/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-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 19:50:59,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 19:50:59,254 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 19:50:59,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 19:50:59,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 19:50:59,294 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 19:50:59,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 19:50:59,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 19:50:59,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 19:50:59,302 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 19:50:59,303 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 19:50:59,304 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 19:50:59,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 19:50:59,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 19:50:59,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 19:50:59,309 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 19:50:59,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 19:50:59,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 19:50:59,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 19:50:59,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 19:50:59,325 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 19:50:59,327 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 19:50:59,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 19:50:59,332 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 19:50:59,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 19:50:59,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 19:50:59,343 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 19:50:59,346 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 19:50:59,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 19:50:59,351 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 19:50:59,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 19:50:59,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 19:50:59,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 19:50:59,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 19:50:59,357 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 19:50:59,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 19:50:59,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 19:50:59,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 19:50:59,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 19:50:59,367 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 19:50:59,367 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 19:50:59,369 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 19:50:59,395 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 19:50:59,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 19:50:59,397 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 19:50:59,397 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 19:50:59,398 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 19:50:59,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 19:50:59,398 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 19:50:59,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 19:50:59,398 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 19:50:59,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 19:50:59,399 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 19:50:59,399 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 19:50:59,399 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 19:50:59,399 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 19:50:59,399 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 19:50:59,400 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 19:50:59,400 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 19:50:59,400 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 19:50:59,400 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 19:50:59,400 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 19:50:59,401 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 19:50:59,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 19:50:59,401 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 19:50:59,401 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 19:50:59,401 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 19:50:59,402 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 19:50:59,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 19:50:59,402 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 19:50:59,402 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 19:50:59,402 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 19:50:59,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 19:50:59,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 19:50:59,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 19:50:59,863 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 19:50:59,864 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 19:50:59,867 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/token_ring.04.cil-2.c [2020-10-28 19:50:59,959 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea2c63800/8083e9578eef49158b9657d24ab14b11/FLAGb6681fecc [2020-10-28 19:51:00,597 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 19:51:00,598 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/token_ring.04.cil-2.c [2020-10-28 19:51:00,617 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea2c63800/8083e9578eef49158b9657d24ab14b11/FLAGb6681fecc [2020-10-28 19:51:00,945 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea2c63800/8083e9578eef49158b9657d24ab14b11 [2020-10-28 19:51:00,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 19:51:00,955 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 19:51:00,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 19:51:00,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 19:51:00,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 19:51:00,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 07:51:00" (1/1) ... [2020-10-28 19:51:00,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@318351a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:51:00, skipping insertion in model container [2020-10-28 19:51:00,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 07:51:00" (1/1) ... [2020-10-28 19:51:00,974 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 19:51:01,015 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 19:51:01,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 19:51:01,269 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 19:51:01,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 19:51:01,379 INFO L208 MainTranslator]: Completed translation [2020-10-28 19:51:01,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:51:01 WrapperNode [2020-10-28 19:51:01,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 19:51:01,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 19:51:01,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 19:51:01,382 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 19:51:01,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:51:01" (1/1) ... [2020-10-28 19:51:01,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:51:01" (1/1) ... [2020-10-28 19:51:01,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:51:01" (1/1) ... [2020-10-28 19:51:01,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:51:01" (1/1) ... [2020-10-28 19:51:01,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:51:01" (1/1) ... [2020-10-28 19:51:01,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:51:01" (1/1) ... [2020-10-28 19:51:01,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:51:01" (1/1) ... [2020-10-28 19:51:01,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 19:51:01,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 19:51:01,453 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 19:51:01,453 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 19:51:01,454 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:51:01" (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 19:51:01,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 19:51:01,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 19:51:01,542 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 19:51:01,542 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-10-28 19:51:01,542 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-10-28 19:51:01,542 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-10-28 19:51:01,543 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-10-28 19:51:01,543 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2020-10-28 19:51:01,543 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2020-10-28 19:51:01,543 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-10-28 19:51:01,543 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-10-28 19:51:01,543 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-10-28 19:51:01,544 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2020-10-28 19:51:01,544 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2020-10-28 19:51:01,544 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-10-28 19:51:01,544 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-10-28 19:51:01,544 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-10-28 19:51:01,545 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-10-28 19:51:01,545 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-10-28 19:51:01,545 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-10-28 19:51:01,545 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-10-28 19:51:01,545 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-10-28 19:51:01,545 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-10-28 19:51:01,545 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-10-28 19:51:01,545 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-10-28 19:51:01,546 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-10-28 19:51:01,546 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-10-28 19:51:01,546 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 19:51:01,546 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 19:51:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 19:51:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 19:51:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 19:51:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-10-28 19:51:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-10-28 19:51:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-10-28 19:51:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-10-28 19:51:01,548 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2020-10-28 19:51:01,548 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2020-10-28 19:51:01,548 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-10-28 19:51:01,548 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 19:51:01,548 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-10-28 19:51:01,548 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-10-28 19:51:01,549 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-10-28 19:51:01,549 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2020-10-28 19:51:01,549 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2020-10-28 19:51:01,549 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-10-28 19:51:01,549 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-10-28 19:51:01,549 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-10-28 19:51:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-10-28 19:51:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-10-28 19:51:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-10-28 19:51:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-10-28 19:51:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-10-28 19:51:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-10-28 19:51:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-10-28 19:51:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-10-28 19:51:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-10-28 19:51:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 19:51:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 19:51:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 19:51:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 19:51:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 19:51:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 19:51:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 19:51:02,744 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 19:51:02,744 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-10-28 19:51:02,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 07:51:02 BoogieIcfgContainer [2020-10-28 19:51:02,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 19:51:02,749 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 19:51:02,749 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 19:51:02,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 19:51:02,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 07:51:00" (1/3) ... [2020-10-28 19:51:02,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e73055e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 07:51:02, skipping insertion in model container [2020-10-28 19:51:02,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:51:01" (2/3) ... [2020-10-28 19:51:02,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e73055e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 07:51:02, skipping insertion in model container [2020-10-28 19:51:02,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 07:51:02" (3/3) ... [2020-10-28 19:51:02,756 INFO L111 eAbstractionObserver]: Analyzing ICFG token_ring.04.cil-2.c [2020-10-28 19:51:02,769 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 19:51:02,775 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 19:51:02,789 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 19:51:02,820 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 19:51:02,821 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 19:51:02,821 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 19:51:02,821 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 19:51:02,821 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 19:51:02,821 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 19:51:02,821 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 19:51:02,821 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 19:51:02,864 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2020-10-28 19:51:02,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 19:51:02,878 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:51:02,879 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:51:02,880 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:51:02,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:51:02,887 INFO L82 PathProgramCache]: Analyzing trace with hash 470797181, now seen corresponding path program 1 times [2020-10-28 19:51:02,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:51:02,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [480449242] [2020-10-28 19:51:02,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:51:03,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:03,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:03,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:03,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:03,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:03,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:06,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:06,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:06,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:06,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:06,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:07,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:07,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:07,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:07,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:07,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:07,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:07,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:08,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:08,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 19:51:08,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-28 19:51:08,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-28 19:51:08,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:08,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:08,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:08,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 19:51:08,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 19:51:08,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 19:51:08,665 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:51:08,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:51:08,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:08,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:08,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:08,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:51:08,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:08,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 19:51:08,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:08,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:08,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:08,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:08,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:08,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:08,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:51:08,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:08,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:08,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:08,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:51:08,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:08,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 19:51:08,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:08,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:08,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:08,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:08,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:51:08,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:08,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:51:08,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:08,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:08,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:08,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:51:08,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:08,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:08,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:08,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:08,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:08,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:08,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:51:08,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:08,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:51:08,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:08,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:08,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:08,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:51:08,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:08,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 19:51:08,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:08,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:08,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:08,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:51:08,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:51:08,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:08,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:51:08,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:08,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:08,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:08,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:51:08,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:08,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 19:51:08,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:08,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:08,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:08,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:51:08,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:08,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:08,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:51:08,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:08,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:08,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:08,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:09,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:09,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:51:09,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 19:51:09,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 325 [2020-10-28 19:51:09,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:09,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:09,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:09,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 19:51:09,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:09,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:09,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:51:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:09,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:09,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:09,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:09,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:09,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:09,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:09,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:09,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:09,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:09,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:09,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:09,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:51:09,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:09,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:09,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:09,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:09,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:09,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:09,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:09,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:09,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:09,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:09,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:09,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:09,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:51:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:09,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:09,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:09,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:09,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:09,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:51:09,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:09,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:09,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:09,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:09,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:09,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:09,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:51:09,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:09,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:09,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:09,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:09,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:09,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:51:09,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:09,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:09,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:09,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:09,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:09,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:09,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:51:09,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:09,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:09,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:09,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:09,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:09,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:51:09,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:09,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:09,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:09,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:09,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:09,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:09,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:51:09,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:09,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:09,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:09,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:51:09,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:09,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 19:51:09,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:09,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:09,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:09,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:51:09,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:09,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:09,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:51:09,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:09,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:09,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:09,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:51:09,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:09,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:51:09,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:09,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:09,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:09,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:51:09,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:09,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:09,377 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 19:51:09,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [480449242] [2020-10-28 19:51:09,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:51:09,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 19:51:09,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441104288] [2020-10-28 19:51:09,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 19:51:09,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:51:09,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 19:51:09,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-28 19:51:09,404 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 8 states. [2020-10-28 19:51:09,724 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-28 19:51:10,068 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 19:51:13,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:51:13,575 INFO L93 Difference]: Finished difference Result 605 states and 954 transitions. [2020-10-28 19:51:13,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 19:51:13,578 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 121 [2020-10-28 19:51:13,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:51:13,596 INFO L225 Difference]: With dead ends: 605 [2020-10-28 19:51:13,597 INFO L226 Difference]: Without dead ends: 366 [2020-10-28 19:51:13,604 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-10-28 19:51:13,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2020-10-28 19:51:13,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 233. [2020-10-28 19:51:13,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-28 19:51:13,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 327 transitions. [2020-10-28 19:51:13,731 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 327 transitions. Word has length 121 [2020-10-28 19:51:13,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:51:13,731 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 327 transitions. [2020-10-28 19:51:13,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 19:51:13,732 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 327 transitions. [2020-10-28 19:51:13,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 19:51:13,736 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:51:13,737 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:51:13,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 19:51:13,737 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:51:13,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:51:13,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1957461441, now seen corresponding path program 1 times [2020-10-28 19:51:13,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:51:13,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [760296117] [2020-10-28 