/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/eca-rers2012/Problem14_label45.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 12:55:00,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 12:55:00,524 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 12:55:00,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 12:55:00,583 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 12:55:00,590 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 12:55:00,592 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 12:55:00,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 12:55:00,600 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 12:55:00,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 12:55:00,607 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 12:55:00,609 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 12:55:00,609 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 12:55:00,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 12:55:00,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 12:55:00,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 12:55:00,618 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 12:55:00,622 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 12:55:00,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 12:55:00,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 12:55:00,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 12:55:00,636 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 12:55:00,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 12:55:00,638 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 12:55:00,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 12:55:00,642 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 12:55:00,642 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 12:55:00,643 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 12:55:00,644 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 12:55:00,645 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 12:55:00,645 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 12:55:00,646 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 12:55:00,647 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 12:55:00,648 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 12:55:00,667 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 12:55:00,667 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 12:55:00,668 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 12:55:00,669 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 12:55:00,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 12:55:00,670 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 12:55:00,671 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 12:55:00,672 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 12:55:00,698 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 12:55:00,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 12:55:00,700 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 12:55:00,700 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 12:55:00,701 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 12:55:00,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 12:55:00,701 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 12:55:00,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 12:55:00,702 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 12:55:00,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 12:55:00,702 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 12:55:00,702 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 12:55:00,702 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 12:55:00,702 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 12:55:00,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 12:55:00,703 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 12:55:00,703 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 12:55:00,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 12:55:00,703 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 12:55:00,704 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 12:55:00,704 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 12:55:00,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 12:55:00,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 12:55:00,705 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 12:55:00,705 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 12:55:00,705 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 12:55:00,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 12:55:00,705 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 12:55:00,706 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 12:55:00,706 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 12:55:01,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 12:55:01,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 12:55:01,169 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 12:55:01,174 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 12:55:01,175 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 12:55:01,176 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label45.c [2020-10-28 12:55:01,264 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/184a9358f/f48e408b049e4bee951b36ae63c6ee5a/FLAG6fe25dfb9 [2020-10-28 12:55:02,148 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 12:55:02,150 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label45.c [2020-10-28 12:55:02,164 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/184a9358f/f48e408b049e4bee951b36ae63c6ee5a/FLAG6fe25dfb9 [2020-10-28 12:55:02,321 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/184a9358f/f48e408b049e4bee951b36ae63c6ee5a [2020-10-28 12:55:02,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 12:55:02,334 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 12:55:02,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 12:55:02,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 12:55:02,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 12:55:02,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:55:02" (1/1) ... [2020-10-28 12:55:02,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b835bcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:55:02, skipping insertion in model container [2020-10-28 12:55:02,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:55:02" (1/1) ... [2020-10-28 12:55:02,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 12:55:02,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 12:55:03,053 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:55:03,072 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 12:55:03,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:55:03,265 INFO L208 MainTranslator]: Completed translation [2020-10-28 12:55:03,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:55:03 WrapperNode [2020-10-28 12:55:03,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 12:55:03,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 12:55:03,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 12:55:03,268 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 12:55:03,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:55:03" (1/1) ... [2020-10-28 12:55:03,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:55:03" (1/1) ... [2020-10-28 12:55:03,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:55:03" (1/1) ... [2020-10-28 12:55:03,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:55:03" (1/1) ... [2020-10-28 12:55:03,390 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:55:03" (1/1) ... [2020-10-28 12:55:03,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:55:03" (1/1) ... [2020-10-28 12:55:03,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:55:03" (1/1) ... [2020-10-28 12:55:03,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 12:55:03,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 12:55:03,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 12:55:03,453 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 12:55:03,454 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:55:03" (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 12:55:03,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 12:55:03,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 12:55:03,534 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 12:55:03,534 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 12:55:03,534 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 12:55:03,534 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 12:55:03,534 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 12:55:03,535 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 12:55:03,535 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 12:55:03,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 12:55:03,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 12:55:03,535 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 12:55:03,536 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 12:55:03,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 12:55:03,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 12:55:03,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 12:55:03,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 12:55:03,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 12:55:03,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 12:55:05,393 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 12:55:05,394 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 12:55:05,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:55:05 BoogieIcfgContainer [2020-10-28 12:55:05,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 12:55:05,399 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 12:55:05,399 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 12:55:05,403 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 12:55:05,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 12:55:02" (1/3) ... [2020-10-28 12:55:05,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6827b656 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:55:05, skipping insertion in model container [2020-10-28 12:55:05,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:55:03" (2/3) ... [2020-10-28 12:55:05,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6827b656 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:55:05, skipping insertion in model container [2020-10-28 12:55:05,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:55:05" (3/3) ... [2020-10-28 12:55:05,408 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label45.c [2020-10-28 12:55:05,421 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 12:55:05,427 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 12:55:05,444 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 12:55:05,476 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 12:55:05,476 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 12:55:05,477 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 12:55:05,477 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 12:55:05,477 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 12:55:05,477 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 12:55:05,477 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 12:55:05,478 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 12:55:05,504 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-10-28 12:55:05,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-28 12:55:05,512 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:55:05,514 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] [2020-10-28 12:55:05,514 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:55:05,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:55:05,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1253366042, now seen corresponding path program 1 times [2020-10-28 12:55:05,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:55:05,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [190467434] [2020-10-28 12:55:05,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:55:05,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:05,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:06,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:06,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-28 12:55:06,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:06,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 574 [2020-10-28 12:55:06,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:06,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:06,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:55:06,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:55:06,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-28 12:55:06,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 12:55:06,588 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-28 12:55:06,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:55:06,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:06,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:06,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:06,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:55:06,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:06,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 12:55:06,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:06,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:06,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:55:06,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:06,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:55:06,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:55:06,682 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 12:55:06,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [190467434] [2020-10-28 12:55:06,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:55:06,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 12:55:06,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900157030] [2020-10-28 12:55:06,693 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:55:06,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:55:06,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:55:06,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:55:06,716 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 5 states. [2020-10-28 12:55:10,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:55:10,776 INFO L93 Difference]: Finished difference Result 891 states and 1619 transitions. [2020-10-28 12:55:10,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 12:55:10,781 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2020-10-28 12:55:10,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:55:10,802 INFO L225 Difference]: With dead ends: 891 [2020-10-28 12:55:10,802 INFO L226 Difference]: Without dead ends: 565 [2020-10-28 12:55:10,815 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:55:10,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-10-28 12:55:10,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 559. [2020-10-28 12:55:10,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-10-28 12:55:10,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 907 transitions. [2020-10-28 12:55:10,972 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 907 transitions. Word has length 43 [2020-10-28 12:55:10,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:55:10,973 INFO L481 AbstractCegarLoop]: Abstraction has 559 states and 907 transitions. [2020-10-28 12:55:10,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:55:10,973 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 907 transitions. [2020-10-28 12:55:10,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-28 12:55:10,980 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:55:10,981 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:10,981 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 12:55:10,981 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:55:10,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:55:10,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1084435551, now seen corresponding path program 1 times [2020-10-28 12:55:10,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:55:10,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [730334515] [2020-10-28 12:55:10,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:55:11,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:11,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:11,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:12,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:12,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:55:12,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:55:12,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1166 [2020-10-28 12:55:12,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:12,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:12,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:55:12,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:55:12,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-28 12:55:12,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:55:12,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:55:12,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:12,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:12,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:12,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:55:12,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:12,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:55:12,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:12,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:12,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:55:12,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:12,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:55:12,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:55:12,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:55:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:12,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:12,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:12,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:55:12,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:12,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-28 12:55:12,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:12,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:12,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:12,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:55:12,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-28 12:55:12,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:55:12,833 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:55:12,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [730334515] [2020-10-28 12:55:12,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:55:12,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:55:12,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515369420] [2020-10-28 12:55:12,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:55:12,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:55:12,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:55:12,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:55:12,841 INFO L87 Difference]: Start difference. First operand 559 states and 907 transitions. Second operand 7 states. [2020-10-28 12:55:15,671 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-28 12:55:16,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:55:16,151 INFO L93 Difference]: Finished difference Result 1322 states and 2176 transitions. [2020-10-28 12:55:16,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:55:16,153 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 129 [2020-10-28 12:55:16,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:55:16,162 INFO L225 Difference]: With dead ends: 1322 [2020-10-28 12:55:16,162 INFO L226 Difference]: Without dead ends: 769 [2020-10-28 12:55:16,166 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:55:16,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2020-10-28 12:55:16,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 567. [2020-10-28 12:55:16,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 567 states. [2020-10-28 12:55:16,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 820 transitions. [2020-10-28 12:55:16,227 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 820 transitions. Word has length 129 [2020-10-28 12:55:16,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:55:16,231 INFO L481 AbstractCegarLoop]: Abstraction has 567 states and 820 transitions. [2020-10-28 12:55:16,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:55:16,231 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 820 transitions. [2020-10-28 12:55:16,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-28 12:55:16,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:55:16,239 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:16,239 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 12:55:16,239 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:55:16,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:55:16,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1712667021, now seen corresponding path program 1 times [2020-10-28 12:55:16,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:55:16,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1761140618] [2020-10-28 12:55:16,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:55:16,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:16,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:16,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:16,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:18,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:18,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-28 12:55:18,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:55:18,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2217 [2020-10-28 12:55:18,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:18,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:18,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:55:18,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:55:18,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 12:55:18,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:18,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:55:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:18,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:18,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:18,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:55:18,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:18,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 12:55:18,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:18,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:18,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:55:18,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:18,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:55:18,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:18,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:55:18,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:18,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:18,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:18,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-28 12:55:18,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:18,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-28 12:55:18,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:18,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:18,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:18,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:55:18,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-28 12:55:18,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:18,983 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:55:18,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1761140618] [2020-10-28 12:55:18,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:55:18,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:55:18,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700919463] [2020-10-28 12:55:18,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:55:18,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:55:18,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:55:18,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:55:18,986 INFO L87 Difference]: Start difference. First operand 567 states and 820 transitions. Second operand 7 states. [2020-10-28 12:55:21,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:55:21,823 INFO L93 Difference]: Finished difference Result 1332 states and 1934 transitions. [2020-10-28 12:55:21,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:55:21,825 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 138 [2020-10-28 12:55:21,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:55:21,840 INFO L225 Difference]: With dead ends: 1332 [2020-10-28 12:55:21,841 INFO L226 Difference]: Without dead ends: 771 [2020-10-28 12:55:21,843 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:55:21,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2020-10-28 12:55:21,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 759. [2020-10-28 12:55:21,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 759 states. [2020-10-28 12:55:21,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 1082 transitions. [2020-10-28 12:55:21,890 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 1082 transitions. Word has length 138 [2020-10-28 12:55:21,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:55:21,890 INFO L481 AbstractCegarLoop]: Abstraction has 759 states and 1082 transitions. [2020-10-28 12:55:21,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:55:21,891 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 1082 transitions. [2020-10-28 12:55:21,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-10-28 12:55:21,896 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:55:21,896 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:55:21,897 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 12:55:21,898 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:55:21,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:55:21,899 INFO L82 PathProgramCache]: Analyzing trace with hash 2112467578, now seen corresponding path program 1 times [2020-10-28 12:55:21,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:55:21,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1792558565] [2020-10-28 12:55:21,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:55:21,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:21,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:22,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:22,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:22,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:24,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:26,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:26,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-10-28 12:55:26,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:55:26,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 12:55:26,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:26,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:26,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:26,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-28 12:55:26,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-28 12:55:26,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:27,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:55:27,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:27,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:27,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:27,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:55:27,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:27,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 12:55:27,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:27,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:27,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:27,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:27,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:27,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:55:27,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:55:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:27,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:27,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:27,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-28 12:55:27,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:27,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-28 12:55:27,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:27,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:27,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:55:27,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:27,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-28 12:55:27,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:55:27,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-28 