/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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/Problem16_label44.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 08:06:17,462 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 08:06:17,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 08:06:17,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 08:06:17,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 08:06:17,541 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 08:06:17,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 08:06:17,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 08:06:17,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 08:06:17,561 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 08:06:17,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 08:06:17,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 08:06:17,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 08:06:17,567 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 08:06:17,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 08:06:17,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 08:06:17,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 08:06:17,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 08:06:17,583 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 08:06:17,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 08:06:17,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 08:06:17,595 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 08:06:17,596 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 08:06:17,599 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 08:06:17,607 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 08:06:17,608 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 08:06:17,608 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 08:06:17,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 08:06:17,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 08:06:17,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 08:06:17,612 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 08:06:17,613 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 08:06:17,615 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 08:06:17,616 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 08:06:17,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 08:06:17,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 08:06:17,619 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 08:06:17,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 08:06:17,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 08:06:17,620 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 08:06:17,621 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 08:06:17,629 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 [2020-10-29 08:06:17,680 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 08:06:17,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 08:06:17,684 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 08:06:17,685 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 08:06:17,685 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 08:06:17,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 08:06:17,685 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 08:06:17,686 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 08:06:17,686 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 08:06:17,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 08:06:17,687 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 08:06:17,688 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 08:06:17,688 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 08:06:17,688 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 08:06:17,688 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 08:06:17,688 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 08:06:17,689 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 08:06:17,689 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 08:06:17,689 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 08:06:17,689 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 08:06:17,689 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 08:06:17,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 08:06:17,690 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 08:06:17,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 08:06:17,690 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 08:06:17,690 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 08:06:17,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 08:06:17,691 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 08:06:17,691 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 08:06:17,691 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 08:06:18,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 08:06:18,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 08:06:18,145 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 08:06:18,146 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 08:06:18,147 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 08:06:18,149 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label44.c [2020-10-29 08:06:18,233 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0bfd1f661/683991fcb0d54a8e9cee205efeba6a4f/FLAGa74e283a3 [2020-10-29 08:06:19,075 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 08:06:19,075 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label44.c [2020-10-29 08:06:19,110 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0bfd1f661/683991fcb0d54a8e9cee205efeba6a4f/FLAGa74e283a3 [2020-10-29 08:06:19,227 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0bfd1f661/683991fcb0d54a8e9cee205efeba6a4f [2020-10-29 08:06:19,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 08:06:19,238 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 08:06:19,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 08:06:19,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 08:06:19,244 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 08:06:19,245 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:06:19" (1/1) ... [2020-10-29 08:06:19,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@696d964b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:06:19, skipping insertion in model container [2020-10-29 08:06:19,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:06:19" (1/1) ... [2020-10-29 08:06:19,258 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 08:06:19,319 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 08:06:20,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:06:20,121 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 08:06:20,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:06:20,391 INFO L208 MainTranslator]: Completed translation [2020-10-29 08:06:20,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:06:20 WrapperNode [2020-10-29 08:06:20,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 08:06:20,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 08:06:20,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 08:06:20,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 08:06:20,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:06:20" (1/1) ... [2020-10-29 08:06:20,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:06:20" (1/1) ... [2020-10-29 08:06:20,474 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:06:20" (1/1) ... [2020-10-29 08:06:20,474 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:06:20" (1/1) ... [2020-10-29 08:06:20,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:06:20" (1/1) ... [2020-10-29 08:06:20,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:06:20" (1/1) ... [2020-10-29 08:06:20,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:06:20" (1/1) ... [2020-10-29 08:06:20,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 08:06:20,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 08:06:20,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 08:06:20,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 08:06:20,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:06:20" (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 [2020-10-29 08:06:20,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 08:06:20,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 08:06:20,734 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 08:06:20,734 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 08:06:20,735 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-29 08:06:20,736 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 08:06:20,736 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 08:06:20,737 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-29 08:06:20,737 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 08:06:20,737 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 08:06:20,738 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 08:06:20,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 08:06:20,739 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 08:06:20,739 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 08:06:20,739 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 08:06:20,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 08:06:20,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 08:06:20,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 08:06:20,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 08:06:20,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 08:06:20,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 08:06:23,198 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 08:06:23,199 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 08:06:23,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:06:23 BoogieIcfgContainer [2020-10-29 08:06:23,208 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 08:06:23,211 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 08:06:23,211 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 08:06:23,215 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 08:06:23,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 08:06:19" (1/3) ... [2020-10-29 08:06:23,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ee863d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:06:23, skipping insertion in model container [2020-10-29 08:06:23,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:06:20" (2/3) ... [2020-10-29 08:06:23,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ee863d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:06:23, skipping insertion in model container [2020-10-29 08:06:23,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:06:23" (3/3) ... [2020-10-29 08:06:23,219 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem16_label44.c [2020-10-29 08:06:23,233 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 08:06:23,239 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 08:06:23,255 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 08:06:23,294 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 08:06:23,294 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 08:06:23,294 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 08:06:23,294 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 08:06:23,294 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 08:06:23,294 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 08:06:23,295 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 08:06:23,295 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 08:06:23,324 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states. [2020-10-29 08:06:23,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-29 08:06:23,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:06:23,334 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] [2020-10-29 08:06:23,334 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:06:23,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:06:23,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1724332564, now seen corresponding path program 1 times [2020-10-29 08:06:23,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:06:23,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2117845901] [2020-10-29 08:06:23,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:06:23,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:23,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:24,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:24,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-29 08:06:24,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:24,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 588 [2020-10-29 08:06:24,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:24,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:24,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:06:24,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:06:24,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-29 08:06:24,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 08:06:24,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:06:24,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:24,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:24,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:24,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:06:24,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:24,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 08:06:24,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:24,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:24,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:06:24,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:24,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:06:24,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:06:24,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:06:24,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2117845901] [2020-10-29 08:06:24,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:06:24,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 08:06:24,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252008367] [2020-10-29 08:06:24,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 08:06:24,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:06:24,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 08:06:24,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:06:24,403 INFO L87 Difference]: Start difference. First operand 413 states. Second operand 5 states. [2020-10-29 08:06:31,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:06:31,823 INFO L93 Difference]: Finished difference Result 1520 states and 2855 transitions. [2020-10-29 08:06:31,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 08:06:31,825 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2020-10-29 08:06:31,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:06:31,852 INFO L225 Difference]: With dead ends: 1520 [2020-10-29 08:06:31,853 INFO L226 Difference]: Without dead ends: 1039 [2020-10-29 08:06:31,866 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:06:31,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2020-10-29 08:06:31,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1035. [2020-10-29 08:06:31,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1035 states. [2020-10-29 08:06:32,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1486 transitions. [2020-10-29 08:06:32,006 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1486 transitions. Word has length 37 [2020-10-29 08:06:32,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:06:32,006 INFO L481 AbstractCegarLoop]: Abstraction has 1035 states and 1486 transitions. [2020-10-29 08:06:32,007 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 08:06:32,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1486 transitions. [2020-10-29 08:06:32,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-29 08:06:32,013 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:06:32,013 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:06:32,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 08:06:32,014 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:06:32,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:06:32,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1346240627, now seen corresponding path program 1 times [2020-10-29 08:06:32,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:06:32,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [110599212] [2020-10-29 08:06:32,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:06:32,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:32,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:32,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:33,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:33,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-29 08:06:33,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:06:33,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1438 [2020-10-29 08:06:33,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:33,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:33,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:06:33,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:06:33,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-29 08:06:33,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 08:06:33,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:06:33,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:33,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:33,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:33,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:06:33,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:33,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 08:06:33,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:33,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:33,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:06:33,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:33,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:06:33,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:33,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:06:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:33,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:33,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:33,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 08:06:33,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:33,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-29 08:06:33,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:33,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:33,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:33,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:06:33,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 08:06:33,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:06:34,035 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:06:34,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [110599212] [2020-10-29 08:06:34,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:06:34,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 08:06:34,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005968033] [2020-10-29 08:06:34,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:06:34,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:06:34,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:06:34,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:06:34,047 INFO L87 Difference]: Start difference. First operand 1035 states and 1486 transitions. Second operand 8 states. [2020-10-29 08:06:44,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:06:44,335 INFO L93 Difference]: Finished difference Result 4148 states and 6100 transitions. [2020-10-29 08:06:44,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:06:44,336 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 113 [2020-10-29 08:06:44,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:06:44,372 INFO L225 Difference]: With dead ends: 4148 [2020-10-29 08:06:44,372 INFO L226 Difference]: Without dead ends: 3119 [2020-10-29 08:06:44,379 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-29 08:06:44,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3119 states. [2020-10-29 08:06:44,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3119 to 3103. [2020-10-29 08:06:44,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3103 