19:51:13,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:51:13,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:13,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:13,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:13,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:13,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:14,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:14,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:14,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:14,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:14,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:15,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:15,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:15,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:15,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:15,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:15,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:15,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:17,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:18,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:18,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 19:51:18,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-28 19:51:18,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-28 19:51:18,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:18,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:18,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 19:51:18,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:51:18,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-28 19:51:18,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:18,964 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:51:18,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:51:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:18,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:18,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:18,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:51:18,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:18,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 19:51:18,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:18,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:18,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:18,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:18,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:51:18,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:19,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:51:19,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:19,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:19,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:19,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:51:19,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:19,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:51:19,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:19,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:19,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:19,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:19,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:51:19,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:19,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:51:19,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:19,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:19,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:19,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:51:19,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:19,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 19:51:19,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:19,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:19,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:19,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:19,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:51:19,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:19,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:51:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:19,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:19,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:19,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:51:19,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:19,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 19:51:19,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:19,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:19,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:19,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:19,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 19:51:19,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:19,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:51:19,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:19,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:19,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:19,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:51:19,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:19,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 19:51:19,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:19,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:19,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:19,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:19,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 19:51:19,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:19,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:51:19,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:19,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:19,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:19,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:19,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:19,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:51:19,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 19:51:19,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 461 [2020-10-28 19:51:19,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:19,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:19,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:19,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-28 19:51:19,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 19:51:19,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:19,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:51:19,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:19,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:19,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:19,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:19,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:19,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:51:19,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:19,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:19,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:19,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:19,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:19,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:19,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:51:19,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:19,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:19,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:19,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:19,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:19,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:51:19,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:19,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:19,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:19,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:19,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:19,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:19,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:51:19,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:19,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:19,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:19,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:19,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:19,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:51:19,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:19,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:19,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:19,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:19,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:19,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:19,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:51:19,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:19,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:19,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:19,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:19,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:19,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:19,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:19,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:19,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:19,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:19,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:19,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:19,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:51:19,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:19,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:19,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:19,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:19,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:19,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:51:19,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:19,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:19,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:19,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:19,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 19:51:19,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:19,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:51:19,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:19,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:19,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:19,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:51:19,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:19,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 19:51:19,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:19,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:19,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:19,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:51:19,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:19,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:19,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:51:19,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:19,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:19,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:19,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:51:19,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:19,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:51:19,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:19,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:19,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:19,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:51:19,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:19,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:19,765 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 19:51:19,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [760296117] [2020-10-28 19:51:19,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:51:19,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 19:51:19,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630030863] [2020-10-28 19:51:19,769 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 19:51:19,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:51:19,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 19:51:19,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-28 19:51:19,770 INFO L87 Difference]: Start difference. First operand 233 states and 327 transitions. Second operand 8 states. [2020-10-28 19:51:19,919 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 19:51:21,704 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 19:51:25,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:51:25,011 INFO L93 Difference]: Finished difference Result 902 states and 1380 transitions. [2020-10-28 19:51:25,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 19:51:25,014 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 121 [2020-10-28 19:51:25,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:51:25,035 INFO L225 Difference]: With dead ends: 902 [2020-10-28 19:51:25,036 INFO L226 Difference]: Without dead ends: 692 [2020-10-28 19:51:25,045 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 19:51:25,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2020-10-28 19:51:25,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 448. [2020-10-28 19:51:25,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 448 states. [2020-10-28 19:51:25,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 637 transitions. [2020-10-28 19:51:25,219 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 637 transitions. Word has length 121 [2020-10-28 19:51:25,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:51:25,220 INFO L481 AbstractCegarLoop]: Abstraction has 448 states and 637 transitions. [2020-10-28 19:51:25,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 19:51:25,220 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 637 transitions. [2020-10-28 19:51:25,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 19:51:25,223 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:51:25,223 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:51:25,224 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 19:51:25,224 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:51:25,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:51:25,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1464028160, now seen corresponding path program 1 times [2020-10-28 19:51:25,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:51:25,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [727057457] [2020-10-28 19:51:25,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:51:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:25,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:25,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:25,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:25,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:25,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:27,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:27,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:27,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:27,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:27,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:27,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:27,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:27,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:27,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:27,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:27,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:30,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:30,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 19:51:30,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-28 19:51:30,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-28 19:51:30,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:30,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:30,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 19:51:30,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:51:30,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-28 19:51:30,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:30,421 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:51:30,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:51:30,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:30,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:30,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:30,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:51:30,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:30,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 19:51:30,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:30,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:30,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:30,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:30,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:51:30,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:30,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:51:30,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:30,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:30,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:30,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:51:30,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:30,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:51:30,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:30,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:30,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:30,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:30,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:51:30,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:30,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:51:30,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:30,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:30,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:30,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:51:30,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:30,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:30,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:30,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:30,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:30,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:30,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:51:30,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:30,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:51:30,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:30,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:30,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:30,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:51:30,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:30,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 19:51:30,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:30,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:30,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:30,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:30,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 19:51:30,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:30,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:51:30,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:30,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:30,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:30,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:51:30,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:30,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 19:51:30,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:30,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:30,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:30,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:30,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 19:51:30,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:30,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:51:30,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:30,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:30,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:30,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:30,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:31,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:31,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:51:31,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 19:51:31,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1033 [2020-10-28 19:51:31,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:31,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:31,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:31,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-28 19:51:31,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 19:51:31,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:31,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:51:31,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:31,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:31,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:31,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:31,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:31,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:31,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:31,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:31,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:31,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:31,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:31,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:31,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:51:31,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:31,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:31,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:31,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:31,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:31,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:31,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:31,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:31,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:31,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:31,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:31,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:31,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:51:31,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:31,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:31,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:31,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:31,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:31,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:31,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:31,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:31,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:31,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:31,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:31,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:31,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:51:31,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:31,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:31,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:31,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:31,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:31,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:51:31,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:31,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:31,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:31,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:31,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 19:51:31,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:31,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:51:31,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:31,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:31,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:31,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:31,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:31,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:51:31,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:31,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:31,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:31,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:31,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 19:51:31,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:31,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:51:31,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:31,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:31,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:31,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:51:31,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:31,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:51:31,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:31,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:31,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:31,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:51:31,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:31,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:31,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:51:31,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:31,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:31,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:31,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:51:31,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:31,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:51:31,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:31,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:31,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:31,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:51:31,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:31,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:31,714 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 19:51:31,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [727057457] [2020-10-28 19:51:31,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:51:31,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 19:51:31,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142745268] [2020-10-28 19:51:31,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 19:51:31,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:51:31,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 19:51:31,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-28 19:51:31,718 INFO L87 Difference]: Start difference. First operand 448 states and 637 transitions. Second operand 8 states. [2020-10-28 19:51:31,890 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 19:51:33,883 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 19:51:37,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:51:37,945 INFO L93 Difference]: Finished difference Result 1741 states and 2689 transitions. [2020-10-28 19:51:37,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 19:51:37,946 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 121 [2020-10-28 19:51:37,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:51:37,956 INFO L225 Difference]: With dead ends: 1741 [2020-10-28 19:51:37,957 INFO L226 Difference]: Without dead ends: 1316 [2020-10-28 19:51:37,960 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 19:51:37,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1316 states. [2020-10-28 19:51:38,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 873. [2020-10-28 19:51:38,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 873 states. [2020-10-28 19:51:38,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1249 transitions. [2020-10-28 19:51:38,107 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1249 transitions. Word has length 121 [2020-10-28 19:51:38,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:51:38,107 INFO L481 AbstractCegarLoop]: Abstraction has 873 states and 1249 transitions. [2020-10-28 19:51:38,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 19:51:38,108 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1249 transitions. [2020-10-28 19:51:38,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 19:51:38,110 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:51:38,110 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:51:38,110 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 19:51:38,111 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:51:38,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:51:38,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1566829407, now seen corresponding path program 1 times [2020-10-28 19:51:38,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:51:38,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1509616864] [2020-10-28 19:51:38,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:51:38,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:38,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:38,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:38,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:38,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:38,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:38,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:43,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:43,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 19:51:43,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 19:51:43,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-28 19:51:43,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:43,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:43,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 19:51:43,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:51:43,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 19:51:43,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:43,286 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:51:43,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:51:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:43,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:43,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:43,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:51:43,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:43,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 