12:55:27,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:27,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:27,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:27,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-28 12:55:27,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:27,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-28 12:55:27,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:27,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:27,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:27,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:55:27,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-28 12:55:27,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:27,826 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 136 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:55:27,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1792558565] [2020-10-28 12:55:27,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:55:27,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:55:27,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017872242] [2020-10-28 12:55:27,828 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:55:27,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:55:27,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:55:27,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:55:27,830 INFO L87 Difference]: Start difference. First operand 759 states and 1082 transitions. Second operand 8 states. [2020-10-28 12:55:31,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:55:31,328 INFO L93 Difference]: Finished difference Result 1970 states and 2972 transitions. [2020-10-28 12:55:31,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 12:55:31,329 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 207 [2020-10-28 12:55:31,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:55:31,340 INFO L225 Difference]: With dead ends: 1970 [2020-10-28 12:55:31,341 INFO L226 Difference]: Without dead ends: 1217 [2020-10-28 12:55:31,344 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-28 12:55:31,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2020-10-28 12:55:31,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 1135. [2020-10-28 12:55:31,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1135 states. [2020-10-28 12:55:31,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1135 states to 1135 states and 1510 transitions. [2020-10-28 12:55:31,404 INFO L78 Accepts]: Start accepts. Automaton has 1135 states and 1510 transitions. Word has length 207 [2020-10-28 12:55:31,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:55:31,405 INFO L481 AbstractCegarLoop]: Abstraction has 1135 states and 1510 transitions. [2020-10-28 12:55:31,405 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:55:31,405 INFO L276 IsEmpty]: Start isEmpty. Operand 1135 states and 1510 transitions. [2020-10-28 12:55:31,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-28 12:55:31,409 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:55:31,410 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:55:31,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 12:55:31,410 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:55:31,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:55:31,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1237901298, now seen corresponding path program 1 times [2020-10-28 12:55:31,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:55:31,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [107149637] [2020-10-28 12:55:31,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:55:31,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:31,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:31,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:31,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:32,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:36,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:36,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:36,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-10-28 12:55:36,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:55:36,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-28 12:55:36,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:36,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:36,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:36,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-28 12:55:36,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-28 12:55:36,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:36,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:55:36,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:36,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:36,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:36,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:55:36,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:36,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:55:36,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:36,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:36,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:36,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:36,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:36,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 12:55:36,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:55:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:36,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:36,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:36,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:55:36,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:36,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-28 12:55:36,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:36,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:36,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:55:36,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:36,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-28 12:55:36,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-28 12:55:36,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-28 12:55:36,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:36,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:36,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:36,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-28 12:55:36,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:36,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-28 12:55:36,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:36,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:36,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:36,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:55:36,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-28 12:55:36,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 12:55:37,089 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 140 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:55:37,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [107149637] [2020-10-28 12:55:37,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:55:37,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:55:37,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033075842] [2020-10-28 12:55:37,092 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:55:37,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:55:37,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:55:37,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:55:37,094 INFO L87 Difference]: Start difference. First operand 1135 states and 1510 transitions. Second operand 7 states. [2020-10-28 12:55:39,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:55:39,810 INFO L93 Difference]: Finished difference Result 2286 states and 3126 transitions. [2020-10-28 12:55:39,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:55:39,811 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 211 [2020-10-28 12:55:39,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:55:39,817 INFO L225 Difference]: With dead ends: 2286 [2020-10-28 12:55:39,817 INFO L226 Difference]: Without dead ends: 771 [2020-10-28 12:55:39,823 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:55:39,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2020-10-28 12:55:39,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 757. [2020-10-28 12:55:39,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 757 states. [2020-10-28 12:55:39,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 856 transitions. [2020-10-28 12:55:39,852 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 856 transitions. Word has length 211 [2020-10-28 12:55:39,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:55:39,852 INFO L481 AbstractCegarLoop]: Abstraction has 757 states and 856 transitions. [2020-10-28 12:55:39,852 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:55:39,852 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 856 transitions. [2020-10-28 12:55:39,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-10-28 12:55:39,858 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:55:39,858 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:39,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 12:55:39,859 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:55:39,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:55:39,860 INFO L82 PathProgramCache]: Analyzing trace with hash 1733947886, now seen corresponding path program 1 times [2020-10-28 12:55:39,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:55:39,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [249851337] [2020-10-28 12:55:39,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:55:39,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:39,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:40,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:41,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:44,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:44,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 322 [2020-10-28 12:55:44,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:55:44,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4547 [2020-10-28 12:55:44,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:44,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:44,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:55:44,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:55:44,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 185 [2020-10-28 12:55:44,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:44,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:55:44,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:44,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:44,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:44,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:55:44,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:44,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:55:44,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:44,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:44,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:55:44,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:44,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:55:44,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:44,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:55:44,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:44,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:44,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:44,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:55:44,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:44,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-10-28 12:55:44,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:44,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:44,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:44,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:55:44,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:55:44,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:55:45,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-28 12:55:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:45,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:45,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:45,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:55:45,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:45,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-28 12:55:45,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:45,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:45,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:45,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-28 12:55:45,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:45,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:55:45,453 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 70 proven. 81 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 12:55:45,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [249851337] [2020-10-28 12:55:45,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:55:45,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:55:45,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79711832] [2020-10-28 12:55:45,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:55:45,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:55:45,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:55:45,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:55:45,456 INFO L87 Difference]: Start difference. First operand 757 states and 856 transitions. Second operand 7 states. [2020-10-28 12:55:47,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:55:47,290 INFO L93 Difference]: Finished difference Result 1716 states and 1936 transitions. [2020-10-28 12:55:47,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:55:47,296 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 308 [2020-10-28 12:55:47,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:55:47,302 INFO L225 Difference]: With dead ends: 1716 [2020-10-28 12:55:47,303 INFO L226 Difference]: Without dead ends: 965 [2020-10-28 12:55:47,305 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:55:47,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2020-10-28 12:55:47,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 941. [2020-10-28 12:55:47,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 941 states. [2020-10-28 12:55:47,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1047 transitions. [2020-10-28 12:55:47,347 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1047 transitions. Word has length 308 [2020-10-28 12:55:47,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:55:47,347 INFO L481 AbstractCegarLoop]: Abstraction has 941 states and 1047 transitions. [2020-10-28 12:55:47,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:55:47,348 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1047 transitions. [2020-10-28 12:55:47,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2020-10-28 12:55:47,355 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:55:47,356 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:55:47,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 12:55:47,356 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:55:47,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:55:47,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1220276917, now seen corresponding path program 1 times [2020-10-28 12:55:47,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:55:47,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1993258422] [2020-10-28 12:55:47,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:55:47,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:47,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:47,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:47,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:47,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:52,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:52,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 433 [2020-10-28 12:55:52,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:55:52,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-28 12:55:52,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:52,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:52,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:52,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 119 [2020-10-28 12:55:52,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:55:52,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:55:52,662 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-28 12:55:52,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:55:52,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:52,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:52,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:52,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:55:52,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:52,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:55:52,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:52,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:52,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:52,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:52,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:52,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:52,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:55:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:52,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:52,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:52,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:55:52,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:52,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-28 12:55:52,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:52,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:52,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:55:52,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:52,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-28 12:55:52,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:52,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-28 12:55:52,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:52,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:53,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:53,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:55:53,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:53,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-10-28 12:55:53,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:53,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:53,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:53,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:55:53,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:55:53,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:53,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2020-10-28 12:55:53,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:53,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:53,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:53,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:55:53,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:53,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 12:55:53,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:53,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:53,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:53,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-28 12:55:53,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:53,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:53,528 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 215 proven. 85 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-28 12:55:53,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1993258422] [2020-10-28 12:55:53,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:55:53,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:55:53,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819544599] [2020-10-28 12:55:53,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:55:53,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:55:53,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:55:53,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:55:53,531 INFO L87 Difference]: Start difference. First operand 941 states and 1047 transitions. Second operand 7 states. [2020-10-28 12:55:55,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:55:55,503 INFO L93 Difference]: Finished difference Result 2465 states and 2810 transitions. [2020-10-28 12:55:55,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:55:55,504 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 417 [2020-10-28 12:55:55,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:55:55,516 INFO L225 Difference]: With dead ends: 2465 [2020-10-28 12:55:55,516 INFO L226 Difference]: Without dead ends: 1712 [2020-10-28 12:55:55,520 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:55:55,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2020-10-28 12:55:55,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1691. [2020-10-28 12:55:55,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1691 states. [2020-10-28 12:55:55,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 1884 transitions. [2020-10-28 12:55:55,575 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 1884 transitions. Word has length 417 [2020-10-28 12:55:55,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:55:55,576 INFO L481 AbstractCegarLoop]: Abstraction has 1691 states and 1884 transitions. [2020-10-28 12:55:55,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:55:55,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 1884 transitions. [2020-10-28 12:55:55,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2020-10-28 12:55:55,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:55:55,587 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:55:55,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 12:55:55,587 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:55:55,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:55:55,588 INFO L82 PathProgramCache]: Analyzing trace with hash -597321189, now seen corresponding path program 1 times [2020-10-28 12:55:55,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:55:55,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1325847914] [2020-10-28 12:55:55,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:55:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:55,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:55,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:55,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:56,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:00,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:00,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 457 [2020-10-28 12:56:00,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:56:00,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5056 [2020-10-28 12:56:00,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:00,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:00,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:00,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-10-28 12:56:00,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:56:00,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:00,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:56:00,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:00,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:00,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:00,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:56:00,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:00,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 12:56:00,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:00,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:00,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:00,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:00,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:00,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:00,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:56:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:00,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:00,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:00,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 12:56:00,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:00,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-28 12:56:00,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:00,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:00,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:56:00,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:00,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-28 12:56:00,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:56:01,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-28 12:56:01,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:01,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:01,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:01,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:56:01,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:01,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-10-28 12:56:01,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:01,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:01,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:01,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:56:01,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:56:01,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:01,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2020-10-28 12:56:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:01,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:01,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:01,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:56:01,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:01,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 12:56:01,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:01,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:01,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:01,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-28 12:56:01,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:01,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:01,736 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 239 proven. 