/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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/token_ring.04.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 19:50:53,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 19:50:53,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 19:50:53,324 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 19:50:53,325 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 19:50:53,327 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 19:50:53,328 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 19:50:53,331 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 19:50:53,334 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 19:50:53,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 19:50:53,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 19:50:53,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 19:50:53,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 19:50:53,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 19:50:53,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 19:50:53,344 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 19:50:53,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 19:50:53,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 19:50:53,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 19:50:53,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 19:50:53,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 19:50:53,357 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 19:50:53,359 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 19:50:53,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 19:50:53,363 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 19:50:53,364 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 19:50:53,377 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 19:50:53,379 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 19:50:53,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 19:50:53,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 19:50:53,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 19:50:53,383 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 19:50:53,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 19:50:53,386 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 19:50:53,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 19:50:53,388 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 19:50:53,389 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 19:50:53,389 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 19:50:53,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 19:50:53,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 19:50:53,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 19:50:53,394 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 19:50:53,420 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 19:50:53,421 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 19:50:53,422 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 19:50:53,423 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 19:50:53,423 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 19:50:53,423 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 19:50:53,424 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 19:50:53,424 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 19:50:53,424 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 19:50:53,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 19:50:53,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 19:50:53,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 19:50:53,425 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 19:50:53,426 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 19:50:53,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 19:50:53,426 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 19:50:53,426 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 19:50:53,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 19:50:53,427 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 19:50:53,427 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 19:50:53,428 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 19:50:53,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 19:50:53,428 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 19:50:53,429 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 19:50:53,429 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 19:50:53,429 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 19:50:53,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 19:50:53,430 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 19:50:53,430 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 19:50:53,430 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 19:50:53,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 19:50:53,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 19:50:53,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 19:50:53,925 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 19:50:53,926 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 19:50:53,927 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/token_ring.04.cil-1.c [2020-10-28 19:50:54,002 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/46d36ed7f/77a4bf675acf4b35bf1030584e43122f/FLAG7774ca585 [2020-10-28 19:50:54,659 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 19:50:54,660 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/token_ring.04.cil-1.c [2020-10-28 19:50:54,676 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/46d36ed7f/77a4bf675acf4b35bf1030584e43122f/FLAG7774ca585 [2020-10-28 19:50:54,924 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/46d36ed7f/77a4bf675acf4b35bf1030584e43122f [2020-10-28 19:50:54,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 19:50:54,937 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 19:50:54,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 19:50:54,942 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 19:50:54,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 19:50:54,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 07:50:54" (1/1) ... [2020-10-28 19:50:54,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27a4f94b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:50:54, skipping insertion in model container [2020-10-28 19:50:54,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 07:50:54" (1/1) ... [2020-10-28 19:50:54,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 19:50:55,000 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 19:50:55,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 19:50:55,304 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 19:50:55,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 19:50:55,393 INFO L208 MainTranslator]: Completed translation [2020-10-28 19:50:55,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:50:55 WrapperNode [2020-10-28 19:50:55,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 19:50:55,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 19:50:55,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 19:50:55,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 19:50:55,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:50:55" (1/1) ... [2020-10-28 19:50:55,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:50:55" (1/1) ... [2020-10-28 19:50:55,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:50:55" (1/1) ... [2020-10-28 19:50:55,426 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:50:55" (1/1) ... [2020-10-28 19:50:55,442 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:50:55" (1/1) ... [2020-10-28 19:50:55,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:50:55" (1/1) ... [2020-10-28 19:50:55,464 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:50:55" (1/1) ... [2020-10-28 19:50:55,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 19:50:55,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 19:50:55,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 19:50:55,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 19:50:55,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:50:55" (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 19:50:55,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 19:50:55,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 19:50:55,569 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 19:50:55,569 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-10-28 19:50:55,569 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-10-28 19:50:55,569 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-10-28 19:50:55,569 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-10-28 19:50:55,570 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2020-10-28 19:50:55,570 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2020-10-28 19:50:55,570 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-10-28 19:50:55,570 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-10-28 19:50:55,570 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-10-28 19:50:55,571 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2020-10-28 19:50:55,571 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2020-10-28 19:50:55,571 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-10-28 19:50:55,571 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-10-28 19:50:55,572 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-10-28 19:50:55,572 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-10-28 19:50:55,572 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-10-28 19:50:55,572 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-10-28 19:50:55,572 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-10-28 19:50:55,573 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-10-28 19:50:55,573 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-10-28 19:50:55,573 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-10-28 19:50:55,574 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-10-28 19:50:55,574 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-10-28 19:50:55,574 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-10-28 19:50:55,574 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 19:50:55,575 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 19:50:55,575 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 19:50:55,575 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 19:50:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 19:50:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-10-28 19:50:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-10-28 19:50:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-10-28 19:50:55,577 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-10-28 19:50:55,577 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2020-10-28 19:50:55,577 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2020-10-28 19:50:55,578 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-10-28 19:50:55,578 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 19:50:55,578 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-10-28 19:50:55,578 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-10-28 19:50:55,579 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-10-28 19:50:55,579 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2020-10-28 19:50:55,579 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2020-10-28 19:50:55,579 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-10-28 19:50:55,580 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-10-28 19:50:55,580 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-10-28 19:50:55,584 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-10-28 19:50:55,584 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-10-28 19:50:55,585 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-10-28 19:50:55,585 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-10-28 19:50:55,585 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-10-28 19:50:55,585 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-10-28 19:50:55,586 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-10-28 19:50:55,586 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-10-28 19:50:55,586 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-10-28 19:50:55,586 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 19:50:55,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 19:50:55,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 19:50:55,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 19:50:55,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 19:50:55,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 19:50:55,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 19:50:56,689 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 19:50:56,690 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-10-28 19:50:56,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 07:50:56 BoogieIcfgContainer [2020-10-28 19:50:56,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 19:50:56,696 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 19:50:56,696 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 19:50:56,701 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 19:50:56,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 07:50:54" (1/3) ... [2020-10-28 19:50:56,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@412a7709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 07:50:56, skipping insertion in model container [2020-10-28 19:50:56,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:50:55" (2/3) ... [2020-10-28 19:50:56,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@412a7709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 07:50:56, skipping insertion in model container [2020-10-28 19:50:56,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 07:50:56" (3/3) ... [2020-10-28 19:50:56,706 INFO L111 eAbstractionObserver]: Analyzing ICFG token_ring.04.cil-1.c [2020-10-28 19:50:56,720 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 19:50:56,726 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 19:50:56,740 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 19:50:56,770 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 19:50:56,770 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 19:50:56,770 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 19:50:56,771 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 19:50:56,771 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 19:50:56,771 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 19:50:56,771 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 19:50:56,771 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 19:50:56,797 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states. [2020-10-28 19:50:56,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-28 19:50:56,811 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:50:56,812 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:50:56,812 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:50:56,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:50:56,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1498776942, now seen corresponding path program 1 times [2020-10-28 19:50:56,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:50:56,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [806293689] [2020-10-28 19:50:56,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:50:57,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:50:57,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:50:57,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:50:57,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:50:57,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:50:57,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:50:58,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:50:58,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:50:58,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:50:58,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:50:58,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:50:58,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:50:58,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:50:58,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:50:58,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:50:58,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:50:59,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:02,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:02,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 19:51:02,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-28 19:51:02,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-28 19:51:02,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:02,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:02,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:02,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 19:51:02,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 19:51:02,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 19:51:02,297 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:51:02,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:51:02,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:02,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:02,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:02,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:51:02,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:02,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 19:51:02,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:02,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:02,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:02,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:02,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:02,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:02,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:51:02,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:02,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:02,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:02,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:51:02,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:02,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 19:51:02,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:02,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:02,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:02,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:02,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:51:02,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:02,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:51:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:02,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:02,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:02,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:51:02,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:02,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:51:02,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:02,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:02,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:02,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:02,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:51:02,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:02,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:51:02,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:02,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:02,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:02,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:51:02,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:02,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 19:51:02,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:02,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:02,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:02,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:51:02,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:51:02,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:02,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:51:02,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:02,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:02,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:02,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:51:02,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:02,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 19:51:02,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:02,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:02,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:02,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:51:02,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:02,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:02,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:51:02,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:02,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:02,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:02,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:03,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:03,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:51:03,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 19:51:03,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 549 [2020-10-28 19:51:03,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:03,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:03,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:03,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 19:51:03,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:03,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:03,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:51:03,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:03,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:03,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:03,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:03,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:03,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:51:03,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:03,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:03,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:03,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:03,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:03,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:03,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:51:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:03,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:03,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:03,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:03,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:03,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:51:03,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:03,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:03,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:03,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:03,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:03,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:03,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:51:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:03,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:03,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:03,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:03,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:03,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:51:03,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:03,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:03,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:03,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:03,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:03,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:03,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:51:03,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:03,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:03,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:03,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:03,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:03,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:51:03,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:03,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:03,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:03,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:03,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:03,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:03,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:51:03,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:03,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:03,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:03,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:03,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:03,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:51:03,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:03,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:03,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:03,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:03,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:03,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:03,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:51:03,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:03,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:03,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:03,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:51:03,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:03,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 19:51:03,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:03,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:03,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:03,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:51:03,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:03,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 19:51:03,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:51:03,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:03,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:03,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:03,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:51:03,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:03,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:51:03,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:03,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:03,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:03,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:51:03,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:03,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:03,246 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 19:51:03,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [806293689] [2020-10-28 19:51:03,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:51:03,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 19:51:03,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370756196] [2020-10-28 19:51:03,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 19:51:03,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:51:03,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 19:51:03,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-28 19:51:03,277 INFO L87 Difference]: Start difference. First operand 238 states. Second operand 8 states. [2020-10-28 19:51:03,504 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-28 19:51:03,724 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 19:51:07,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:51:07,235 INFO L93 Difference]: Finished difference Result 591 states and 928 transitions. [2020-10-28 19:51:07,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 19:51:07,238 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 120 [2020-10-28 19:51:07,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:51:07,258 INFO L225 Difference]: With dead ends: 591 [2020-10-28 19:51:07,259 INFO L226 Difference]: Without dead ends: 359 [2020-10-28 19:51:07,266 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-10-28 19:51:07,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2020-10-28 19:51:07,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 226. [2020-10-28 19:51:07,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-28 19:51:07,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 315 transitions. [2020-10-28 19:51:07,397 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 315 transitions. Word has length 120 [2020-10-28 19:51:07,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:51:07,398 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 315 transitions. [2020-10-28 19:51:07,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 19:51:07,398 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 315 transitions. [2020-10-28 19:51:07,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-28 19:51:07,402 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:51:07,402 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:51:07,403 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 19:51:07,403 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:51:07,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:51:07,404 INFO L82 PathProgramCache]: Analyzing trace with hash -1489047956, now seen corresponding path program 1 times [2020-10-28 19:51:07,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:51:07,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1890443764] [2020-10-28 