19:51:43,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:43,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:43,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:43,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:43,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:51:43,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:43,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:51:43,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:43,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:43,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:43,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:51:43,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:43,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 19:51:43,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:43,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:43,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:43,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:43,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:51:43,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:43,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:51:43,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:43,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:43,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:43,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:51:43,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:43,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:43,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:43,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:43,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:43,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:43,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:51:43,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:43,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:51:43,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:43,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:43,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:43,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:51:43,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:43,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:51:43,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:43,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:43,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:43,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:43,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 19:51:43,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:43,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:51:43,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:43,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:43,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:43,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:51:43,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:43,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 19:51:43,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:43,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:43,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:51:43,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 19:51:43,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 19:51:43,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:43,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:51:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:43,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:43,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:43,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:43,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:44,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:45,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:45,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:51:45,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 19:51:45,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2093 [2020-10-28 19:51:45,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:45,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:45,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:45,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 19:51:45,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:45,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:45,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:51:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:45,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:45,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:45,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:45,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:45,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:45,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:45,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:45,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:45,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:45,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:45,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:45,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:51:45,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:45,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:45,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:45,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:45,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:45,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:45,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:45,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:45,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:45,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:45,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:45,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:45,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:51:45,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:45,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:45,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:45,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:45,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:45,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:45,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:45,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:45,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:45,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:45,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:45,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:45,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:51:45,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:45,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:45,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:45,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:45,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:45,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:45,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:45,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:45,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:45,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:45,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:45,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:45,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:51:45,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:45,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:45,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:45,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:45,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:45,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:45,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:45,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:45,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:45,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:45,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:45,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:45,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:51:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:45,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:45,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:45,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:51:45,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:45,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:51:45,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:45,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:45,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:45,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:51:45,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:45,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:45,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:51:45,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:45,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:45,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:45,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:51:45,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:45,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:45,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:45,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:45,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:45,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:51:45,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:45,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:45,616 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 19:51:45,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1509616864] [2020-10-28 19:51:45,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:51:45,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 19:51:45,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192323029] [2020-10-28 19:51:45,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 19:51:45,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:51:45,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 19:51:45,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-28 19:51:45,619 INFO L87 Difference]: Start difference. First operand 873 states and 1249 transitions. Second operand 9 states. [2020-10-28 19:51:45,773 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 19:51:48,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:51:48,983 INFO L93 Difference]: Finished difference Result 2158 states and 3257 transitions. [2020-10-28 19:51:48,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 19:51:48,987 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 121 [2020-10-28 19:51:48,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:51:48,997 INFO L225 Difference]: With dead ends: 2158 [2020-10-28 19:51:48,997 INFO L226 Difference]: Without dead ends: 1307 [2020-10-28 19:51:49,002 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-28 19:51:49,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1307 states. [2020-10-28 19:51:49,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1307 to 873. [2020-10-28 19:51:49,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 873 states. [2020-10-28 19:51:49,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1237 transitions. [2020-10-28 19:51:49,141 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1237 transitions. Word has length 121 [2020-10-28 19:51:49,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:51:49,141 INFO L481 AbstractCegarLoop]: Abstraction has 873 states and 1237 transitions. [2020-10-28 19:51:49,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 19:51:49,142 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1237 transitions. [2020-10-28 19:51:49,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 19:51:49,143 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:51:49,144 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:51:49,144 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 19:51:49,144 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:51:49,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:51:49,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1733885093, now seen corresponding path program 1 times [2020-10-28 19:51:49,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:51:49,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1281249832] [2020-10-28 19:51:49,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:51:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:49,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:49,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:49,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:49,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:49,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:49,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:50,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:50,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:50,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:50,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:50,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:50,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:50,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:54,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:54,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 19:51:54,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-28 19:51:54,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-28 19:51:54,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:54,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:54,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 19:51:54,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:51:54,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-28 19:51:54,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:54,364 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:51:54,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:51:54,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:54,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:54,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:54,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:51:54,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:54,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 19:51:54,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:54,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:54,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:54,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:54,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:51:54,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:54,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:51:54,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:54,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:54,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:54,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:51:54,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:54,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:51:54,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:54,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:54,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:54,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:54,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:51:54,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:54,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:51:54,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:54,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:54,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:54,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:51:54,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:54,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:54,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:54,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:54,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:54,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:54,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:51:54,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:54,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:51:54,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:54,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:54,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:54,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:51:54,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:54,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 19:51:54,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:54,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:54,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:54,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:54,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 19:51:54,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:54,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:51:54,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:54,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:54,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:54,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:51:54,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:54,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 19:51:54,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:54,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:54,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:54,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:54,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 19:51:54,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:51:54,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:51:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:54,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:54,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:54,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:54,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:55,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:58,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:58,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:51:58,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 19:51:58,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3870 [2020-10-28 19:51:58,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:58,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:58,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:58,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 19:51:58,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-28 19:51:58,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:58,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:51:58,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:58,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:58,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:58,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:58,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:58,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:58,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:58,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:58,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:58,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:58,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:58,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:58,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:51:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:58,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:58,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:58,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:58,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:58,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:51:58,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:58,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:58,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:58,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:58,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 19:51:58,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:58,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:51:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:58,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:58,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:58,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:58,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:58,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:51:58,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:58,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:58,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:58,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:58,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 19:51:58,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:58,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:51:58,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:58,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:58,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:58,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:58,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:58,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:51:58,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:58,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:58,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:58,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:58,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 19:51:58,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:58,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:51:58,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:58,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:58,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:58,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:51:58,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:58,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:51:58,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:58,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:58,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:51:58,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:51:58,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 19:51:58,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:58,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:51:58,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:58,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:58,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:58,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:51:58,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:58,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:51:58,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:58,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:58,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:58,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:51:58,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:58,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:58,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:51:58,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:51:58,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:51:58,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:51:58,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:51:58,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:51:58,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:51:58,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:51:58,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:51:58,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:51:58,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:51:58,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:51:58,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:51:58,535 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 19:51:58,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1281249832] [2020-10-28 19:51:58,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:51:58,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 19:51:58,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140125709] [2020-10-28 19:51:58,536 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 19:51:58,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:51:58,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 19:51:58,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-28 19:51:58,538 INFO L87 Difference]: Start difference. First operand 873 states and 1237 transitions. Second operand 8 states. [2020-10-28 19:51:58,715 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 19:52:00,458 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 19:52:04,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:52:04,540 INFO L93 Difference]: Finished difference Result 3382 states and 5222 transitions. [2020-10-28 19:52:04,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 19:52:04,541 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 121 [2020-10-28 19:52:04,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:52:04,560 INFO L225 Difference]: With dead ends: 3382 [2020-10-28 19:52:04,560 INFO L226 Difference]: Without dead ends: 2532 [2020-10-28 19:52:04,566 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2020-10-28 19:52:04,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2532 states. [2020-10-28 19:52:04,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2532 to 1713. [2020-10-28 19:52:04,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1713 states. [2020-10-28 19:52:04,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1713 states to 1713 states and 2435 transitions. [2020-10-28 19:52:04,831 INFO L78 Accepts]: Start accepts. Automaton has 1713 states and 2435 transitions. Word has length 121 [2020-10-28 19:52:04,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:52:04,831 INFO L481 AbstractCegarLoop]: Abstraction has 1713 states and 2435 transitions. [2020-10-28 19:52:04,831 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 19:52:04,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1713 states and 2435 transitions. [2020-10-28 19:52:04,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 19:52:04,832 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:52:04,833 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:52:04,833 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 19:52:04,834 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:52:04,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:52:04,834 INFO L82 PathProgramCache]: Analyzing trace with hash 2075666682, now seen corresponding path program 1 times [2020-10-28 19:52:04,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:52:04,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [925324701] [2020-10-28 19:52:04,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:52:04,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:04,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:04,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:04,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:04,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:04,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:05,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:05,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:09,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:09,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 19:52:09,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 19:52:09,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-28 19:52:09,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:09,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:09,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 19:52:09,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:52:09,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-28 19:52:09,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:10,030 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:52:10,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:52:10,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:10,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:10,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:10,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:52:10,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:10,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 19:52:10,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:10,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:10,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:52:10,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:10,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:52:10,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:52:10,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:52:10,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:10,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:10,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:10,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:52:10,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:10,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:52:10,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:10,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:10,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:52:10,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:10,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:52:10,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:52:10,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:52:10,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:10,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:10,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:10,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:52:10,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:10,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:10,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:10,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:10,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:52:10,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:10,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:52:10,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:52:10,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:52:10,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:10,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:10,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:10,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:52:10,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:10,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 