85 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-28 12:56:01,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1325847914] [2020-10-28 12:56:01,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:56:01,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:56:01,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262095227] [2020-10-28 12:56:01,737 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:56:01,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:56:01,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:56:01,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:56:01,738 INFO L87 Difference]: Start difference. First operand 1691 states and 1884 transitions. Second operand 7 states. [2020-10-28 12:56:04,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:56:04,295 INFO L93 Difference]: Finished difference Result 4874 states and 5490 transitions. [2020-10-28 12:56:04,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:56:04,298 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 441 [2020-10-28 12:56:04,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:56:04,314 INFO L225 Difference]: With dead ends: 4874 [2020-10-28 12:56:04,314 INFO L226 Difference]: Without dead ends: 3189 [2020-10-28 12:56:04,319 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:56:04,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3189 states. [2020-10-28 12:56:04,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3189 to 2997. [2020-10-28 12:56:04,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2997 states. [2020-10-28 12:56:04,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2997 states to 2997 states and 3312 transitions. [2020-10-28 12:56:04,413 INFO L78 Accepts]: Start accepts. Automaton has 2997 states and 3312 transitions. Word has length 441 [2020-10-28 12:56:04,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:56:04,414 INFO L481 AbstractCegarLoop]: Abstraction has 2997 states and 3312 transitions. [2020-10-28 12:56:04,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:56:04,414 INFO L276 IsEmpty]: Start isEmpty. Operand 2997 states and 3312 transitions. [2020-10-28 12:56:04,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2020-10-28 12:56:04,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:56:04,422 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:56:04,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 12:56:04,422 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:56:04,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:56:04,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1283432098, now seen corresponding path program 1 times [2020-10-28 12:56:04,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:56:04,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1473472888] [2020-10-28 12:56:04,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:56:04,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:04,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:04,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:04,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:04,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:09,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:09,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 603 [2020-10-28 12:56:09,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:56:09,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-28 12:56:09,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:09,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:09,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:09,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 280 [2020-10-28 12:56:09,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:56:09,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:09,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:56:09,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:09,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:09,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:09,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:56:09,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:09,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:56:09,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:09,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:09,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:09,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:09,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:09,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:09,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:56:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:09,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:09,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:09,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:56:09,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:09,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:56:09,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:09,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:09,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:09,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:09,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:09,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:09,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-28 12:56:09,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:09,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:09,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:09,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:56:09,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:09,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-28 12:56:09,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:09,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:09,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:56:09,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:09,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-28 12:56:09,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:09,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2020-10-28 12:56:09,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:10,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:10,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:10,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:56:10,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:10,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-28 12:56:10,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:10,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:10,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:10,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:56:10,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:56:10,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:10,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2020-10-28 12:56:10,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:10,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:10,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:10,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-28 12:56:10,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:10,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:56:10,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:10,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:10,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:10,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-28 12:56:10,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:10,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:10,503 INFO L134 CoverageAnalysis]: Checked inductivity of 802 backedges. 415 proven. 94 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2020-10-28 12:56:10,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1473472888] [2020-10-28 12:56:10,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:56:10,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:56:10,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257456439] [2020-10-28 12:56:10,505 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:56:10,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:56:10,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:56:10,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:56:10,506 INFO L87 Difference]: Start difference. First operand 2997 states and 3312 transitions. Second operand 7 states. [2020-10-28 12:56:12,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:56:12,663 INFO L93 Difference]: Finished difference Result 6922 states and 7766 transitions. [2020-10-28 12:56:12,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:56:12,664 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 585 [2020-10-28 12:56:12,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:56:12,681 INFO L225 Difference]: With dead ends: 6922 [2020-10-28 12:56:12,682 INFO L226 Difference]: Without dead ends: 4297 [2020-10-28 12:56:12,688 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:56:12,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4297 states. [2020-10-28 12:56:12,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4297 to 3919. [2020-10-28 12:56:12,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3919 states. [2020-10-28 12:56:12,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3919 states to 3919 states and 4400 transitions. [2020-10-28 12:56:12,808 INFO L78 Accepts]: Start accepts. Automaton has 3919 states and 4400 transitions. Word has length 585 [2020-10-28 12:56:12,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:56:12,809 INFO L481 AbstractCegarLoop]: Abstraction has 3919 states and 4400 transitions. [2020-10-28 12:56:12,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:56:12,810 INFO L276 IsEmpty]: Start isEmpty. Operand 3919 states and 4400 transitions. [2020-10-28 12:56:12,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 662 [2020-10-28 12:56:12,818 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:56:12,819 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:56:12,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 12:56:12,820 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:56:12,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:56:12,820 INFO L82 PathProgramCache]: Analyzing trace with hash -681701369, now seen corresponding path program 1 times [2020-10-28 12:56:12,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:56:12,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [78172418] [2020-10-28 12:56:12,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:56:12,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:12,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:13,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:13,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:13,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:17,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:17,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 681 [2020-10-28 12:56:17,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:56:17,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-28 12:56:17,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:17,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:17,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:17,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 119 [2020-10-28 12:56:17,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 162 [2020-10-28 12:56:17,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:18,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:56:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:18,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:18,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:18,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:56:18,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:18,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:56:18,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:18,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:18,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:18,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:18,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:18,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:18,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:56:18,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:18,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:18,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:18,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:56:18,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:18,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-28 12:56:18,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:18,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:18,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:56:18,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:18,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-28 12:56:18,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:18,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-28 12:56:18,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:18,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:18,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:18,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:56:18,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:18,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-28 12:56:18,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:18,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:18,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:18,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:56:18,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-28 12:56:18,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:18,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2020-10-28 12:56:18,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:18,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:18,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:18,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:56:18,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:18,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:56:18,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:18,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:18,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:18,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-28 12:56:18,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:18,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:18,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-28 12:56:18,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:18,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:18,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:18,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:56:18,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:18,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-28 12:56:18,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:18,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:18,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:18,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:56:18,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:18,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:18,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 531 [2020-10-28 12:56:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:18,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:18,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:18,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-28 12:56:18,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:18,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:56:18,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:18,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:18,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:18,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-28 12:56:18,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:18,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:19,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 293 proven. 323 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2020-10-28 12:56:19,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [78172418] [2020-10-28 12:56:19,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:56:19,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:56:19,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167914917] [2020-10-28 12:56:19,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:56:19,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:56:19,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:56:19,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:56:19,003 INFO L87 Difference]: Start difference. First operand 3919 states and 4400 transitions. Second operand 7 states. [2020-10-28 12:56:21,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:56:21,055 INFO L93 Difference]: Finished difference Result 8210 states and 9336 transitions. [2020-10-28 12:56:21,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 12:56:21,060 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 661 [2020-10-28 12:56:21,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:56:21,083 INFO L225 Difference]: With dead ends: 8210 [2020-10-28 12:56:21,083 INFO L226 Difference]: Without dead ends: 4663 [2020-10-28 12:56:21,092 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-28 12:56:21,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4663 states. [2020-10-28 12:56:21,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4663 to 4477. [2020-10-28 12:56:21,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4477 states. [2020-10-28 12:56:21,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4477 states to 4477 states and 5018 transitions. [2020-10-28 12:56:21,258 INFO L78 Accepts]: Start accepts. Automaton has 4477 states and 5018 transitions. Word has length 661 [2020-10-28 12:56:21,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:56:21,258 INFO L481 AbstractCegarLoop]: Abstraction has 4477 states and 5018 transitions. [2020-10-28 12:56:21,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:56:21,258 INFO L276 IsEmpty]: Start isEmpty. Operand 4477 states and 5018 transitions. [2020-10-28 12:56:21,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 814 [2020-10-28 12:56:21,269 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:56:21,270 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:56:21,270 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 12:56:21,270 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:56:21,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:56:21,271 INFO L82 PathProgramCache]: Analyzing trace with hash 527435684, now seen corresponding path program 1 times [2020-10-28 12:56:21,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:56:21,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1393633154] [2020-10-28 12:56:21,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:56:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:21,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:21,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:21,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:23,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:26,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:26,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 835 [2020-10-28 12:56:26,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:56:26,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-28 12:56:26,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:26,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:26,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:26,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 255 [2020-10-28 12:56:26,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:56:26,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:26,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:56:26,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:26,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:26,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:26,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:56:26,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:26,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:56:26,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:26,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:26,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:26,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:26,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:26,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:26,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:56:26,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:26,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:26,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:26,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:56:26,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:26,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:56:26,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:26,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:26,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:26,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:26,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:26,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:26,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:56:26,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:26,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:26,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:26,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 12:56:26,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:26,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-28 12:56:26,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:26,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:26,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:56:26,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:26,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-28 12:56:26,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:26,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2020-10-28 12:56:26,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:26,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:26,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:26,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:56:26,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:26,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-28 12:56:26,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:26,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:26,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:26,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:56:26,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-28 12:56:26,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:27,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2020-10-28 12:56:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:27,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:27,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:27,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:56:27,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:27,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:56:27,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:27,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:27,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:27,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-28 12:56:27,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:27,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:27,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-28 12:56:27,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:27,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:27,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:27,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:56:27,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:27,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-28 12:56:27,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:27,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:27,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:27,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:56:27,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:27,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:27,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 683 [2020-10-28 12:56:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:27,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:27,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:27,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-28 12:56:27,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:27,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 12:56:27,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:27,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:27,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:27,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-28 12:56:27,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:27,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:27,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1743 backedges. 476 proven. 341 refuted. 0 times theorem prover too weak. 926 trivial. 0 not checked. [2020-10-28 12:56:27,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1393633154] [2020-10-28 12:56:27,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:56:27,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:56:27,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936884297] [2020-10-28 12:56:27,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:56:27,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:56:27,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:56:27,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:56:27,833 INFO L87 Difference]: Start difference. First operand 4477 states and 5018 transitions. Second operand 7 states. [2020-10-28 12:56:30,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:56:30,265 INFO L93 Difference]: Finished difference Result 8956 states and 10068 transitions. [2020-10-28 12:56:30,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:56:30,266 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 813 [2020-10-28 12:56:30,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:56:30,287 INFO L225 Difference]: With dead ends: 8956 [2020-10-28 12:56:30,287 INFO L226 Difference]: Without dead ends: 4657 [2020-10-28 12:56:30,297 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-28 12:56:30,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4657 states. [2020-10-28 12:56:30,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4657 to 4473. [2020-10-28 12:56:30,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4473 states. [2020-10-28 12:56:30,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4473 states to 4473 states and 4957 transitions. [2020-10-28 12:56:30,421 INFO L78 Accepts]: Start accepts. Automaton has 4473 states and 4957 transitions. Word has length 813 [2020-10-28 12:56:30,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:56:30,422 INFO L481 AbstractCegarLoop]: Abstraction has 4473 states and 4957 transitions. [2020-10-28 12:56:30,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:56:30,422 INFO L276 IsEmpty]: Start isEmpty. Operand 4473 states and 4957 transitions. [2020-10-28 12:56:30,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 889 [2020-10-28 12:56:30,434 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:56:30,435 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:56:30,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 12:56:30,435 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:56:30,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:56:30,436 INFO L82 PathProgramCache]: Analyzing trace with hash -40648591, now seen corresponding path program 1 times [2020-10-28 12:56:30,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:56:30,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1412809901] [2020-10-28 12:56:30,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:56:30,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:30,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:31,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:31,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:33,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:35,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:35,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 912 [2020-10-28 12:56:35,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:56:35,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5145 [2020-10-28 12:56:35,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:35,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:35,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:35,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 770 [2020-10-28 12:56:35,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-28 12:56:35,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:35,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:56:35,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:35,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:35,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:35,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:56:35,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:35,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:56:35,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:35,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:35,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:35,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:35,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:35,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:35,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:56:35,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:35,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:35,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:35,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:56:35,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:35,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:56:35,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:35,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:35,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:35,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:35,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:35,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:36,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:56:36,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:36,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:36,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:36,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:56:36,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:36,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:56:36,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:36,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:36,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:36,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:36,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:36,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:56:36,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:56:36,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:36,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:36,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:36,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:56:36,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:36,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:56:36,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:36,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:36,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:36,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:36,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:36,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:36,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:56:36,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:36,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:36,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:36,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:56:36,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:36,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 12:56:36,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:36,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:36,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:36,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:36,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:36,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:36,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-28 12:56:36,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:36,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:36,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:36,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:56:36,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:36,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:56:36,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:36,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:36,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:36,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:36,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:36,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:36,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-10-28 12:56:36,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:36,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:36,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:36,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:56:36,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:36,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-28 12:56:36,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:36,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:36,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:56:36,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:36,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-28 12:56:36,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:36,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 758 [2020-10-28 12:56:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:36,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:36,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:36,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-28 12:56:36,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:36,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-28 12:56:36,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:36,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:36,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:36,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:56:36,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-28 12:56:36,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:37,037 INFO L134 CoverageAnalysis]: Checked inductivity of 2335 backedges. 