19:51:07,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:51:07,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:07,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:07,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:07,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:07,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:07,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:07,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:07,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:11,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:11,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:12,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:12,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 19:51:12,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-28 19:51:12,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-28 19:51:12,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:12,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:12,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 19:51:12,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:51:12,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-28 19:51:12,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:12,667 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:51:12,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:51:12,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:12,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:12,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:12,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:51:12,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:12,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 19:51:12,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:12,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:12,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:12,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:12,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:51:12,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:12,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:51:12,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:12,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:12,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:12,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:51:12,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:12,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:51:12,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:12,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:12,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:12,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:12,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:51:12,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:12,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:51:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:12,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:12,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:12,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:51:12,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:12,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:12,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:12,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:12,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:12,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:12,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:51:12,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:12,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:51:12,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:12,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:12,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:12,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:51:12,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:12,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 19:51:12,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:12,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:12,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:12,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:12,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 19:51:12,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:12,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:51:12,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:12,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:12,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:12,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:51:12,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:12,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 19:51:12,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:12,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:12,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:12,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:12,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 19:51:12,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:12,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:51:12,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:12,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:12,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:12,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:13,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:13,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:51:13,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 19:51:13,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 519 [2020-10-28 19:51:13,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:13,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:13,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:13,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-28 19:51:13,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 19:51:13,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 19:51:13,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:51:13,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:13,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:13,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:13,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:13,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:13,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:51:13,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:13,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:13,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:13,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:13,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:13,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:13,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:51:13,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:13,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:13,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:13,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:13,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:13,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:13,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:13,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:13,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:13,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:13,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:13,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:13,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:51:13,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:13,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:13,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:13,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:13,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:13,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:13,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:13,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:13,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:13,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:13,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:13,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:13,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:51:13,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:13,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:13,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:13,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:13,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:13,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:13,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:13,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:13,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:13,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:13,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:13,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:13,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:51:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:13,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:13,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:13,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:13,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:13,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:51:13,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:13,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:13,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:13,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:13,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 19:51:13,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:13,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:51:13,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:13,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:13,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:13,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:51:13,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:13,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 19:51:13,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:13,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:13,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:13,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:51:13,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:13,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:13,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:51:13,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:13,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:13,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:13,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:51:13,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:13,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:13,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:13,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:13,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:13,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:51:13,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:13,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:13,461 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 19:51:13,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1890443764] [2020-10-28 19:51:13,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:51:13,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 19:51:13,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38510509] [2020-10-28 19:51:13,465 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 19:51:13,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:51:13,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 19:51:13,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-28 19:51:13,467 INFO L87 Difference]: Start difference. First operand 226 states and 315 transitions. Second operand 8 states. [2020-10-28 19:51:13,636 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 19:51:15,428 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 19:51:18,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:51:18,861 INFO L93 Difference]: Finished difference Result 881 states and 1344 transitions. [2020-10-28 19:51:18,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 19:51:18,862 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 120 [2020-10-28 19:51:18,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:51:18,872 INFO L225 Difference]: With dead ends: 881 [2020-10-28 19:51:18,872 INFO L226 Difference]: Without dead ends: 678 [2020-10-28 19:51:18,877 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2020-10-28 19:51:18,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2020-10-28 19:51:19,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 435. [2020-10-28 19:51:19,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 435 states. [2020-10-28 19:51:19,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 614 transitions. [2020-10-28 19:51:19,021 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 614 transitions. Word has length 120 [2020-10-28 19:51:19,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:51:19,022 INFO L481 AbstractCegarLoop]: Abstraction has 435 states and 614 transitions. [2020-10-28 19:51:19,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 19:51:19,022 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 614 transitions. [2020-10-28 19:51:19,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-28 19:51:19,025 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:51:19,025 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:51:19,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 19:51:19,025 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:51:19,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:51:19,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1530816651, now seen corresponding path program 1 times [2020-10-28 19:51:19,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:51:19,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1988977225] [2020-10-28 19:51:19,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:51:19,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:19,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:19,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:19,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:19,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:19,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:19,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:19,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:24,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:24,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 19:51:24,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 19:51:24,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-28 19:51:24,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:24,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:24,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 19:51:24,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:51:24,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-28 19:51:24,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:24,234 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:51:24,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:51:24,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:24,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:24,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:24,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:51:24,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:24,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 19:51:24,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:24,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:24,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:24,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:24,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:51:24,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:24,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:51:24,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:24,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:24,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:24,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:51:24,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:24,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:51:24,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:24,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:24,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:24,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:24,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:51:24,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:24,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:51:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:24,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:24,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:24,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:51:24,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:24,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:24,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:24,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:24,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:24,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:24,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:51:24,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:24,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:51:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:24,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:24,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:24,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:51:24,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:24,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 19:51:24,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:24,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:24,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:24,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:24,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 19:51:24,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:24,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:51:24,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:24,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:24,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:24,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:51:24,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:24,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 19:51:24,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:24,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:24,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:24,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:24,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 19:51:24,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:24,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:51:24,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:24,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:24,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:24,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:24,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:25,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:25,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:51:25,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 19:51:25,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1104 [2020-10-28 19:51:25,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:25,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:25,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:25,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-28 19:51:25,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 19:51:25,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:25,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:51:25,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:25,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:25,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:25,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:25,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:25,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:25,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:25,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:25,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:25,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:25,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:25,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:25,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:51:25,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:25,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:25,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:25,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:25,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:25,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:25,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:25,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:25,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:25,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:25,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:25,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:25,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:51:25,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:25,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:25,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:25,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:25,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:25,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:25,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:25,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:25,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:25,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:25,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:25,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:25,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:51:25,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:25,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:25,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:25,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:25,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:25,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:51:25,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:25,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:25,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:25,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:25,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 19:51:25,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:25,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:51:25,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:25,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:25,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:25,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:25,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:25,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:51:25,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:25,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:25,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:25,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:25,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 19:51:25,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:25,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:51:25,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:25,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:25,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:25,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:51:25,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:25,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 19:51:25,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:25,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:25,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:25,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:51:25,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:25,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:25,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:51:25,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:25,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:25,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:25,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:51:25,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:25,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:51:25,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:25,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:25,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:25,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:51:25,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:25,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:25,615 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 19:51:25,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1988977225] [2020-10-28 19:51:25,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:51:25,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 19:51:25,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904841667] [2020-10-28 19:51:25,617 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 19:51:25,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:51:25,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 19:51:25,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-28 19:51:25,618 INFO L87 Difference]: Start difference. First operand 435 states and 614 transitions. Second operand 8 states. [2020-10-28 19:51:25,789 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 19:51:27,746 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 19:51:31,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:51:31,822 INFO L93 Difference]: Finished difference Result 1702 states and 2620 transitions. [2020-10-28 19:51:31,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 19:51:31,830 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 120 [2020-10-28 19:51:31,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:51:31,842 INFO L225 Difference]: With dead ends: 1702 [2020-10-28 19:51:31,842 INFO L226 Difference]: Without dead ends: 1290 [2020-10-28 19:51:31,846 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2020-10-28 19:51:31,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1290 states. [2020-10-28 19:51:32,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1290 to 848. [2020-10-28 19:51:32,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 848 states. [2020-10-28 19:51:32,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1204 transitions. [2020-10-28 19:51:32,009 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1204 transitions. Word has length 120 [2020-10-28 19:51:32,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:51:32,010 INFO L481 AbstractCegarLoop]: Abstraction has 848 states and 1204 transitions. [2020-10-28 19:51:32,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 19:51:32,010 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1204 transitions. [2020-10-28 19:51:32,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-28 19:51:32,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:51:32,012 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:51:32,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 19:51:32,013 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:51:32,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:51:32,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1257038156, now seen corresponding path program 1 times [2020-10-28 19:51:32,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:51:32,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [491356897] [2020-10-28 19:51:32,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:51:32,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:32,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:32,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:32,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:32,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:32,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:32,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:32,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:37,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:37,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 19:51:37,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 19:51:37,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-28 19:51:37,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:37,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:37,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:51:37,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-28 19:51:37,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 19:51:37,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:37,261 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:51:37,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:51:37,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:37,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:37,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:37,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:51:37,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:37,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 