19:52:10,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:10,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:10,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:52:10,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:10,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 19:52:10,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:52:10,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:52:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:10,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:10,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:10,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:52:10,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:10,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 19:52:10,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:10,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:10,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:52:10,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 19:52:10,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 19:52:10,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:52:10,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:52:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:10,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:10,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:10,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:10,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:10,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:13,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:15,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:15,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:52:15,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 19:52:15,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 19:52:15,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:15,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:15,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:15,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 19:52:15,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:15,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:15,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:52:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:15,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:15,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:15,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:15,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:15,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:15,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:15,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:15,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:15,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:15,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:15,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:15,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:52:15,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:15,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:15,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:15,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:15,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:15,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:15,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:15,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:15,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:15,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:15,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:15,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:15,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:52:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:15,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:15,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:15,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:15,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:15,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:15,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:15,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:15,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:15,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:15,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:15,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:15,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:52:15,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:15,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:15,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:15,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:15,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:15,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:15,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:15,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:15,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:15,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:15,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:15,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:15,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:52:15,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:15,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:15,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:15,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:15,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:15,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:15,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:15,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:15,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:15,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:15,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:15,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:15,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:52:15,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:15,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:15,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:15,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:52:15,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:15,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:52:15,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:15,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:15,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:15,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:52:15,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:15,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:15,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:52:15,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:15,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:15,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:15,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:52:15,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:15,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:15,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:15,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:15,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:15,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:52:15,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:15,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:15,347 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 19:52:15,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [925324701] [2020-10-28 19:52:15,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:52:15,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 19:52:15,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068094758] [2020-10-28 19:52:15,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 19:52:15,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:52:15,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 19:52:15,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-28 19:52:15,350 INFO L87 Difference]: Start difference. First operand 1713 states and 2435 transitions. Second operand 10 states. [2020-10-28 19:52:15,518 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 19:52:18,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:52:18,937 INFO L93 Difference]: Finished difference Result 4210 states and 6327 transitions. [2020-10-28 19:52:18,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 19:52:18,938 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 121 [2020-10-28 19:52:18,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:52:18,957 INFO L225 Difference]: With dead ends: 4210 [2020-10-28 19:52:18,958 INFO L226 Difference]: Without dead ends: 2519 [2020-10-28 19:52:18,966 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-10-28 19:52:18,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2020-10-28 19:52:19,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 1713. [2020-10-28 19:52:19,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1713 states. [2020-10-28 19:52:19,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1713 states to 1713 states and 2411 transitions. [2020-10-28 19:52:19,224 INFO L78 Accepts]: Start accepts. Automaton has 1713 states and 2411 transitions. Word has length 121 [2020-10-28 19:52:19,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:52:19,225 INFO L481 AbstractCegarLoop]: Abstraction has 1713 states and 2411 transitions. [2020-10-28 19:52:19,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 19:52:19,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1713 states and 2411 transitions. [2020-10-28 19:52:19,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 19:52:19,227 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:52:19,227 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:52:19,227 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 19:52:19,227 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:52:19,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:52:19,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1893757566, now seen corresponding path program 1 times [2020-10-28 19:52:19,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:52:19,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [445692197] [2020-10-28 19:52:19,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:52:19,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:19,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:19,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:19,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:19,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:19,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:19,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:19,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:24,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:24,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 19:52:24,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 19:52:24,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-28 19:52:24,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:24,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:24,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 19:52:24,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:52:24,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-28 19:52:24,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:24,403 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:52:24,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:52:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:24,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:24,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:24,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:52:24,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:24,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 19:52:24,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:24,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:24,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:52:24,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:24,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:52:24,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:24,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:52:24,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:24,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:24,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:24,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:52:24,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:24,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:52:24,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:24,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:24,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:52:24,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:24,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:52:24,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:52:24,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:52:24,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:24,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:24,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:24,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:52:24,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:24,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:52:24,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:24,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:24,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:52:24,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:24,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:52:24,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:24,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:52:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:24,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:24,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:24,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:52:24,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:24,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:52:24,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:24,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:24,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:52:24,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:24,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 19:52:24,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:24,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:52:24,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:24,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:24,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:24,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:52:24,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:24,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 19:52:24,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:24,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:24,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:52:24,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 19:52:24,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 19:52:24,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:24,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:52:24,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:24,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:24,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:24,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:24,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:24,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:26,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:29,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:29,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:52:29,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 19:52:29,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-28 19:52:29,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:29,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:29,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:29,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 19:52:29,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:29,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:29,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:52:29,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:29,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:29,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:29,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:29,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:29,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:52:29,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:29,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:29,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:29,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:29,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:29,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:29,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:52:29,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:29,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:29,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:29,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:29,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:29,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:29,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:29,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:29,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:29,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:29,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:29,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:29,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:52:29,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:29,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:29,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:29,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:29,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:29,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:52:29,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:29,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:29,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:29,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:29,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:29,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:29,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:52:29,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:29,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:29,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:29,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:29,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:29,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:52:29,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:29,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:29,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:29,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:29,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:29,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:29,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:52:29,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:29,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:29,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:29,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:29,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:29,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:52:29,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:29,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:29,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:29,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:29,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:29,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:29,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:52:29,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:29,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:29,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:29,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:52:29,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:29,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:52:29,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:29,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:29,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:29,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:52:29,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:29,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:29,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:52:29,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:29,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:29,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:29,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:52:29,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:29,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:29,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:29,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:29,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:29,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:52:29,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:29,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:29,691 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 19:52:29,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [445692197] [2020-10-28 19:52:29,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:52:29,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 19:52:29,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686666321] [2020-10-28 19:52:29,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 19:52:29,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:52:29,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 19:52:29,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-28 19:52:29,693 INFO L87 Difference]: Start difference. First operand 1713 states and 2411 transitions. Second operand 10 states. [2020-10-28 19:52:29,872 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 19:52:31,992 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-28 19:52:34,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:52:34,530 INFO L93 Difference]: Finished difference Result 4650 states and 7183 transitions. [2020-10-28 19:52:34,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-28 19:52:34,531 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 121 [2020-10-28 19:52:34,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:52:34,551 INFO L225 Difference]: With dead ends: 4650 [2020-10-28 19:52:34,551 INFO L226 Difference]: Without dead ends: 2959 [2020-10-28 19:52:34,562 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2020-10-28 19:52:34,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2959 states. [2020-10-28 19:52:34,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2959 to 1933. [2020-10-28 19:52:34,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1933 states. [2020-10-28 19:52:34,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1933 states to 1933 states and 2647 transitions. [2020-10-28 19:52:34,856 INFO L78 Accepts]: Start accepts. Automaton has 1933 states and 2647 transitions. Word has length 121 [2020-10-28 19:52:34,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:52:34,857 INFO L481 AbstractCegarLoop]: Abstraction has 1933 states and 2647 transitions. [2020-10-28 19:52:34,857 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 19:52:34,857 INFO L276 IsEmpty]: Start isEmpty. Operand 1933 states and 2647 transitions. [2020-10-28 19:52:34,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 19:52:34,858 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:52:34,858 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:52:34,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 19:52:34,859 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:52:34,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:52:34,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1887889530, now seen corresponding path program 1 times [2020-10-28 19:52:34,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:52:34,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [116705122] [2020-10-28 19:52:34,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:52:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:34,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:34,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:34,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:34,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:34,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:35,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:35,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:35,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:36,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:36,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:39,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:39,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 19:52:39,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-28 19:52:39,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-28 19:52:39,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:39,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:39,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 19:52:39,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:52:39,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 19:52:39,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:40,028 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:52:40,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:52:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:40,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:40,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:40,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:52:40,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:40,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 19:52:40,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:40,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:40,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:52:40,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:40,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:52:40,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:40,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:52:40,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:40,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:40,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:40,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:52:40,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:40,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:52:40,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:40,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:40,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:52:40,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:40,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:52:40,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:40,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:52:40,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:40,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:40,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:40,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:52:40,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:40,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:40,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:40,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:40,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:52:40,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:40,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:52:40,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:40,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:52:40,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:40,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:40,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:40,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:52:40,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:40,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:52:40,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:40,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:40,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:52:40,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:40,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 19:52:40,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:40,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:52:40,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:40,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:40,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:40,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:52:40,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:40,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 19:52:40,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:40,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:40,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:52:40,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 19:52:40,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 