803 proven. 2 refuted. 0 times theorem prover too weak. 1530 trivial. 0 not checked. [2020-10-28 12:56:37,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1412809901] [2020-10-28 12:56:37,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:56:37,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:56:37,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473558975] [2020-10-28 12:56:37,038 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:56:37,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:56:37,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:56:37,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:56:37,039 INFO L87 Difference]: Start difference. First operand 4473 states and 4957 transitions. Second operand 7 states. [2020-10-28 12:56:39,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:56:39,525 INFO L93 Difference]: Finished difference Result 9676 states and 10833 transitions. [2020-10-28 12:56:39,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 12:56:39,527 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 888 [2020-10-28 12:56:39,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:56:39,550 INFO L225 Difference]: With dead ends: 9676 [2020-10-28 12:56:39,550 INFO L226 Difference]: Without dead ends: 5575 [2020-10-28 12:56:39,561 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-28 12:56:39,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5575 states. [2020-10-28 12:56:39,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5575 to 5029. [2020-10-28 12:56:39,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5029 states. [2020-10-28 12:56:39,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5029 states to 5029 states and 5487 transitions. [2020-10-28 12:56:39,715 INFO L78 Accepts]: Start accepts. Automaton has 5029 states and 5487 transitions. Word has length 888 [2020-10-28 12:56:39,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:56:39,716 INFO L481 AbstractCegarLoop]: Abstraction has 5029 states and 5487 transitions. [2020-10-28 12:56:39,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:56:39,716 INFO L276 IsEmpty]: Start isEmpty. Operand 5029 states and 5487 transitions. [2020-10-28 12:56:39,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 906 [2020-10-28 12:56:39,729 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:56:39,730 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:56:39,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 12:56:39,730 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:56:39,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:56:39,731 INFO L82 PathProgramCache]: Analyzing trace with hash -534435497, now seen corresponding path program 1 times [2020-10-28 12:56:39,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:56:39,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1436789166] [2020-10-28 12:56:39,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:56:39,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:40,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:40,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:40,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:41,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:44,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:45,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:45,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 929 [2020-10-28 12:56:45,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:56:45,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5180 [2020-10-28 12:56:45,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:45,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:45,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:45,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 343 [2020-10-28 12:56:45,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:56:45,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:45,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:56:45,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:45,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:45,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:45,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:56:45,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:45,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:56:45,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:45,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:45,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:45,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:45,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:45,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:45,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:56:45,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:45,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:45,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:45,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:56:45,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:45,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:56:45,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:45,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:45,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:45,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:45,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:45,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:45,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:56:45,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:45,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:45,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:45,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:56:45,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:45,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:56:45,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:45,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:45,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:45,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:45,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:45,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:45,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:56:45,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:45,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:45,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:45,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:56:45,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:45,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-28 12:56:45,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:45,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:45,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:56:45,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:45,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-28 12:56:45,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:45,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-28 12:56:45,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:45,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:45,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:45,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:56:45,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:45,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-10-28 12:56:45,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:45,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:45,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:45,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:56:45,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-28 12:56:45,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:45,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2020-10-28 12:56:45,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:45,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:45,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:45,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:56:45,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:45,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:56:45,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:45,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:45,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:45,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-28 12:56:45,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:45,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:45,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 590 [2020-10-28 12:56:46,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:46,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:46,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:46,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:56:46,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:46,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-28 12:56:46,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:46,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:46,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:46,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:56:46,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:46,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:46,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 769 [2020-10-28 12:56:46,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:46,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:46,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:46,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-28 12:56:46,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:46,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-28 12:56:46,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:46,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:46,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:46,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 99 [2020-10-28 12:56:46,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:46,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:46,813 INFO L134 CoverageAnalysis]: Checked inductivity of 2369 backedges. 611 proven. 347 refuted. 0 times theorem prover too weak. 1411 trivial. 0 not checked. [2020-10-28 12:56:46,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1436789166] [2020-10-28 12:56:46,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:56:46,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:56:46,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083460677] [2020-10-28 12:56:46,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:56:46,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:56:46,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:56:46,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:56:46,815 INFO L87 Difference]: Start difference. First operand 5029 states and 5487 transitions. Second operand 7 states. [2020-10-28 12:56:48,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:56:48,675 INFO L93 Difference]: Finished difference Result 10416 states and 11402 transitions. [2020-10-28 12:56:48,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:56:48,676 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 905 [2020-10-28 12:56:48,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:56:48,697 INFO L225 Difference]: With dead ends: 10416 [2020-10-28 12:56:48,697 INFO L226 Difference]: Without dead ends: 5759 [2020-10-28 12:56:48,708 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:56:48,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5759 states. [2020-10-28 12:56:48,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5759 to 5393. [2020-10-28 12:56:48,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5393 states. [2020-10-28 12:56:48,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5393 states to 5393 states and 5879 transitions. [2020-10-28 12:56:48,826 INFO L78 Accepts]: Start accepts. Automaton has 5393 states and 5879 transitions. Word has length 905 [2020-10-28 12:56:48,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:56:48,826 INFO L481 AbstractCegarLoop]: Abstraction has 5393 states and 5879 transitions. [2020-10-28 12:56:48,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:56:48,827 INFO L276 IsEmpty]: Start isEmpty. Operand 5393 states and 5879 transitions. [2020-10-28 12:56:48,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 986 [2020-10-28 12:56:48,842 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:56:48,843 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:56:48,843 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 12:56:48,843 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:56:48,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:56:48,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1399250974, now seen corresponding path program 1 times [2020-10-28 12:56:48,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:56:48,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [803783615] [2020-10-28 12:56:48,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:56:48,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:49,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:49,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:49,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:51,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:51,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:53,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:53,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:53,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1011 [2020-10-28 12:56:53,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 12:56:53,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-28 12:56:53,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:53,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:53,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:53,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-28 12:56:53,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:56:53,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:54,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:56:54,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:54,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:54,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:54,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:56:54,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:54,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 12:56:54,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:54,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:54,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:54,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:54,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:54,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:54,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:56:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:54,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:54,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:54,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:56:54,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:54,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:56:54,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:54,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:54,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:54,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:54,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:54,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:54,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:56:54,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:54,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:54,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:54,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:56:54,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:54,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:56:54,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:54,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:54,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:54,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:54,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:54,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:54,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:56:54,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:54,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:54,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:54,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:56:54,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:54,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-28 12:56:54,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:54,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:54,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:56:54,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:54,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-28 12:56:54,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:54,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:56:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:54,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:54,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:54,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:56:54,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:54,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-28 12:56:54,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:54,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:54,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:54,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:56:54,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-28 12:56:54,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:54,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-10-28 12:56:54,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:54,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:54,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:54,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:56:54,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:54,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:56:54,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:54,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:54,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:54,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-28 12:56:54,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:54,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:54,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2020-10-28 12:56:54,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:54,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:54,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:54,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:56:54,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:54,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-28 12:56:54,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:54,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:54,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:54,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:56:54,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:54,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:54,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 776 [2020-10-28 12:56:54,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:54,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:54,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:54,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 12:56:54,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:54,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:56:54,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:54,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:54,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:54,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-28 12:56:54,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:54,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:54,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 855 [2020-10-28 12:56:54,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:54,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:54,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:54,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-28 12:56:54,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:54,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:56:54,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:54,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:54,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:54,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-28 12:56:54,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:54,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:55,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2938 backedges. 665 proven. 417 refuted. 0 times theorem prover too weak. 1856 trivial. 0 not checked. [2020-10-28 12:56:55,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [803783615] [2020-10-28 12:56:55,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:56:55,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:56:55,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757327364] [2020-10-28 12:56:55,695 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:56:55,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:56:55,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:56:55,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:56:55,696 INFO L87 Difference]: Start difference. First operand 5393 states and 5879 transitions. Second operand 7 states. [2020-10-28 12:56:57,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:56:57,743 INFO L93 Difference]: Finished difference Result 11694 states and 12865 transitions. [2020-10-28 12:56:57,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:56:57,743 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 985 [2020-10-28 12:56:57,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:56:57,761 INFO L225 Difference]: With dead ends: 11694 [2020-10-28 12:56:57,761 INFO L226 Difference]: Without dead ends: 6491 [2020-10-28 12:56:57,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-28 12:56:57,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6491 states. [2020-10-28 12:56:57,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6491 to 5579. [2020-10-28 12:56:57,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5579 states. [2020-10-28 12:56:57,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5579 states to 5579 states and 6075 transitions. [2020-10-28 12:56:57,894 INFO L78 Accepts]: Start accepts. Automaton has 5579 states and 6075 transitions. Word has length 985 [2020-10-28 12:56:57,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:56:57,894 INFO L481 AbstractCegarLoop]: Abstraction has 5579 states and 6075 transitions. [2020-10-28 12:56:57,895 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:56:57,895 INFO L276 IsEmpty]: Start isEmpty. Operand 5579 states and 6075 transitions. [2020-10-28 12:56:57,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1072 [2020-10-28 12:56:57,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:56:57,914 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:56:57,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 12:56:57,914 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:56:57,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:56:57,915 INFO L82 PathProgramCache]: Analyzing trace with hash 457697050, now seen corresponding path program 1 times [2020-10-28 12:56:57,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:56:57,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1874323768] [2020-10-28 12:56:57,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:56:58,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:58,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:58,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:58,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:03,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:03,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1097 [2020-10-28 12:57:03,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:57:03,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-28 12:57:03,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:03,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:03,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:57:03,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 686 [2020-10-28 12:57:03,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:57:03,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:03,422 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-28 