states. [2020-10-29 08:06:44,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3103 states to 3103 states and 4164 transitions. [2020-10-29 08:06:44,566 INFO L78 Accepts]: Start accepts. Automaton has 3103 states and 4164 transitions. Word has length 113 [2020-10-29 08:06:44,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:06:44,567 INFO L481 AbstractCegarLoop]: Abstraction has 3103 states and 4164 transitions. [2020-10-29 08:06:44,567 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:06:44,567 INFO L276 IsEmpty]: Start isEmpty. Operand 3103 states and 4164 transitions. [2020-10-29 08:06:44,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-10-29 08:06:44,576 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:06:44,576 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 08:06:44,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 08:06:44,577 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:06:44,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:06:44,577 INFO L82 PathProgramCache]: Analyzing trace with hash -1519606626, now seen corresponding path program 1 times [2020-10-29 08:06:44,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:06:44,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1399286460] [2020-10-29 08:06:44,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:06:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:44,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:44,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:44,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:45,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:45,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:47,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:47,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-10-29 08:06:47,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:06:47,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2977 [2020-10-29 08:06:47,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:47,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:47,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:06:47,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:06:47,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-29 08:06:47,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:06:47,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:06:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:47,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:47,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:47,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:06:47,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:47,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 08:06:47,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:47,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:47,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:06:47,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:47,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:06:47,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:06:47,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:06:47,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:47,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:47,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:48,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:48,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 08:06:48,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:06:48,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-29 08:06:48,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:48,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:48,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:06:48,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:48,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 08:06:48,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:48,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 08:06:48,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:48,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:48,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:48,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:06:48,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:48,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-29 08:06:48,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:48,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:48,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:48,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:06:48,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-29 08:06:48,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:06:48,288 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 124 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 08:06:48,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1399286460] [2020-10-29 08:06:48,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:06:48,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:06:48,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444203798] [2020-10-29 08:06:48,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:06:48,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:06:48,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:06:48,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:06:48,293 INFO L87 Difference]: Start difference. First operand 3103 states and 4164 transitions. Second operand 7 states. [2020-10-29 08:06:54,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:06:54,337 INFO L93 Difference]: Finished difference Result 7290 states and 10191 transitions. [2020-10-29 08:06:54,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:06:54,342 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 200 [2020-10-29 08:06:54,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:06:54,374 INFO L225 Difference]: With dead ends: 7290 [2020-10-29 08:06:54,374 INFO L226 Difference]: Without dead ends: 4193 [2020-10-29 08:06:54,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:06:54,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4193 states. [2020-10-29 08:06:54,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4193 to 3808. [2020-10-29 08:06:54,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3808 states. [2020-10-29 08:06:54,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3808 states to 3808 states and 5133 transitions. [2020-10-29 08:06:54,536 INFO L78 Accepts]: Start accepts. Automaton has 3808 states and 5133 transitions. Word has length 200 [2020-10-29 08:06:54,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:06:54,537 INFO L481 AbstractCegarLoop]: Abstraction has 3808 states and 5133 transitions. [2020-10-29 08:06:54,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:06:54,537 INFO L276 IsEmpty]: Start isEmpty. Operand 3808 states and 5133 transitions. [2020-10-29 08:06:54,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2020-10-29 08:06:54,545 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:06:54,546 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:06:54,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 08:06:54,546 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:06:54,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:06:54,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1122960387, now seen corresponding path program 1 times [2020-10-29 08:06:54,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:06:54,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1920534391] [2020-10-29 08:06:54,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:06:54,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:54,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:54,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:55,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:55,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:59,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:59,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:59,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 394 [2020-10-29 08:06:59,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:06:59,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4637 [2020-10-29 08:06:59,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:59,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:59,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:06:59,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-29 08:06:59,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-29 08:06:59,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:06:59,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:06:59,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:59,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:59,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:59,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:06:59,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:59,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 08:06:59,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:59,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:59,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:59,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:59,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:59,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:59,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:06:59,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:59,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:59,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:59,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 08:06:59,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:59,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-29 08:06:59,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:59,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:59,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:06:59,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:59,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 08:06:59,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:59,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 08:06:59,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:59,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:59,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:00,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:00,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 08:07:00,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:07:00,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 470 [2020-10-29 08:07:00,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:00,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:00,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:00,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:07:00,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-29 08:07:00,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 49 [2020-10-29 08:07:00,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-29 08:07:00,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:00,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:00,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:00,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:07:00,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:00,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-29 08:07:00,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:00,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:00,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:00,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:07:00,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 08:07:00,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:07:00,824 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 263 proven. 6 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-29 08:07:00,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1920534391] [2020-10-29 08:07:00,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:07:00,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:07:00,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066378931] [2020-10-29 08:07:00,827 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:07:00,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:07:00,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:07:00,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:07:00,828 INFO L87 Difference]: Start difference. First operand 3808 states and 5133 transitions. Second operand 7 states. [2020-10-29 08:07:07,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:07:07,374 INFO L93 Difference]: Finished difference Result 9734 states and 13502 transitions. [2020-10-29 08:07:07,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:07:07,375 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 378 [2020-10-29 08:07:07,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:07:07,401 INFO L225 Difference]: With dead ends: 9734 [2020-10-29 08:07:07,401 INFO L226 Difference]: Without dead ends: 4854 [2020-10-29 08:07:07,414 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:07:07,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4854 states. [2020-10-29 08:07:07,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4854 to 4828. [2020-10-29 08:07:07,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4828 states. [2020-10-29 08:07:07,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4828 states to 4828 states and 5440 transitions. [2020-10-29 08:07:07,546 INFO L78 Accepts]: Start accepts. Automaton has 4828 states and 5440 transitions. Word has length 378 [2020-10-29 08:07:07,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:07:07,547 INFO L481 AbstractCegarLoop]: Abstraction has 4828 states and 5440 transitions. [2020-10-29 08:07:07,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:07:07,547 INFO L276 IsEmpty]: Start isEmpty. Operand 4828 states and 5440 transitions. [2020-10-29 08:07:07,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 564 [2020-10-29 08:07:07,564 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:07:07,564 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-29 08:07:07,565 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 08:07:07,565 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:07:07,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:07:07,565 INFO L82 PathProgramCache]: Analyzing trace with hash -952511169, now seen corresponding path program 1 times [2020-10-29 08:07:07,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:07:07,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1257358900] [2020-10-29 08:07:07,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:07:07,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:07,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:07,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:07,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:09,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:12,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:12,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 583 [2020-10-29 08:07:12,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:07:12,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-29 08:07:12,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:12,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:12,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:12,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 241 [2020-10-29 08:07:12,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-29 08:07:12,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:12,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:07:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:12,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:12,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:12,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:07:12,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:12,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:07:12,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:12,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:12,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:12,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:12,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:12,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:12,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:07:12,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:12,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:12,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:12,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-29 08:07:12,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:12,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:07:12,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:12,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:12,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:12,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:12,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:12,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:12,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 08:07:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:12,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:13,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:13,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:07:13,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:13,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-29 08:07:13,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:13,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:13,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:13,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:13,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-29 08:07:13,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:13,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-29 08:07:13,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:13,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:13,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:13,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:07:13,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:13,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-29 08:07:13,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:13,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:13,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:13,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:07:13,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 08:07:13,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:07:13,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-29 08:07:13,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:13,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:13,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:13,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:07:13,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:13,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-29 08:07:13,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:13,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:13,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:13,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:07:13,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:13,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:07:13,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2020-10-29 08:07:13,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:13,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:13,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:13,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:07:13,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:13,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 08:07:13,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:13,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:13,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:13,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:07:13,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:13,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:07:14,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1068 backedges. 375 proven. 