10:31:17,557 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2020-09-21 10:31:17,557 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2020-09-21 10:31:17,557 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2020-09-21 10:31:17,557 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2020-09-21 10:31:17,557 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2020-09-21 10:31:17,557 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2020-09-21 10:31:17,558 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit14_triggered [2020-09-21 10:31:17,558 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-09-21 10:31:17,558 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-09-21 10:31:17,558 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-09-21 10:31:17,558 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-09-21 10:31:17,558 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2020-09-21 10:31:17,559 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2020-09-21 10:31:17,559 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2020-09-21 10:31:17,559 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2020-09-21 10:31:17,559 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2020-09-21 10:31:17,559 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2020-09-21 10:31:17,559 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2020-09-21 10:31:17,560 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2020-09-21 10:31:17,560 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2020-09-21 10:31:17,560 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2020-09-21 10:31:17,560 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2020-09-21 10:31:17,560 INFO L130 BoogieDeclarations]: Found specification of procedure transmit14 [2020-09-21 10:31:17,560 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-09-21 10:31:17,561 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-09-21 10:31:17,561 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-09-21 10:31:17,561 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-09-21 10:31:17,561 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-09-21 10:31:17,561 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-09-21 10:31:17,561 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-09-21 10:31:17,562 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-09-21 10:31:17,562 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-09-21 10:31:17,562 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-09-21 10:31:17,562 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-09-21 10:31:17,562 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-09-21 10:31:17,562 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 10:31:17,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 10:31:17,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 10:31:18,958 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 10:31:18,958 INFO L295 CfgBuilder]: Removed 18 assume(true) statements. [2020-09-21 10:31:18,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 10:31:18 BoogieIcfgContainer [2020-09-21 10:31:18,968 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 10:31:18,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 10:31:18,969 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 10:31:18,973 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 10:31:18,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 10:31:16" (1/3) ... [2020-09-21 10:31:18,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea4e2df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 10:31:18, skipping insertion in model container [2020-09-21 10:31:18,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:17" (2/3) ... [2020-09-21 10:31:18,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea4e2df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 10:31:18, skipping insertion in model container [2020-09-21 10:31:18,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 10:31:18" (3/3) ... [2020-09-21 10:31:18,978 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.16.cil.c [2020-09-21 10:31:18,991 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 10:31:19,002 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 10:31:19,027 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 10:31:19,068 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 10:31:19,069 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 10:31:19,069 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 10:31:19,069 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 10:31:19,069 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 10:31:19,069 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 10:31:19,070 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 10:31:19,071 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 10:31:19,119 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states. [2020-09-21 10:31:19,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-09-21 10:31:19,141 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:31:19,142 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:31:19,143 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:31:19,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:31:19,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1383974208, now seen corresponding path program 1 times [2020-09-21 10:31:19,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:31:19,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1525881195] [2020-09-21 10:31:19,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:31:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:20,198 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:31:20,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:31:20,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:20,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:31:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:20,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:31:20,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:20,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 10:31:20,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:20,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 10:31:20,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:20,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-21 10:31:20,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:20,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:31:20,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:20,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 10:31:20,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:20,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 10:31:20,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:20,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 10:31:20,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:20,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:31:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:20,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-21 10:31:20,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:20,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 10:31:20,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:20,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 10:31:20,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:20,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-09-21 10:31:20,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:20,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-09-21 10:31:20,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:20,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-21 10:31:20,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:20,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-21 10:31:20,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:20,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-09-21 10:31:20,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:20,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-21 10:31:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:20,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-21 10:31:20,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:20,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-21 10:31:20,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:20,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-09-21 10:31:20,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:20,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:31:20,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1525881195] [2020-09-21 10:31:20,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:31:20,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-21 10:31:20,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943377417] [2020-09-21 10:31:20,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 10:31:20,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:31:20,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 10:31:20,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-21 10:31:20,953 INFO L87 Difference]: Start difference. First operand 526 states. Second operand 12 states. [2020-09-21 10:31:21,363 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-09-21 10:31:21,541 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-21 10:31:21,919 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-09-21 10:31:22,155 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-21 10:31:24,813 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-09-21 10:31:25,229 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2020-09-21 10:31:25,639 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-09-21 10:31:25,872 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-09-21 10:31:26,289 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-09-21 10:31:26,457 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-09-21 10:31:36,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:31:36,448 INFO L93 Difference]: Finished difference Result 1409 states and 2346 transitions. [2020-09-21 10:31:36,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-21 10:31:36,451 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 254 [2020-09-21 10:31:36,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:31:36,481 INFO L225 Difference]: With dead ends: 1409 [2020-09-21 10:31:36,482 INFO L226 Difference]: Without dead ends: 887 [2020-09-21 10:31:36,492 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2020-09-21 10:31:36,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2020-09-21 10:31:36,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 522. [2020-09-21 10:31:36,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 522 states. [2020-09-21 10:31:36,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 765 transitions. [2020-09-21 10:31:36,715 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 765 transitions. Word has length 254 [2020-09-21 10:31:36,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:31:36,716 INFO L479 AbstractCegarLoop]: Abstraction has 522 states and 765 transitions. [2020-09-21 10:31:36,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 10:31:36,716 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 765 transitions. [2020-09-21 10:31:36,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-09-21 10:31:36,723 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:31:36,724 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:31:36,724 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 10:31:36,725 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:31:36,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:31:36,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1062988672, now seen corresponding path program 1 times [2020-09-21 10:31:36,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:31:36,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1412034436] [2020-09-21 10:31:36,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:31:36,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:37,185 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:31:37,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:31:37,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:37,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:31:37,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:37,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:31:37,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:37,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 10:31:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:37,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 10:31:37,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:37,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-21 10:31:37,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:37,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:31:37,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:37,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 10:31:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:37,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 10:31:37,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:37,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 10:31:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:37,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:31:37,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:37,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-21 10:31:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:37,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 10:31:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:37,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 10:31:37,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:37,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-09-21 10:31:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:37,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-09-21 10:31:37,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:37,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-21 10:31:37,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:37,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-21 10:31:37,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:37,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-09-21 10:31:37,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:37,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-21 10:31:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:37,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-21 10:31:37,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:37,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-21 10:31:37,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:37,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-09-21 10:31:37,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:37,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:31:37,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1412034436] [2020-09-21 10:31:37,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:31:37,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-21 10:31:37,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283292192] [2020-09-21 10:31:37,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 10:31:37,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:31:37,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 10:31:37,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-21 10:31:37,834 INFO L87 Difference]: Start difference. First operand 522 states and 765 transitions. Second operand 12 states. [2020-09-21 10:31:38,217 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-09-21 10:31:38,403 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-21 10:31:38,809 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-09-21 10:31:38,997 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-21 10:31:41,768 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-09-21 10:31:42,185 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2020-09-21 10:31:42,404 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-09-21 10:31:42,820 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-09-21 10:31:43,027 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-09-21 10:31:43,398 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-09-21 10:31:52,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:31:52,569 INFO L93 Difference]: Finished difference Result 1386 states and 2171 transitions. [2020-09-21 10:31:52,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-21 10:31:52,570 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 254 [2020-09-21 10:31:52,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:31:52,580 INFO L225 Difference]: With dead ends: 1386 [2020-09-21 10:31:52,580 INFO L226 Difference]: Without dead ends: 888 [2020-09-21 10:31:52,585 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2020-09-21 10:31:52,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2020-09-21 10:31:52,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 527. [2020-09-21 10:31:52,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 527 states. [2020-09-21 10:31:52,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 769 transitions. [2020-09-21 10:31:52,708 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 769 transitions. Word has length 254 [2020-09-21 10:31:52,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:31:52,709 INFO L479 AbstractCegarLoop]: Abstraction has 527 states and 769 transitions. [2020-09-21 10:31:52,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 10:31:52,709 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 769 transitions. [2020-09-21 10:31:52,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-09-21 10:31:52,714 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:31:52,714 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:31:52,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 10:31:52,714 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:31:52,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:31:52,715 INFO L82 PathProgramCache]: Analyzing trace with hash 458447040, now seen corresponding path program 1 times [2020-09-21 10:31:52,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:31:52,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [320120069] [2020-09-21 10:31:52,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:31:52,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:53,207 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:31:53,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:31:53,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:53,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:31:53,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:53,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:31:53,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:53,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 10:31:53,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:53,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 10:31:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:53,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-21 10:31:53,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:53,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:31:53,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:53,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 10:31:53,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:53,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 10:31:53,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:53,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 10:31:53,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:53,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:31:53,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:53,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-21 10:31:53,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:53,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 10:31:53,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:53,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 10:31:53,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:53,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-09-21 10:31:53,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:53,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-09-21 10:31:53,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:53,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-21 10:31:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:53,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-21 10:31:53,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:53,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-09-21 10:31:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:53,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-21 10:31:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:53,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-21 10:31:53,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:53,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-21 10:31:53,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:53,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-09-21 10:31:53,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:53,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:31:53,724 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [320120069] [2020-09-21 10:31:53,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:31:53,725 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 10:31:53,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854627417] [2020-09-21 10:31:53,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 10:31:53,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:31:53,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 10:31:53,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-21 10:31:53,729 INFO L87 Difference]: Start difference. First operand 527 states and 769 transitions. Second operand 9 states. [2020-09-21 10:31:54,228 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-09-21 10:31:54,433 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-21 10:31:54,688 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-21 10:32:03,011 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-09-21 10:32:03,244 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-21 10:32:09,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:32:09,783 INFO L93 Difference]: Finished difference Result 2134 states and 3311 transitions. [2020-09-21 10:32:09,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-21 10:32:09,784 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 254 [2020-09-21 10:32:09,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:32:09,796 INFO L225 Difference]: With dead ends: 2134 [2020-09-21 10:32:09,796 INFO L226 Difference]: Without dead ends: 1639 [2020-09-21 10:32:09,800 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2020-09-21 10:32:09,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2020-09-21 10:32:09,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1040. [2020-09-21 10:32:09,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1040 states. [2020-09-21 10:32:09,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1532 transitions. [2020-09-21 10:32:09,985 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1532 transitions. Word has length 254 [2020-09-21 10:32:09,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:32:09,985 INFO L479 AbstractCegarLoop]: Abstraction has 1040 states and 1532 transitions. [2020-09-21 10:32:09,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 10:32:09,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1532 transitions. [2020-09-21 10:32:09,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-09-21 10:32:09,990 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:32:09,990 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:32:09,990 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 10:32:09,990 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:32:09,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:32:09,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1062661057, now seen corresponding path program 1 times [2020-09-21 10:32:09,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:32:09,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [615290845] [2020-09-21 10:32:09,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:32:10,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:10,530 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:32:10,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:32:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:10,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:32:10,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:10,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:32:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:10,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 10:32:10,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:10,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 10:32:10,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:10,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-21 10:32:10,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:10,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:32:10,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:10,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 10:32:10,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:10,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 10:32:10,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:10,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 10:32:10,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:10,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:32:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:10,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-21 10:32:10,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:10,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 10:32:10,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:10,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 10:32:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:10,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-09-21 10:32:10,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:10,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-09-21 10:32:10,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:10,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-21 10:32:10,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:10,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-21 10:32:10,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:10,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-09-21 10:32:10,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:10,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-21 10:32:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:10,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-21 10:32:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:10,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-21 10:32:10,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:10,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-09-21 10:32:10,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:11,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:32:11,075 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [615290845] [2020-09-21 10:32:11,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:32:11,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 10:32:11,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292627774] [2020-09-21 10:32:11,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 10:32:11,077 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:32:11,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 10:32:11,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-21 10:32:11,078 INFO L87 Difference]: Start difference. First operand 1040 states and 1532 transitions. Second operand 10 states. [2020-09-21 10:32:11,403 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-09-21 10:32:11,548 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-21 10:32:11,791 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 135