12:57:03,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:57:03,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:03,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:03,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:03,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:57:03,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:03,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:57:03,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:03,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:03,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:03,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:03,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:03,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:03,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:57:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:03,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:03,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:03,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:57:03,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:03,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:57:03,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:03,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:03,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:03,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:03,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:03,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:03,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:57:03,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:03,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:03,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:03,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:57:03,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:03,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:57:03,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:03,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:03,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:03,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:03,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:03,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:03,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:57:03,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:03,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:03,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:03,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:57:03,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:03,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 12:57:03,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:03,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:03,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:03,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:03,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:03,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:03,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:57:03,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:03,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:03,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:03,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:57:03,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:03,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 12:57:03,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:03,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:03,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:03,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:03,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:03,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:03,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-28 12:57:03,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:03,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:03,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:03,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-28 12:57:03,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:03,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-28 12:57:03,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:03,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:03,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:57:03,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:03,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-28 12:57:03,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:03,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 676 [2020-10-28 12:57:03,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:03,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:04,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:04,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:57:04,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:04,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-28 12:57:04,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:04,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:04,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:57:04,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:57:04,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:57:04,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:04,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 855 [2020-10-28 12:57:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:04,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:04,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:04,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:57:04,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:04,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 12:57:04,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:04,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:04,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:04,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-28 12:57:04,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:04,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:04,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 941 [2020-10-28 12:57:04,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:04,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:04,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:04,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-28 12:57:04,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:04,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:57:04,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:04,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:04,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:04,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-28 12:57:04,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:04,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:05,012 INFO L134 CoverageAnalysis]: Checked inductivity of 3279 backedges. 993 proven. 177 refuted. 0 times theorem prover too weak. 2109 trivial. 0 not checked. [2020-10-28 12:57:05,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1874323768] [2020-10-28 12:57:05,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:57:05,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:57:05,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790423119] [2020-10-28 12:57:05,029 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:57:05,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:57:05,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:57:05,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:57:05,030 INFO L87 Difference]: Start difference. First operand 5579 states and 6075 transitions. Second operand 7 states. [2020-10-28 12:57:07,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:57:07,346 INFO L93 Difference]: Finished difference Result 10984 states and 11968 transitions. [2020-10-28 12:57:07,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:57:07,352 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1071 [2020-10-28 12:57:07,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:57:07,367 INFO L225 Difference]: With dead ends: 10984 [2020-10-28 12:57:07,367 INFO L226 Difference]: Without dead ends: 5595 [2020-10-28 12:57:07,378 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:57:07,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5595 states. [2020-10-28 12:57:07,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5595 to 5043. [2020-10-28 12:57:07,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5043 states. [2020-10-28 12:57:07,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5043 states to 5043 states and 5364 transitions. [2020-10-28 12:57:07,487 INFO L78 Accepts]: Start accepts. Automaton has 5043 states and 5364 transitions. Word has length 1071 [2020-10-28 12:57:07,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:57:07,488 INFO L481 AbstractCegarLoop]: Abstraction has 5043 states and 5364 transitions. [2020-10-28 12:57:07,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:57:07,488 INFO L276 IsEmpty]: Start isEmpty. Operand 5043 states and 5364 transitions. [2020-10-28 12:57:07,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1091 [2020-10-28 12:57:07,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:57:07,507 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:57:07,508 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 12:57:07,508 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:57:07,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:57:07,509 INFO L82 PathProgramCache]: Analyzing trace with hash -1127113401, now seen corresponding path program 1 times [2020-10-28 12:57:07,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:57:07,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1507962108] [2020-10-28 12:57:07,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:57:07,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:07,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:08,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:10,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:12,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:12,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1118 [2020-10-28 12:57:12,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:57:12,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5070 [2020-10-28 12:57:12,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:12,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:12,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:57:12,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 952 [2020-10-28 12:57:12,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-28 12:57:12,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:12,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:57:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:12,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:12,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:12,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:57:12,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:12,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:57:12,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:12,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:12,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:12,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:12,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:12,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:12,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:57:12,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:12,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:13,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:13,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:57:13,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:13,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:57:13,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:13,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:13,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:13,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:13,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:13,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:13,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:57:13,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:13,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:13,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:13,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:57:13,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:13,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:57:13,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:13,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:13,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:13,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:13,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:13,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:13,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:57:13,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:13,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:13,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:13,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:57:13,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:13,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:57:13,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:13,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:13,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:13,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:13,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:13,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:13,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:57:13,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:13,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:13,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:13,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:57:13,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:13,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:57:13,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:13,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:13,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:13,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:13,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:13,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:13,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:57:13,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:13,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:13,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:13,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:57:13,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:13,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 12:57:13,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:13,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:13,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:13,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:13,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:13,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:13,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:57:13,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:13,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:13,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:13,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:57:13,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:13,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 12:57:13,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:13,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:13,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:13,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:13,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:13,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:13,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:57:13,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:13,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:13,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:13,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:57:13,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:13,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:57:13,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:13,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:13,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:13,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:13,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:13,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:13,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:57:13,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:13,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:13,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:13,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 12:57:13,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:13,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 12:57:13,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:13,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:13,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:57:13,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:13,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:57:13,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 12:57:13,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 936 [2020-10-28 12:57:13,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:13,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:13,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:13,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 12:57:13,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:13,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-28 12:57:13,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:13,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:13,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:57:13,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:57:13,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-28 12:57:13,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:14,752 INFO L134 CoverageAnalysis]: Checked inductivity of 3713 backedges. 1136 proven. 2 refuted. 0 times theorem prover too weak. 2575 trivial. 0 not checked. [2020-10-28 12:57:14,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1507962108] [2020-10-28 12:57:14,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:57:14,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:57:14,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097617118] [2020-10-28 12:57:14,754 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:57:14,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:57:14,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:57:14,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:57:14,755 INFO L87 Difference]: Start difference. First operand 5043 states and 5364 transitions. Second operand 7 states. [2020-10-28 12:57:17,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:57:17,056 INFO L93 Difference]: Finished difference Result 10076 states and 10729 transitions. [2020-10-28 12:57:17,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:57:17,057 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1090 [2020-10-28 12:57:17,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:57:17,091 INFO L225 Difference]: With dead ends: 10076 [2020-10-28 12:57:17,091 INFO L226 Difference]: Without dead ends: 5223 [2020-10-28 12:57:17,102 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:57:17,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5223 states. [2020-10-28 12:57:17,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5223 to 5221. [2020-10-28 12:57:17,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5221 states. [2020-10-28 12:57:17,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 5519 transitions. [2020-10-28 12:57:17,220 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 5519 transitions. Word has length 1090 [2020-10-28 12:57:17,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:57:17,221 INFO L481 AbstractCegarLoop]: Abstraction has 5221 states and 5519 transitions. [2020-10-28 12:57:17,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:57:17,221 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 5519 transitions. [2020-10-28 12:57:17,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1139 [2020-10-28 12:57:17,245 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:57:17,246 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:57:17,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 12:57:17,246 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:57:17,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:57:17,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1256007449, now seen corresponding path program 1 times [2020-10-28 12:57:17,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:57:17,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [587435950] [2020-10-28 12:57:17,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:57:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:17,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:18,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:22,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:22,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:22,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1166 [2020-10-28 12:57:22,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:57:22,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-28 12:57:22,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:22,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:22,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 12:57:22,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-28 12:57:22,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 311 [2020-10-28 12:57:22,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:22,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:57:22,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:22,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:22,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:22,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:57:22,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:22,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:57:22,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:22,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:22,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:22,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:22,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:22,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:22,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:57:22,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:22,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:22,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:22,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:57:22,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:22,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:57:22,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:22,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:22,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:22,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:22,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:22,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:22,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:57:22,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:22,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:22,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:22,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:57:22,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:22,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:57:22,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:22,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:22,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:22,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:22,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:22,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:22,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:57:22,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:22,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:22,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:22,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:57:22,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:22,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 12:57:22,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:22,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:22,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:22,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:22,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:22,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:22,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:57:22,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:22,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:22,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:22,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:57:22,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:22,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 12:57:22,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:22,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:22,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:22,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:22,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:22,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 12:57:22,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:57:22,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:22,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:22,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:22,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:57:22,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:22,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 12:57:22,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:22,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:22,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:22,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:22,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:22,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:22,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:57:23,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:23,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:23,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:23,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:57:23,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:23,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 12:57:23,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:23,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:23,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:57:23,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:23,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 12:57:23,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:23,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:57:23,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:23,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:23,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:23,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:57:23,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:23,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 293 [2020-10-28 12:57:23,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:23,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:23,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 12:57:23,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:57:23,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:57:23,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:23,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:57:23,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:23,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:23,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:23,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-28 12:57:23,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:23,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-28 12:57:23,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:23,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:23,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:57:23,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:57:23,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-28 12:57:23,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:23,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 984 [2020-10-28 12:57:23,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:23,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:23,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:23,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 12:57:23,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:23,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-28 12:57:23,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:23,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:23,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:23,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-28 12:57:23,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:23,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:24,663 INFO L134 CoverageAnalysis]: Checked inductivity of 3950 backedges. 1756 proven. 236 refuted. 0 times theorem prover too weak. 1958 trivial. 0 not checked. [2020-10-28 12:57:24,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [587435950] [2020-10-28 12:57:24,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:57:24,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-28 12:57:24,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099864107] [2020-10-28 12:57:24,665 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 12:57:24,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:57:24,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 12:57:24,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-28 12:57:24,666 INFO L87 Difference]: Start difference. First operand 5221 states and 5519 transitions. Second operand 10 states. [2020-10-28 12:57:28,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:57:28,633 INFO L93 Difference]: Finished difference Result 11360 states and 12041 transitions. [2020-10-28 12:57:28,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 12:57:28,638 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1138 [2020-10-28 12:57:28,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:57:28,656 INFO L225 Difference]: With dead ends: 11360 [2020-10-28 12:57:28,656 INFO L226 Difference]: Without dead ends: 6329 [2020-10-28 12:57:28,666 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2020-10-28 12:57:28,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6329 states. [2020-10-28 12:57:28,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6329 to 5591. [2020-10-28 12:57:28,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5591 states. [2020-10-28 12:57:28,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5591 states to 5591 states and 5898 transitions. [2020-10-28 12:57:28,783 INFO L78 Accepts]: Start accepts. Automaton has 5591 states and 5898 transitions. Word has length 1138 [2020-10-28 12:57:28,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:57:28,784 INFO L481 AbstractCegarLoop]: Abstraction has 5591 states and 5898 transitions. [2020-10-28 12:57:28,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 12:57:28,785 INFO L276 IsEmpty]: Start isEmpty. Operand 5591 states and 5898 transitions. [2020-10-28 12:57:28,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1387 [2020-10-28 12:57:28,812 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:57:28,813 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:57:28,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-28 12:57:28,813 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:57:28,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:57:28,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1145391567, now seen corresponding path program 1 times [2020-10-28 12:57:28,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:57:28,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2066539699] [2020-10-28 12:57:28,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:57:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:29,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:29,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:29,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:34,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:34,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1418 [2020-10-28 12:57:34,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:57:34,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-28 12:57:34,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:34,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:34,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:57:34,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 991 [2020-10-28 12:57:34,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-28 12:57:34,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:34,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:57:34,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:34,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:34,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:34,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:57:34,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:34,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:57:34,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:34,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:34,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:34,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:34,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:34,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:34,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:57:34,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:34,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:34,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:34,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:57:34,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:34,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:57:34,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:34,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:34,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:34,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:34,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:34,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:34,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:57:34,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:34,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:34,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:34,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:57:34,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:34,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:57:34,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:34,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:34,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:34,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:34,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:34,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:34,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:57:34,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:34,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:34,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:34,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:57:34,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:34,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:57:34,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:34,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:34,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:34,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:34,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:34,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:34,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:57:34,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:34,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:34,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:34,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:57:34,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:34,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:57:34,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:34,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:34,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:34,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:34,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:34,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:34,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:57:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:34,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:34,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:34,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:57:34,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:34,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 12:57:34,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:34,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:34,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:34,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:34,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:34,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:34,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:57:34,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:34,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:34,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:34,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:57:34,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:34,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:57:34,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:34,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:34,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:34,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:34,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:34,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:34,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:57:34,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:34,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:34,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:34,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:57:34,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:34,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-28 12:57:34,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:34,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:34,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:34,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:34,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:34,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:34,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:57:34,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:34,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:34,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:34,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:57:34,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:34,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-28 12:57:34,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:34,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:34,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:57:34,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:34,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-28 12:57:34,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:34,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:57:34,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:34,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:34,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:34,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-28 12:57:34,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:34,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-28 12:57:34,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:34,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:34,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:57:34,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:57:34,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-28 12:57:34,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:35,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1105 [2020-10-28 12:57:35,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:35,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:35,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:35,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-28 12:57:35,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:35,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 12:57:35,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:35,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:35,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:35,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-28 12:57:35,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:35,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:35,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1232 [2020-10-28 12:57:35,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:35,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:35,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:35,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 12:57:35,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:35,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 12:57:35,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:35,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:35,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:35,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-28 12:57:35,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:35,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:36,594 INFO L134 CoverageAnalysis]: Checked inductivity of 6102 backedges. 1331 proven. 242 refuted. 0 times theorem prover too weak. 4529 trivial. 0 not checked. [2020-10-28 12:57:36,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2066539699] [2020-10-28 12:57:36,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:57:36,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:57:36,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475994873] [2020-10-28 12:57:36,596 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:57:36,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:57:36,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:57:36,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:57:36,596 INFO L87 Difference]: Start difference. First operand 5591 states and 5898 transitions. Second operand 7 states. [2020-10-28 12:57:38,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:57:38,989 INFO L93 Difference]: Finished difference Result 11184 states and 11809 transitions. [2020-10-28 12:57:38,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:57:38,990 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1386 [2020-10-28 12:57:38,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:57:39,006 INFO L225 Difference]: With dead ends: 11184 [2020-10-28 12:57:39,006 INFO L226 Difference]: Without dead ends: 5597 [2020-10-28 12:57:39,016 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:57:39,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5597 states. [2020-10-28 12:57:39,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5597 to 5589. [2020-10-28 12:57:39,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5589 states. [2020-10-28 12:57:39,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5589 states to 5589 states and 5880 transitions. [2020-10-28 12:57:39,121 INFO L78 Accepts]: Start accepts. Automaton has 5589 states and 5880 transitions. Word has length 1386 [2020-10-28 12:57:39,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:57:39,122 INFO L481 AbstractCegarLoop]: Abstraction has 5589 states and 5880 transitions. [2020-10-28 12:57:39,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:57:39,123 INFO L276 IsEmpty]: Start isEmpty. Operand 5589 states and 5880 transitions. [2020-10-28 12:57:39,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1692 [2020-10-28 12:57:39,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:57:39,164 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:57:39,164 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-28 12:57:39,164 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:57:39,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:57:39,165 INFO L82 PathProgramCache]: Analyzing trace with hash 2084441721, now seen corresponding path program 1 times [2020-10-28 12:57:39,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:57:39,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1298558194] [2020-10-28 12:57:39,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:57:39,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:39,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:41,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:43,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:43,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1727 [2020-10-28 12:57:43,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:57:43,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4118 [2020-10-28 12:57:43,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:43,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:43,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 12:57:43,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1561 [2020-10-28 12:57:43,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 162 [2020-10-28 12:57:43,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:43,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:57:43,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:43,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:43,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:43,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:57:43,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:43,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:57:43,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:43,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:43,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:43,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:43,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:43,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:43,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:57:43,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:43,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:44,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:44,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:57:44,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:44,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 12:57:44,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:44,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:44,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:44,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:44,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:44,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:44,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:57:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:44,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:44,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:44,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:57:44,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:44,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:57:44,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:44,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:44,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:44,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:44,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:44,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 12:57:44,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:57:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:44,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:44,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:44,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:57:44,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:44,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:57:44,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:44,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:44,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:44,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:44,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:44,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:44,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:57:44,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:44,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:44,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:44,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:57:44,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:44,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:57:44,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:44,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:44,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:44,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:44,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:44,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:44,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:57:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:44,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:44,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:44,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:57:44,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:44,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:57:44,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:44,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:44,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:44,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:44,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:44,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:44,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:57:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:44,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:44,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:44,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:57:44,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:44,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:57:44,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:44,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:44,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:44,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:44,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:44,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:44,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:57:44,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:44,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:44,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:44,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:57:44,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:44,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:57:44,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:44,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:44,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:44,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:44,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:44,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:44,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:57:44,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:44,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:44,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:44,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:57:44,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:44,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 12:57:44,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:44,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:44,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:44,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:44,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:44,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:44,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:57:44,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:44,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:44,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:44,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:57:44,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:44,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:57:44,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:44,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:44,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:44,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:44,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:44,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:44,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:57:44,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:44,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:44,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:44,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:57:44,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:44,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:57:44,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:44,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:44,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:44,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:44,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:44,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:44,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:57:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:44,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:44,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:44,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-28 12:57:44,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:44,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:57:44,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:44,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:44,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:44,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:44,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:44,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:44,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-28 12:57:44,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:44,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:44,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:44,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-28 12:57:44,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:44,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-28 12:57:44,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:44,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:44,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:57:44,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:44,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-28 12:57:44,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:44,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-28 12:57:44,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:44,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:44,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:44,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 12:57:44,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:44,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-28 12:57:44,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:44,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:44,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 12:57:44,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:57:44,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-28 12:57:44,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:46,724 INFO L134 CoverageAnalysis]: Checked inductivity of 8825 backedges. 1749 proven. 46 refuted. 0 times theorem prover too weak. 7030 trivial. 0 not checked. [2020-10-28 12:57:46,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1298558194] [2020-10-28 12:57:46,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:57:46,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:57:46,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837365969] [2020-10-28 12:57:46,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:57:46,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:57:46,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:57:46,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:57:46,726 INFO L87 Difference]: Start difference. First operand 5589 states and 5880 transitions. Second operand 8 states. [2020-10-28 12:57:50,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:57:50,476 INFO L93 Difference]: Finished difference Result 11908 states and 12530 transitions. [2020-10-28 12:57:50,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 12:57:50,477 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1691 [2020-10-28 12:57:50,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:57:50,498 INFO L225 Difference]: With dead ends: 11908 [2020-10-28 12:57:50,499 INFO L226 Difference]: Without dead ends: 6509 [2020-10-28 12:57:50,509 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-28 12:57:50,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6509 states. [2020-10-28 12:57:50,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6509 to 5591. [2020-10-28 12:57:50,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5591 states. [2020-10-28 12:57:50,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5591 states to 5591 states and 5881 transitions. [2020-10-28 12:57:50,625 INFO L78 Accepts]: Start accepts. Automaton has 5591 states and 5881 transitions. Word has length 1691 [2020-10-28 12:57:50,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:57:50,627 INFO L481 AbstractCegarLoop]: Abstraction has 5591 states and 5881 transitions. [2020-10-28 12:57:50,627 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:57:50,627 INFO L276 IsEmpty]: Start isEmpty. Operand 5591 states and 5881 transitions. [2020-10-28 12:57:50,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1762 [2020-10-28 12:57:50,665 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:57:50,666 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:57:50,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-28 12:57:50,667 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:57:50,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:57:50,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1231977711, now seen corresponding path program 1 times [2020-10-28 12:57:50,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:57:50,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1735584948] [2020-10-28 12:57:50,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:57:50,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:51,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:51,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:53,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:55,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:56,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:56,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1797 [2020-10-28 12:57:56,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:57:56,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5073 [2020-10-28 12:57:56,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:56,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:56,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:57:56,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-28 12:57:56,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 317 [2020-10-28 12:57:56,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:56,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:57:56,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:56,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:56,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:56,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:57:56,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:56,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:57:56,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:56,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:56,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:56,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:56,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:56,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:56,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:57:56,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:56,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:56,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:56,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:57:56,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:56,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:57:56,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:56,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:56,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:56,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:56,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:56,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:56,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:57:56,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:56,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:56,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:56,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:57:56,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:56,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:57:56,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:56,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:56,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:56,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:56,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:56,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:56,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:57:56,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:56,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:56,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:56,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:57:56,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:56,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:57:56,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:56,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:56,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:56,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:56,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:56,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:56,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:57:56,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:56,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:56,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:56,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:57:56,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:56,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:57:56,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:56,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:56,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:56,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:56,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:56,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:56,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:57:56,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:56,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:56,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:56,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:57:56,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:56,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 12:57:56,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:56,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:56,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:56,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:56,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:56,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:56,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:57:56,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:56,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:56,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:56,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:57:56,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:56,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 12:57:56,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:56,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:56,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:56,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:56,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:56,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:56,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:57:56,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:56,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:56,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:56,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:57:56,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:56,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 12:57:56,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:56,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:56,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:56,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:56,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:56,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:56,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:57:56,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:56,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:56,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:56,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:57:56,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:56,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 12:57:56,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:56,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:56,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:56,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:56,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:56,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:56,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:57:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:56,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:56,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:56,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:57:56,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:56,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-28 12:57:56,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:56,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:56,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:57:56,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:56,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-28 12:57:56,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:56,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:57:56,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:56,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:57,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:57,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:57:57,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:57,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-28 12:57:57,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:57,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:57,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:57:57,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:57:57,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-28 12:57:57,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:57,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:57:57,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:57,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:57,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:57,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-28 12:57:57,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:57,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-28 12:57:57,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:57,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:57,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:57:57,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:57:57,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-28 12:57:57,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:57,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1427 [2020-10-28 12:57:57,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:57,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:57,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:57,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-28 12:57:57,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:57,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-28 12:57:57,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:57,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:57,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:57,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 178 [2020-10-28 12:57:57,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:57,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:57:57,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1607 [2020-10-28 12:57:57,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:57,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:57,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:57,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 12:57:57,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:57,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-28 12:57:57,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:57,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:57,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:57,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-28 12:57:57,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:57,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:59,759 INFO L134 CoverageAnalysis]: Checked inductivity of 9093 backedges. 2645 proven. 538 refuted. 0 times theorem prover too weak. 5910 trivial. 0 not checked. [2020-10-28 12:57:59,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1735584948] [2020-10-28 12:57:59,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:57:59,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:57:59,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68955629] [2020-10-28 12:57:59,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:57:59,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:57:59,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:57:59,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:57:59,765 INFO L87 Difference]: Start difference. First operand 5591 states and 5881 transitions. Second operand 7 states. [2020-10-28 12:58:03,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:58:03,335 INFO L93 Difference]: Finished difference Result 12094 states and 12718 transitions. [2020-10-28 12:58:03,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:58:03,339 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1761 [2020-10-28 12:58:03,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:58:03,356 INFO L225 Difference]: With dead ends: 12094 [2020-10-28 12:58:03,356 INFO L226 Difference]: Without dead ends: 6509 [2020-10-28 12:58:03,364 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:58:03,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6509 states. [2020-10-28 12:58:03,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6509 to 5771. [2020-10-28 12:58:03,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5771 states. [2020-10-28 12:58:03,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5771 states to 5771 states and 6024 transitions. [2020-10-28 12:58:03,475 INFO L78 Accepts]: Start accepts. Automaton has 5771 states and 6024 transitions. Word has length 1761 [2020-10-28 12:58:03,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:58:03,477 INFO L481 AbstractCegarLoop]: Abstraction has 5771 states and 6024 transitions. [2020-10-28 12:58:03,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:58:03,477 INFO L276 IsEmpty]: Start isEmpty. Operand 5771 states and 6024 transitions. [2020-10-28 12:58:03,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1922 [2020-10-28 12:58:03,521 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:58:03,522 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:58:03,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-28 12:58:03,523 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:58:03,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:58:03,524 INFO L82 PathProgramCache]: Analyzing trace with hash -1127095752, now seen corresponding path program 1 times [2020-10-28 12:58:03,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:58:03,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [642570331] [2020-10-28 12:58:03,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:58:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:04,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:05,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:05,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:08,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:08,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1959 [2020-10-28 12:58:08,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:58:08,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5102 [2020-10-28 12:58:08,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:08,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:08,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:58:08,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1430 [2020-10-28 12:58:08,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:58:08,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:58:09,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:58:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:09,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:09,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:09,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:58:09,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:09,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:58:09,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:09,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:09,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:09,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:09,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:09,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:58:09,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:58:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:09,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:09,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:09,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:58:09,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:09,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 12:58:09,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:09,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:09,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:09,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:09,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:09,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:09,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:58:09,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:09,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:09,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:09,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:58:09,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:09,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:58:09,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:09,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:09,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:09,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:09,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:09,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:09,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:58:09,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:09,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:09,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:09,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:58:09,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:09,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:58:09,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:09,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:09,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:09,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:09,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:09,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:09,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:58:09,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:09,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:09,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:09,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:58:09,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:09,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:58:09,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:09,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:09,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:09,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:09,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:09,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:09,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:58:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:09,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:09,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:09,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:58:09,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:09,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-28 12:58:09,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:09,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:09,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:09,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:09,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:09,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:09,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:58:09,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:09,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:09,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:09,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:58:09,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:09,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 12:58:09,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:09,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:09,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:09,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:09,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:09,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:09,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:58:09,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:09,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:09,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:09,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:58:09,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:09,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-28 12:58:09,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:09,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:09,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:09,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:09,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:09,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:09,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:58:09,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:09,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:09,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:09,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:58:09,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:09,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:58:09,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:09,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:09,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:09,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:09,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:09,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:09,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:58:09,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:09,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:09,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:09,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:58:09,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:09,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-28 12:58:09,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:09,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:09,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:09,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:09,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:09,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:10,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:58:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:10,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:10,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:10,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:58:10,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:10,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 12:58:10,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:10,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:10,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:10,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:10,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:10,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:10,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:58:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:10,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:10,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:10,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-28 12:58:10,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:10,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-28 12:58:10,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:10,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:10,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:58:10,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:10,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-28 12:58:10,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:10,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1408 [2020-10-28 12:58:10,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:10,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:10,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:10,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:58:10,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:10,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-28 12:58:10,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:10,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:10,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:58:10,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:58:10,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:58:10,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:10,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1587 [2020-10-28 12:58:10,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:10,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:10,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:10,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-28 12:58:10,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:10,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-10-28 12:58:10,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:10,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:10,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:10,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 178 [2020-10-28 12:58:10,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:10,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:10,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1767 [2020-10-28 12:58:10,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:10,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:11,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:11,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 12:58:11,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:11,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-28 12:58:11,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:11,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:11,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:11,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-28 12:58:11,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:11,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:13,001 INFO L134 CoverageAnalysis]: Checked inductivity of 10707 backedges. 1992 proven. 294 refuted. 0 times theorem prover too weak. 8421 trivial. 0 not checked. [2020-10-28 12:58:13,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [642570331] [2020-10-28 12:58:13,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:58:13,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:58:13,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289765682] [2020-10-28 12:58:13,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:58:13,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:58:13,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:58:13,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:58:13,003 INFO L87 Difference]: Start difference. First operand 5771 states and 6024 transitions. Second operand 7 states. [2020-10-28 12:58:15,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:58:15,242 INFO L93 Difference]: Finished difference Result 12846 states and 13415 transitions. [2020-10-28 12:58:15,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:58:15,244 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1921 [2020-10-28 12:58:15,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:58:15,254 INFO L225 Difference]: With dead ends: 12846 [2020-10-28 12:58:15,254 INFO L226 Difference]: Without dead ends: 4857 [2020-10-28 12:58:15,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:58:15,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4857 states. [2020-10-28 12:58:15,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4857 to 4257. [2020-10-28 12:58:15,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4257 states. [2020-10-28 12:58:15,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4257 states to 4257 states and 4397 transitions. [2020-10-28 12:58:15,348 INFO L78 Accepts]: Start accepts. Automaton has 4257 states and 4397 transitions. Word has length 1921 [2020-10-28 12:58:15,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:58:15,350 INFO L481 AbstractCegarLoop]: Abstraction has 4257 states and 4397 transitions. [2020-10-28 12:58:15,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:58:15,350 INFO L276 IsEmpty]: Start isEmpty. Operand 4257 states and 4397 transitions. [2020-10-28 12:58:15,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1940 [2020-10-28 12:58:15,388 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:58:15,389 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 10, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:58:15,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-28 12:58:15,390 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:58:15,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:58:15,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1440686046, now seen corresponding path program 1 times [2020-10-28 12:58:15,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:58:15,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1438349634] [2020-10-28 12:58:15,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:58:15,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:15,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:16,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:17,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:19,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:20,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:20,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1977 [2020-10-28 12:58:20,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:58:20,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5072 [2020-10-28 12:58:20,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:20,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:20,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:58:20,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1497 [2020-10-28 12:58:20,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-28 12:58:20,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:20,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:58:20,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:20,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:20,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:20,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:58:20,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:20,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:58:20,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:20,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:20,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:20,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:20,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:20,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:21,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:58:21,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:21,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:21,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:21,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:58:21,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:21,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:58:21,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:21,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:21,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:21,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:21,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:21,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:21,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:58:21,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:21,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:21,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:21,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:58:21,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:21,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:58:21,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:21,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:21,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:21,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:21,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:21,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:21,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:58:21,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:21,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:21,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:21,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:58:21,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:21,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:58:21,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:21,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:21,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:21,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:21,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:21,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:21,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:58:21,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:21,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:21,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:21,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:58:21,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:21,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:58:21,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:21,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:21,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:21,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:21,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:21,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:21,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:58:21,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:21,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:21,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:21,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:58:21,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:21,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-28 12:58:21,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:21,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:21,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:21,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:21,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:21,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:21,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:58:21,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:21,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:21,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:21,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:58:21,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:21,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:58:21,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:21,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:21,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:21,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:21,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:21,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:21,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:58:21,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:21,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:21,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:21,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:58:21,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:21,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-28 12:58:21,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:21,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:21,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:21,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:21,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:21,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:21,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:58:21,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:21,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:21,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:21,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:58:21,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:21,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:58:21,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:21,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:21,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:21,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:21,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:21,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:21,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:58:21,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:21,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:21,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:21,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:58:21,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:21,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 12:58:21,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:21,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:21,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:21,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:21,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:21,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:21,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:58:21,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:21,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:21,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:21,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:58:21,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:21,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 12:58:21,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:21,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:21,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:21,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:21,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:21,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:21,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:58:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:21,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:22,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:22,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-28 12:58:22,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:22,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-28 12:58:22,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:22,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:22,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:58:22,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:22,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-28 12:58:22,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:22,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1475 [2020-10-28 12:58:22,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:22,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:22,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:22,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-28 12:58:22,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:22,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-28 12:58:22,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:22,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:22,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:58:22,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:58:22,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-28 12:58:22,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:22,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1605 [2020-10-28 12:58:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:22,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:22,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:22,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-28 12:58:22,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:22,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-28 12:58:22,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:22,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:22,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:22,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 178 [2020-10-28 12:58:22,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:22,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:22,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1785 [2020-10-28 12:58:22,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:22,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:22,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:22,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 12:58:22,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:22,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-28 12:58:22,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:22,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:22,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:22,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-28 12:58:22,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:22,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:24,920 INFO L134 CoverageAnalysis]: Checked inductivity of 10839 backedges. 1856 proven. 245 refuted. 0 times theorem prover too weak. 8738 trivial. 0 not checked. [2020-10-28 12:58:24,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1438349634] [2020-10-28 12:58:24,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:58:24,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:58:24,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242154137] [2020-10-28 12:58:24,922 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:58:24,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:58:24,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:58:24,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:58:24,922 INFO L87 Difference]: Start difference. First operand 4257 states and 4397 transitions. Second operand 7 states. [2020-10-28 12:58:27,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:58:27,250 INFO L93 Difference]: Finished difference Result 8514 states and 8801 transitions. [2020-10-28 12:58:27,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:58:27,253 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1939 [2020-10-28 12:58:27,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:58:27,260 INFO L225 Difference]: With dead ends: 8514 [2020-10-28 12:58:27,261 INFO L226 Difference]: Without dead ends: 4257 [2020-10-28 12:58:27,265 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-28 12:58:27,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4257 states. [2020-10-28 12:58:27,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4257 to 4251. [2020-10-28 12:58:27,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4251 states. [2020-10-28 12:58:27,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4251 states to 4251 states and 4379 transitions. [2020-10-28 12:58:27,343 INFO L78 Accepts]: Start accepts. Automaton has 4251 states and 4379 transitions. Word has length 1939 [2020-10-28 12:58:27,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:58:27,345 INFO L481 AbstractCegarLoop]: Abstraction has 4251 states and 4379 transitions. [2020-10-28 12:58:27,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:58:27,345 INFO L276 IsEmpty]: Start isEmpty. Operand 4251 states and 4379 transitions. [2020-10-28 12:58:27,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1997 [2020-10-28 12:58:27,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:58:27,502 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:58:27,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-28 12:58:27,502 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:58:27,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:58:27,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1060675991, now seen corresponding path program 1 times [2020-10-28 12:58:27,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:58:27,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [78700288] [2020-10-28 12:58:27,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:58:27,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:27,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:29,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:32,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:32,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2036 [2020-10-28 12:58:32,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:58:32,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-28 12:58:32,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:32,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:32,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:58:32,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1870 [2020-10-28 12:58:32,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-28 12:58:32,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:33,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:58:33,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:33,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:33,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:33,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:58:33,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:33,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:58:33,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:33,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:33,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:33,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:33,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:33,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:33,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:58:33,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:33,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:33,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:33,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:58:33,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:33,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:58:33,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:33,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:33,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:33,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:33,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:33,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:33,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:58:33,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:33,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:33,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:33,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:58:33,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:33,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:58:33,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:33,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:33,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:33,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:33,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:33,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:33,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:58:33,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:33,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:33,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:33,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:58:33,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:33,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:58:33,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:33,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:33,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:33,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:33,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:33,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:33,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:58:33,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:33,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:33,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:33,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:58:33,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:33,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 12:58:33,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:33,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:33,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:33,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:33,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:33,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:33,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:58:33,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:33,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:33,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:33,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:58:33,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:33,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:58:33,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:33,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:33,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:33,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:33,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:33,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:33,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:58:33,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:33,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:33,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:33,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:58:33,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:33,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:58:33,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:33,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:33,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:33,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:33,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:33,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:33,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:58:33,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:33,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:33,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:33,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:58:33,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:33,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:58:33,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:33,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:33,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:33,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:33,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:33,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:33,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:58:33,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:33,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:33,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:33,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:58:33,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:33,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:58:33,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:33,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:33,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:33,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:33,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:33,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:33,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:58:33,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:33,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:33,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:33,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:58:33,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:33,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 12:58:33,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:33,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:33,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:33,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:33,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:33,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:33,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:58:33,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:33,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:33,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:33,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:58:33,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:33,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 12:58:33,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:33,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:33,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:33,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:33,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:33,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:33,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:58:33,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:33,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:33,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:33,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-28 12:58:33,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:33,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:58:33,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:33,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:33,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:33,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:33,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:33,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:33,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-28 12:58:33,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:33,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:33,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:33,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-28 12:58:33,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:33,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:58:33,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:33,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:33,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:33,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:33,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:33,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:33,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-28 12:58:33,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:33,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:33,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:33,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-28 12:58:33,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:33,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-28 12:58:33,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:33,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:33,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:33,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:33,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:33,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:34,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1662 [2020-10-28 12:58:34,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:34,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:34,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:34,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-28 12:58:34,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:34,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-28 12:58:34,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:34,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:34,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:58:34,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:34,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-28 12:58:34,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:34,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1842 [2020-10-28 12:58:34,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:34,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking...