/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/systemc/transmitter.01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 01:10:36,462 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 01:10:36,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 01:10:36,503 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 01:10:36,504 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 01:10:36,505 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 01:10:36,507 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 01:10:36,509 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 01:10:36,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 01:10:36,513 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 01:10:36,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 01:10:36,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 01:10:36,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 01:10:36,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 01:10:36,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 01:10:36,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 01:10:36,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 01:10:36,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 01:10:36,524 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 01:10:36,527 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 01:10:36,529 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 01:10:36,533 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 01:10:36,535 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 01:10:36,537 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 01:10:36,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 01:10:36,556 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 01:10:36,556 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 01:10:36,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 01:10:36,560 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 01:10:36,561 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 01:10:36,562 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 01:10:36,563 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 01:10:36,569 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 01:10:36,570 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 01:10:36,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 01:10:36,571 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 01:10:36,572 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 01:10:36,572 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 01:10:36,572 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 01:10:36,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 01:10:36,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 01:10:36,577 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 01:10:36,626 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 01:10:36,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 01:10:36,628 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 01:10:36,628 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 01:10:36,628 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 01:10:36,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 01:10:36,629 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 01:10:36,629 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 01:10:36,629 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 01:10:36,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 01:10:36,630 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 01:10:36,630 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 01:10:36,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 01:10:36,630 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 01:10:36,630 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 01:10:36,631 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 01:10:36,631 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 01:10:36,631 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 01:10:36,631 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 01:10:36,631 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 01:10:36,632 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 01:10:36,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 01:10:36,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 01:10:36,632 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 01:10:36,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 01:10:36,633 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 01:10:36,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 01:10:36,633 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 01:10:36,633 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 01:10:36,634 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-28 01:10:37,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 01:10:37,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 01:10:37,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 01:10:37,057 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 01:10:37,057 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 01:10:37,058 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.01.cil.c [2020-10-28 01:10:37,153 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/afb061ca1/62a216edcefe48b2ac95c6ca92639e9c/FLAG1ab4d1954 [2020-10-28 01:10:37,746 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 01:10:37,747 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.01.cil.c [2020-10-28 01:10:37,761 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/afb061ca1/62a216edcefe48b2ac95c6ca92639e9c/FLAG1ab4d1954 [2020-10-28 01:10:38,113 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/afb061ca1/62a216edcefe48b2ac95c6ca92639e9c [2020-10-28 01:10:38,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 01:10:38,127 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 01:10:38,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 01:10:38,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 01:10:38,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 01:10:38,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 01:10:38" (1/1) ... [2020-10-28 01:10:38,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c80df92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:10:38, skipping insertion in model container [2020-10-28 01:10:38,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 01:10:38" (1/1) ... [2020-10-28 01:10:38,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 01:10:38,174 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 01:10:38,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 01:10:38,383 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 01:10:38,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 01:10:38,458 INFO L208 MainTranslator]: Completed translation [2020-10-28 01:10:38,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:10:38 WrapperNode [2020-10-28 01:10:38,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 01:10:38,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 01:10:38,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 01:10:38,460 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 01:10:38,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:10:38" (1/1) ... [2020-10-28 01:10:38,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:10:38" (1/1) ... [2020-10-28 01:10:38,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:10:38" (1/1) ... [2020-10-28 01:10:38,483 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:10:38" (1/1) ... [2020-10-28 01:10:38,493 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:10:38" (1/1) ... [2020-10-28 01:10:38,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:10:38" (1/1) ... [2020-10-28 01:10:38,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:10:38" (1/1) ... [2020-10-28 01:10:38,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 01:10:38,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 01:10:38,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 01:10:38,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 01:10:38,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:10:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 01:10:38,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 01:10:38,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 01:10:38,594 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 01:10:38,594 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-10-28 01:10:38,594 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-10-28 01:10:38,594 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-10-28 01:10:38,594 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-10-28 01:10:38,594 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-10-28 01:10:38,595 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-10-28 01:10:38,595 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-10-28 01:10:38,595 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-10-28 01:10:38,595 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-10-28 01:10:38,595 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-10-28 01:10:38,596 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-10-28 01:10:38,596 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-10-28 01:10:38,596 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-10-28 01:10:38,596 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-10-28 01:10:38,596 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-10-28 01:10:38,596 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-10-28 01:10:38,597 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-10-28 01:10:38,597 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-10-28 01:10:38,597 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 01:10:38,597 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 01:10:38,597 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 01:10:38,598 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 01:10:38,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 01:10:38,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 01:10:38,598 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-10-28 01:10:38,598 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-10-28 01:10:38,598 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-10-28 01:10:38,599 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-10-28 01:10:38,599 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-10-28 01:10:38,599 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-10-28 01:10:38,599 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-10-28 01:10:38,599 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-10-28 01:10:38,600 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-10-28 01:10:38,600 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-10-28 01:10:38,600 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-10-28 01:10:38,600 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-10-28 01:10:38,600 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-10-28 01:10:38,601 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-10-28 01:10:38,601 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-10-28 01:10:38,601 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-10-28 01:10:38,601 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-10-28 01:10:38,601 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-10-28 01:10:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 01:10:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 01:10:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 01:10:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 01:10:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 01:10:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 01:10:38,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 01:10:39,374 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 01:10:39,374 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-28 01:10:39,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 01:10:39 BoogieIcfgContainer [2020-10-28 01:10:39,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 01:10:39,381 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 01:10:39,382 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 01:10:39,386 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 01:10:39,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 01:10:38" (1/3) ... [2020-10-28 01:10:39,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16af7474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 01:10:39, skipping insertion in model container [2020-10-28 01:10:39,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:10:38" (2/3) ... [2020-10-28 01:10:39,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16af7474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 01:10:39, skipping insertion in model container [2020-10-28 01:10:39,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 01:10:39" (3/3) ... [2020-10-28 01:10:39,389 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.01.cil.c [2020-10-28 01:10:39,402 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 01:10:39,408 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 01:10:39,420 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 01:10:39,465 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 01:10:39,465 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 01:10:39,465 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 01:10:39,465 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 01:10:39,466 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 01:10:39,467 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 01:10:39,467 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 01:10:39,468 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 01:10:39,493 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states. [2020-10-28 01:10:39,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-28 01:10:39,510 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 01:10:39,512 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 01:10:39,513 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 01:10:39,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 01:10:39,523 INFO L82 PathProgramCache]: Analyzing trace with hash -154404590, now seen corresponding path program 1 times [2020-10-28 01:10:39,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 01:10:39,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [583900040] [2020-10-28 01:10:39,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 01:10:39,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:10:39,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:39,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:40,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:40,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:40,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:40,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:40,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:44,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:10:44,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 01:10:44,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 01:10:44,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-28 01:10:44,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:10:44,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 01:10:44,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-28 01:10:44,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 01:10:44,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 01:10:44,937 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-10-28 01:10:44,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 01:10:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:10:44,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:44,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:10:44,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 01:10:44,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:10:44,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 01:10:44,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:10:44,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:10:44,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:10:44,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:10:44,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:10:45,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 01:10:45,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:10:45,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:45,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:10:45,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 01:10:45,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:10:45,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 01:10:45,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:10:45,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:10:45,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:10:45,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:10:45,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:10:45,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 01:10:45,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:10:45,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:45,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:10:45,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 01:10:45,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:10:45,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:10:45,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:10:45,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:10:45,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:10:45,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:10:45,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 01:10:45,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 01:10:45,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:10:45,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:45,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:10:45,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 01:10:45,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:10:45,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 01:10:45,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:10:45,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:10:45,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:10:45,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:10:45,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 01:10:45,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 01:10:45,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:10:45,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:45,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:10:45,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:10:45,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:10:45,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 01:10:45,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:10:45,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:10:45,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:10:45,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:10:45,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 01:10:45,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-28 01:10:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:10:45,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:45,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:45,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:10:45,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 01:10:45,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 01:10:45,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-28 01:10:45,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:10:45,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 01:10:45,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 01:10:45,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 01:10:45,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:10:45,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 01:10:45,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:10:45,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:45,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:10:45,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:10:45,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:10:45,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 01:10:45,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:10:45,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:10:45,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:10:45,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:10:45,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:10:45,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 01:10:45,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:10:45,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:45,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:10:45,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:10:45,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:10:45,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 01:10:45,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:10:45,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 01:10:45,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:10:45,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 01:10:45,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:10:45,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-28 01:10:45,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:10:45,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:45,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:10:45,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:10:45,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:10:45,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 01:10:45,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:10:45,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:10:45,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 01:10:45,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:10:45,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:10:45,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-28 01:10:45,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:10:45,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:45,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:10:45,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:10:45,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:10:45,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 01:10:45,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:10:45,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:10:45,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 01:10:45,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:10:45,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:10:45,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 01:10:45,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [583900040] [2020-10-28 01:10:45,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 01:10:45,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 01:10:45,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550015230] [2020-10-28 01:10:45,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 01:10:45,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 01:10:45,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 01:10:45,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-28 01:10:45,455 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 10 states. [2020-10-28 01:10:46,365 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-10-28 01:10:46,521 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-10-28 01:10:46,756 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-10-28 01:10:48,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 01:10:48,995 INFO L93 Difference]: Finished difference Result 341 states and 512 transitions. [2020-10-28 01:10:48,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 01:10:48,998 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 76 [2020-10-28 01:10:48,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 01:10:49,014 INFO L225 Difference]: With dead ends: 341 [2020-10-28 01:10:49,014 INFO L226 Difference]: Without dead ends: 206 [2020-10-28 01:10:49,019 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2020-10-28 01:10:49,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-10-28 01:10:49,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 136. [2020-10-28 01:10:49,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-28 01:10:49,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 173 transitions. [2020-10-28 01:10:49,103 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 173 transitions. Word has length 76 [2020-10-28 01:10:49,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 01:10:49,104 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 173 transitions. [2020-10-28 01:10:49,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 01:10:49,104 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 173 transitions. [2020-10-28 01:10:49,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-28 01:10:49,108 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 01:10:49,108 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 01:10:49,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 01:10:49,109 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 01:10:49,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 01:10:49,110 INFO L82 PathProgramCache]: Analyzing trace with hash 547195284, now seen corresponding path program 1 times [2020-10-28 01:10:49,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 01:10:49,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1685711745] [2020-10-28 01:10:49,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 01:10:49,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:10:49,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:49,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:49,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:49,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:49,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:49,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:50,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:50,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:54,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:10:54,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 01:10:54,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-28 01:10:54,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-28 01:10:54,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:10:54,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:10:54,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-28 01:10:54,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 01:10:54,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:10:54,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 01:10:54,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:10:54,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:54,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:10:54,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 01:10:54,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:10:54,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 01:10:54,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:10:54,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:10:54,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:10:54,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:10:54,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 01:10:54,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 01:10:54,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:10:54,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:54,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:10:54,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 01:10:54,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:10:54,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 01:10:54,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:10:54,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:10:54,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:10:54,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:10:54,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:10:54,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 01:10:54,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:10:54,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:54,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:10:54,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 01:10:54,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:10:54,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:10:54,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:10:54,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:10:54,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:10:54,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:10:54,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:10:54,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 01:10:54,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:10:54,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:54,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:10:54,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 01:10:54,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:10:54,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:10:54,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:10:54,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:10:54,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:10:54,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:10:54,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:10:54,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 01:10:54,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:10:54,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:54,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:10:54,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:10:54,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:10:54,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 01:10:54,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:10:54,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:10:54,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:10:54,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:10:54,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:10:54,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-28 01:10:54,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:10:54,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:54,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:54,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:10:54,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 01:10:54,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 01:10:54,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 01:10:54,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:10:54,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 01:10:54,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 01:10:54,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 01:10:54,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:10:54,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 01:10:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:10:54,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:54,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:10:54,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:10:54,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:10:54,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 01:10:54,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:10:54,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 01:10:54,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:10:54,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 01:10:54,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:10:54,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 01:10:54,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:10:54,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:54,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:10:54,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:10:54,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:10:54,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:10:54,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:10:54,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:10:54,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 01:10:54,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:10:54,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:10:54,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-28 01:10:54,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:10:54,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:54,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:10:54,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:10:54,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:10:54,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:10:54,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:10:54,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:10:54,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:10:54,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:10:54,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:10:54,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-28 01:10:54,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:10:54,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:10:54,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:10:54,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:10:54,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:10:54,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 01:10:54,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:10:54,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:10:54,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:10:54,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 01:10:54,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:10:54,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 01:10:54,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1685711745] [2020-10-28 01:10:54,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 01:10:54,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-28 01:10:54,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510217316] [2020-10-28 01:10:54,507 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 01:10:54,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 01:10:54,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 01:10:54,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-28 01:10:54,508 INFO L87 Difference]: Start difference. First operand 136 states and 173 transitions. Second operand 11 states. [2020-10-28 01:10:54,666 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-10-28 01:10:55,538 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-10-28 01:10:55,687 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-28 01:10:55,842 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-10-28 01:10:56,016 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-28 01:10:56,176 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-28 01:10:56,339 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-28 01:10:56,497 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-28 01:10:56,626 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-28 01:10:59,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 01:10:59,906 INFO L93 Difference]: Finished difference Result 505 states and 762 transitions. [2020-10-28 01:10:59,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-28 01:10:59,923 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 76 [2020-10-28 01:10:59,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 01:10:59,937 INFO L225 Difference]: With dead ends: 505 [2020-10-28 01:10:59,938 INFO L226 Difference]: Without dead ends: 389 [2020-10-28 01:10:59,945 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-28 01:10:59,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-10-28 01:11:00,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 263. [2020-10-28 01:11:00,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-10-28 01:11:00,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 350 transitions. [2020-10-28 01:11:00,053 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 350 transitions. Word has length 76 [2020-10-28 01:11:00,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 01:11:00,054 INFO L481 AbstractCegarLoop]: Abstraction has 263 states and 350 transitions. [2020-10-28 01:11:00,054 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 01:11:00,054 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 350 transitions. [2020-10-28 01:11:00,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-28 01:11:00,069 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 01:11:00,069 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] [2020-10-28 01:11:00,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 01:11:00,070 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 01:11:00,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 01:11:00,070 INFO L82 PathProgramCache]: Analyzing trace with hash -2016875195, now seen corresponding path program 1 times [2020-10-28 01:11:00,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 01:11:00,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [490445465] [2020-10-28 01:11:00,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 01:11:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:00,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:00,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:00,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:00,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:00,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:01,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:01,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:01,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:04,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:04,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 01:11:04,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-28 01:11:04,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4164 [2020-10-28 01:11:04,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:04,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 01:11:04,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-28 01:11:04,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-28 01:11:04,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:04,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 01:11:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:04,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:04,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:04,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 01:11:04,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:04,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 01:11:04,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:04,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:04,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:04,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:04,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:04,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 01:11:04,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:04,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:04,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:04,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 01:11:04,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:04,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:04,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:04,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:04,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:04,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:04,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:04,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 01:11:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:04,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:04,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:04,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 01:11:04,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:04,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 01:11:04,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:04,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:04,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:04,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:04,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:04,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 01:11:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:04,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:04,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:04,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 01:11:04,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:04,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:04,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:04,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:04,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:04,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:04,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:04,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 01:11:04,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:04,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:04,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:04,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:04,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:04,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 01:11:04,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:04,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:04,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:04,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:04,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:04,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-28 01:11:04,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:04,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:04,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:04,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 01:11:04,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:04,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 01:11:04,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:04,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:11:04,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:04,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 01:11:04,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:04,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 01:11:04,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:04,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:04,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:04,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:11:04,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:04,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:04,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:04,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:04,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:04,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:04,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:04,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 01:11:04,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:04,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:04,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:04,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:11:04,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:04,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 01:11:04,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:04,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:11:04,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:04,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 01:11:04,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:04,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-28 01:11:04,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:04,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:04,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:04,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:04,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:04,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 01:11:04,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:04,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:11:04,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:04,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 01:11:04,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:04,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-28 01:11:04,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:04,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:04,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:04,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:04,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:04,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 01:11:04,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:04,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:11:04,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:04,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 01:11:04,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:04,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 01:11:04,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [490445465] [2020-10-28 01:11:04,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 01:11:04,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 01:11:04,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883040949] [2020-10-28 01:11:04,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 01:11:04,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 01:11:04,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 01:11:04,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 01:11:04,620 INFO L87 Difference]: Start difference. First operand 263 states and 350 transitions. Second operand 7 states. [2020-10-28 01:11:07,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 01:11:07,566 INFO L93 Difference]: Finished difference Result 923 states and 1414 transitions. [2020-10-28 01:11:07,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 01:11:07,568 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2020-10-28 01:11:07,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 01:11:07,580 INFO L225 Difference]: With dead ends: 923 [2020-10-28 01:11:07,580 INFO L226 Difference]: Without dead ends: 685 [2020-10-28 01:11:07,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-10-28 01:11:07,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2020-10-28 01:11:07,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 507. [2020-10-28 01:11:07,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 507 states. [2020-10-28 01:11:07,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 701 transitions. [2020-10-28 01:11:07,695 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 701 transitions. Word has length 77 [2020-10-28 01:11:07,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 01:11:07,696 INFO L481 AbstractCegarLoop]: Abstraction has 507 states and 701 transitions. [2020-10-28 01:11:07,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 01:11:07,696 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 701 transitions. [2020-10-28 01:11:07,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-28 01:11:07,699 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 01:11:07,699 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 01:11:07,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 01:11:07,699 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 01:11:07,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 01:11:07,700 INFO L82 PathProgramCache]: Analyzing trace with hash -1113067280, now seen corresponding path program 1 times [2020-10-28 01:11:07,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 01:11:07,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1026800876] [2020-10-28 01:11:07,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 01:11:07,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:07,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:07,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:07,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:07,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:07,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:07,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:08,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:08,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:08,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:12,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:12,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 01:11:12,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-28 01:11:12,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4820 [2020-10-28 01:11:12,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:12,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:11:12,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-28 01:11:12,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 01:11:12,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:12,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 01:11:12,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:12,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:12,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:12,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 01:11:12,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:12,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 01:11:12,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:12,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:12,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:12,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:12,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:12,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 01:11:12,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:12,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:12,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:12,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 01:11:12,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:12,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:12,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:12,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:12,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:12,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:12,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:12,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 01:11:12,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:12,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:12,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:12,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 01:11:12,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:12,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 01:11:12,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:12,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:12,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:12,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:12,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:12,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 01:11:12,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:12,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:12,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:12,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 01:11:12,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:12,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 01:11:12,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:12,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:12,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:12,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:12,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:12,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 01:11:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:12,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:12,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:12,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:12,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:12,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 01:11:12,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:12,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:12,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:12,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:12,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:12,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-28 01:11:12,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:12,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:12,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:12,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 01:11:12,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:12,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 01:11:12,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:12,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:12,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:12,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:12,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:12,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 01:11:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:12,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:12,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:12,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:11:12,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:12,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:12,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:12,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:12,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:12,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:12,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 01:11:12,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 01:11:12,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:12,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:12,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:12,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:11:12,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:12,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:12,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:12,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:12,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:12,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:12,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:12,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-28 01:11:12,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:12,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:12,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:12,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:12,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:12,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:12,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:12,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:12,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:12,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:12,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:12,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-28 01:11:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:12,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:12,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:12,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:12,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:12,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:12,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:12,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:12,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:12,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:12,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:12,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-28 01:11:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:12,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:12,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:12,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:12,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:12,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 01:11:12,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:12,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:11:12,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:12,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 01:11:12,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:12,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 01:11:12,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:12,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:12,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:12,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:12,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:12,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 01:11:12,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:12,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:11:12,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:12,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 01:11:12,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:12,869 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 01:11:12,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1026800876] [2020-10-28 01:11:12,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 01:11:12,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 01:11:12,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738613611] [2020-10-28 01:11:12,871 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 01:11:12,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 01:11:12,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 01:11:12,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 01:11:12,872 INFO L87 Difference]: Start difference. First operand 507 states and 701 transitions. Second operand 8 states. [2020-10-28 01:11:16,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 01:11:16,908 INFO L93 Difference]: Finished difference Result 1894 states and 3018 transitions. [2020-10-28 01:11:16,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-28 01:11:16,910 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 96 [2020-10-28 01:11:16,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 01:11:16,922 INFO L225 Difference]: With dead ends: 1894 [2020-10-28 01:11:16,922 INFO L226 Difference]: Without dead ends: 1084 [2020-10-28 01:11:16,928 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-10-28 01:11:16,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2020-10-28 01:11:17,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 827. [2020-10-28 01:11:17,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 827 states. [2020-10-28 01:11:17,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1187 transitions. [2020-10-28 01:11:17,040 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1187 transitions. Word has length 96 [2020-10-28 01:11:17,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 01:11:17,041 INFO L481 AbstractCegarLoop]: Abstraction has 827 states and 1187 transitions. [2020-10-28 01:11:17,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 01:11:17,041 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1187 transitions. [2020-10-28 01:11:17,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-28 01:11:17,045 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 01:11:17,045 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 01:11:17,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 01:11:17,046 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 01:11:17,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 01:11:17,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1910028710, now seen corresponding path program 1 times [2020-10-28 01:11:17,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 01:11:17,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1365435090] [2020-10-28 01:11:17,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 01:11:17,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:17,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:17,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:17,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:17,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:17,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:17,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:17,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:17,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:19,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:19,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:19,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:19,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:22,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:22,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 01:11:22,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-28 01:11:22,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-28 01:11:22,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:22,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:11:22,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 123 [2020-10-28 01:11:22,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 01:11:22,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:22,194 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-10-28 01:11:22,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 01:11:22,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:22,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:22,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:22,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 01:11:22,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:22,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 01:11:22,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:22,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:22,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:22,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:22,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:22,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 01:11:22,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:22,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:22,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:22,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 01:11:22,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:22,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:22,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:22,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:22,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:22,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:22,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:22,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 01:11:22,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:22,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:22,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:22,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 01:11:22,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:22,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 01:11:22,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:22,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:22,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:22,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:22,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:22,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 01:11:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:22,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:22,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:22,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 01:11:22,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:22,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:22,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:22,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:22,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:22,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:22,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:22,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 01:11:22,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:22,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:22,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:22,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:22,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:22,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:22,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:22,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:22,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:22,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:22,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:22,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-28 01:11:22,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:22,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:22,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:22,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 01:11:22,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:22,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 01:11:22,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:22,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:22,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:22,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:22,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:22,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 01:11:22,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:22,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:22,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:22,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:11:22,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:22,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:22,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:22,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:22,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:22,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:22,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:22,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 01:11:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:22,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:22,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:22,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:11:22,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:22,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:22,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:22,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:22,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:22,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:22,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:22,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-28 01:11:22,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:22,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:22,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:22,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:22,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:22,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:22,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:22,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:22,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:22,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:22,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:22,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-28 01:11:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:22,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:22,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:22,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:22,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:22,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:22,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:22,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:22,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:22,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:22,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:22,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-28 01:11:22,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:22,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:22,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:22,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:22,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:22,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:22,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:22,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:22,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:22,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:22,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:22,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 01:11:22,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:22,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:22,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:22,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:22,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:22,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:22,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:22,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:22,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:22,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:22,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:22,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-28 01:11:22,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:22,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:22,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:22,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-28 01:11:22,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:22,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 01:11:22,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:22,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:11:22,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 01:11:22,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 01:11:22,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:22,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 01:11:22,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:22,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:22,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:22,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-28 01:11:22,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:22,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 01:11:22,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:22,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:11:22,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-28 01:11:22,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 01:11:22,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:22,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 01:11:22,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:22,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:22,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:22,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 01:11:22,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:22,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 01:11:22,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:22,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:11:22,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:22,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 01:11:22,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:22,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 01:11:22,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:22,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:22,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:22,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:11:22,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:22,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 01:11:22,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:22,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:11:22,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:22,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 01:11:22,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:22,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 01:11:22,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:22,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:22,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:22,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:11:22,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:22,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 01:11:22,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:22,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:11:22,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:22,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 01:11:22,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:22,467 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-28 01:11:22,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1365435090] [2020-10-28 01:11:22,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 01:11:22,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 01:11:22,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222595380] [2020-10-28 01:11:22,469 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 01:11:22,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 01:11:22,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 01:11:22,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-28 01:11:22,470 INFO L87 Difference]: Start difference. First operand 827 states and 1187 transitions. Second operand 10 states. [2020-10-28 01:11:27,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 01:11:27,409 INFO L93 Difference]: Finished difference Result 2684 states and 4282 transitions. [2020-10-28 01:11:27,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-28 01:11:27,410 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 130 [2020-10-28 01:11:27,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 01:11:27,426 INFO L225 Difference]: With dead ends: 2684 [2020-10-28 01:11:27,427 INFO L226 Difference]: Without dead ends: 1882 [2020-10-28 01:11:27,435 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2020-10-28 01:11:27,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1882 states. [2020-10-28 01:11:27,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1882 to 1453. [2020-10-28 01:11:27,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1453 states. [2020-10-28 01:11:27,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 2089 transitions. [2020-10-28 01:11:27,601 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 2089 transitions. Word has length 130 [2020-10-28 01:11:27,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 01:11:27,602 INFO L481 AbstractCegarLoop]: Abstraction has 1453 states and 2089 transitions. [2020-10-28 01:11:27,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 01:11:27,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 2089 transitions. [2020-10-28 01:11:27,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-28 01:11:27,606 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 01:11:27,606 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 01:11:27,607 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 01:11:27,607 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 01:11:27,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 01:11:27,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1662072063, now seen corresponding path program 1 times [2020-10-28 01:11:27,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 01:11:27,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [844944449] [2020-10-28 01:11:27,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 01:11:27,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:27,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:27,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:27,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:27,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:27,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:27,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:27,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:27,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:28,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:28,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:30,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:30,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 01:11:30,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-28 01:11:30,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3046 [2020-10-28 01:11:30,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:30,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:11:30,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-28 01:11:30,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 01:11:30,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:30,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 01:11:30,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:30,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:30,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:30,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 01:11:30,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:30,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 01:11:30,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:30,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:30,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:30,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:30,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:30,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 01:11:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:30,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:30,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:30,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 01:11:30,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:30,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:30,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:30,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:30,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:30,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:30,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 01:11:30,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 01:11:30,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:30,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:30,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:30,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 01:11:30,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:30,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 01:11:30,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:30,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:30,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:30,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:30,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 01:11:30,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 01:11:30,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:30,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:30,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:30,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 01:11:30,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:30,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:30,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:30,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:30,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:30,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:30,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:30,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 01:11:30,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:30,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:30,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:30,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:30,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:30,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 01:11:30,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:30,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:30,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:30,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:30,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:30,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-28 01:11:30,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:30,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:30,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:30,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 01:11:30,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:30,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 01:11:30,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:30,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:30,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:30,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:30,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:30,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 01:11:30,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:30,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:30,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:30,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:11:30,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:30,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:30,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:30,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:30,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:30,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:30,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 01:11:30,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 01:11:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:30,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:30,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:30,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:11:30,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:30,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:30,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:30,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:30,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:30,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:30,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 01:11:30,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-28 01:11:30,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:30,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:30,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:30,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:30,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:30,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 01:11:30,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:30,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:30,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:30,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:30,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 01:11:30,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-28 01:11:30,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:30,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:30,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:30,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:11:30,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:30,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:30,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:30,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:30,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:30,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:30,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 01:11:30,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-28 01:11:30,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:30,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:30,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:30,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:30,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:30,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 01:11:30,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:30,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:11:30,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:30,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 01:11:30,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:30,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 01:11:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:30,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:30,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:30,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:30,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:30,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 01:11:30,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:30,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:11:30,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 01:11:30,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 01:11:30,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 01:11:31,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-28 01:11:31,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:31,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:31,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:31,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-28 01:11:31,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:31,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 01:11:31,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:31,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:31,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-28 01:11:31,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:31,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:31,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 01:11:31,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:31,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:31,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:31,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-28 01:11:31,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:31,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 01:11:31,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:31,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:31,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:31,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:31,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:31,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 01:11:31,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:31,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:31,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:31,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 01:11:31,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:31,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 01:11:31,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:31,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:31,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:31,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:31,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 01:11:31,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 01:11:31,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:31,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:31,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:31,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:11:31,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:31,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 01:11:31,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:31,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:31,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:31,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:31,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 01:11:31,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 01:11:31,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:31,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:31,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:31,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:11:31,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:31,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 01:11:31,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:31,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:31,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:31,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:31,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 01:11:31,173 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-28 01:11:31,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [844944449] [2020-10-28 01:11:31,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 01:11:31,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 01:11:31,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593196599] [2020-10-28 01:11:31,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 01:11:31,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 01:11:31,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 01:11:31,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-28 01:11:31,178 INFO L87 Difference]: Start difference. First operand 1453 states and 2089 transitions. Second operand 10 states. [2020-10-28 01:11:31,346 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-10-28 01:11:36,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 01:11:36,020 INFO L93 Difference]: Finished difference Result 2952 states and 4331 transitions. [2020-10-28 01:11:36,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-28 01:11:36,025 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 130 [2020-10-28 01:11:36,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 01:11:36,038 INFO L225 Difference]: With dead ends: 2952 [2020-10-28 01:11:36,038 INFO L226 Difference]: Without dead ends: 1726 [2020-10-28 01:11:36,047 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2020-10-28 01:11:36,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1726 states. [2020-10-28 01:11:36,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1726 to 1378. [2020-10-28 01:11:36,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1378 states. [2020-10-28 01:11:36,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 1816 transitions. [2020-10-28 01:11:36,188 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 1816 transitions. Word has length 130 [2020-10-28 01:11:36,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 01:11:36,189 INFO L481 AbstractCegarLoop]: Abstraction has 1378 states and 1816 transitions. [2020-10-28 01:11:36,189 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 01:11:36,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 1816 transitions. [2020-10-28 01:11:36,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-28 01:11:36,192 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 01:11:36,192 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 01:11:36,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 01:11:36,192 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 01:11:36,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 01:11:36,193 INFO L82 PathProgramCache]: Analyzing trace with hash 55616479, now seen corresponding path program 1 times [2020-10-28 01:11:36,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 01:11:36,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [31845485] [2020-10-28 01:11:36,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 01:11:36,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:36,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:36,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:36,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:36,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:36,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:41,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:41,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 01:11:41,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 01:11:41,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-28 01:11:41,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:41,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 01:11:41,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-28 01:11:41,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 01:11:41,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:41,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 01:11:41,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:41,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:41,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:41,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 01:11:41,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:41,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 01:11:41,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:41,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:41,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:41,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:41,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 01:11:41,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 01:11:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:41,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:41,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:41,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 01:11:41,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:41,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:41,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:41,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:41,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:41,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:41,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 01:11:41,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 01:11:41,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:41,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:41,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:41,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 01:11:41,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:41,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:41,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:41,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:41,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:41,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:41,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:41,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 01:11:41,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:41,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:41,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:41,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 01:11:41,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:41,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:41,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:41,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:41,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:41,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:41,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:41,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 01:11:41,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:41,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:41,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:41,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:41,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:41,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 01:11:41,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:41,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:41,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:41,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:41,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:41,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-28 01:11:41,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:41,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:41,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:41,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 01:11:41,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:41,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 01:11:41,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:41,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 01:11:41,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 01:11:41,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 01:11:41,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 01:11:41,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 01:11:41,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:41,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:41,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:41,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:11:41,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:41,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 01:11:41,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:41,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 01:11:41,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:41,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 01:11:41,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 01:11:41,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 01:11:41,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:41,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:41,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:41,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:11:41,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:41,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 01:11:41,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:41,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:41,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 01:11:41,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:41,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:41,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-28 01:11:41,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:41,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:41,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:41,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:41,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:41,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 01:11:41,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:41,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:41,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 01:11:41,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:41,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:41,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-28 01:11:41,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:41,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:41,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:41,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:41,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:41,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 01:11:41,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:41,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:41,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 01:11:41,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:41,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 01:11:41,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-28 01:11:41,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:41,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:41,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:41,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:41,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:41,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 01:11:41,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:41,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:41,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 01:11:41,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:41,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 01:11:41,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 01:11:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:41,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:41,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:41,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:41,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:41,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 01:11:41,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:41,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:41,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 01:11:41,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:41,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:41,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-28 01:11:41,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:41,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:41,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:41,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-28 01:11:41,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:41,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 01:11:41,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:41,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:41,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-28 01:11:41,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:41,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:41,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 01:11:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:41,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:41,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:41,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-28 01:11:41,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:41,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 01:11:41,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:41,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:41,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:41,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:41,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:41,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 01:11:41,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:41,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:41,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:41,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 01:11:41,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:41,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 01:11:41,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:41,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:41,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:41,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:41,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:41,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 01:11:41,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:41,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:41,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:41,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:11:41,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:41,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:41,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:41,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:41,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:41,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:41,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:41,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 01:11:41,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:41,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:41,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:41,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:11:41,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:41,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:41,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:41,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:41,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:41,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:41,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:41,890 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-28 01:11:41,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [31845485] [2020-10-28 01:11:41,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 01:11:41,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-28 01:11:41,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549296670] [2020-10-28 01:11:41,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 01:11:41,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 01:11:41,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 01:11:41,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-28 01:11:41,894 INFO L87 Difference]: Start difference. First operand 1378 states and 1816 transitions. Second operand 12 states. [2020-10-28 01:11:42,680 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-10-28 01:11:42,826 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-10-28 01:11:42,964 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-28 01:11:45,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 01:11:45,629 INFO L93 Difference]: Finished difference Result 2863 states and 3965 transitions. [2020-10-28 01:11:45,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-28 01:11:45,630 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 130 [2020-10-28 01:11:45,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 01:11:45,644 INFO L225 Difference]: With dead ends: 2863 [2020-10-28 01:11:45,644 INFO L226 Difference]: Without dead ends: 1711 [2020-10-28 01:11:45,651 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-28 01:11:45,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1711 states. [2020-10-28 01:11:45,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1711 to 1367. [2020-10-28 01:11:45,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1367 states. [2020-10-28 01:11:45,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1779 transitions. [2020-10-28 01:11:45,814 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1779 transitions. Word has length 130 [2020-10-28 01:11:45,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 01:11:45,814 INFO L481 AbstractCegarLoop]: Abstraction has 1367 states and 1779 transitions. [2020-10-28 01:11:45,814 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-28 01:11:45,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1779 transitions. [2020-10-28 01:11:45,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-28 01:11:45,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 01:11:45,819 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 01:11:45,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 01:11:45,819 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 01:11:45,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 01:11:45,820 INFO L82 PathProgramCache]: Analyzing trace with hash 729722591, now seen corresponding path program 1 times [2020-10-28 01:11:45,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 01:11:45,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1295417278] [2020-10-28 01:11:45,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 01:11:45,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:45,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:45,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:45,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:46,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:46,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 01:11:46,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 01:11:46,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 679 [2020-10-28 01:11:46,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:46,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 01:11:46,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 01:11:46,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 01:11:46,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:46,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 01:11:46,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:46,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:46,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:46,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 01:11:46,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:46,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 01:11:46,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:46,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:11:46,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:46,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 01:11:46,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:46,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 01:11:46,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:46,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:46,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:46,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 01:11:46,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:46,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 01:11:46,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:46,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:11:46,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:46,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 01:11:46,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:46,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 01:11:46,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:46,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:46,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:46,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 01:11:46,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:46,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:46,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:46,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:11:46,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:46,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 01:11:46,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:46,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 01:11:46,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:46,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:46,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:46,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 01:11:46,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:46,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 01:11:46,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:46,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:11:46,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:46,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 01:11:46,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:46,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 01:11:46,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:46,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:46,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:46,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:46,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:46,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 01:11:46,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:46,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 01:11:46,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 01:11:46,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 01:11:46,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:46,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-28 01:11:46,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:46,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:46,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:46,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 01:11:46,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:46,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 01:11:46,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:46,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:11:46,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:46,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-28 01:11:46,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:46,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 01:11:46,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:46,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:46,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:46,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:11:46,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:46,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:46,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:46,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:46,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:46,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:46,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:46,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 01:11:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:46,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:46,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:46,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:11:46,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:46,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:46,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:46,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:46,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:46,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:46,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:46,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-28 01:11:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:46,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:46,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:46,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:46,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:46,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 01:11:46,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:46,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 01:11:46,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 01:11:46,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 01:11:46,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:46,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-28 01:11:46,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:46,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:46,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:46,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:46,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:46,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 01:11:46,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:46,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:46,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 01:11:46,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:46,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:46,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-28 01:11:46,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:46,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:46,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:46,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:46,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:46,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:46,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:46,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:46,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 01:11:46,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:46,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:46,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 01:11:46,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:46,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:46,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:46,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:46,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:46,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:46,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:46,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:46,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 01:11:46,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:46,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:47,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-28 01:11:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:47,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:47,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:47,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-28 01:11:47,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:47,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 01:11:47,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:47,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:47,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-28 01:11:47,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:47,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:47,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 01:11:47,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:47,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:47,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:47,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-28 01:11:47,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:47,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 01:11:47,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:47,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:47,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:47,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:47,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:47,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 01:11:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:47,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:47,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:47,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 01:11:47,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:47,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 01:11:47,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:47,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:47,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:47,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:47,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:47,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 01:11:47,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:47,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:47,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:47,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:11:47,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:47,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:47,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:47,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:47,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:47,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:47,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:47,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 01:11:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:47,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:47,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:47,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:11:47,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:47,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 01:11:47,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:47,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:47,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:47,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:47,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:47,134 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-28 01:11:47,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1295417278] [2020-10-28 01:11:47,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 01:11:47,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-28 01:11:47,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068636489] [2020-10-28 01:11:47,136 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 01:11:47,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 01:11:47,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 01:11:47,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-10-28 01:11:47,137 INFO L87 Difference]: Start difference. First operand 1367 states and 1779 transitions. Second operand 12 states. [2020-10-28 01:11:49,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 01:11:49,767 INFO L93 Difference]: Finished difference Result 2996 states and 4067 transitions. [2020-10-28 01:11:49,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-28 01:11:49,767 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 130 [2020-10-28 01:11:49,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 01:11:49,777 INFO L225 Difference]: With dead ends: 2996 [2020-10-28 01:11:49,777 INFO L226 Difference]: Without dead ends: 1409 [2020-10-28 01:11:49,782 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=183, Invalid=467, Unknown=0, NotChecked=0, Total=650 [2020-10-28 01:11:49,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1409 states. [2020-10-28 01:11:49,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1409 to 1084. [2020-10-28 01:11:49,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1084 states. [2020-10-28 01:11:49,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1322 transitions. [2020-10-28 01:11:49,895 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1322 transitions. Word has length 130 [2020-10-28 01:11:49,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 01:11:49,895 INFO L481 AbstractCegarLoop]: Abstraction has 1084 states and 1322 transitions. [2020-10-28 01:11:49,895 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-28 01:11:49,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1322 transitions. [2020-10-28 01:11:49,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-28 01:11:49,898 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 01:11:49,898 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 01:11:49,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 01:11:49,898 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 01:11:49,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 01:11:49,899 INFO L82 PathProgramCache]: Analyzing trace with hash 969962337, now seen corresponding path program 1 times [2020-10-28 01:11:49,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 01:11:49,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [312932965] [2020-10-28 01:11:49,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 01:11:49,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:49,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:49,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:50,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:50,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 01:11:50,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 01:11:50,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 466 [2020-10-28 01:11:50,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:50,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 01:11:50,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 01:11:50,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-28 01:11:50,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:50,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 01:11:50,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:50,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:50,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:50,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 01:11:50,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:50,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 01:11:50,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:50,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:11:50,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:50,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 01:11:50,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:50,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 01:11:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:50,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:50,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:50,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 01:11:50,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:50,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:50,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:50,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:11:50,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:50,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 01:11:50,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:50,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 01:11:50,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:50,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:50,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:50,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 01:11:50,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:50,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:50,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:50,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:11:50,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:50,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 01:11:50,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:50,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 01:11:50,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:50,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:50,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:50,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 01:11:50,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:50,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 01:11:50,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:50,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:11:50,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:50,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 01:11:50,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:50,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 01:11:50,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:50,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:50,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:50,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:50,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:50,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 01:11:50,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:50,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 01:11:50,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 01:11:50,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 01:11:50,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:50,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-28 01:11:50,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:50,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:50,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:50,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 01:11:50,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:50,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 01:11:50,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:50,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:50,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-28 01:11:50,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:50,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:50,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 01:11:50,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:50,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:50,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:50,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:11:50,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:50,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:50,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:50,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:50,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:50,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:50,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:50,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 01:11:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:50,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:50,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:50,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:11:50,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:50,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:50,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:50,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:50,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:50,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:50,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:50,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-28 01:11:50,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:50,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:50,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:50,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:50,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:50,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 01:11:50,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:50,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:50,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 01:11:50,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:50,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:50,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-28 01:11:50,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:50,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:50,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:50,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:50,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:50,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:50,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:50,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:50,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 01:11:50,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:50,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:50,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-28 01:11:50,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:50,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:50,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:50,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:50,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:50,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:50,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:50,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:50,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 01:11:50,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:50,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:50,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 01:11:50,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:50,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:50,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:50,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:50,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:50,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:50,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:50,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:50,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 01:11:50,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:50,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:50,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-28 01:11:50,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:50,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:50,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:50,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-28 01:11:50,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:50,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 01:11:50,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:50,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:50,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-28 01:11:50,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:50,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:50,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 01:11:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:50,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:50,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:50,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-28 01:11:50,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:50,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 01:11:50,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:50,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:50,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:50,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:50,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:50,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 01:11:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:50,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:50,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:50,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 01:11:50,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:50,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 01:11:50,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:50,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:50,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:50,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:50,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:50,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 01:11:50,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:50,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:50,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:50,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:11:50,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:50,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:50,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:50,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:50,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:50,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:50,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:50,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 01:11:50,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:50,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:50,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:50,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:11:50,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:50,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:50,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:50,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:50,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:50,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:50,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 01:11:50,818 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-28 01:11:50,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [312932965] [2020-10-28 01:11:50,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 01:11:50,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-28 01:11:50,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931909581] [2020-10-28 01:11:50,820 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 01:11:50,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 01:11:50,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 01:11:50,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-28 01:11:50,822 INFO L87 Difference]: Start difference. First operand 1084 states and 1322 transitions. Second operand 11 states. [2020-10-28 01:11:53,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 01:11:53,590 INFO L93 Difference]: Finished difference Result 2330 states and 2912 transitions. [2020-10-28 01:11:53,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 01:11:53,591 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 130 [2020-10-28 01:11:53,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 01:11:53,599 INFO L225 Difference]: With dead ends: 2330 [2020-10-28 01:11:53,599 INFO L226 Difference]: Without dead ends: 1265 [2020-10-28 01:11:53,603 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2020-10-28 01:11:53,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2020-10-28 01:11:53,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1084. [2020-10-28 01:11:53,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1084 states. [2020-10-28 01:11:53,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1298 transitions. [2020-10-28 01:11:53,720 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1298 transitions. Word has length 130 [2020-10-28 01:11:53,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 01:11:53,721 INFO L481 AbstractCegarLoop]: Abstraction has 1084 states and 1298 transitions. [2020-10-28 01:11:53,721 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 01:11:53,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1298 transitions. [2020-10-28 01:11:53,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-28 01:11:53,723 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 01:11:53,724 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 01:11:53,724 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 01:11:53,724 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 01:11:53,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 01:11:53,725 INFO L82 PathProgramCache]: Analyzing trace with hash -2145705507, now seen corresponding path program 1 times [2020-10-28 01:11:53,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 01:11:53,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1661327277] [2020-10-28 01:11:53,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 01:11:53,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:53,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:53,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:53,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 01:11:53,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:53,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-28 01:11:53,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:53,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 01:11:53,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 01:11:53,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-28 01:11:53,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:54,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 01:11:54,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:54,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:54,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:54,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 01:11:54,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:54,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 01:11:54,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:54,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:11:54,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:54,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 01:11:54,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:54,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 01:11:54,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:54,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:54,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:54,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 01:11:54,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:54,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 01:11:54,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:54,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:11:54,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:54,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 01:11:54,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:54,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 01:11:54,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:54,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:54,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:54,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 01:11:54,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:54,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:54,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:54,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:11:54,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:54,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 01:11:54,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:54,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 01:11:54,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:54,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:54,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:54,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 01:11:54,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:54,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:54,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:54,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 01:11:54,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:54,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 01:11:54,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:54,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 01:11:54,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:54,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:54,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:54,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:54,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:54,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 01:11:54,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:54,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 01:11:54,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 01:11:54,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 01:11:54,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:54,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-28 01:11:54,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:54,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:54,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:54,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 01:11:54,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:54,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 01:11:54,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:54,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:54,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-28 01:11:54,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:54,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:54,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 01:11:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:54,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:54,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:54,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:11:54,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:54,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:54,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:54,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:54,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:54,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:54,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:54,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 01:11:54,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:54,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:54,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:54,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:11:54,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:54,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:54,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:54,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:54,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:54,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:54,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:54,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-28 01:11:54,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:54,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:54,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:54,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:54,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:54,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:54,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:54,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:54,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 01:11:54,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:54,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:54,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-28 01:11:54,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:54,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:54,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:54,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:54,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:54,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:54,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:54,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:54,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 01:11:54,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:54,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:54,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-28 01:11:54,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:54,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:54,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:54,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:54,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:54,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:54,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:54,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:54,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 01:11:54,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:54,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:54,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 01:11:54,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:54,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:54,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:54,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 01:11:54,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:54,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:54,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:54,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:54,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 01:11:54,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:54,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:54,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-28 01:11:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:54,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:54,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:54,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-28 01:11:54,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:54,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 01:11:54,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:54,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:54,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-28 01:11:54,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:54,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:54,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 01:11:54,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:54,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:54,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:54,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-28 01:11:54,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:54,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 01:11:54,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:54,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:54,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:54,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:54,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:54,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 01:11:54,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:54,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:54,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:54,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 01:11:54,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:54,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 01:11:54,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:54,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:54,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:54,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:54,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:54,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 01:11:54,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:54,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:54,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:54,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:11:54,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:54,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:54,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:54,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:54,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:54,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:54,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:54,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 01:11:54,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 01:11:54,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 01:11:54,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 01:11:54,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 01:11:54,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 01:11:54,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 01:11:54,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 01:11:54,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 01:11:54,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 01:11:54,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 01:11:54,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 01:11:54,305 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-28 01:11:54,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1661327277] [2020-10-28 01:11:54,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 01:11:54,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 01:11:54,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283359041] [2020-10-28 01:11:54,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 01:11:54,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 01:11:54,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 01:11:54,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-28 01:11:54,308 INFO L87 Difference]: Start difference. First operand 1084 states and 1298 transitions. Second operand 10 states. [2020-10-28 01:11:54,456 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-10-28 01:11:58,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 01:11:58,085 INFO L93 Difference]: Finished difference Result 3261 states and 3991 transitions. [2020-10-28 01:11:58,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-28 01:11:58,086 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 130 [2020-10-28 01:11:58,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 01:11:58,097 INFO L225 Difference]: With dead ends: 3261 [2020-10-28 01:11:58,098 INFO L226 Difference]: Without dead ends: 2196 [2020-10-28 01:11:58,101 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-28 01:11:58,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2196 states. [2020-10-28 01:11:58,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2196 to 2059. [2020-10-28 01:11:58,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2059 states. [2020-10-28 01:11:58,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2059 states to 2059 states and 2432 transitions. [2020-10-28 01:11:58,311 INFO L78 Accepts]: Start accepts. Automaton has 2059 states and 2432 transitions. Word has length 130 [2020-10-28 01:11:58,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 01:11:58,312 INFO L481 AbstractCegarLoop]: Abstraction has 2059 states and 2432 transitions. [2020-10-28 01:11:58,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 01:11:58,312 INFO L276 IsEmpty]: Start isEmpty. Operand 2059 states and 2432 transitions. [2020-10-28 01:11:58,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-28 01:11:58,314 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 01:11:58,314 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 01:11:58,315 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 01:11:58,315 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 01:11:58,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 01:11:58,315 INFO L82 PathProgramCache]: Analyzing trace with hash 52839137, now seen corresponding path program 1 times [2020-10-28 01:11:58,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 01:11:58,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2051610449] [2020-10-28 01:11:58,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 01:11:58,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 01:11:58,335 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 01:11:58,335 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 01:11:58,341 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 01:11:58,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 01:11:58 BoogieIcfgContainer [2020-10-28 01:11:58,384 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 01:11:58,386 INFO L168 Benchmark]: Toolchain (without parser) took 80263.73 ms. Allocated memory was 151.0 MB in the beginning and 692.1 MB in the end (delta: 541.1 MB). Free memory was 124.7 MB in the beginning and 320.5 MB in the end (delta: -195.7 MB). Peak memory consumption was 346.2 MB. Max. memory is 8.0 GB. [2020-10-28 01:11:58,387 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 01:11:58,392 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.42 ms. Allocated memory is still 151.0 MB. Free memory was 124.2 MB in the beginning and 111.5 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-10-28 01:11:58,393 INFO L168 Benchmark]: Boogie Preprocessor took 48.03 ms. Allocated memory is still 151.0 MB. Free memory was 111.5 MB in the beginning and 109.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-28 01:11:58,398 INFO L168 Benchmark]: RCFGBuilder took 869.04 ms. Allocated memory is still 151.0 MB. Free memory was 109.5 MB in the beginning and 124.1 MB in the end (delta: -14.6 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2020-10-28 01:11:58,399 INFO L168 Benchmark]: TraceAbstraction took 79003.11 ms. Allocated memory was 151.0 MB in the beginning and 692.1 MB in the end (delta: 541.1 MB). Free memory was 123.6 MB in the beginning and 320.5 MB in the end (delta: -196.9 MB). Peak memory consumption was 344.1 MB. Max. memory is 8.0 GB. [2020-10-28 01:11:58,407 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 330.42 ms. Allocated memory is still 151.0 MB. Free memory was 124.2 MB in the beginning and 111.5 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 48.03 ms. Allocated memory is still 151.0 MB. Free memory was 111.5 MB in the beginning and 109.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 869.04 ms. Allocated memory is still 151.0 MB. Free memory was 109.5 MB in the beginning and 124.1 MB in the end (delta: -14.6 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 79003.11 ms. Allocated memory was 151.0 MB in the beginning and 692.1 MB in the end (delta: 541.1 MB). Free memory was 123.6 MB in the beginning and 320.5 MB in the end (delta: -196.9 MB). Peak memory consumption was 344.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int m_pc = 0; [L18] int t1_pc = 0; [L19] int m_st ; [L20] int t1_st ; [L21] int m_i ; [L22] int t1_i ; [L23] int M_E = 2; [L24] int T1_E = 2; [L25] int E_1 = 2; [L441] int __retres1 ; [L445] CALL init_model() [L356] m_i = 1 [L357] t1_i = 1 [L445] RET init_model() [L446] CALL start_simulation() [L382] int kernel_st ; [L383] int tmp ; [L384] int tmp___0 ; [L388] kernel_st = 0 [L389] FCALL update_channels() [L390] CALL init_threads() [L153] COND TRUE m_i == 1 [L154] m_st = 0 [L158] COND TRUE t1_i == 1 [L159] t1_st = 0 [L390] RET init_threads() [L391] CALL fire_delta_events() [L242] COND FALSE !(M_E == 0) [L247] COND FALSE !(T1_E == 0) [L252] COND FALSE !(E_1 == 0) [L391] RET fire_delta_events() [L392] CALL activate_threads() [L285] int tmp ; [L286] int tmp___0 ; [L290] CALL, EXPR is_master_triggered() [L104] int __retres1 ; [L107] COND FALSE !(m_pc == 1) [L117] __retres1 = 0 [L119] return (__retres1); [L290] RET, EXPR is_master_triggered() [L290] tmp = is_master_triggered() [L292] COND FALSE !(\read(tmp)) [L298] CALL, EXPR is_transmit1_triggered() [L123] int __retres1 ; [L126] COND FALSE !(t1_pc == 1) [L136] __retres1 = 0 [L138] return (__retres1); [L298] RET, EXPR is_transmit1_triggered() [L298] tmp___0 = is_transmit1_triggered() [L300] COND FALSE !(\read(tmp___0)) [L392] RET activate_threads() [L393] CALL reset_delta_events() [L265] COND FALSE !(M_E == 1) [L270] COND FALSE !(T1_E == 1) [L275] COND FALSE !(E_1 == 1) [L393] RET reset_delta_events() [L396] COND TRUE 1 [L399] kernel_st = 1 [L400] CALL eval() [L189] int tmp ; [L193] COND TRUE 1 [L196] CALL, EXPR exists_runnable_thread() [L168] int __retres1 ; [L171] COND TRUE m_st == 0 [L172] __retres1 = 1 [L184] return (__retres1); [L196] RET, EXPR exists_runnable_thread() [L196] tmp = exists_runnable_thread() [L198] COND TRUE \read(tmp) [L203] COND TRUE m_st == 0 [L204] int tmp_ndt_1; [L205] tmp_ndt_1 = __VERIFIER_nondet_int() [L206] COND FALSE !(\read(tmp_ndt_1)) [L217] COND TRUE t1_st == 0 [L218] int tmp_ndt_2; [L219] tmp_ndt_2 = __VERIFIER_nondet_int() [L220] COND TRUE \read(tmp_ndt_2) [L222] t1_st = 1 [L223] CALL transmit1() [L74] COND TRUE t1_pc == 0 [L85] COND TRUE 1 [L87] t1_pc = 1 [L88] t1_st = 2 [L223] RET transmit1() [L193] COND TRUE 1 [L196] CALL, EXPR exists_runnable_thread() [L168] int __retres1 ; [L171] COND TRUE m_st == 0 [L172] __retres1 = 1 [L184] return (__retres1); [L196] RET, EXPR exists_runnable_thread() [L196] tmp = exists_runnable_thread() [L198] COND TRUE \read(tmp) [L203] COND TRUE m_st == 0 [L204] int tmp_ndt_1; [L205] tmp_ndt_1 = __VERIFIER_nondet_int() [L206] COND TRUE \read(tmp_ndt_1) [L208] m_st = 1 [L209] CALL master() [L33] COND TRUE m_pc == 0 [L44] COND TRUE 1 [L47] E_1 = 1 [L48] CALL immediate_notify() [L314] CALL activate_threads() [L285] int tmp ; [L286] int tmp___0 ; [L290] CALL, EXPR is_master_triggered() [L104] int __retres1 ; [L107] COND FALSE !(m_pc == 1) [L117] __retres1 = 0 [L119] return (__retres1); [L290] RET, EXPR is_master_triggered() [L290] tmp = is_master_triggered() [L292] COND FALSE !(\read(tmp)) [L298] CALL, EXPR is_transmit1_triggered() [L123] int __retres1 ; [L126] COND TRUE t1_pc == 1 [L127] COND TRUE E_1 == 1 [L128] __retres1 = 1 [L138] return (__retres1); [L298] RET, EXPR is_transmit1_triggered() [L298] tmp___0 = is_transmit1_triggered() [L300] COND TRUE \read(tmp___0) [L301] t1_st = 0 [L314] RET activate_threads() [L48] RET immediate_notify() [L49] E_1 = 2 [L52] COND TRUE 1 [L54] m_pc = 1 [L55] m_st = 2 [L209] RET master() [L217] COND TRUE t1_st == 0 [L218] int tmp_ndt_2; [L219] tmp_ndt_2 = __VERIFIER_nondet_int() [L220] COND TRUE \read(tmp_ndt_2) [L222] t1_st = 1 [L223] CALL transmit1() [L74] COND FALSE !(t1_pc == 0) [L77] COND TRUE t1_pc == 1 [L93] CALL error() [L13] CALL reach_error() [L3] __assert_fail("0", "transmitter.01.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 22 procedures, 143 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 78.8s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 38.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1663 SDtfs, 5337 SDslu, 741 SDs, 0 SdLazy, 11736 SolverSat, 3211 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 545 GetRequests, 340 SyntacticMatches, 4 SemanticMatches, 201 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 9.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2059occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 2395 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 38.0s InterpolantComputationTime, 1235 NumberOfCodeBlocks, 1235 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1095 ConstructedInterpolants, 0 QuantifiedInterpolants, 299807 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 213/223 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...