19:52:40,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:40,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:52:40,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:40,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:40,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:40,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:40,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:40,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:42,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:45,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:45,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:52:45,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 19:52:45,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 19:52:45,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:45,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:45,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:45,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 19:52:45,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:45,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:45,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:52:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:45,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:45,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:45,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:45,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:45,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:52:45,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:45,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:45,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:45,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:45,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:45,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:45,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:52:45,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:45,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:45,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:45,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:45,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:45,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:52:45,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:45,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:45,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:45,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:45,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:45,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:45,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:52:45,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:45,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:45,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:45,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:45,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:45,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:52:45,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:45,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:45,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:45,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:45,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:45,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:45,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:52:45,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:45,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:45,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:45,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:45,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:45,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:52:45,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:45,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:45,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:45,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:45,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:45,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:45,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:52:45,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:45,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:45,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:45,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:45,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:45,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:52:45,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:45,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:45,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:45,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:45,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:45,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:45,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:52:45,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:45,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:45,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:45,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:52:45,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:45,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:52:45,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:45,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:45,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:45,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:52:45,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:45,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:45,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:52:45,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:45,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:45,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:45,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:52:45,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:45,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:45,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:45,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:45,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:45,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:52:45,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:45,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:45,244 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 19:52:45,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [116705122] [2020-10-28 19:52:45,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:52:45,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 19:52:45,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528420318] [2020-10-28 19:52:45,245 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 19:52:45,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:52:45,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 19:52:45,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-28 19:52:45,246 INFO L87 Difference]: Start difference. First operand 1933 states and 2647 transitions. Second operand 9 states. [2020-10-28 19:52:45,414 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 19:52:48,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:52:48,815 INFO L93 Difference]: Finished difference Result 4998 states and 7265 transitions. [2020-10-28 19:52:48,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 19:52:48,815 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 121 [2020-10-28 19:52:48,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:52:48,836 INFO L225 Difference]: With dead ends: 4998 [2020-10-28 19:52:48,836 INFO L226 Difference]: Without dead ends: 3087 [2020-10-28 19:52:48,845 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 19:52:48,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3087 states. [2020-10-28 19:52:49,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3087 to 2153. [2020-10-28 19:52:49,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2153 states. [2020-10-28 19:52:49,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2153 states to 2153 states and 2879 transitions. [2020-10-28 19:52:49,255 INFO L78 Accepts]: Start accepts. Automaton has 2153 states and 2879 transitions. Word has length 121 [2020-10-28 19:52:49,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:52:49,255 INFO L481 AbstractCegarLoop]: Abstraction has 2153 states and 2879 transitions. [2020-10-28 19:52:49,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 19:52:49,255 INFO L276 IsEmpty]: Start isEmpty. Operand 2153 states and 2879 transitions. [2020-10-28 19:52:49,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 19:52:49,257 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:52:49,257 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:52:49,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 19:52:49,257 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:52:49,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:52:49,258 INFO L82 PathProgramCache]: Analyzing trace with hash 955235446, now seen corresponding path program 1 times [2020-10-28 19:52:49,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:52:49,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1806588567] [2020-10-28 19:52:49,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:52:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:49,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:49,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:49,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:49,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:49,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:49,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:49,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:50,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:50,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:54,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:54,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 19:52:54,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-28 19:52:54,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-28 19:52:54,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:54,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:54,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 19:52:54,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:52:54,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-28 19:52:54,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:54,433 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:52:54,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:52:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:54,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:54,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:54,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:52:54,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:54,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 19:52:54,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:54,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:54,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:52:54,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:54,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:52:54,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:54,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:52:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:54,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:54,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:54,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:52:54,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:54,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:54,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:54,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:54,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:52:54,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:54,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:52:54,475 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 12 [2020-10-28 19:52:54,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:54,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:54,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:54,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:52:54,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:54,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:52:54,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:54,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:54,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:52:54,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:54,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:52:54,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:54,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:52:54,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:54,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:54,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:54,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:52:54,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:54,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:52:54,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:54,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:54,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:52:54,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:54,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 19:52:54,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:54,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:52:54,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:54,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:54,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:54,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:52:54,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:54,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 19:52:54,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:54,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:54,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:52:54,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 19:52:54,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 19:52:54,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:54,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:52:54,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:54,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:54,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:54,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:54,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:54,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:56,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:59,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:59,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:52:59,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 19:52:59,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 19:52:59,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:59,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:59,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:59,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 19:52:59,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:59,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:52:59,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:52:59,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:59,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:59,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:59,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:59,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:59,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:59,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:59,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:59,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:59,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:59,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:59,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:59,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:52:59,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:59,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:59,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:59,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:59,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:59,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:59,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:59,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:59,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:59,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:59,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:59,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:59,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:52:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:59,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:59,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:59,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:59,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:59,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:59,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:59,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:59,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:59,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:59,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:59,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:59,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:52:59,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:59,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:59,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:59,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:59,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:59,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:59,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:59,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:59,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:59,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:59,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:59,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:59,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:52:59,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:59,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:59,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:59,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:52:59,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:59,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 19:52:59,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:59,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:59,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:59,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:52:59,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:59,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 19:52:59,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:52:59,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:59,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:59,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:59,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:52:59,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:59,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:52:59,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:59,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:59,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:59,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:52:59,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:59,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:59,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:52:59,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:52:59,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:52:59,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:52:59,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:52:59,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:52:59,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:52:59,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:52:59,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:52:59,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:52:59,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:52:59,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:52:59,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:52:59,646 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 19:52:59,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1806588567] [2020-10-28 19:52:59,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:52:59,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 19:52:59,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093914568] [2020-10-28 19:52:59,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 19:52:59,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:52:59,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 19:52:59,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-28 19:52:59,648 INFO L87 Difference]: Start difference. First operand 2153 states and 2879 transitions. Second operand 9 states. [2020-10-28 19:52:59,812 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 19:53:03,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:53:03,846 INFO L93 Difference]: Finished difference Result 5782 states and 8137 transitions. [2020-10-28 19:53:03,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 19:53:03,846 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 121 [2020-10-28 19:53:03,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:53:03,868 INFO L225 Difference]: With dead ends: 5782 [2020-10-28 19:53:03,869 INFO L226 Difference]: Without dead ends: 3651 [2020-10-28 19:53:03,878 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 19:53:03,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3651 states. [2020-10-28 19:53:04,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3651 to 2589. [2020-10-28 19:53:04,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2589 states. [2020-10-28 19:53:04,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2589 states to 2589 states and 3357 transitions. [2020-10-28 19:53:04,382 INFO L78 Accepts]: Start accepts. Automaton has 2589 states and 3357 transitions. Word has length 121 [2020-10-28 19:53:04,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:53:04,382 INFO L481 AbstractCegarLoop]: Abstraction has 2589 states and 3357 transitions. [2020-10-28 19:53:04,382 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 19:53:04,382 INFO L276 IsEmpty]: Start isEmpty. Operand 2589 states and 3357 transitions. [2020-10-28 19:53:04,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 19:53:04,384 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:53:04,384 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:53:04,384 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 19:53:04,384 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:53:04,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:53:04,385 INFO L82 PathProgramCache]: Analyzing trace with hash 184501880, now seen corresponding path program 1 times [2020-10-28 19:53:04,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:53:04,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1474027457] [2020-10-28 19:53:04,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:53:04,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:04,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:04,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:04,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:04,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:04,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:04,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:04,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:05,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:09,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:09,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 19:53:09,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-28 19:53:09,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-28 19:53:09,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:09,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:09,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 19:53:09,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:53:09,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-28 19:53:09,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:09,562 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:53:09,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:53:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:09,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:09,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:09,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:53:09,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:09,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 19:53:09,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:09,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:09,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:53:09,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:09,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:53:09,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:09,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:53:09,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:09,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:09,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:09,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:53:09,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:09,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:53:09,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:09,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:09,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:53:09,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:09,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:53:09,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:09,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:53:09,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:09,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:09,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:09,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:53:09,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:09,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:53:09,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:09,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:09,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:53:09,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:09,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:53:09,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:09,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:53:09,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:09,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:09,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:09,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:53:09,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:09,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:53:09,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:09,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:09,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:53:09,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:09,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 19:53:09,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:09,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:53:09,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:09,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:09,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:09,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:53:09,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:09,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 19:53:09,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:09,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:09,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:53:09,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 19:53:09,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 19:53:09,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:09,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:53:09,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:09,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:09,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:09,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:09,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:09,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:11,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:14,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:14,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:53:14,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 19:53:14,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-28 19:53:14,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:14,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:14,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:14,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 19:53:14,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:14,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:14,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:53:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:14,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:14,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:14,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:14,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:14,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:53:14,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:14,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:14,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:14,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:14,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:14,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:14,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:53:14,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:14,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:14,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:14,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:14,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:14,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:53:14,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:14,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:14,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:14,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:14,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:14,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:14,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:53:14,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:14,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:14,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:14,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:14,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:14,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:53:14,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:14,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:14,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:14,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:14,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:14,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:14,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:53:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:14,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:14,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:14,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:14,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:14,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:53:14,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:14,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:14,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:14,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:14,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:14,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:14,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:53:14,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:14,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:14,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:14,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:14,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:14,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:53:14,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:14,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:14,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:14,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:14,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:14,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:14,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:53:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:14,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:14,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:14,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:53:14,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:14,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:53:14,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:14,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:14,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:14,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:53:14,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:14,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:14,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:53:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:14,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:14,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:14,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:53:14,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:14,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:53:14,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:14,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:14,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:14,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:53:14,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:14,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:14,771 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 19:53:14,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1474027457] [2020-10-28 19:53:14,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:53:14,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 19:53:14,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465076382] [2020-10-28 19:53:14,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 19:53:14,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:53:14,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 19:53:14,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-28 19:53:14,773 INFO L87 Difference]: Start difference. First operand 2589 states and 3357 transitions. Second operand 9 states. [2020-10-28 19:53:14,950 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 19:53:18,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:53:18,785 INFO L93 Difference]: Finished difference Result 6502 states and 9019 transitions. [2020-10-28 19:53:18,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 19:53:18,794 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 121 [2020-10-28 19:53:18,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:53:18,817 INFO L225 Difference]: With dead ends: 6502 [2020-10-28 19:53:18,818 INFO L226 Difference]: Without dead ends: 3935 [2020-10-28 19:53:18,829 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 19:53:18,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3935 states. [2020-10-28 19:53:19,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3935 to 2809. [2020-10-28 19:53:19,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2809 states. [2020-10-28 19:53:19,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2809 states to 2809 states and 3569 transitions. [2020-10-28 19:53:19,342 INFO L78 Accepts]: Start accepts. Automaton has 2809 states and 3569 transitions. Word has length 121 [2020-10-28 19:53:19,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:53:19,342 INFO L481 AbstractCegarLoop]: Abstraction has 2809 states and 3569 transitions. [2020-10-28 19:53:19,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 19:53:19,343 INFO L276 IsEmpty]: Start isEmpty. Operand 2809 states and 3569 transitions. [2020-10-28 19:53:19,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 19:53:19,344 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:53:19,344 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:53:19,344 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 19:53:19,345 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:53:19,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:53:19,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1552092020, now seen corresponding path program 1 times [2020-10-28 19:53:19,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:53:19,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1294746969] [2020-10-28 19:53:19,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:53:19,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:19,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:19,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:19,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:19,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:19,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:19,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:19,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:24,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:24,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:24,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 19:53:24,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-28 19:53:24,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-28 19:53:24,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:24,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:24,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 19:53:24,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:53:24,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-28 19:53:24,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:24,506 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:53:24,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:53:24,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:24,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:24,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:24,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:53:24,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:24,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 19:53:24,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:24,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:24,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:53:24,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:24,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:53:24,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:24,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:53:24,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:24,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:24,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:24,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:53:24,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:24,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:53:24,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:24,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:24,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:53:24,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:24,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:53:24,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:24,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:53:24,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:24,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:24,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:24,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:53:24,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:24,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:53:24,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:24,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:24,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:53:24,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:24,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:53:24,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:24,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:53:24,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:24,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:24,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:24,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:53:24,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:24,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:53:24,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:24,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:24,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:53:24,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:24,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 19:53:24,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:24,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:53:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:24,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:24,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:24,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:53:24,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:24,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 19:53:24,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:24,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:24,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:53:24,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 19:53:24,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 19:53:24,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:24,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:53:24,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:24,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:24,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:24,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:24,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:24,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:26,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:29,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:29,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:53:29,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 19:53:29,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 19:53:29,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:29,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:29,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:29,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 19:53:29,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:29,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:29,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:53:29,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:29,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:29,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:29,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:29,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:29,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:53:29,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:29,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:29,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:29,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:29,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:29,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:29,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:53:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:29,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:29,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:29,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:29,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:29,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:53:29,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:29,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:29,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:29,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:29,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:29,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:29,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:53:29,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:29,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:29,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:29,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:29,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:29,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:53:29,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:29,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:29,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:29,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:29,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:29,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:29,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:53:29,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:29,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:29,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:29,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:29,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:29,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:53:29,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:29,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:29,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:29,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:29,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:29,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:29,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:53:29,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:29,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:29,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:29,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:29,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:29,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:53:29,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:29,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:29,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:29,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:29,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:29,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:29,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:53:29,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:29,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:29,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:29,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:53:29,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:29,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:53:29,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:29,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:29,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:29,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:53:29,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:29,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:29,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:53:29,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:29,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:29,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:29,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:53:29,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:29,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:53:29,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:29,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:29,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:29,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:53:29,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:29,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:29,698 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 19:53:29,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1294746969] [2020-10-28 19:53:29,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:53:29,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 19:53:29,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456127360] [2020-10-28 19:53:29,700 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 19:53:29,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:53:29,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 19:53:29,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-28 19:53:29,700 INFO L87 Difference]: Start difference. First operand 2809 states and 3569 transitions. Second operand 9 states. [2020-10-28 19:53:29,864 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 19:53:33,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:53:33,752 INFO L93 Difference]: Finished difference Result 7246 states and 9707 transitions. [2020-10-28 19:53:33,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 19:53:33,753 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 121 [2020-10-28 19:53:33,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:53:33,779 INFO L225 Difference]: With dead ends: 7246 [2020-10-28 19:53:33,779 INFO L226 Difference]: Without dead ends: 4459 [2020-10-28 19:53:33,791 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 19:53:33,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4459 states. [2020-10-28 19:53:34,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4459 to 3221. [2020-10-28 19:53:34,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3221 states. [2020-10-28 19:53:34,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3221 states to 3221 states and 4005 transitions. [2020-10-28 19:53:34,233 INFO L78 Accepts]: Start accepts. Automaton has 3221 states and 4005 transitions. Word has length 121 [2020-10-28 19:53:34,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:53:34,233 INFO L481 AbstractCegarLoop]: Abstraction has 3221 states and 4005 transitions. [2020-10-28 19:53:34,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 19:53:34,234 INFO L276 IsEmpty]: Start isEmpty. Operand 3221 states and 4005 transitions. [2020-10-28 19:53:34,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 19:53:34,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:53:34,235 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:53:34,235 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 19:53:34,235 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:53:34,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:53:34,235 INFO L82 PathProgramCache]: Analyzing trace with hash 997713400, now seen corresponding path program 1 times [2020-10-28 19:53:34,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:53:34,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1436071488] [2020-10-28 19:53:34,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:53:34,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:34,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:34,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:34,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:34,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:34,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:34,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:35,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:39,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:39,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 19:53:39,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 19:53:39,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-28 19:53:39,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:39,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:39,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 19:53:39,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:53:39,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-28 19:53:39,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:39,408 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:53:39,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:53:39,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:39,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:39,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:39,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:53:39,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:39,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 19:53:39,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:39,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:39,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:53:39,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:39,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:53:39,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:39,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:53:39,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:39,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:39,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:39,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:53:39,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:39,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:53:39,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:39,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:39,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:53:39,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:39,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:53:39,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:39,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:53:39,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:39,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:39,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:39,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:53:39,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:39,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:53:39,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:39,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:39,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:53:39,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:39,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:53:39,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:39,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:53:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:39,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:39,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:39,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:53:39,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:39,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:53:39,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:39,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:39,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:53:39,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:39,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 19:53:39,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:39,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:53:39,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:39,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:39,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:39,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:53:39,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:39,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 19:53:39,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:39,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:39,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:53:39,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 19:53:39,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 19:53:39,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:39,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:53:39,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:39,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:39,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:39,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:39,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:39,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:41,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:44,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:44,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:53:44,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 19:53:44,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 19:53:44,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:44,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:44,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:44,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 19:53:44,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:44,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:44,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:53:44,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:44,557 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: 11 [2020-10-28 19:53:44,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:44,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [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: 1 [2020-10-28 19:53:44,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:44,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:44,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:44,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:53:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:44,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:44,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:44,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:44,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:44,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:53:44,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:44,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:44,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:44,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:44,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:44,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:44,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:53:44,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:44,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:44,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:44,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:44,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:44,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:53:44,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:44,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:44,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:44,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:44,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:44,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:44,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:53:44,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:44,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:44,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:44,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:44,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:44,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:53:44,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:44,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:44,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:44,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:44,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:44,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:44,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:53:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:44,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:44,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:44,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:44,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:44,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:53:44,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:44,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:44,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:44,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:44,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:44,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:44,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:53:44,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:44,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:44,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:44,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:53:44,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:44,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:53:44,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:44,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:44,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:44,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:53:44,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:44,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:44,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:53:44,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:44,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:44,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:44,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:53:44,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:44,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:53:44,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:44,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:44,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:44,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:53:44,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:44,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:44,598 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 19:53:44,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1436071488] [2020-10-28 19:53:44,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:53:44,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 19:53:44,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864739758] [2020-10-28 19:53:44,599 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 19:53:44,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:53:44,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 19:53:44,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-28 19:53:44,600 INFO L87 Difference]: Start difference. First operand 3221 states and 4005 transitions. Second operand 9 states. [2020-10-28 19:53:44,767 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 19:53:47,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:53:47,719 INFO L93 Difference]: Finished difference Result 7658 states and 9951 transitions. [2020-10-28 19:53:47,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 19:53:47,724 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 121 [2020-10-28 19:53:47,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:53:47,741 INFO L225 Difference]: With dead ends: 7658 [2020-10-28 19:53:47,742 INFO L226 Difference]: Without dead ends: 4459 [2020-10-28 19:53:47,750 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 19:53:47,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4459 states. [2020-10-28 19:53:48,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4459 to 3221. [2020-10-28 19:53:48,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3221 states. [2020-10-28 19:53:48,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3221 states to 3221 states and 3981 transitions. [2020-10-28 19:53:48,246 INFO L78 Accepts]: Start accepts. Automaton has 3221 states and 3981 transitions. Word has length 121 [2020-10-28 19:53:48,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:53:48,246 INFO L481 AbstractCegarLoop]: Abstraction has 3221 states and 3981 transitions. [2020-10-28 19:53:48,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 19:53:48,246 INFO L276 IsEmpty]: Start isEmpty. Operand 3221 states and 3981 transitions. [2020-10-28 19:53:48,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 19:53:48,248 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:53:48,248 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:53:48,248 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 19:53:48,248 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:53:48,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:53:48,249 INFO L82 PathProgramCache]: Analyzing trace with hash -2018255236, now seen corresponding path program 1 times [2020-10-28 19:53:48,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:53:48,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1208988641] [2020-10-28 19:53:48,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:53:48,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:48,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:48,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:48,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:48,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:48,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:48,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:53,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:53,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 19:53:53,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 19:53:53,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-28 19:53:53,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:53,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:53,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 19:53:53,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:53:53,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-28 19:53:53,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:53,418 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:53:53,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:53:53,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:53,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:53,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:53,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:53:53,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:53,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 19:53:53,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:53,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:53,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:53:53,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:53,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 19:53:53,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:53,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:53:53,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:53,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:53,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:53,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:53:53,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:53,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:53:53,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:53,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:53,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:53:53,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:53,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 19:53:53,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:53:53,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:53:53,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:53,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:53,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:53,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:53:53,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:53,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:53:53,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:53,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:53,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:53:53,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:53,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 19:53:53,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:53,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:53:53,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:53,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:53,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:53,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:53:53,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:53,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:53:53,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:53,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:53,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 19:53:53,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:53,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 19:53:53,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:53,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:53:53,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:53,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:53,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:53,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:53:53,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:53,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 19:53:53,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:53,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:53,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:53:53,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 19:53:53,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 19:53:53,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:53,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:53:53,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:53,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:53,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:53,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:53,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:53,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:55,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:58,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:58,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:53:58,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 19:53:58,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 19:53:58,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:58,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:58,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:58,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 19:53:58,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:58,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:58,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:53:58,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:58,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:58,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:58,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:58,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:58,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:53:58,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:58,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:58,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:58,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:58,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:58,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:58,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:53:58,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:58,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:58,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:58,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:58,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:58,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:53:58,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:58,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:58,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:58,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:58,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:58,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:58,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:53:58,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:58,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:58,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:58,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:58,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:58,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:53:58,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:58,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:58,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:58,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:58,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:58,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:58,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:53:58,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:58,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:58,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:58,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:58,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:58,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:53:58,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:58,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:58,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:58,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:58,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:58,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:58,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:53:58,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:58,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:58,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:58,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:53:58,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:58,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:53:58,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:58,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:58,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:58,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:53:58,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:58,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:58,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:53:58,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:58,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:58,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:58,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:53:58,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:58,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:53:58,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:58,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:58,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:58,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:53:58,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:58,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:58,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:53:58,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:53:58,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:53:58,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:53:58,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:53:58,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:53:58,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:53:58,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:53:58,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:53:58,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:53:58,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:53:58,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:53:58,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:53:58,597 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 19:53:58,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1208988641] [2020-10-28 19:53:58,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:53:58,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 19:53:58,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530103905] [2020-10-28 19:53:58,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 19:53:58,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:53:58,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 19:53:58,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-28 19:53:58,599 INFO L87 Difference]: Start difference. First operand 3221 states and 3981 transitions. Second operand 8 states. [2020-10-28 19:53:58,753 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 19:54:03,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:54:03,484 INFO L93 Difference]: Finished difference Result 11827 states and 15259 transitions. [2020-10-28 19:54:03,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 19:54:03,484 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 121 [2020-10-28 19:54:03,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:54:03,516 INFO L225 Difference]: With dead ends: 11827 [2020-10-28 19:54:03,516 INFO L226 Difference]: Without dead ends: 8628 [2020-10-28 19:54:03,524 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-10-28 19:54:03,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8628 states. [2020-10-28 19:54:04,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8628 to 6445. [2020-10-28 19:54:04,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6445 states. [2020-10-28 19:54:04,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6445 states to 6445 states and 7943 transitions. [2020-10-28 19:54:04,346 INFO L78 Accepts]: Start accepts. Automaton has 6445 states and 7943 transitions. Word has length 121 [2020-10-28 19:54:04,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:54:04,346 INFO L481 AbstractCegarLoop]: Abstraction has 6445 states and 7943 transitions. [2020-10-28 19:54:04,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 19:54:04,347 INFO L276 IsEmpty]: Start isEmpty. Operand 6445 states and 7943 transitions. [2020-10-28 19:54:04,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 19:54:04,348 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:54:04,348 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:54:04,348 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 19:54:04,348 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:54:04,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:54:04,349 INFO L82 PathProgramCache]: Analyzing trace with hash -417184130, now seen corresponding path program 1 times [2020-10-28 19:54:04,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:54:04,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [932122067] [2020-10-28 19:54:04,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:54:04,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:04,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:04,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:04,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:04,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:04,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:05,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:09,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:09,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 19:54:09,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 19:54:09,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-28 19:54:09,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:09,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:09,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 19:54:09,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-28 19:54:09,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 19:54:09,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:09,506 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:54:09,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:54:09,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:09,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:09,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:09,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:54:09,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:09,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 19:54:09,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:09,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:09,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:09,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:09,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:09,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:09,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:54:09,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:09,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:09,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:09,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:54:09,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:09,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:54:09,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:09,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:09,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:09,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:09,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:09,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:09,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:54:09,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:09,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:09,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:09,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:54:09,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:09,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:54:09,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:09,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:09,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:09,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:09,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:09,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:09,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:54:09,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:09,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:09,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:09,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:54:09,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:09,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:54:09,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:09,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:09,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:09,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:09,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:09,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:09,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:54:09,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:09,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:09,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:09,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:54:09,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:09,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:54:09,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:09,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:09,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:09,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:09,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:09,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:09,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:54:09,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:09,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:09,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:09,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:09,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:10,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:14,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:14,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:54:14,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 19:54:14,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-28 19:54:14,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:14,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:14,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 19:54:14,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 19:54:14,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 19:54:14,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:14,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:54:14,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:14,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:14,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:14,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:54:14,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:14,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 19:54:14,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:14,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:14,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:14,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:14,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:14,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:14,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:54:14,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:14,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:14,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:14,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:54:14,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:14,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:54:14,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:14,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:14,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:14,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:14,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:14,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:14,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:54:14,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:14,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:14,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:14,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:54:14,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:14,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:54:14,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:14,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:14,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:14,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:14,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:14,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:14,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:54:14,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:14,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:14,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:14,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:54:14,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:14,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:54:14,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:14,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:14,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:54:14,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:14,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 19:54:14,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:14,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:54:14,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:14,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:14,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:14,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:54:14,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:14,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:54:14,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:14,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:14,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:14,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 19:54:14,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:14,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:14,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:54:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:14,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:14,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:14,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:54:14,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:14,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:54:14,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:14,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:14,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:14,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:54:14,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:14,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:14,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:54:14,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:14,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:14,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:14,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:54:14,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:14,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:54:14,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:14,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:14,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:14,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:54:14,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:14,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:14,743 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 19:54:14,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [932122067] [2020-10-28 19:54:14,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:54:14,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 19:54:14,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109802828] [2020-10-28 19:54:14,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 19:54:14,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:54:14,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 19:54:14,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-28 19:54:14,745 INFO L87 Difference]: Start difference. First operand 6445 states and 7943 transitions. Second operand 10 states. [2020-10-28 19:54:15,551 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-28 19:54:15,711 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-28 19:54:15,946 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-28 19:54:16,172 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 19:54:19,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:54:19,529 INFO L93 Difference]: Finished difference Result 15061 states and 19551 transitions. [2020-10-28 19:54:19,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 19:54:19,530 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 121 [2020-10-28 19:54:19,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:54:19,568 INFO L225 Difference]: With dead ends: 15061 [2020-10-28 19:54:19,569 INFO L226 Difference]: Without dead ends: 8639 [2020-10-28 19:54:19,588 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 19:54:19,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8639 states. [2020-10-28 19:54:20,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8639 to 6485. [2020-10-28 19:54:20,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6485 states. [2020-10-28 19:54:20,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6485 states to 6485 states and 7919 transitions. [2020-10-28 19:54:20,520 INFO L78 Accepts]: Start accepts. Automaton has 6485 states and 7919 transitions. Word has length 121 [2020-10-28 19:54:20,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:54:20,520 INFO L481 AbstractCegarLoop]: Abstraction has 6485 states and 7919 transitions. [2020-10-28 19:54:20,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 19:54:20,520 INFO L276 IsEmpty]: Start isEmpty. Operand 6485 states and 7919 transitions. [2020-10-28 19:54:20,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 19:54:20,522 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:54:20,522 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:54:20,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 19:54:20,522 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:54:20,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:54:20,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1521977916, now seen corresponding path program 1 times [2020-10-28 19:54:20,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:54:20,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1709145535] [2020-10-28 19:54:20,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:54:20,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:20,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:20,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:20,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:20,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:21,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:25,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:25,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 19:54:25,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 19:54:25,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-28 19:54:25,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:25,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:25,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 19:54:25,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-28 19:54:25,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 19:54:25,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:25,710 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:54:25,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:54:25,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:25,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:25,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:25,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:54:25,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:25,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 19:54:25,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:25,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:25,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:25,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:25,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:25,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:25,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:54:25,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:25,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:25,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:25,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:54:25,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:25,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:54:25,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:25,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:25,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:25,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:25,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:25,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:25,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:54:25,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:25,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:25,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:25,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:54:25,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:25,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:54:25,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:25,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:25,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:25,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:25,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:25,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:25,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:54:25,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:25,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:25,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:25,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:54:25,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:25,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:54:25,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:25,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:25,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:25,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:25,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:25,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:25,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:54:25,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:25,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:25,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:25,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:54:25,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:25,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 19:54:25,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:25,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:25,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:25,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:25,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:25,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:25,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:54:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:25,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:25,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:25,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:26,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:26,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:26,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:54:26,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 19:54:26,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1025 [2020-10-28 19:54:26,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:26,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:26,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 19:54:26,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 19:54:26,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 19:54:26,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:26,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:54:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:26,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:26,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:26,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:54:26,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:26,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:54:26,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:26,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:26,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:26,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:26,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:26,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:26,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:54:26,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:26,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:26,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:26,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:54:26,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:26,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:54:26,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:26,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:26,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:54:26,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:26,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 19:54:26,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:26,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:54:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:26,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:26,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:26,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:54:26,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:26,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:54:26,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:26,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:26,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:26,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 19:54:26,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:26,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:26,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:54:26,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:26,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:26,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:26,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:54:26,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:26,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:54:26,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:26,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:26,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:26,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 19:54:26,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:26,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:26,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:54:26,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:26,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:26,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:26,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:54:26,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:26,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:54:26,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:26,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:26,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:26,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 19:54:26,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:26,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:26,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:54:26,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:26,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:26,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:26,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:54:26,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:26,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:54:26,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:26,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:26,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:26,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:54:26,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:26,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:26,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:54:26,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:26,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:26,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:26,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:54:26,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:26,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:54:26,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:26,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:26,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:26,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:54:26,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:26,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:26,976 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 19:54:26,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1709145535] [2020-10-28 19:54:26,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:54:26,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 19:54:26,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919784488] [2020-10-28 19:54:26,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 19:54:26,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:54:26,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 19:54:26,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-28 19:54:26,978 INFO L87 Difference]: Start difference. First operand 6485 states and 7919 transitions. Second operand 10 states. [2020-10-28 19:54:27,655 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 19:54:27,828 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-28 19:54:27,996 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-28 19:54:28,226 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 19:54:31,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:54:31,785 INFO L93 Difference]: Finished difference Result 15205 states and 19535 transitions. [2020-10-28 19:54:31,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 19:54:31,786 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 121 [2020-10-28 19:54:31,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:54:31,816 INFO L225 Difference]: With dead ends: 15205 [2020-10-28 19:54:31,816 INFO L226 Difference]: Without dead ends: 8743 [2020-10-28 19:54:31,835 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 19:54:31,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8743 states. [2020-10-28 19:54:32,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8743 to 6525. [2020-10-28 19:54:32,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6525 states. [2020-10-28 19:54:32,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6525 states to 6525 states and 7895 transitions. [2020-10-28 19:54:32,725 INFO L78 Accepts]: Start accepts. Automaton has 6525 states and 7895 transitions. Word has length 121 [2020-10-28 19:54:32,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:54:32,725 INFO L481 AbstractCegarLoop]: Abstraction has 6525 states and 7895 transitions. [2020-10-28 19:54:32,725 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 19:54:32,726 INFO L276 IsEmpty]: Start isEmpty. Operand 6525 states and 7895 transitions. [2020-10-28 19:54:32,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 19:54:32,727 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:54:32,727 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:54:32,727 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 19:54:32,727 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:54:32,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:54:32,728 INFO L82 PathProgramCache]: Analyzing trace with hash 790010490, now seen corresponding path program 1 times [2020-10-28 19:54:32,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:54:32,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [904683820] [2020-10-28 19:54:32,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:54:32,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:32,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:32,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:32,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:32,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:37,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:37,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 19:54:37,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 19:54:37,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 19:54:37,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:37,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:37,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 19:54:37,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-28 19:54:37,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 19:54:37,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:37,873 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 19:54:37,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:54:37,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:37,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:37,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:37,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:54:37,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:37,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:54:37,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:37,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:37,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:37,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:37,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:37,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:37,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 19:54:37,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:37,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:37,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:37,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:54:37,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:37,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:54:37,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:37,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:37,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:37,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:37,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:37,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:37,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 19:54:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:37,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:37,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:37,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:54:37,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:37,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:54:37,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:37,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:37,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:37,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:37,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:37,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:37,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 19:54:37,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:37,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:37,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:37,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 19:54:37,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:37,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:54:37,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:37,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:37,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:37,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:37,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:37,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:37,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 19:54:37,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:37,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:37,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:37,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:54:37,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:37,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:54:37,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:37,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:37,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:37,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:37,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:37,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:37,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 19:54:37,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:37,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:37,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:38,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:38,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:38,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 19:54:38,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 19:54:38,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-10-28 19:54:38,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:38,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:38,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 19:54:38,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-28 19:54:38,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 19:54:38,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:38,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:54:38,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:38,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:38,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:38,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:54:38,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:38,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:54:38,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:38,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:38,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:38,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:38,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:38,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:38,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 19:54:38,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:38,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:38,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:38,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:54:38,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:38,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 19:54:38,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:38,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:38,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:38,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:38,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:38,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:38,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 19:54:38,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:38,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:38,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:38,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:54:38,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:38,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 19:54:38,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:38,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:38,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 19:54:38,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:54:38,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 19:54:38,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:38,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 19:54:38,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:38,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:38,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:38,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:54:38,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:38,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:54:38,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:38,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:38,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:38,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 19:54:38,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:38,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:38,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 19:54:38,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:38,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:38,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:38,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 19:54:38,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:38,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:54:38,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:38,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:38,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:38,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 19:54:38,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:38,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:38,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 19:54:38,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:38,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:38,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:38,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 19:54:38,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:38,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:54:38,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:38,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:38,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:38,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 19:54:38,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:38,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:38,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-28 19:54:38,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:54:38,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:54:38,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:54:38,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 19:54:38,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:54:38,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:54:38,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:54:38,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:54:38,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:54:38,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 19:54:38,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:54:38,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:54:38,357 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 19:54:38,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [904683820] [2020-10-28 19:54:38,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:54:38,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 19:54:38,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788629357] [2020-10-28 19:54:38,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 19:54:38,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:54:38,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 19:54:38,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-28 19:54:38,359 INFO L87 Difference]: Start difference. First operand 6525 states and 7895 transitions. Second operand 10 states. [2020-10-28 19:54:39,153 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 19:54:39,331 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-28 19:54:39,568 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 19:54:39,778 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 19:54:43,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:54:43,488 INFO L93 Difference]: Finished difference Result 15277 states and 19407 transitions. [2020-10-28 19:54:43,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 19:54:43,488 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 121 [2020-10-28 19:54:43,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:54:43,521 INFO L225 Difference]: With dead ends: 15277 [2020-10-28 19:54:43,521 INFO L226 Difference]: Without dead ends: 8775 [2020-10-28 19:54:43,536 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 19:54:43,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8775 states.