178 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2020-10-29 08:07:14,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1257358900] [2020-10-29 08:07:14,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:07:14,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:07:14,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284025417] [2020-10-29 08:07:14,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:07:14,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:07:14,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:07:14,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:07:14,138 INFO L87 Difference]: Start difference. First operand 4828 states and 5440 transitions. Second operand 7 states. [2020-10-29 08:07:18,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:07:18,476 INFO L93 Difference]: Finished difference Result 9682 states and 10929 transitions. [2020-10-29 08:07:18,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:07:18,480 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 563 [2020-10-29 08:07:18,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:07:18,502 INFO L225 Difference]: With dead ends: 9682 [2020-10-29 08:07:18,502 INFO L226 Difference]: Without dead ends: 4860 [2020-10-29 08:07:18,515 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:07:18,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4860 states. [2020-10-29 08:07:18,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4860 to 4496. [2020-10-29 08:07:18,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4496 states. [2020-10-29 08:07:18,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4496 states to 4496 states and 4876 transitions. [2020-10-29 08:07:18,629 INFO L78 Accepts]: Start accepts. Automaton has 4496 states and 4876 transitions. Word has length 563 [2020-10-29 08:07:18,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:07:18,630 INFO L481 AbstractCegarLoop]: Abstraction has 4496 states and 4876 transitions. [2020-10-29 08:07:18,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:07:18,630 INFO L276 IsEmpty]: Start isEmpty. Operand 4496 states and 4876 transitions. [2020-10-29 08:07:18,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 682 [2020-10-29 08:07:18,654 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:07:18,654 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:07:18,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 08:07:18,655 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:07:18,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:07:18,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1525006859, now seen corresponding path program 1 times [2020-10-29 08:07:18,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:07:18,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1136207647] [2020-10-29 08:07:18,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:07:18,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:18,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:19,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:19,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:19,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:21,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:23,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:23,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 701 [2020-10-29 08:07:23,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:07:23,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-29 08:07:23,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:23,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:23,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:07:23,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:07:23,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-29 08:07:23,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:23,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:07:23,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:23,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:23,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:23,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:07:23,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:23,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:07:23,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:23,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:23,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:23,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:23,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:07:23,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:24,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:07:24,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:24,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:24,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:24,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:07:24,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:24,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 406 [2020-10-29 08:07:24,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:24,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:24,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:24,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:07:24,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-29 08:07:24,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:24,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-29 08:07:24,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:24,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:24,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:24,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:07:24,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:24,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:07:24,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:24,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:24,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:24,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:07:24,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:24,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:07:24,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-29 08:07:24,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:24,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:24,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:24,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:07:24,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:24,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-29 08:07:24,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:24,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:24,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:24,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 08:07:24,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:24,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:07:25,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:07:25,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:25,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:25,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:25,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:07:25,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:25,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:07:25,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:25,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:25,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:25,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:07:25,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:25,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:25,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 580 [2020-10-29 08:07:25,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:25,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:25,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:25,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:07:25,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:25,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 08:07:25,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:25,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:25,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:25,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:07:25,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:25,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:25,945 INFO L134 CoverageAnalysis]: Checked inductivity of 1001 backedges. 145 proven. 375 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2020-10-29 08:07:25,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1136207647] [2020-10-29 08:07:25,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:07:25,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:07:25,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353036054] [2020-10-29 08:07:25,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:07:25,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:07:25,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:07:25,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:07:25,949 INFO L87 Difference]: Start difference. First operand 4496 states and 4876 transitions. Second operand 7 states. [2020-10-29 08:07:29,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:07:29,950 INFO L93 Difference]: Finished difference Result 9711 states and 10528 transitions. [2020-10-29 08:07:29,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:07:29,951 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 681 [2020-10-29 08:07:29,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:07:29,976 INFO L225 Difference]: With dead ends: 9711 [2020-10-29 08:07:29,976 INFO L226 Difference]: Without dead ends: 5221 [2020-10-29 08:07:29,986 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:07:29,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5221 states. [2020-10-29 08:07:30,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5221 to 5181. [2020-10-29 08:07:30,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5181 states. [2020-10-29 08:07:30,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5181 states to 5181 states and 5593 transitions. [2020-10-29 08:07:30,111 INFO L78 Accepts]: Start accepts. Automaton has 5181 states and 5593 transitions. Word has length 681 [2020-10-29 08:07:30,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:07:30,112 INFO L481 AbstractCegarLoop]: Abstraction has 5181 states and 5593 transitions. [2020-10-29 08:07:30,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:07:30,112 INFO L276 IsEmpty]: Start isEmpty. Operand 5181 states and 5593 transitions. [2020-10-29 08:07:30,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 766 [2020-10-29 08:07:30,145 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:07:30,146 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:07:30,146 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 08:07:30,146 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:07:30,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:07:30,147 INFO L82 PathProgramCache]: Analyzing trace with hash 477811227, now seen corresponding path program 1 times [2020-10-29 08:07:30,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:07:30,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1246288233] [2020-10-29 08:07:30,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:07:30,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:30,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:30,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:31,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:35,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:35,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:35,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 785 [2020-10-29 08:07:35,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:07:35,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5098 [2020-10-29 08:07:35,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:35,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:35,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:35,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-29 08:07:35,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-29 08:07:35,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:07:35,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:07:35,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:35,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:35,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:35,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:07:35,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:35,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:07:35,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:35,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:35,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:35,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:35,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:35,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:35,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:07:35,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:35,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:35,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:35,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:07:35,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:35,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-29 08:07:35,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:35,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:35,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:35,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:35,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-29 08:07:35,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:35,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:07:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:35,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:36,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:36,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-29 08:07:36,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:36,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-10-29 08:07:36,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:36,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:36,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:36,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:07:36,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-29 08:07:36,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:07:36,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-29 08:07:36,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:36,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:36,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:36,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:07:36,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:36,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-29 08:07:36,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:36,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:36,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:36,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 08:07:36,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:36,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:36,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2020-10-29 08:07:36,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:36,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:36,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:36,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:07:36,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:36,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 08:07:36,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:36,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:36,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:36,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:07:36,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:36,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:07:36,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 664 [2020-10-29 08:07:36,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:36,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:36,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:36,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:07:36,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:36,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 08:07:36,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:36,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:36,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:36,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:07:36,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:36,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:37,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1214 backedges. 317 proven. 319 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2020-10-29 08:07:37,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1246288233] [2020-10-29 08:07:37,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:07:37,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:07:37,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465765600] [2020-10-29 08:07:37,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:07:37,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:07:37,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:07:37,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:07:37,107 INFO L87 Difference]: Start difference. First operand 5181 states and 5593 transitions. Second operand 7 states. [2020-10-29 08:07:40,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:07:40,903 INFO L93 Difference]: Finished difference Result 11413 states and 12522 transitions. [2020-10-29 08:07:40,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:07:40,905 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 765 [2020-10-29 08:07:40,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:07:40,932 INFO L225 Difference]: With dead ends: 11413 [2020-10-29 08:07:40,932 INFO L226 Difference]: Without dead ends: 6914 [2020-10-29 08:07:40,943 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:07:40,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6914 states. [2020-10-29 08:07:41,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6914 to 6896. [2020-10-29 08:07:41,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6896 states. [2020-10-29 08:07:41,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6896 states to 6896 states and 7491 transitions. [2020-10-29 08:07:41,105 INFO L78 Accepts]: Start accepts. Automaton has 6896 states and 7491 transitions. Word has length 765 [2020-10-29 08:07:41,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:07:41,106 INFO L481 AbstractCegarLoop]: Abstraction has 6896 states and 7491 transitions. [2020-10-29 08:07:41,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:07:41,106 INFO L276 IsEmpty]: Start isEmpty. Operand 6896 states and 7491 transitions. [2020-10-29 08:07:41,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1002 [2020-10-29 08:07:41,129 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:07:41,131 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:07:41,132 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 08:07:41,132 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:07:41,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:07:41,133 INFO L82 PathProgramCache]: Analyzing trace with hash -528124724, now seen corresponding path program 1 times [2020-10-29 08:07:41,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:07:41,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1207353432] [2020-10-29 08:07:41,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:07:41,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:41,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:41,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:42,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:42,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:46,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:46,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1019 [2020-10-29 08:07:46,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:07:46,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5072 [2020-10-29 08:07:46,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:46,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:46,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:07:46,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:07:46,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-29 08:07:46,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:46,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:07:46,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:46,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:46,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:46,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:07:46,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:46,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 08:07:46,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:46,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:46,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:46,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:46,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:07:46,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:46,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:07:46,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:46,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:46,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:47,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:47,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-29 08:07:47,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:07:47,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 390 [2020-10-29 08:07:47,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:47,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:47,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:47,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:47,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-29 08:07:47,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:47,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-29 08:07:47,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:47,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:47,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:47,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:07:47,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:47,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-10-29 08:07:47,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:47,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:47,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:47,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:07:47,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-29 08:07:47,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:47,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-29 08:07:47,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:47,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:47,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:47,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 08:07:47,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:47,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-29 08:07:47,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:47,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:47,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:47,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-10-29 08:07:47,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:47,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:47,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 699 [2020-10-29 08:07:47,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:47,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:48,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:48,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:07:48,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:48,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-29 08:07:48,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:48,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:48,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:48,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-29 08:07:48,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:48,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:49,037 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 365 proven. 440 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2020-10-29 08:07:49,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1207353432] [2020-10-29 08:07:49,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:07:49,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:07:49,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376662775] [2020-10-29 08:07:49,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:07:49,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:07:49,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:07:49,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:07:49,040 INFO L87 Difference]: Start difference. First operand 6896 states and 7491 transitions. Second operand 7 states. [2020-10-29 08:07:52,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:07:52,892 INFO L93 Difference]: Finished difference Result 13463 states and 14660 transitions. [2020-10-29 08:07:52,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:07:52,894 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1001 [2020-10-29 08:07:52,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:07:52,917 INFO L225 Difference]: With dead ends: 13463 [2020-10-29 08:07:52,917 INFO L226 Difference]: Without dead ends: 7249 [2020-10-29 08:07:52,931 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:07:52,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7249 states. [2020-10-29 08:07:53,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7249 to 6896. [2020-10-29 08:07:53,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6896 states. [2020-10-29 08:07:53,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6896 states to 6896 states and 7480 transitions. [2020-10-29 08:07:53,085 INFO L78 Accepts]: Start accepts. Automaton has 6896 states and 7480 transitions. Word has length 1001 [2020-10-29 08:07:53,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:07:53,086 INFO L481 AbstractCegarLoop]: Abstraction has 6896 states and 7480 transitions. [2020-10-29 08:07:53,086 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:07:53,087 INFO L276 IsEmpty]: Start isEmpty. Operand 6896 states and 7480 transitions. [2020-10-29 08:07:53,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1036 [2020-10-29 08:07:53,113 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:07:53,114 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:07:53,114 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 08:07:53,114 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:07:53,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:07:53,115 INFO L82 PathProgramCache]: Analyzing trace with hash 355776383, now seen corresponding path program 1 times [2020-10-29 08:07:53,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:07:53,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1784487378] [2020-10-29 08:07:53,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:07:53,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:53,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:53,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:56,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:57,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:58,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:58,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1055 [2020-10-29 08:07:58,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:07:58,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5142 [2020-10-29 08:07:58,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:58,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:58,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:58,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 741 [2020-10-29 08:07:58,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:07:58,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:58,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:07:58,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:58,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:58,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:58,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:07:58,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:58,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:07:58,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:58,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:58,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:58,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:58,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:58,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:58,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:07:58,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:58,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:58,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:58,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:07:58,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:58,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 08:07:58,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:58,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:58,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:58,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:58,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:58,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:58,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:07:58,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:58,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:58,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:58,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:07:58,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:58,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:07:58,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:58,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:58,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:58,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:58,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:58,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:58,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:07:58,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:58,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:58,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:58,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:07:58,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:58,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 08:07:58,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:58,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:58,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:58,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:58,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:58,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:58,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:07:59,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:59,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:59,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:59,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 08:07:59,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:59,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-10-29 08:07:59,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:59,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:59,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:59,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:59,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-29 08:07:59,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:59,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-10-29 08:07:59,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:59,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:59,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:59,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:07:59,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:59,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292 [2020-10-29 08:07:59,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:59,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:59,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:59,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:07:59,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:07:59,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:01,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1776 backedges. 873 proven. 2 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2020-10-29 08:08:01,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1784487378] [2020-10-29 08:08:01,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:08:01,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:08:01,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251623923] [2020-10-29 08:08:01,804 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:08:01,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:08:01,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:08:01,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:08:01,806 INFO L87 Difference]: Start difference. First operand 6896 states and 7480 transitions. Second operand 7 states. [2020-10-29 08:08:06,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:08:06,003 INFO L93 Difference]: Finished difference Result 13124 states and 14282 transitions. [2020-10-29 08:08:06,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 08:08:06,008 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1035 [2020-10-29 08:08:06,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:08:06,030 INFO L225 Difference]: With dead ends: 13124 [2020-10-29 08:08:06,031 INFO L226 Difference]: Without dead ends: 6910 [2020-10-29 08:08:06,045 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:08:06,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6910 states. [2020-10-29 08:08:06,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6910 to 6896. [2020-10-29 08:08:06,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6896 states. [2020-10-29 08:08:06,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6896 states to 6896 states and 7476 transitions. [2020-10-29 08:08:06,202 INFO L78 Accepts]: Start accepts. Automaton has 6896 states and 7476 transitions. Word has length 1035 [2020-10-29 08:08:06,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:08:06,204 INFO L481 AbstractCegarLoop]: Abstraction has 6896 states and 7476 transitions. [2020-10-29 08:08:06,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:08:06,204 INFO L276 IsEmpty]: Start isEmpty. Operand 6896 states and 7476 transitions. [2020-10-29 08:08:06,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1054 [2020-10-29 08:08:06,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:08:06,230 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, 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, 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, 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, 2, 2, 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] [2020-10-29 08:08:06,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 08:08:06,231 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:08:06,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:08:06,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1340631246, now seen corresponding path program 1 times [2020-10-29 08:08:06,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:08:06,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2008030880] [2020-10-29 08:08:06,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:08:06,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:06,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:06,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:06,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:07,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:11,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:11,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1075 [2020-10-29 08:08:11,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:08:11,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5077 [2020-10-29 08:08:11,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:11,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:11,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:08:11,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 761 [2020-10-29 08:08:11,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-29 08:08:11,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:11,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:08:11,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:11,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:11,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:11,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:08:11,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:11,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:08:11,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:11,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:11,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:11,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:11,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:11,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:11,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:08:11,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:11,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:11,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:11,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:08:11,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:11,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 08:08:11,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:11,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:11,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:11,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:11,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:11,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:11,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:08:11,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:11,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:11,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:11,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:08:11,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:11,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 08:08:11,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:11,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:11,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:11,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:11,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:11,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:11,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:08:11,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:11,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:11,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:11,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:08:11,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:11,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 08:08:11,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:11,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:11,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:11,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:11,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:11,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:11,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:08:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:11,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:12,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:12,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:08:12,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:12,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 08:08:12,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:12,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:12,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:12,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:12,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:12,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:12,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 08:08:12,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:12,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:12,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:12,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:08:12,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:12,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-29 08:08:12,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:12,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:12,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:12,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:12,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-29 08:08:12,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:12,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2020-10-29 08:08:12,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:12,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:12,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:12,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:12,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:08:12,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:08:12,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 370 [2020-10-29 08:08:12,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:12,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:12,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:12,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:12,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-29 08:08:12,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:13,338 INFO L134 CoverageAnalysis]: Checked inductivity of 2030 backedges. 204 proven. 6 refuted. 0 times theorem prover too weak. 1820 trivial. 0 not checked. [2020-10-29 08:08:13,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2008030880] [2020-10-29 08:08:13,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:08:13,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 08:08:13,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473545701] [2020-10-29 08:08:13,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 08:08:13,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:08:13,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 08:08:13,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 08:08:13,341 INFO L87 Difference]: Start difference. First operand 6896 states and 7476 transitions. Second operand 6 states. [2020-10-29 08:08:17,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:08:17,059 INFO L93 Difference]: Finished difference Result 13116 states and 14261 transitions. [2020-10-29 08:08:17,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 08:08:17,060 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1053 [2020-10-29 08:08:17,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:08:17,081 INFO L225 Difference]: With dead ends: 13116 [2020-10-29 08:08:17,082 INFO L226 Difference]: Without dead ends: 6902 [2020-10-29 08:08:17,095 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:08:17,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6902 states. [2020-10-29 08:08:17,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6902 to 6896. [2020-10-29 08:08:17,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6896 states. [2020-10-29 08:08:17,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6896 states to 6896 states and 7373 transitions. [2020-10-29 08:08:17,239 INFO L78 Accepts]: Start accepts. Automaton has 6896 states and 7373 transitions. Word has length 1053 [2020-10-29 08:08:17,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:08:17,240 INFO L481 AbstractCegarLoop]: Abstraction has 6896 states and 7373 transitions. [2020-10-29 08:08:17,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 08:08:17,240 INFO L276 IsEmpty]: Start isEmpty. Operand 6896 states and 7373 transitions. [2020-10-29 08:08:17,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1105 [2020-10-29 08:08:17,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:08:17,265 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, 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, 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, 3, 3, 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] [2020-10-29 08:08:17,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 08:08:17,265 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:08:17,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:08:17,266 INFO L82 PathProgramCache]: Analyzing trace with hash 872790638, now seen corresponding path program 1 times [2020-10-29 08:08:17,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:08:17,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [386505900] [2020-10-29 08:08:17,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:08:17,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:17,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:17,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:18,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:18,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:22,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:22,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1130 [2020-10-29 08:08:22,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:08:22,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-29 08:08:22,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:22,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:22,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:22,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 615 [2020-10-29 08:08:22,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-29 08:08:22,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:22,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:08:22,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:22,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:22,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:22,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:08:22,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:22,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:08:22,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:22,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:22,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:22,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:22,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:22,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:22,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:08:22,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:22,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:22,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:22,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:08:22,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:22,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 08:08:22,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:22,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:22,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:22,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:22,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:22,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:22,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:08:22,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:22,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:22,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:22,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:08:22,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:22,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:08:22,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:22,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:22,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:22,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:22,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:22,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:22,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:08:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:22,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:22,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:22,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:08:22,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:22,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 08:08:22,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:22,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:22,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:22,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:22,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:22,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:22,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:08:22,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:22,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:22,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:22,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:08:22,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:22,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 08:08:22,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:22,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:22,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:22,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:22,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-29 08:08:22,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:23,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 08:08:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:23,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:23,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:23,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:08:23,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:23,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-29 08:08:23,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:23,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:23,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:23,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:08:23,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 08:08:23,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:23,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2020-10-29 08:08:23,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:23,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:23,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:23,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:08:23,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:23,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 08:08:23,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:23,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:23,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:23,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:08:23,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:23,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:23,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2020-10-29 08:08:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:23,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:23,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:23,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:08:23,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:23,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 08:08:23,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:23,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:23,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:23,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:08:23,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:23,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:23,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2020-10-29 08:08:23,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:23,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:23,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:23,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:08:23,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:23,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:08:23,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:23,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:23,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:23,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:08:23,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:23,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:24,163 INFO L134 CoverageAnalysis]: Checked inductivity of 3089 backedges. 769 proven. 317 refuted. 0 times theorem prover too weak. 2003 trivial. 0 not checked. [2020-10-29 08:08:24,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [386505900] [2020-10-29 08:08:24,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:08:24,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:08:24,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526400005] [2020-10-29 08:08:24,165 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:08:24,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:08:24,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:08:24,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:08:24,165 INFO L87 Difference]: Start difference. First operand 6896 states and 7373 transitions. Second operand 7 states. [2020-10-29 08:08:29,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:08:29,337 INFO L93 Difference]: Finished difference Result 17206 states and 18648 transitions. [2020-10-29 08:08:29,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:08:29,338 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1104 [2020-10-29 08:08:29,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:08:29,374 INFO L225 Difference]: With dead ends: 17206 [2020-10-29 08:08:29,374 INFO L226 Difference]: Without dead ends: 10992 [2020-10-29 08:08:29,391 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:08:29,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10992 states. [2020-10-29 08:08:29,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10992 to 10647. [2020-10-29 08:08:29,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10647 states. [2020-10-29 08:08:29,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10647 states to 10647 states and 11392 transitions. [2020-10-29 08:08:29,594 INFO L78 Accepts]: Start accepts. Automaton has 10647 states and 11392 transitions. Word has length 1104 [2020-10-29 08:08:29,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:08:29,595 INFO L481 AbstractCegarLoop]: Abstraction has 10647 states and 11392 transitions. [2020-10-29 08:08:29,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:08:29,595 INFO L276 IsEmpty]: Start isEmpty. Operand 10647 states and 11392 transitions. [2020-10-29 08:08:29,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1106 [2020-10-29 08:08:29,624 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:08:29,625 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, 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, 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, 3, 3, 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] [2020-10-29 08:08:29,625 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 08:08:29,626 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:08:29,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:08:29,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1123556956, now seen corresponding path program 1 times [2020-10-29 08:08:29,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:08:29,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2057230303] [2020-10-29 08:08:29,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:08:29,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:30,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:30,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:32,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:33,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:34,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:34,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1131 [2020-10-29 08:08:34,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:08:34,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5060 [2020-10-29 08:08:34,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:34,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:34,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:34,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 616 [2020-10-29 08:08:34,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-29 08:08:34,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:35,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:08:35,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:35,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:35,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:35,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:08:35,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:35,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:08:35,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:35,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:35,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:35,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:35,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:35,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:35,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:08:35,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:35,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:35,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:35,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:08:35,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:35,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 08:08:35,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:35,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:35,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:35,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:35,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:35,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:35,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:08:35,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:35,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:35,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:35,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:08:35,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:35,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 08:08:35,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:35,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:35,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:35,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:35,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:35,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:35,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:08:35,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:35,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:35,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:35,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:08:35,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:35,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 08:08:35,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:35,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:35,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:35,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:35,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:35,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:35,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:08:35,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:35,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:35,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:35,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:08:35,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:35,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 08:08:35,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:35,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:35,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:35,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:35,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 08:08:35,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:35,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-29 08:08:35,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:35,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:35,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:35,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:08:35,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:35,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-29 08:08:35,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:35,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:35,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:35,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:08:35,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 08:08:35,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:35,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 752 [2020-10-29 08:08:35,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:35,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:35,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:35,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:08:35,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:35,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-29 08:08:35,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:35,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:35,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:35,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:08:35,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:35,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:35,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 894 [2020-10-29 08:08:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:35,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:35,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:35,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:08:35,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:35,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 08:08:35,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:35,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:35,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:35,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:08:35,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:35,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:35,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1004 [2020-10-29 08:08:35,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:35,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:36,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:36,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:08:36,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:36,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-29 08:08:36,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:36,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:36,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:36,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:08:36,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:36,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:36,644 INFO L134 CoverageAnalysis]: Checked inductivity of 3096 backedges. 770 proven. 317 refuted. 0 times theorem prover too weak. 2009 trivial. 0 not checked. [2020-10-29 08:08:36,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2057230303] [2020-10-29 08:08:36,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:08:36,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:08:36,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092406892] [2020-10-29 08:08:36,646 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:08:36,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:08:36,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:08:36,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:08:36,647 INFO L87 Difference]: Start difference. First operand 10647 states and 11392 transitions. Second operand 7 states. [2020-10-29 08:08:41,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:08:41,167 INFO L93 Difference]: Finished difference Result 22997 states and 24817 transitions. [2020-10-29 08:08:41,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:08:41,173 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1105 [2020-10-29 08:08:41,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:08:41,212 INFO L225 Difference]: With dead ends: 22997 [2020-10-29 08:08:41,213 INFO L226 Difference]: Without dead ends: 13032 [2020-10-29 08:08:41,234 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:08:41,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13032 states. [2020-10-29 08:08:41,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13032 to 12348. [2020-10-29 08:08:41,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12348 states. [2020-10-29 08:08:41,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12348 states to 12348 states and 13141 transitions. [2020-10-29 08:08:41,461 INFO L78 Accepts]: Start accepts. Automaton has 12348 states and 13141 transitions. Word has length 1105 [2020-10-29 08:08:41,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:08:41,462 INFO L481 AbstractCegarLoop]: Abstraction has 12348 states and 13141 transitions. [2020-10-29 08:08:41,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:08:41,462 INFO L276 IsEmpty]: Start isEmpty. Operand 12348 states and 13141 transitions. [2020-10-29 08:08:41,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1131 [2020-10-29 08:08:41,493 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:08:41,494 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, 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, 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, 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, 3, 3, 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] [2020-10-29 08:08:41,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 08:08:41,495 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:08:41,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:08:41,496 INFO L82 PathProgramCache]: Analyzing trace with hash 463512418, now seen corresponding path program 1 times [2020-10-29 08:08:41,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:08:41,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1786878586] [2020-10-29 08:08:41,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:08:41,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:41,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:42,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:42,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:42,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:46,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:46,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1156 [2020-10-29 08:08:46,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:08:46,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5083 [2020-10-29 08:08:46,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:46,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:46,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:46,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 641 [2020-10-29 08:08:46,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-29 08:08:46,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:46,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:08:46,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:46,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:46,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:46,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:08:46,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:46,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:08:46,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:46,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:46,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:46,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:46,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:46,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:47,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:08:47,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:47,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:47,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:47,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:08:47,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:47,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-29 08:08:47,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:47,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:47,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:47,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:47,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:47,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:47,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:08:47,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:47,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:47,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:47,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:08:47,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:47,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 08:08:47,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:47,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:47,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:47,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:47,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:47,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:47,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:08:47,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:47,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:47,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:47,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:08:47,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:47,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-29 08:08:47,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:47,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:47,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:47,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:47,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:47,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:47,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:08:47,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:47,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:47,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:47,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-29 08:08:47,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:47,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-29 08:08:47,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:47,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:47,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:47,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:47,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-29 08:08:47,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:47,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 633 [2020-10-29 08:08:47,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:47,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:47,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:47,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:08:47,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:47,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-29 08:08:47,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:47,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:47,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:47,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:08:47,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 08:08:47,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:47,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 777 [2020-10-29 08:08:47,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:47,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:47,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:47,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:08:47,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:47,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 08:08:47,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:47,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:47,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:47,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:08:47,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:47,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:47,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 919 [2020-10-29 08:08:47,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:47,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:47,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:47,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:08:47,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:47,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 08:08:47,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:47,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:47,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:47,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:08:47,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:47,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:47,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1029 [2020-10-29 08:08:47,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:47,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:47,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:47,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:08:47,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:47,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 08:08:47,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:47,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:47,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:47,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:08:47,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:47,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:48,644 INFO L134 CoverageAnalysis]: Checked inductivity of 3248 backedges. 795 proven. 317 refuted. 0 times theorem prover too weak. 2136 trivial. 0 not checked. [2020-10-29 08:08:48,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1786878586] [2020-10-29 08:08:48,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:08:48,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:08:48,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60908626] [2020-10-29 08:08:48,646 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:08:48,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:08:48,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:08:48,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:08:48,647 INFO L87 Difference]: Start difference. First operand 12348 states and 13141 transitions. Second operand 7 states. [2020-10-29 08:08:52,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:08:52,963 INFO L93 Difference]: Finished difference Result 28084 states and 30182 transitions. [2020-10-29 08:08:52,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:08:52,964 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1130 [2020-10-29 08:08:52,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:08:53,010 INFO L225 Difference]: With dead ends: 28084 [2020-10-29 08:08:53,011 INFO L226 Difference]: Without dead ends: 16418 [2020-10-29 08:08:53,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:08:53,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16418 states. [2020-10-29 08:08:53,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16418 to 16076. [2020-10-29 08:08:53,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16076 states. [2020-10-29 08:08:53,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16076 states to 16076 states and 17283 transitions. [2020-10-29 08:08:53,530 INFO L78 Accepts]: Start accepts. Automaton has 16076 states and 17283 transitions. Word has length 1130 [2020-10-29 08:08:53,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:08:53,532 INFO L481 AbstractCegarLoop]: Abstraction has 16076 states and 17283 transitions. [2020-10-29 08:08:53,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:08:53,532 INFO L276 IsEmpty]: Start isEmpty. Operand 16076 states and 17283 transitions. [2020-10-29 08:08:53,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1185 [2020-10-29 08:08:53,567 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:08:53,568 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, 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 08:08:53,568 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 08:08:53,568 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:08:53,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:08:53,569 INFO L82 PathProgramCache]: Analyzing trace with hash -730789820, now seen corresponding path program 1 times [2020-10-29 08:08:53,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:08:53,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [809598042] [2020-10-29 08:08:53,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:08:53,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:53,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:54,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:54,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:56,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:56,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:58,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:58,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1210 [2020-10-29 08:08:58,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:08:58,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5156 [2020-10-29 08:08:58,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:58,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:58,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:58,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 733 [2020-10-29 08:08:58,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-29 08:08:58,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:59,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:08:59,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:59,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:59,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:59,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:08:59,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:59,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 08:08:59,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:59,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:59,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:59,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:59,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:59,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:59,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:08:59,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:59,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:59,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:59,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:08:59,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:59,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-29 08:08:59,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:59,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:59,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:59,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:59,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:59,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:59,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:08:59,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:59,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:59,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:59,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:08:59,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:59,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 08:08:59,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:59,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:59,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:59,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:59,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:59,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:59,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:08:59,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:59,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:59,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:59,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:08:59,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:59,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 08:08:59,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:59,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:59,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:59,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:59,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:59,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:59,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:08:59,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:59,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:59,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:59,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:08:59,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:59,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 08:08:59,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:59,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:59,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:59,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:59,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:59,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:59,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-29 08:08:59,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:59,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:59,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:59,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:08:59,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:59,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-29 08:08:59,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:59,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:59,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:59,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:59,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:08:59,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:59,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-29 08:08:59,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:59,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:59,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:59,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-29 08:08:59,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:59,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-10-29 08:08:59,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:59,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:59,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:59,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:08:59,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-29 08:08:59,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:00,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 973 [2020-10-29 08:09:00,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:00,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:00,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:00,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:09:00,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:00,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 08:09:00,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:00,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:00,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:00,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:09:00,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:00,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:00,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1083 [2020-10-29 08:09:00,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:00,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:00,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:00,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:09:00,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:00,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 08:09:00,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:00,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:00,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:00,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:09:00,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:00,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:01,266 INFO L134 CoverageAnalysis]: Checked inductivity of 3114 backedges. 992 proven. 178 refuted. 0 times theorem prover too weak. 1944 trivial. 0 not checked. [2020-10-29 08:09:01,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [809598042] [2020-10-29 08:09:01,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:09:01,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:09:01,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973971120] [2020-10-29 08:09:01,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:09:01,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:09:01,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:09:01,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:09:01,269 INFO L87 Difference]: Start difference. First operand 16076 states and 17283 transitions. Second operand 7 states. [2020-10-29 08:09:05,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:09:05,947 INFO L93 Difference]: Finished difference Result 31811 states and 34219 transitions. [2020-10-29 08:09:05,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:09:05,948 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1184 [2020-10-29 08:09:05,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:09:05,988 INFO L225 Difference]: With dead ends: 31811 [2020-10-29 08:09:05,989 INFO L226 Difference]: Without dead ends: 16417 [2020-10-29 08:09:06,011 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:09:06,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16417 states. [2020-10-29 08:09:06,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16417 to 16415. [2020-10-29 08:09:06,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16415 states. [2020-10-29 08:09:06,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16415 states to 16415 states and 17628 transitions. [2020-10-29 08:09:06,313 INFO L78 Accepts]: Start accepts. Automaton has 16415 states and 17628 transitions. Word has length 1184 [2020-10-29 08:09:06,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:09:06,314 INFO L481 AbstractCegarLoop]: Abstraction has 16415 states and 17628 transitions. [2020-10-29 08:09:06,314 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:09:06,314 INFO L276 IsEmpty]: Start isEmpty. Operand 16415 states and 17628 transitions. [2020-10-29 08:09:06,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1262 [2020-10-29 08:09:06,353 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:09:06,354 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, 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2020-10-29 08:09:06,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 08:09:06,354 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:09:06,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:09:06,355 INFO L82 PathProgramCache]: Analyzing trace with hash 121537182, now seen corresponding path program 1 times [2020-10-29 08:09:06,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:09:06,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [843502386] [2020-10-29 08:09:06,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:09:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:06,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:06,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:07,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:09,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:11,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:11,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1289 [2020-10-29 08:09:11,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:09:11,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5078 [2020-10-29 08:09:11,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:11,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:11,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:09:11,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-29 08:09:11,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-29 08:09:11,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:11,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:09:11,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:11,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:11,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:11,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:09:11,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:11,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:09:11,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:11,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:11,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:11,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:11,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:11,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:11,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:09:11,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:11,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:11,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:11,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:09:11,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:11,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-29 08:09:11,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:11,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:11,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:09:11,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:11,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-29 08:09:11,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:12,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:09:12,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:12,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:12,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:12,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:09:12,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:12,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-29 08:09:12,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:12,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:12,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:09:12,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:09:12,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-29 08:09:12,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:12,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:09:12,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:12,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:12,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:12,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:09:12,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:12,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 08:09:12,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:12,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:12,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:12,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-29 08:09:12,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:12,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:12,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:09:12,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:12,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:12,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:12,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:09:12,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:12,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 08:09:12,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:12,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:12,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:12,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-29 08:09:12,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:12,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:12,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-29 08:09:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:12,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:12,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:12,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:09:12,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:12,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 08:09:12,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:12,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:12,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:12,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-29 08:09:12,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:12,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:12,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-29 08:09:12,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:12,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:12,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:12,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-29 08:09:12,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:12,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-29 08:09:12,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:12,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:12,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:12,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-29 08:09:12,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:12,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:12,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:09:12,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:12,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:12,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:12,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-29 08:09:12,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:12,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 08:09:12,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:12,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:12,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:12,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:12,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:12,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:12,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1050 [2020-10-29 08:09:12,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:12,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:12,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:12,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:09:12,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:12,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 08:09:12,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:12,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:12,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:12,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:09:12,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:12,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:12,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1160 [2020-10-29 08:09:12,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:12,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:12,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:12,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:09:12,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:12,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:09:12,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:12,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:12,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:12,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:09:12,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:12,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:14,210 INFO L134 CoverageAnalysis]: Checked inductivity of 3114 backedges. 415 proven. 642 refuted. 0 times theorem prover too weak. 2057 trivial. 0 not checked. [2020-10-29 08:09:14,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [843502386] [2020-10-29 08:09:14,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:09:14,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:09:14,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119829136] [2020-10-29 08:09:14,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:09:14,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:09:14,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:09:14,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:09:14,213 INFO L87 Difference]: Start difference. First operand 16415 states and 17628 transitions. Second operand 7 states. [2020-10-29 08:09:19,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:09:19,186 INFO L93 Difference]: Finished difference Result 32491 states and 34916 transitions. [2020-10-29 08:09:19,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:09:19,188 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1261 [2020-10-29 08:09:19,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:09:19,234 INFO L225 Difference]: With dead ends: 32491 [2020-10-29 08:09:19,234 INFO L226 Difference]: Without dead ends: 16419 [2020-10-29 08:09:19,259 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:09:19,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16419 states. [2020-10-29 08:09:19,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16419 to 15743. [2020-10-29 08:09:19,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15743 states. [2020-10-29 08:09:19,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15743 states to 15743 states and 16809 transitions. [2020-10-29 08:09:19,575 INFO L78 Accepts]: Start accepts. Automaton has 15743 states and 16809 transitions. Word has length 1261 [2020-10-29 08:09:19,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:09:19,576 INFO L481 AbstractCegarLoop]: Abstraction has 15743 states and 16809 transitions. [2020-10-29 08:09:19,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:09:19,576 INFO L276 IsEmpty]: Start isEmpty. Operand 15743 states and 16809 transitions. [2020-10-29 08:09:19,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1323 [2020-10-29 08:09:19,606 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:09:19,607 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:09:19,607 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 08:09:19,608 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:09:19,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:09:19,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1957268588, now seen corresponding path program 1 times [2020-10-29 08:09:19,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:09:19,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1957828025] [2020-10-29 08:09:19,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:09:19,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:19,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:20,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:20,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:22,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:24,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:24,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1350 [2020-10-29 08:09:24,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:09:24,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5066 [2020-10-29 08:09:24,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:24,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:24,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:09:24,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1122 [2020-10-29 08:09:24,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 08:09:24,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:25,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:09:25,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:25,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:25,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:25,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:09:25,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:25,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:09:25,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:25,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:25,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:25,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:25,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:25,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:25,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:09:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:25,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:25,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:25,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:09:25,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:25,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 08:09:25,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:25,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:25,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:25,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:25,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:25,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:25,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:09:25,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:25,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:25,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:25,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:09:25,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:25,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-29 08:09:25,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:25,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:25,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:25,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:25,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:25,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:25,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:09:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:25,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:25,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:25,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:09:25,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:25,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 08:09:25,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:25,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:25,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:25,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:25,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:25,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:25,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:09:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:25,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:25,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:25,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:09:25,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:25,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 08:09:25,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:25,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:25,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:25,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:25,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:25,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:25,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-29 08:09:25,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:25,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:25,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:25,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:09:25,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:25,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 08:09:25,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:25,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:25,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:25,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:25,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:25,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:25,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-29 08:09:25,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:25,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:25,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:25,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-29 08:09:25,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:25,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-29 08:09:25,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:25,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:25,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:09:25,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:25,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 321 [2020-10-29 08:09:25,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:25,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:09:25,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:25,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:25,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:25,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-29 08:09:25,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:25,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 08:09:25,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:25,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:25,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:09:25,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:25,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-29 08:09:25,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:25,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1111 [2020-10-29 08:09:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:26,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:26,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:26,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:09:26,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:26,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-29 08:09:26,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:26,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:26,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:09:26,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:09:26,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 08:09:26,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:26,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1221 [2020-10-29 08:09:26,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:26,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:26,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:26,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:09:26,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:26,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 08:09:26,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:26,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:26,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:26,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:09:26,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:26,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:27,462 INFO L134 CoverageAnalysis]: Checked inductivity of 3236 backedges. 883 proven. 71 refuted. 0 times theorem prover too weak. 2282 trivial. 0 not checked. [2020-10-29 08:09:27,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1957828025] [2020-10-29 08:09:27,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:09:27,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:09:27,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107366475] [2020-10-29 08:09:27,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:09:27,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:09:27,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:09:27,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:09:27,465 INFO L87 Difference]: Start difference. First operand 15743 states and 16809 transitions. Second operand 7 states. [2020-10-29 08:09:33,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:09:33,766 INFO L93 Difference]: Finished difference Result 31825 states and 33974 transitions. [2020-10-29 08:09:33,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 08:09:33,767 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1322 [2020-10-29 08:09:33,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:09:33,810 INFO L225 Difference]: With dead ends: 31825 [2020-10-29 08:09:33,810 INFO L226 Difference]: Without dead ends: 16427 [2020-10-29 08:09:33,834 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:09:33,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16427 states. [2020-10-29 08:09:34,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16427 to 16425. [2020-10-29 08:09:34,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16425 states. [2020-10-29 08:09:34,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16425 states to 16425 states and 17485 transitions. [2020-10-29 08:09:34,131 INFO L78 Accepts]: Start accepts. Automaton has 16425 states and 17485 transitions. Word has length 1322 [2020-10-29 08:09:34,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:09:34,133 INFO L481 AbstractCegarLoop]: Abstraction has 16425 states and 17485 transitions. [2020-10-29 08:09:34,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:09:34,133 INFO L276 IsEmpty]: Start isEmpty. Operand 16425 states and 17485 transitions. [2020-10-29 08:09:34,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1397 [2020-10-29 08:09:34,176 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:09:34,177 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, 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, 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, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:09:34,177 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 08:09:34,178 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:09:34,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:09:34,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1137514825, now seen corresponding path program 1 times [2020-10-29 08:09:34,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:09:34,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [293116429] [2020-10-29 08:09:34,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:09:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:34,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:35,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:35,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:38,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:39,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:39,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1426 [2020-10-29 08:09:39,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:09:39,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5070 [2020-10-29 08:09:39,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:39,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:39,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:09:39,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 677 [2020-10-29 08:09:39,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-29 08:09:39,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:39,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:09:39,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:39,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:39,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:39,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:09:39,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:39,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:09:39,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:39,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:39,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:39,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:39,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:39,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:39,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:09:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:39,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:40,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:40,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:09:40,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:40,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-29 08:09:40,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:40,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:40,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:40,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:40,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:40,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:40,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:09:40,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:40,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:40,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:40,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:09:40,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:40,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 08:09:40,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:40,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:40,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:40,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:40,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:40,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:40,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:09:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:40,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:40,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:40,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:09:40,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:40,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 08:09:40,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:40,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:40,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:40,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:40,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:40,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:40,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:09:40,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:40,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:40,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:40,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:09:40,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:40,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 08:09:40,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:40,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:40,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:09:40,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:40,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 08:09:40,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:40,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-29 08:09:40,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:40,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:40,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:40,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:09:40,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:40,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-29 08:09:40,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:40,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:40,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:09:40,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:09:40,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 08:09:40,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:40,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-29 08:09:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:40,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:40,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:40,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-29 08:09:40,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:40,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-29 08:09:40,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:40,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:40,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:40,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-29 08:09:40,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:40,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:40,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:09:40,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:40,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:40,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:40,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-29 08:09:40,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:40,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 08:09:40,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:40,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:40,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:40,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:40,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:40,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:40,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1111 [2020-10-29 08:09:40,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:40,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:40,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:40,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 08:09:40,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:40,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 08:09:40,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:40,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:40,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:40,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-29 08:09:40,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:40,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:40,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1185 [2020-10-29 08:09:40,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:40,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:40,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:40,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:09:40,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:40,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 08:09:40,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:40,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:40,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:40,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:09:40,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:40,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:40,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1295 [2020-10-29 08:09:40,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:40,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:40,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:40,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:09:40,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:40,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 08:09:40,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:40,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:40,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:40,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:09:40,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:40,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:41,815 INFO L134 CoverageAnalysis]: Checked inductivity of 3851 backedges. 743 proven. 361 refuted. 0 times theorem prover too weak. 2747 trivial. 0 not checked. [2020-10-29 08:09:41,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [293116429] [2020-10-29 08:09:41,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:09:41,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:09:41,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347300877] [2020-10-29 08:09:41,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:09:41,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:09:41,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:09:41,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:09:41,817 INFO L87 Difference]: Start difference. First operand 16425 states and 17485 transitions. Second operand 7 states.