19:51:37,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:37,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:37,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:37,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:37,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:37,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:37,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:51:37,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:37,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:37,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:37,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:51:37,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:37,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:37,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:37,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:37,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:37,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:37,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:37,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:37,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:51:37,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:37,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:37,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:37,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:51:37,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:37,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:37,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:37,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:37,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:37,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:37,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:37,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:37,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:51:37,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:37,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:37,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:37,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:51:37,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:37,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:51:37,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:37,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:37,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:37,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:37,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:37,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:37,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:51:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:37,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:37,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:37,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:51:37,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:37,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 19:51:37,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:37,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:37,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:37,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:37,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:51:37,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:37,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:51:37,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:37,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:37,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:37,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:37,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:38,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:42,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:42,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:51:42,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 19:51:42,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-28 19:51:42,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:42,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:42,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:42,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:42,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-28 19:51:42,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:42,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:51:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:42,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:42,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:42,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:42,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:42,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:42,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:42,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:42,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:42,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:42,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:42,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:42,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:51:42,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:42,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:42,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:42,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:42,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:42,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:51:42,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:42,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:42,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:42,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:42,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:42,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:42,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:51:42,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:42,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:42,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:42,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:42,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:42,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:42,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:42,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:42,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:42,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:42,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:42,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:42,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:51:42,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:42,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:42,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:42,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:42,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:42,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:42,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:42,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:42,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:42,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:42,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:42,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:42,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:51:42,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:42,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:42,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:42,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:42,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:42,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:42,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:42,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:42,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:42,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:42,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:42,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:42,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:51:42,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:42,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:42,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:42,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:51:42,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:42,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 19:51:42,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:42,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:42,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:51:42,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 19:51:42,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 19:51:42,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:42,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:51:42,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:42,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:42,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:42,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:51:42,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:42,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:42,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:42,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:42,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:42,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:51:42,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:42,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:42,537 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 19:51:42,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [491356897] [2020-10-28 19:51:42,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:51:42,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 19:51:42,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692810877] [2020-10-28 19:51:42,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 19:51:42,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:51:42,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 19:51:42,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-28 19:51:42,540 INFO L87 Difference]: Start difference. First operand 848 states and 1204 transitions. Second operand 8 states. [2020-10-28 19:51:43,246 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-28 19:51:44,202 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-28 19:51:48,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:51:48,938 INFO L93 Difference]: Finished difference Result 3436 states and 5106 transitions. [2020-10-28 19:51:48,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-28 19:51:48,943 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 120 [2020-10-28 19:51:48,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:51:48,963 INFO L225 Difference]: With dead ends: 3436 [2020-10-28 19:51:48,964 INFO L226 Difference]: Without dead ends: 2612 [2020-10-28 19:51:48,969 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-10-28 19:51:48,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2612 states. [2020-10-28 19:51:49,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2612 to 2066. [2020-10-28 19:51:49,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2066 states. [2020-10-28 19:51:49,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2066 states to 2066 states and 2986 transitions. [2020-10-28 19:51:49,291 INFO L78 Accepts]: Start accepts. Automaton has 2066 states and 2986 transitions. Word has length 120 [2020-10-28 19:51:49,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:51:49,292 INFO L481 AbstractCegarLoop]: Abstraction has 2066 states and 2986 transitions. [2020-10-28 19:51:49,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 19:51:49,292 INFO L276 IsEmpty]: Start isEmpty. Operand 2066 states and 2986 transitions. [2020-10-28 19:51:49,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-28 19:51:49,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:51:49,295 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:51:49,295 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 19:51:49,295 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:51:49,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:51:49,296 INFO L82 PathProgramCache]: Analyzing trace with hash -793945842, now seen corresponding path program 1 times [2020-10-28 19:51:49,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:51:49,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1907082889] [2020-10-28 19:51:49,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:51:49,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:49,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:49,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:49,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:49,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:49,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:49,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:54,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:54,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 19:51:54,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 19:51:54,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-28 19:51:54,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:54,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:54,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 19:51:54,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:51:54,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-28 19:51:54,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:54,526 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:51:54,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:51:54,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:54,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:54,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:54,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:51:54,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:54,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 19:51:54,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:54,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:54,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:54,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:54,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:51:54,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:54,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:51:54,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:54,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:54,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:54,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:51:54,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:54,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:51:54,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:54,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:54,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:54,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:54,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:51:54,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:54,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:51:54,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:54,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:54,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:54,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:51:54,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:54,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:54,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:54,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:54,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:54,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:54,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:51:54,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:54,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:51:54,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:54,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:54,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:54,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:51:54,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:54,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 19:51:54,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:54,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:54,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:54,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:54,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 19:51:54,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:54,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:51:54,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:54,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:54,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:54,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:51:54,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:54,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 19:51:54,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:54,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:54,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:54,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:54,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 19:51:54,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:54,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:51:54,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:54,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:54,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:54,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:55,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:55,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:57,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:57,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:51:57,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 19:51:57,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3154 [2020-10-28 19:51:57,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:57,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:57,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:57,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 19:51:57,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-28 19:51:57,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:57,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:51:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:57,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:57,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:57,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:57,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:57,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:51:57,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:57,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:57,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:57,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:57,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:57,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:57,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:51:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:57,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:57,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:57,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:57,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:57,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:51:57,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:57,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:57,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:57,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:57,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 19:51:57,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:57,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:51:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:57,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:57,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:57,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:57,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:57,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:51:57,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:57,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:57,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:57,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:57,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 19:51:57,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:57,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:51:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:57,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:57,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:57,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:57,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:57,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:51:57,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:57,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:57,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:57,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:57,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 19:51:57,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:57,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:51:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:57,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:57,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:57,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:57,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:57,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:51:57,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:57,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:57,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:57,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:57,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 19:51:57,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:57,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:51:57,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:57,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:57,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:57,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:51:57,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:57,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 19:51:57,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:57,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:57,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:57,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:51:57,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:57,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:57,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:51:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:57,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:57,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:57,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:51:57,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:57,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:51:57,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:57,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:57,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:57,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:51:57,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:57,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:58,017 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 19:51:58,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1907082889] [2020-10-28 19:51:58,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:51:58,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 19:51:58,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843709126] [2020-10-28 19:51:58,019 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 19:51:58,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:51:58,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 19:51:58,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-28 19:51:58,020 INFO L87 Difference]: Start difference. First operand 2066 states and 2986 transitions. Second operand 9 states. [2020-10-28 19:51:58,263 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 19:52:00,303 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 19:52:04,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:52:04,735 INFO L93 Difference]: Finished difference Result 6921 states and 10538 transitions. [2020-10-28 19:52:04,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 19:52:04,736 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 120 [2020-10-28 19:52:04,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:52:04,770 INFO L225 Difference]: With dead ends: 6921 [2020-10-28 19:52:04,770 INFO L226 Difference]: Without dead ends: 4880 [2020-10-28 19:52:04,783 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-10-28 19:52:04,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4880 states. [2020-10-28 19:52:05,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4880 to 4050. [2020-10-28 19:52:05,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4050 states. [2020-10-28 19:52:05,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4050 states to 4050 states and 5836 transitions. [2020-10-28 19:52:05,351 INFO L78 Accepts]: Start accepts. Automaton has 4050 states and 5836 transitions. Word has length 120 [2020-10-28 19:52:05,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:52:05,351 INFO L481 AbstractCegarLoop]: Abstraction has 4050 states and 5836 transitions. [2020-10-28 19:52:05,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 19:52:05,351 INFO L276 IsEmpty]: Start isEmpty. Operand 4050 states and 5836 transitions. [2020-10-28 19:52:05,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-28 19:52:05,353 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:52:05,354 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:52:05,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 19:52:05,354 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:52:05,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:52:05,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1545700239, now seen corresponding path program 1 times [2020-10-28 19:52:05,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:52:05,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1217211958] [2020-10-28 19:52:05,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:52:05,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:05,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:05,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:05,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:05,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:05,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:05,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:10,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:10,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 19:52:10,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 19:52:10,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-28 19:52:10,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:10,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:10,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 19:52:10,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:52:10,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-28 19:52:10,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:10,534 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:52:10,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:52:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:10,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:10,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:10,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:52:10,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:10,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 19:52:10,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:10,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:10,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:52:10,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:10,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:52:10,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:10,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:52:10,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:10,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:10,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:10,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:52:10,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:10,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:52:10,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:10,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:10,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:52:10,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:10,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:52:10,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:10,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:52:10,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:10,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:10,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:10,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:52:10,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:10,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:10,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:10,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:10,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:52:10,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:10,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:52:10,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:10,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:52:10,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:10,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:10,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:10,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:52:10,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:10,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:52:10,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:10,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:10,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:52:10,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:10,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 19:52:10,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:10,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:52:10,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:10,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:10,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:10,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:52:10,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:10,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 19:52:10,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:10,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:10,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:52:10,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 19:52:10,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 19:52:10,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:10,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:52:10,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:10,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:10,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:10,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:10,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:10,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:13,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:15,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:15,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:52:15,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 19:52:15,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 19:52:15,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:15,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:15,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:15,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 19:52:15,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:15,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:15,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:52:15,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:15,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:15,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:15,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:15,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:15,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:15,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:15,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:15,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:15,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:15,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:15,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:15,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:52:15,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:15,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:15,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:15,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:15,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:15,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:15,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:15,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:15,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:15,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:15,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:15,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:15,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:52:15,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:15,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:15,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:15,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:15,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:15,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:15,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:15,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:15,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:15,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:15,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:15,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:15,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:52:15,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:15,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:15,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:15,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:15,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:15,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:15,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:15,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:15,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:15,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:15,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:15,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:15,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:52:15,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:15,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:15,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:15,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:15,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:15,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:15,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:15,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:15,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:15,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:15,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:15,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:15,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:52:15,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:15,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:15,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:15,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:52:15,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:15,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:52:15,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:15,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:15,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:15,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:52:15,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:15,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:15,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:52:15,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:15,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:15,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:15,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:52:15,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:15,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:15,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:15,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:15,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:15,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:52:15,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:15,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:15,758 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 19:52:15,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1217211958] [2020-10-28 19:52:15,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:52:15,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 19:52:15,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301827932] [2020-10-28 19:52:15,760 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 19:52:15,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:52:15,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 19:52:15,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-28 19:52:15,761 INFO L87 Difference]: Start difference. First operand 4050 states and 5836 transitions. Second operand 8 states. [2020-10-28 19:52:15,914 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 19:52:19,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:52:19,122 INFO L93 Difference]: Finished difference Result 7022 states and 10183 transitions. [2020-10-28 19:52:19,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 19:52:19,123 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 120 [2020-10-28 19:52:19,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:52:19,152 INFO L225 Difference]: With dead ends: 7022 [2020-10-28 19:52:19,153 INFO L226 Difference]: Without dead ends: 4674 [2020-10-28 19:52:19,163 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-10-28 19:52:19,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4674 states. [2020-10-28 19:52:19,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4674 to 3840. [2020-10-28 19:52:19,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3840 states. [2020-10-28 19:52:19,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3840 states to 3840 states and 5429 transitions. [2020-10-28 19:52:19,778 INFO L78 Accepts]: Start accepts. Automaton has 3840 states and 5429 transitions. Word has length 120 [2020-10-28 19:52:19,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:52:19,779 INFO L481 AbstractCegarLoop]: Abstraction has 3840 states and 5429 transitions. [2020-10-28 19:52:19,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 19:52:19,779 INFO L276 IsEmpty]: Start isEmpty. Operand 3840 states and 5429 transitions. [2020-10-28 19:52:19,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-28 19:52:19,781 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:52:19,781 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:52:19,781 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 19:52:19,781 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:52:19,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:52:19,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1755014261, now seen corresponding path program 1 times [2020-10-28 19:52:19,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:52:19,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [697336769] [2020-10-28 19:52:19,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:52:19,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:19,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:19,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:19,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:19,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:19,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:20,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:21,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:24,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:24,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 19:52:24,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 19:52:24,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-28 19:52:24,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:24,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:24,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 19:52:24,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:52:24,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-28 19:52:24,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:24,960 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:52:24,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:52:24,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:24,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:24,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:24,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:52:24,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:24,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 19:52:24,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:24,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:24,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:52:24,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:24,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:52:24,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:25,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:52:25,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:25,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:25,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:25,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:52:25,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:25,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:52:25,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:25,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:25,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:52:25,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:25,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:52:25,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:25,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:52:25,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:25,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:25,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:25,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:52:25,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:25,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:25,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:25,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:25,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:52:25,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:25,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:52:25,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:25,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:52:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:25,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:25,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:25,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:52:25,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:25,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:52:25,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:25,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:25,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:52:25,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:25,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 19:52:25,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:25,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:52:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:25,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:25,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:25,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:52:25,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:25,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 19:52:25,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:25,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:25,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:52:25,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 19:52:25,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 19:52:25,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:25,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:52:25,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:25,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:25,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:25,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:25,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:25,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:27,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:30,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:30,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:52:30,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 19:52:30,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-28 19:52:30,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:30,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:30,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:30,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 19:52:30,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:30,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:30,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:52:30,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:30,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:30,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:30,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:30,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:30,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:30,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:30,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:30,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:30,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:30,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:30,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:30,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:52:30,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:30,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:30,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:30,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:30,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:30,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:52:30,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:30,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:30,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:30,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:30,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:30,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:30,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:52:30,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:30,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:30,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:30,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:30,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:30,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:52:30,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:30,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:30,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:30,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:30,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:30,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:30,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:52:30,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:30,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:30,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:30,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:30,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:30,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:52:30,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:30,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:30,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:30,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:30,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:30,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:30,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:52:30,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:30,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:30,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:30,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:30,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:30,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:52:30,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:30,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:30,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:30,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:30,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:30,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:30,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:52:30,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:30,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:30,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:30,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:52:30,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:30,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:52:30,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:30,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:30,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:30,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:52:30,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:30,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:30,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:52:30,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:30,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:30,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:30,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:52:30,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:30,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:30,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:30,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:30,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:30,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:52:30,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:30,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:30,184 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 19:52:30,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [697336769] [2020-10-28 19:52:30,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:52:30,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 19:52:30,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820777239] [2020-10-28 19:52:30,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 19:52:30,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:52:30,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 19:52:30,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-28 19:52:30,186 INFO L87 Difference]: Start difference. First operand 3840 states and 5429 transitions. Second operand 9 states. [2020-10-28 19:52:30,346 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 19:52:33,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:52:33,741 INFO L93 Difference]: Finished difference Result 6886 states and 9912 transitions. [2020-10-28 19:52:33,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 19:52:33,744 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 120 [2020-10-28 19:52:33,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:52:33,774 INFO L225 Difference]: With dead ends: 6886 [2020-10-28 19:52:33,775 INFO L226 Difference]: Without dead ends: 4666 [2020-10-28 19:52:33,784 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-28 19:52:33,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4666 states. [2020-10-28 19:52:34,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4666 to 3840. [2020-10-28 19:52:34,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3840 states. [2020-10-28 19:52:34,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3840 states to 3840 states and 5380 transitions. [2020-10-28 19:52:34,386 INFO L78 Accepts]: Start accepts. Automaton has 3840 states and 5380 transitions. Word has length 120 [2020-10-28 19:52:34,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:52:34,386 INFO L481 AbstractCegarLoop]: Abstraction has 3840 states and 5380 transitions. [2020-10-28 19:52:34,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 19:52:34,387 INFO L276 IsEmpty]: Start isEmpty. Operand 3840 states and 5380 transitions. [2020-10-28 19:52:34,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-28 19:52:34,388 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:52:34,389 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:52:34,389 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 19:52:34,389 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:52:34,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:52:34,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1195737735, now seen corresponding path program 1 times [2020-10-28 19:52:34,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:52:34,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1176803017] [2020-10-28 19:52:34,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:52:34,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:34,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:34,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:34,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:34,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:34,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:34,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:35,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:39,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:39,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 19:52:39,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 19:52:39,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-28 19:52:39,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:39,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:39,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 19:52:39,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:52:39,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-28 19:52:39,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:39,564 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:52:39,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:52:39,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:39,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:39,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:39,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:52:39,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:39,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 19:52:39,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:39,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:39,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:52:39,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:39,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:52:39,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:39,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:52:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:39,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:39,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:39,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:52:39,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:39,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:52:39,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:39,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:39,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:52:39,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:39,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:52:39,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:39,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:52:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:39,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:39,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:39,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:52:39,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:39,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:39,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:39,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:39,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:52:39,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:39,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:52:39,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:39,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:52:39,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:39,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:39,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:39,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:52:39,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:39,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:52:39,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:39,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:39,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:52:39,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:39,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 19:52:39,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:39,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:52:39,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:39,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:39,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:39,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:52:39,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:39,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 19:52:39,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:39,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:39,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:52:39,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 19:52:39,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 19:52:39,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:39,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:52:39,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:39,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:39,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:39,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:39,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:39,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:42,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:44,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:44,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:52:44,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 19:52:44,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 19:52:44,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:44,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:44,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:44,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 19:52:44,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:44,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:44,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:52:44,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:44,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:44,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:44,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:44,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:44,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:52:44,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:44,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:44,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:44,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:44,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:44,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:44,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:52:44,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:44,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:44,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:44,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:44,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:44,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:52:44,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:44,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:44,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:44,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:44,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:44,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:44,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:52:44,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:44,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:44,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:44,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:44,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:44,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:52:44,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:44,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:44,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:44,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:44,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:44,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:44,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:52:44,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:44,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:44,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:44,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:44,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:44,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:52:44,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:44,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:44,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:44,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:44,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:44,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:44,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:52:44,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:44,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:44,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:44,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:44,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:44,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:52:44,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:44,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:44,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:44,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:44,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:44,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:44,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:52:44,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:44,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:44,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:44,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:52:44,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:44,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:52:44,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:44,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:44,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:44,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:52:44,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:44,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:44,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:52:44,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:44,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:44,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:44,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:52:44,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:44,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:44,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:44,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:44,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:44,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:52:44,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:44,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:44,773 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 19:52:44,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1176803017] [2020-10-28 19:52:44,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:52:44,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 19:52:44,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111640577] [2020-10-28 19:52:44,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 19:52:44,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:52:44,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 19:52:44,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-28 19:52:44,775 INFO L87 Difference]: Start difference. First operand 3840 states and 5380 transitions. Second operand 9 states. [2020-10-28 19:52:44,948 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 19:52:48,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:52:48,599 INFO L93 Difference]: Finished difference Result 6870 states and 9791 transitions. [2020-10-28 19:52:48,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 19:52:48,605 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 120 [2020-10-28 19:52:48,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:52:48,635 INFO L225 Difference]: With dead ends: 6870 [2020-10-28 19:52:48,636 INFO L226 Difference]: Without dead ends: 4666 [2020-10-28 19:52:48,655 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-28 19:52:48,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4666 states. [2020-10-28 19:52:49,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4666 to 3840. [2020-10-28 19:52:49,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3840 states. [2020-10-28 19:52:49,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3840 states to 3840 states and 5331 transitions. [2020-10-28 19:52:49,202 INFO L78 Accepts]: Start accepts. Automaton has 3840 states and 5331 transitions. Word has length 120 [2020-10-28 19:52:49,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:52:49,203 INFO L481 AbstractCegarLoop]: Abstraction has 3840 states and 5331 transitions. [2020-10-28 19:52:49,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 19:52:49,203 INFO L276 IsEmpty]: Start isEmpty. Operand 3840 states and 5331 transitions. [2020-10-28 19:52:49,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-28 19:52:49,205 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:52:49,206 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:52:49,207 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 19:52:49,207 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:52:49,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:52:49,207 INFO L82 PathProgramCache]: Analyzing trace with hash 126032647, now seen corresponding path program 1 times [2020-10-28 19:52:49,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:52:49,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1385429084] [2020-10-28 19:52:49,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:52:49,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:49,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:49,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:49,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:49,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:49,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:49,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:54,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:54,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 19:52:54,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 19:52:54,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-28 19:52:54,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:54,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:54,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 19:52:54,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-28 19:52:54,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 19:52:54,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:54,384 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:52:54,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:52:54,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:54,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:54,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:54,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:52:54,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:54,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 19:52:54,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:54,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:54,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:54,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:54,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:54,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:54,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:52:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:54,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:54,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:54,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:52:54,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:54,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:54,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:54,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:54,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:54,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:54,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:54,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:54,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:52:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:54,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:54,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:54,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:52:54,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:54,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:52:54,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:54,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:54,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:54,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:54,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:54,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:54,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:52:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:54,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:54,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:54,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:52:54,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:54,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:52:54,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:54,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:54,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:54,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:54,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:54,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:54,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:52:54,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:54,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:54,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:54,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:52:54,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:54,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:52:54,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:54,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:54,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:54,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:54,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:54,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:54,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:52:54,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:54,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:54,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:54,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:54,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:55,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:59,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:59,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:52:59,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 19:52:59,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 19:52:59,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:59,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:59,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 19:52:59,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-28 19:52:59,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 19:52:59,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:59,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:52:59,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:59,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:59,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:59,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:59,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:59,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:52:59,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:59,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:59,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:59,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:59,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:59,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:59,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:52:59,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:59,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:59,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:59,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:59,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:59,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:59,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:59,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:59,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:59,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:59,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:59,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:59,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:52:59,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:59,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:59,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:59,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:59,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:59,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 19:52:59,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:59,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:59,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:52:59,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:59,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 19:52:59,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:59,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:52:59,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:59,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:59,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:59,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:59,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:59,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:59,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:59,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:59,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:59,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 19:52:59,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:59,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:59,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:52:59,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:59,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:59,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:59,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:59,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:59,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:59,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:59,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:59,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:59,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 19:52:59,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:59,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-28 19:52:59,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:52:59,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:59,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:59,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:59,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:52:59,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:59,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 19:52:59,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:59,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:59,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:59,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:52:59,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:59,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:59,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:52:59,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:59,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:59,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:59,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:52:59,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:59,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:52:59,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:59,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:59,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:59,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:52:59,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:59,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:52:59,683 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 19:52:59,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1385429084] [2020-10-28 19:52:59,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:52:59,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 19:52:59,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750855708] [2020-10-28 19:52:59,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 19:52:59,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:52:59,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 19:52:59,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-28 19:52:59,687 INFO L87 Difference]: Start difference. First operand 3840 states and 5331 transitions. Second operand 10 states. [2020-10-28 19:53:00,604 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-28 19:53:00,856 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-28 19:53:01,065 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 19:53:01,284 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 19:53:04,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:53:04,742 INFO L93 Difference]: Finished difference Result 8842 states and 12772 transitions. [2020-10-28 19:53:04,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 19:53:04,742 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 120 [2020-10-28 19:53:04,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:53:04,789 INFO L225 Difference]: With dead ends: 8842 [2020-10-28 19:53:04,789 INFO L226 Difference]: Without dead ends: 5026 [2020-10-28 19:53:04,807 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2020-10-28 19:53:04,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5026 states. [2020-10-28 19:53:05,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5026 to 3960. [2020-10-28 19:53:05,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3960 states. [2020-10-28 19:53:05,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3960 states to 3960 states and 5451 transitions. [2020-10-28 19:53:05,243 INFO L78 Accepts]: Start accepts. Automaton has 3960 states and 5451 transitions. Word has length 120 [2020-10-28 19:53:05,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:53:05,244 INFO L481 AbstractCegarLoop]: Abstraction has 3960 states and 5451 transitions. [2020-10-28 19:53:05,244 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 19:53:05,244 INFO L276 IsEmpty]: Start isEmpty. Operand 3960 states and 5451 transitions. [2020-10-28 19:53:05,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-28 19:53:05,245 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:53:05,245 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:53:05,245 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 19:53:05,246 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:53:05,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:53:05,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1230544449, now seen corresponding path program 1 times [2020-10-28 19:53:05,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:53:05,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1438998394] [2020-10-28 19:53:05,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:53:05,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:05,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:05,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:05,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:05,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:05,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:05,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:06,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:07,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:07,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:07,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:10,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:10,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 19:53:10,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-28 19:53:10,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-28 19:53:10,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:10,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:10,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 19:53:10,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:53:10,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 19:53:10,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:10,449 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:53:10,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:53:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:10,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:10,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:10,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:53:10,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:10,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 19:53:10,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:10,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:10,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:53:10,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:10,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:53:10,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:10,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:53:10,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:10,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:10,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:10,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:53:10,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:10,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:53:10,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:10,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:10,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:53:10,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:10,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:53:10,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:10,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:53:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:10,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:10,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:10,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:53:10,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:10,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:53:10,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:10,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:10,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:53:10,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:10,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:53:10,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:10,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:53:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:10,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:10,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:10,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:53:10,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:10,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:53:10,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:10,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:10,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:53:10,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:10,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 19:53:10,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:10,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:53:10,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:10,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:10,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:10,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:53:10,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:10,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 19:53:10,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:10,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:10,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:53:10,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 19:53:10,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 19:53:10,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:10,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:53:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:10,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:10,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:10,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:10,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:11,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:12,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:12,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:53:12,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 19:53:12,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1683 [2020-10-28 19:53:12,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:12,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:12,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:12,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 19:53:12,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:12,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:12,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:53:12,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:12,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:12,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:12,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:12,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:12,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:53:12,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:12,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:12,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:12,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:12,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:12,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:12,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:53:12,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:12,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:12,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:12,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:12,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:12,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:53:12,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:12,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:12,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:12,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:12,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:12,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:12,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:53:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:12,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:12,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:12,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:12,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:12,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:53:12,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:12,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:12,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:12,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:12,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:12,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:12,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:53:12,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:12,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:12,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:12,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:12,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:12,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:53:12,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:12,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:12,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:12,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:12,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:12,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:12,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:53:12,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:12,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:12,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:12,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:12,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:12,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:53:12,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:12,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:12,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:12,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:12,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:12,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:12,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:53:12,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:12,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:12,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:12,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:53:12,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:12,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:53:12,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:12,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:12,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:12,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:53:12,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:12,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:12,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:53:12,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:12,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:12,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:12,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:53:12,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:12,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:53:12,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:12,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:12,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:12,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:53:12,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:12,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:12,326 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 19:53:12,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1438998394] [2020-10-28 19:53:12,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:53:12,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 19:53:12,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364972008] [2020-10-28 19:53:12,327 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 19:53:12,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:53:12,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 19:53:12,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-28 19:53:12,328 INFO L87 Difference]: Start difference. First operand 3960 states and 5451 transitions. Second operand 9 states. [2020-10-28 19:53:12,506 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 19:53:16,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:53:16,622 INFO L93 Difference]: Finished difference Result 8720 states and 12394 transitions. [2020-10-28 19:53:16,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 19:53:16,624 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 120 [2020-10-28 19:53:16,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:53:16,651 INFO L225 Difference]: With dead ends: 8720 [2020-10-28 19:53:16,652 INFO L226 Difference]: Without dead ends: 5596 [2020-10-28 19:53:16,666 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2020-10-28 19:53:16,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5596 states. [2020-10-28 19:53:17,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5596 to 4440. [2020-10-28 19:53:17,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4440 states. [2020-10-28 19:53:17,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4440 states to 4440 states and 5962 transitions. [2020-10-28 19:53:17,320 INFO L78 Accepts]: Start accepts. Automaton has 4440 states and 5962 transitions. Word has length 120 [2020-10-28 19:53:17,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:53:17,320 INFO L481 AbstractCegarLoop]: Abstraction has 4440 states and 5962 transitions. [2020-10-28 19:53:17,320 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 19:53:17,321 INFO L276 IsEmpty]: Start isEmpty. Operand 4440 states and 5962 transitions. [2020-10-28 19:53:17,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-28 19:53:17,322 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:53:17,322 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:53:17,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 19:53:17,323 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:53:17,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:53:17,323 INFO L82 PathProgramCache]: Analyzing trace with hash 307256007, now seen corresponding path program 1 times [2020-10-28 19:53:17,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:53:17,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [566912366] [2020-10-28 19:53:17,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:53:17,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:17,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:17,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:17,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:17,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:17,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:19,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:19,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:19,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:19,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:22,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:22,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 19:53:22,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-28 19:53:22,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-28 19:53:22,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:22,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:22,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 19:53:22,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-28 19:53:22,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 19:53:22,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:22,488 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:53:22,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:53:22,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:22,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:22,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:22,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:53:22,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:22,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 19:53:22,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:22,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:22,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:22,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:22,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:22,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:22,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:53:22,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:22,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:22,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:22,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:53:22,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:22,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:53:22,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:22,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:22,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:22,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:22,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:22,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:22,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:53:22,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:22,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:22,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:22,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:53:22,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:22,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:53:22,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:22,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:22,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:22,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:22,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:22,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:22,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:53:22,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:22,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:22,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:22,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:53:22,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:22,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:53:22,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:22,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:22,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:22,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:22,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:22,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:22,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:53:22,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:22,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:22,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:22,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:53:22,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:22,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:53:22,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:22,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:22,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:22,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:22,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:22,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:22,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:53:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:22,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:22,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:22,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:22,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:23,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:23,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:53:23,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 19:53:23,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1089 [2020-10-28 19:53:23,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:23,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:23,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 19:53:23,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 19:53:23,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 19:53:23,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:23,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:53:23,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:23,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:23,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:23,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:23,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:23,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:53:23,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:23,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:23,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:23,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:23,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:23,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:23,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:53:23,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:23,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:23,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:23,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:23,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:23,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:53:23,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:23,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:23,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:23,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:23,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:23,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:23,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:53:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:23,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:23,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:23,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:23,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:23,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:53:23,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:23,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:23,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:23,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:23,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:23,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:23,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:53:23,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:23,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:23,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:23,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:23,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:23,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:53:23,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:23,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:23,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:53:23,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:23,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 19:53:23,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:23,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:53:23,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:23,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:23,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:23,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:23,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:23,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:53:23,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:23,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:23,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:23,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 19:53:23,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:23,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:23,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:53:23,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:23,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:23,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:23,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:53:23,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:23,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:53:23,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:23,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:23,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:23,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:53:23,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:23,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:23,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:53:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:23,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:23,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:23,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:53:23,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:23,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:53:23,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:23,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:23,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:23,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:53:23,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:23,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:23,786 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 19:53:23,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [566912366] [2020-10-28 19:53:23,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:53:23,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 19:53:23,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139998556] [2020-10-28 19:53:23,788 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 19:53:23,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:53:23,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 19:53:23,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-28 19:53:23,789 INFO L87 Difference]: Start difference. First operand 4440 states and 5962 transitions. Second operand 10 states. [2020-10-28 19:53:24,740 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 19:53:24,913 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-28 19:53:25,149 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-28 19:53:25,368 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-28 19:53:28,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:53:28,124 INFO L93 Difference]: Finished difference Result 10114 states and 14117 transitions. [2020-10-28 19:53:28,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 19:53:28,124 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 120 [2020-10-28 19:53:28,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:53:28,148 INFO L225 Difference]: With dead ends: 10114 [2020-10-28 19:53:28,149 INFO L226 Difference]: Without dead ends: 5698 [2020-10-28 19:53:28,165 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2020-10-28 19:53:28,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5698 states. [2020-10-28 19:53:28,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5698 to 4540. [2020-10-28 19:53:28,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4540 states. [2020-10-28 19:53:28,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4540 states to 4540 states and 6050 transitions. [2020-10-28 19:53:28,672 INFO L78 Accepts]: Start accepts. Automaton has 4540 states and 6050 transitions. Word has length 120 [2020-10-28 19:53:28,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:53:28,673 INFO L481 AbstractCegarLoop]: Abstraction has 4540 states and 6050 transitions. [2020-10-28 19:53:28,673 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 19:53:28,673 INFO L276 IsEmpty]: Start isEmpty. Operand 4540 states and 6050 transitions. [2020-10-28 19:53:28,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-28 19:53:28,675 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:53:28,675 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:53:28,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 19:53:28,676 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:53:28,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:53:28,676 INFO L82 PathProgramCache]: Analyzing trace with hash 431728455, now seen corresponding path program 1 times [2020-10-28 19:53:28,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:53:28,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1542092784] [2020-10-28 19:53:28,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:53:28,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:28,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:28,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:28,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:28,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:28,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:29,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:29,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:29,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:33,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:33,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 19:53:33,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-28 19:53:33,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-28 19:53:33,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:33,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:33,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 19:53:33,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:53:33,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-28 19:53:33,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:33,846 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:53:33,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:53:33,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:33,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:33,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:33,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:53:33,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:33,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 19:53:33,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:33,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:33,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:53:33,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:33,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:53:33,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:33,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:53:33,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:33,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:33,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:33,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:53:33,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:33,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:53:33,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:33,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:33,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:53:33,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:33,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:53:33,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:33,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:53:33,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:33,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:33,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:33,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:53:33,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:33,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:53:33,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:33,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:33,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:53:33,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:33,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:53:33,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:33,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:53:33,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:33,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:33,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:33,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:53:33,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:33,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:53:33,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:33,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:33,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:53:33,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:33,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 19:53:33,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:33,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:53:33,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:33,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:34,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:34,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:53:34,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:34,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 19:53:34,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:34,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:34,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:53:34,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 19:53:34,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 19:53:34,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:34,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:53:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:34,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:34,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:34,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:34,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:34,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:34,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:53:34,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 19:53:34,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 336 [2020-10-28 19:53:34,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:34,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:34,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:34,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 19:53:34,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:34,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:34,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:53:34,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:34,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:34,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:34,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:34,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:34,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:53:34,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:34,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:34,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:34,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:34,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:34,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:34,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:53:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:34,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:34,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:34,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:34,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:34,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:53:34,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:34,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:34,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:34,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:34,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:34,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:34,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:53:34,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:34,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:34,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:34,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:34,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:34,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:53:34,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:34,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:34,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:34,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:34,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:34,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:34,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:53:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:34,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:34,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:34,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:34,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:34,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:53:34,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:34,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:34,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:34,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:34,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:34,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:34,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:53:34,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:34,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:34,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:34,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:34,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:34,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:53:34,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:34,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:34,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:34,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:34,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:34,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:34,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:53:34,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:34,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:34,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:34,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:53:34,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:34,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:53:34,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:34,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:34,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:34,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:53:34,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:34,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:34,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:53:34,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:34,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:34,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:34,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:53:34,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:34,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:53:34,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:34,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:34,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:34,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:53:34,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:34,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:34,431 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 19:53:34,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1542092784] [2020-10-28 19:53:34,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:53:34,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 19:53:34,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333953372] [2020-10-28 19:53:34,433 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 19:53:34,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:53:34,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 19:53:34,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-28 19:53:34,434 INFO L87 Difference]: Start difference. First operand 4540 states and 6050 transitions. Second operand 9 states. [2020-10-28 19:53:34,583 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 19:53:38,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:53:38,726 INFO L93 Difference]: Finished difference Result 10738 states and 14782 transitions. [2020-10-28 19:53:38,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 19:53:38,727 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 120 [2020-10-28 19:53:38,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:53:38,752 INFO L225 Difference]: With dead ends: 10738 [2020-10-28 19:53:38,752 INFO L226 Difference]: Without dead ends: 7030 [2020-10-28 19:53:38,766 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2020-10-28 19:53:38,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7030 states. [2020-10-28 19:53:39,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7030 to 5432. [2020-10-28 19:53:39,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5432 states. [2020-10-28 19:53:39,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 7005 transitions. [2020-10-28 19:53:39,535 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 7005 transitions. Word has length 120 [2020-10-28 19:53:39,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:53:39,535 INFO L481 AbstractCegarLoop]: Abstraction has 5432 states and 7005 transitions. [2020-10-28 19:53:39,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 19:53:39,535 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 7005 transitions. [2020-10-28 19:53:39,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-28 19:53:39,537 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:53:39,537 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:53:39,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 19:53:39,537 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:53:39,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:53:39,538 INFO L82 PathProgramCache]: Analyzing trace with hash -562965243, now seen corresponding path program 1 times [2020-10-28 19:53:39,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:53:39,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1123486292] [2020-10-28 19:53:39,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:53:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:39,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:39,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:39,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:39,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:39,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:39,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:39,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:44,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:44,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 19:53:44,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 19:53:44,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-28 19:53:44,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:44,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:44,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 19:53:44,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:53:44,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-28 19:53:44,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:44,706 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:53:44,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:53:44,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:44,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:44,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:44,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:53:44,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:44,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 19:53:44,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:44,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:44,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:53:44,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:44,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:53:44,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:44,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:53:44,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:44,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:44,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:44,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:53:44,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:44,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:53:44,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:44,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:44,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:53:44,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:44,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:53:44,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:44,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:53:44,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:44,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:44,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:44,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:53:44,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:44,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:53:44,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:44,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:44,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:53:44,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:44,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:53:44,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:44,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:53:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:44,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:44,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:44,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:53:44,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:44,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:53:44,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:44,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:44,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:53:44,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:44,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 19:53:44,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:44,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:53:44,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:44,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:44,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:44,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:53:44,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:44,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 19:53:44,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:44,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:44,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:53:44,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 19:53:44,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 19:53:44,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:44,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:53:44,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:44,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:44,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:44,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:44,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:45,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:45,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:53:45,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 19:53:45,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-10-28 19:53:45,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:45,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:45,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:45,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 19:53:45,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:45,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:45,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:53:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:45,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:45,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:45,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:45,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:45,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:53:45,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:45,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:45,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:45,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:45,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:45,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:45,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:53:45,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:45,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:45,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:45,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:45,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:45,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:53:45,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:45,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:45,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:45,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:45,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:45,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:45,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:53:45,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:45,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:45,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:45,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:45,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:45,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:53:45,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:45,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:45,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:45,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:45,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:45,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:45,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:53:45,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:45,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:45,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:45,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:45,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:45,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:53:45,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:45,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:45,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:45,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:45,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:45,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:45,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:53:45,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:45,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:45,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:45,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:45,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:45,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:53:45,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:45,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:45,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:45,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:45,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:45,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:45,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:53:45,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:45,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:45,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:45,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:53:45,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:45,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:53:45,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:45,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:45,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:45,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:53:45,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:45,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:45,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:53:45,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:45,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:45,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:45,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:53:45,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:45,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:53:45,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:45,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:45,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:45,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:53:45,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:45,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:45,174 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 19:53:45,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1123486292] [2020-10-28 19:53:45,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:53:45,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 19:53:45,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726166818] [2020-10-28 19:53:45,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 19:53:45,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:53:45,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 19:53:45,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-28 19:53:45,176 INFO L87 Difference]: Start difference. First operand 5432 states and 7005 transitions. Second operand 9 states. [2020-10-28 19:53:45,337 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 19:53:48,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:53:48,907 INFO L93 Difference]: Finished difference Result 12587 states and 16962 transitions. [2020-10-28 19:53:48,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 19:53:48,908 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 120 [2020-10-28 19:53:48,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:53:48,933 INFO L225 Difference]: With dead ends: 12587 [2020-10-28 19:53:48,934 INFO L226 Difference]: Without dead ends: 7178 [2020-10-28 19:53:48,954 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2020-10-28 19:53:48,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7178 states. [2020-10-28 19:53:49,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7178 to 5672. [2020-10-28 19:53:49,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5672 states. [2020-10-28 19:53:49,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5672 states to 5672 states and 7172 transitions. [2020-10-28 19:53:49,681 INFO L78 Accepts]: Start accepts. Automaton has 5672 states and 7172 transitions. Word has length 120 [2020-10-28 19:53:49,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:53:49,681 INFO L481 AbstractCegarLoop]: Abstraction has 5672 states and 7172 transitions. [2020-10-28 19:53:49,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 19:53:49,682 INFO L276 IsEmpty]: Start isEmpty. Operand 5672 states and 7172 transitions. [2020-10-28 19:53:49,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-28 19:53:49,683 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:53:49,683 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:53:49,683 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 19:53:49,683 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:53:49,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:53:49,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1877395659, now seen corresponding path program 1 times [2020-10-28 19:53:49,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:53:49,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [262876852] [2020-10-28 19:53:49,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:53:49,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:49,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:49,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:49,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:49,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:50,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:50,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:50,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:54,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:54,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 19:53:54,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 19:53:54,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-28 19:53:54,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:54,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:54,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 19:53:54,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-28 19:53:54,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 19:53:54,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:54,851 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:53:54,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:53:54,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:54,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:54,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:54,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:53:54,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:54,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 19:53:54,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:54,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:54,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:54,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:54,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:54,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:54,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:53:54,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:54,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:54,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:54,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:53:54,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:54,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:53:54,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:54,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:54,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:54,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:54,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:54,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:54,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:53:54,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:54,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:54,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:54,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:53:54,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:54,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:53:54,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:54,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:54,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:54,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:54,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:54,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:54,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:53:54,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:54,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:54,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:54,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:53:54,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:54,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:53:54,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:54,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:54,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:54,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:54,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:54,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:54,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:53:54,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:54,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:54,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:54,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:53:54,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:54,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:53:54,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:54,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:54,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:54,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:54,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:54,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:54,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:53:54,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:54,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:54,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:55,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:55,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:55,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:53:55,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 19:53:55,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-10-28 19:53:55,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:55,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:55,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 19:53:55,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-28 19:53:55,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 19:53:55,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:55,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:53:55,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:55,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:55,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:55,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:55,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:55,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:53:55,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:55,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:55,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:55,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:55,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:55,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:55,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:53:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:55,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:55,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:55,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:55,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:55,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:53:55,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:55,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:55,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:55,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:55,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:55,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:55,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:53:55,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:55,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:55,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:55,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:55,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:55,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:53:55,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:55,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:55,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:55,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:55,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:55,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:55,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:53:55,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:55,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:55,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:55,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:55,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:55,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:53:55,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:55,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:55,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:55,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:55,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:55,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:55,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:53:55,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:55,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:55,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:55,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:55,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:55,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:53:55,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:55,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:55,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:53:55,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:55,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 19:53:55,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:55,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:53:55,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:55,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:55,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:55,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:53:55,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:55,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:53:55,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:55,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:55,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:55,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:53:55,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:55,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:55,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:53:55,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:55,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:55,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:55,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:53:55,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:55,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:53:55,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:55,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:55,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:55,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:53:55,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:55,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:55,352 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 19:53:55,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [262876852] [2020-10-28 19:53:55,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:53:55,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 19:53:55,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002911887] [2020-10-28 19:53:55,353 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 19:53:55,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:53:55,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 19:53:55,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-28 19:53:55,354 INFO L87 Difference]: Start difference. First operand 5672 states and 7172 transitions. Second operand 10 states. [2020-10-28 19:53:56,356 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 19:53:56,531 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-28 19:53:56,784 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 19:53:57,012 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 19:53:59,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:53:59,840 INFO L93 Difference]: Finished difference Result 12726 states and 16655 transitions. [2020-10-28 19:53:59,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 19:53:59,840 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 120 [2020-10-28 19:53:59,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:53:59,861 INFO L225 Difference]: With dead ends: 12726 [2020-10-28 19:53:59,862 INFO L226 Difference]: Without dead ends: 7078 [2020-10-28 19:53:59,875 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2020-10-28 19:53:59,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7078 states. [2020-10-28 19:54:00,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7078 to 5692. [2020-10-28 19:54:00,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5692 states. [2020-10-28 19:54:00,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5692 states to 5692 states and 7140 transitions. [2020-10-28 19:54:00,554 INFO L78 Accepts]: Start accepts. Automaton has 5692 states and 7140 transitions. Word has length 120 [2020-10-28 19:54:00,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:54:00,555 INFO L481 AbstractCegarLoop]: Abstraction has 5692 states and 7140 transitions. [2020-10-28 19:54:00,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 19:54:00,555 INFO L276 IsEmpty]: Start isEmpty. Operand 5692 states and 7140 transitions. [2020-10-28 19:54:00,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-28 19:54:00,556 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:54:00,557 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:54:00,557 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 19:54:00,557 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:54:00,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:54:00,557 INFO L82 PathProgramCache]: Analyzing trace with hash -439830073, now seen corresponding path program 1 times [2020-10-28 19:54:00,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:54:00,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [790177337] [2020-10-28 19:54:00,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:54:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:00,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:00,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:00,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:00,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:00,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:02,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:05,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:05,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 19:54:05,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 19:54:05,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-28 19:54:05,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:05,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:05,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 19:54:05,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:54:05,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-28 19:54:05,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:05,741 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:54:05,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:54:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:05,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:05,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:05,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:54:05,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:05,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 19:54:05,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:05,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:05,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:54:05,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:05,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:54:05,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:05,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:54:05,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:05,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:05,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:05,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:54:05,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:05,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:54:05,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:05,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:05,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:54:05,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:05,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:54:05,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:05,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:54:05,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:05,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:05,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:05,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:54:05,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:05,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:54:05,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:05,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:05,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:54:05,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:05,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:54:05,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:05,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:54:05,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:05,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:05,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:05,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:54:05,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:05,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:54:05,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:05,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:05,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:54:05,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:05,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 19:54:05,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:05,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:54:05,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:05,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:05,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:05,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:54:05,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:05,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-28 19:54:05,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:05,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:05,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:54:05,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 19:54:05,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 19:54:05,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:05,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:54:05,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:05,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:05,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:05,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:06,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:06,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:54:06,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 19:54:06,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-28 19:54:06,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:06,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:06,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:06,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 19:54:06,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:06,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:06,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:54:06,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:06,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:06,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:06,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:54:06,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:06,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:54:06,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:06,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:06,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:06,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:06,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:06,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:06,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:54:06,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:06,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:06,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:06,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:54:06,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:06,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:54:06,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:06,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:06,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:06,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:06,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:06,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:06,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:54:06,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:06,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:06,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:06,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:54:06,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:06,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:54:06,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:06,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:06,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:06,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:06,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:06,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:06,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:54:06,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:06,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:06,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:06,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:54:06,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:06,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:54:06,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:06,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:06,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:06,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:06,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:06,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:06,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:54:06,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:06,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:06,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:06,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:54:06,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:06,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:54:06,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:06,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:06,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:06,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:06,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:06,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:06,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:54:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:06,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:06,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:06,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:54:06,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:06,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:54:06,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:06,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:06,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:06,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:54:06,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:06,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:06,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:54:06,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:06,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:06,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:06,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:54:06,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:06,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:54:06,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:06,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:06,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:06,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:54:06,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:06,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:06,116 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 19:54:06,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [790177337] [2020-10-28 19:54:06,116 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:54:06,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 19:54:06,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572970474] [2020-10-28 19:54:06,117 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 19:54:06,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:54:06,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 19:54:06,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-28 19:54:06,118 INFO L87 Difference]: Start difference. First operand 5692 states and 7140 transitions. Second operand 9 states. [2020-10-28 19:54:06,282 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 19:54:10,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:54:10,439 INFO L93 Difference]: Finished difference Result 12962 states and 16819 transitions. [2020-10-28 19:54:10,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 19:54:10,439 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 120 [2020-10-28 19:54:10,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:54:10,464 INFO L225 Difference]: With dead ends: 12962 [2020-10-28 19:54:10,465 INFO L226 Difference]: Without dead ends: 8434 [2020-10-28 19:54:10,477 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2020-10-28 19:54:10,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8434 states. [2020-10-28 19:54:11,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8434 to 6540. [2020-10-28 19:54:11,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6540 states. [2020-10-28 19:54:11,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6540 states to 6540 states and 7995 transitions. [2020-10-28 19:54:11,549 INFO L78 Accepts]: Start accepts. Automaton has 6540 states and 7995 transitions. Word has length 120 [2020-10-28 19:54:11,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:54:11,549 INFO L481 AbstractCegarLoop]: Abstraction has 6540 states and 7995 transitions. [2020-10-28 19:54:11,549 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 19:54:11,550 INFO L276 IsEmpty]: Start isEmpty. Operand 6540 states and 7995 transitions. [2020-10-28 19:54:11,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-28 19:54:11,550 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:54:11,551 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:54:11,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 19:54:11,551 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:54:11,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:54:11,551 INFO L82 PathProgramCache]: Analyzing trace with hash 338563271, now seen corresponding path program 1 times [2020-10-28 19:54:11,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:54:11,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1524438761] [2020-10-28 19:54:11,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:54:11,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:11,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:11,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:11,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:11,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:11,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:15,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:15,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:15,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:16,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:16,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 19:54:16,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-28 19:54:16,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 19:54:16,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:16,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:16,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 19:54:16,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 19:54:16,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-28 19:54:16,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:16,746 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:54:16,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:54:16,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:16,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:16,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:16,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:54:16,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:16,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 19:54:16,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:16,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:16,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:16,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:16,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:16,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:16,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:54:16,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:16,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:16,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:16,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:54:16,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:16,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:54:16,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:16,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:16,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:16,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:16,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:16,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:16,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:54:16,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:16,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:16,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:16,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:54:16,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:16,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:54:16,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:16,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:16,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:16,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:16,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:16,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:16,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:54:16,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:16,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:16,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:16,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:54:16,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:16,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:54:16,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:16,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:16,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:16,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:16,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:16,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:16,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:54:16,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:16,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:16,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:16,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:54:16,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:16,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:54:16,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:16,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:16,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:16,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:16,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:16,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:16,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:54:16,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:16,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:16,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:16,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:17,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:17,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:54:17,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 19:54:17,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-10-28 19:54:17,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:17,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:17,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:54:17,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:17,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 19:54:17,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:17,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:54:17,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:17,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:17,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:17,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:54:17,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:17,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:54:17,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:17,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:17,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:54:17,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:17,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 19:54:17,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:17,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:54:17,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:17,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:17,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:17,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:54:17,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:17,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:54:17,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:17,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:17,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:54:17,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:17,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 19:54:17,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:17,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:54:17,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:17,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:17,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:17,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:54:17,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:17,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:54:17,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:17,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:17,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:54:17,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:17,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 19:54:17,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:54:17,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:54:17,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:17,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:17,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:17,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:54:17,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:17,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 19:54:17,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:17,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:17,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:54:17,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:17,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 19:54:17,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:17,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:54:17,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:17,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:17,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:17,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:54:17,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:17,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:54:17,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:17,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:17,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:54:17,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:17,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 19:54:17,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:17,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:54:17,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:17,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:17,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:17,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:54:17,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:17,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 19:54:17,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:17,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:17,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:54:17,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:17,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 19:54:17,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:17,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:54:17,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:17,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:17,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:17,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:54:17,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:17,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:54:17,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:17,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:17,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:54:17,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:17,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 19:54:17,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:17,211 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 19:54:17,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1524438761] [2020-10-28 19:54:17,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:54:17,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 19:54:17,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991994814] [2020-10-28 19:54:17,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 19:54:17,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:54:17,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 19:54:17,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 19:54:17,219 INFO L87 Difference]: Start difference. First operand 6540 states and 7995 transitions. Second operand 7 states. [2020-10-28 19:54:17,383 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-28 19:54:22,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:54:22,761 INFO L93 Difference]: Finished difference Result 21742 states and 27742 transitions. [2020-10-28 19:54:22,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 19:54:22,762 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 120 [2020-10-28 19:54:22,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:54:22,821 INFO L225 Difference]: With dead ends: 21742 [2020-10-28 19:54:22,821 INFO L226 Difference]: Without dead ends: 15226 [2020-10-28 19:54:22,839 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-10-28 19:54:22,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15226 states. [2020-10-28 19:54:24,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15226 to 12320. [2020-10-28 19:54:24,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12320 states. [2020-10-28 19:54:24,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12320 states to 12320 states and 15307 transitions. [2020-10-28 19:54:24,438 INFO L78 Accepts]: Start accepts. Automaton has 12320 states and 15307 transitions. Word has length 120 [2020-10-28 19:54:24,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:54:24,439 INFO L481 AbstractCegarLoop]: Abstraction has 12320 states and 15307 transitions. [2020-10-28 19:54:24,439 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 19:54:24,439 INFO L276 IsEmpty]: Start isEmpty. Operand 12320 states and 15307 transitions. [2020-10-28 19:54:24,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-28 19:54:24,454 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:54:24,455 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 19:54:24,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 19:54:24,455 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:54:24,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:54:24,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1724213994, now seen corresponding path program 1 times [2020-10-28 19:54:24,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:54:24,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [656914460] [2020-10-28 19:54:24,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:54:24,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:24,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:24,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:24,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:24,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:24,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking...