/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/Problem14_label12.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 07:28:47,135 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 07:28:47,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 07:28:47,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 07:28:47,184 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 07:28:47,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 07:28:47,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 07:28:47,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 07:28:47,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 07:28:47,208 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 07:28:47,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 07:28:47,211 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 07:28:47,212 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 07:28:47,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 07:28:47,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 07:28:47,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 07:28:47,223 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 07:28:47,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 07:28:47,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 07:28:47,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 07:28:47,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 07:28:47,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 07:28:47,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 07:28:47,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 07:28:47,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 07:28:47,258 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 07:28:47,259 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 07:28:47,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 07:28:47,261 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 07:28:47,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 07:28:47,263 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 07:28:47,264 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 07:28:47,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 07:28:47,267 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 07:28:47,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 07:28:47,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 07:28:47,278 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 07:28:47,278 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 07:28:47,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 07:28:47,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 07:28:47,281 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 07:28:47,289 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 07:28:47,318 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 07:28:47,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 07:28:47,320 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 07:28:47,320 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 07:28:47,321 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 07:28:47,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 07:28:47,321 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 07:28:47,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 07:28:47,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 07:28:47,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 07:28:47,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 07:28:47,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 07:28:47,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 07:28:47,323 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 07:28:47,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 07:28:47,323 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 07:28:47,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 07:28:47,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 07:28:47,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 07:28:47,324 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 07:28:47,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 07:28:47,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 07:28:47,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 07:28:47,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 07:28:47,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 07:28:47,325 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 07:28:47,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 07:28:47,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 07:28:47,326 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 07:28:47,326 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 07:28:47,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 07:28:47,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 07:28:47,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 07:28:47,816 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 07:28:47,817 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 07:28:47,818 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label12.c [2020-10-29 07:28:47,896 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d972d6e15/9b1e4a349e5f4a3d90b48357b11395d8/FLAG30d108b06 [2020-10-29 07:28:48,834 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 07:28:48,835 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label12.c [2020-10-29 07:28:48,851 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d972d6e15/9b1e4a349e5f4a3d90b48357b11395d8/FLAG30d108b06 [2020-10-29 07:28:49,006 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d972d6e15/9b1e4a349e5f4a3d90b48357b11395d8 [2020-10-29 07:28:49,010 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 07:28:49,017 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 07:28:49,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 07:28:49,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 07:28:49,024 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 07:28:49,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 07:28:49" (1/1) ... [2020-10-29 07:28:49,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bd71d6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:28:49, skipping insertion in model container [2020-10-29 07:28:49,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 07:28:49" (1/1) ... [2020-10-29 07:28:49,038 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 07:28:49,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 07:28:49,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 07:28:49,572 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 07:28:49,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 07:28:49,787 INFO L208 MainTranslator]: Completed translation [2020-10-29 07:28:49,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:28:49 WrapperNode [2020-10-29 07:28:49,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 07:28:49,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 07:28:49,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 07:28:49,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 07:28:49,807 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:28:49" (1/1) ... [2020-10-29 07:28:49,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:28:49" (1/1) ... [2020-10-29 07:28:49,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:28:49" (1/1) ... [2020-10-29 07:28:49,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:28:49" (1/1) ... [2020-10-29 07:28:49,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:28:49" (1/1) ... [2020-10-29 07:28:49,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:28:49" (1/1) ... [2020-10-29 07:28:49,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:28:49" (1/1) ... [2020-10-29 07:28:49,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 07:28:49,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 07:28:49,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 07:28:49,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 07:28:49,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:28:49" (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 07:28:50,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 07:28:50,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 07:28:50,026 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 07:28:50,026 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 07:28:50,026 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 07:28:50,027 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 07:28:50,027 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 07:28:50,027 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 07:28:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 07:28:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 07:28:50,029 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 07:28:50,029 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 07:28:50,029 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 07:28:50,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 07:28:50,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 07:28:50,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 07:28:50,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 07:28:50,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 07:28:50,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 07:28:51,824 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 07:28:51,825 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 07:28:51,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 07:28:51 BoogieIcfgContainer [2020-10-29 07:28:51,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 07:28:51,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 07:28:51,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 07:28:51,833 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 07:28:51,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 07:28:49" (1/3) ... [2020-10-29 07:28:51,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b5eb4d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 07:28:51, skipping insertion in model container [2020-10-29 07:28:51,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:28:49" (2/3) ... [2020-10-29 07:28:51,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b5eb4d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 07:28:51, skipping insertion in model container [2020-10-29 07:28:51,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 07:28:51" (3/3) ... [2020-10-29 07:28:51,837 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label12.c [2020-10-29 07:28:51,850 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 07:28:51,856 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 07:28:51,869 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 07:28:51,900 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 07:28:51,901 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 07:28:51,901 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 07:28:51,901 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 07:28:51,901 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 07:28:51,901 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 07:28:51,901 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 07:28:51,902 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 07:28:51,926 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-10-29 07:28:51,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-29 07:28:51,933 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:28:51,934 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:28:51,934 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:28:51,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:28:51,941 INFO L82 PathProgramCache]: Analyzing trace with hash 583818998, now seen corresponding path program 1 times [2020-10-29 07:28:51,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:28:51,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [304019360] [2020-10-29 07:28:51,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:28:52,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:28:52,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:28:52,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:28:52,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 07:28:52,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:28:52,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 493 [2020-10-29 07:28:52,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:28:52,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:28:52,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:28:52,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:28:52,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 07:28:52,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-29 07:28:52,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:28:52,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:28:52,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:28:52,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:28:52,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:28:52,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:28:52,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-29 07:28:52,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:28:52,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:28:52,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:28:52,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:28:52,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:28:52,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:28:52,867 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 07:28:52,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [304019360] [2020-10-29 07:28:52,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 07:28:52,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 07:28:52,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678133037] [2020-10-29 07:28:52,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 07:28:52,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:28:52,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 07:28:52,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 07:28:52,896 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 4 states. [2020-10-29 07:28:55,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:28:55,292 INFO L93 Difference]: Finished difference Result 703 states and 1247 transitions. [2020-10-29 07:28:55,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 07:28:55,294 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-29 07:28:55,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:28:55,316 INFO L225 Difference]: With dead ends: 703 [2020-10-29 07:28:55,316 INFO L226 Difference]: Without dead ends: 381 [2020-10-29 07:28:55,324 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 07:28:55,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2020-10-29 07:28:55,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 375. [2020-10-29 07:28:55,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-10-29 07:28:55,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 605 transitions. [2020-10-29 07:28:55,417 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 605 transitions. Word has length 15 [2020-10-29 07:28:55,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:28:55,418 INFO L481 AbstractCegarLoop]: Abstraction has 375 states and 605 transitions. [2020-10-29 07:28:55,419 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 07:28:55,419 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 605 transitions. [2020-10-29 07:28:55,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-29 07:28:55,423 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:28:55,424 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:28:55,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 07:28:55,425 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:28:55,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:28:55,426 INFO L82 PathProgramCache]: Analyzing trace with hash -485446679, now seen corresponding path program 1 times [2020-10-29 07:28:55,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:28:55,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [969630354] [2020-10-29 07:28:55,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:28:55,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:28:55,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:28:55,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:28:56,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:28:56,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-29 07:28:56,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:28:56,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1121 [2020-10-29 07:28:56,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:28:56,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:28:56,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:28:56,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:28:56,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-29 07:28:56,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:28:56,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:28:56,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:28:56,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:28:56,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:28:56,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:28:56,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:28:56,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 07:28:56,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:28:56,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:28:56,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:28:56,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:28:56,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:28:56,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:28:56,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:28:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:28:56,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:28:56,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:28:56,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 07:28:56,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:28:56,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-29 07:28:56,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:28:56,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:28:56,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:28:56,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:28:56,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-29 07:28:56,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:28:57,020 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 07:28:57,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [969630354] [2020-10-29 07:28:57,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 07:28:57,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 07:28:57,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233350109] [2020-10-29 07:28:57,023 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:28:57,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:28:57,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:28:57,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:28:57,025 INFO L87 Difference]: Start difference. First operand 375 states and 605 transitions. Second operand 7 states. [2020-10-29 07:28:59,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:28:59,656 INFO L93 Difference]: Finished difference Result 1142 states and 1884 transitions. [2020-10-29 07:28:59,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 07:28:59,657 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 84 [2020-10-29 07:28:59,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:28:59,664 INFO L225 Difference]: With dead ends: 1142 [2020-10-29 07:28:59,665 INFO L226 Difference]: Without dead ends: 773 [2020-10-29 07:28:59,667 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:28:59,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2020-10-29 07:28:59,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 567. [2020-10-29 07:28:59,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 567 states. [2020-10-29 07:28:59,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 876 transitions. [2020-10-29 07:28:59,739 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 876 transitions. Word has length 84 [2020-10-29 07:28:59,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:28:59,741 INFO L481 AbstractCegarLoop]: Abstraction has 567 states and 876 transitions. [2020-10-29 07:28:59,742 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:28:59,742 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 876 transitions. [2020-10-29 07:28:59,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-29 07:28:59,749 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:28:59,750 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-29 07:28:59,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 07:28:59,751 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:28:59,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:28:59,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1769086139, now seen corresponding path program 1 times [2020-10-29 07:28:59,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:28:59,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [599819866] [2020-10-29 07:28:59,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:28:59,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:28:59,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:28:59,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:00,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:00,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:29:00,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:29:00,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1062 [2020-10-29 07:29:00,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:00,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:00,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:29:00,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:29:00,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-29 07:29:00,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:29:00,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:29:01,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:01,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:01,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:01,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:29:01,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:01,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:29:01,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:01,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:01,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:29:01,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:29:01,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:29:01,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:29:01,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:29:01,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:01,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:01,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:01,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 07:29:01,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:01,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-29 07:29:01,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:01,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:01,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:29:01,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:29:01,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-29 07:29:01,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:29:01,354 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 07:29:01,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [599819866] [2020-10-29 07:29:01,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 07:29:01,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 07:29:01,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732435796] [2020-10-29 07:29:01,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:29:01,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:29:01,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:29:01,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:29:01,360 INFO L87 Difference]: Start difference. First operand 567 states and 876 transitions. Second operand 7 states. [2020-10-29 07:29:04,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:29:04,024 INFO L93 Difference]: Finished difference Result 1522 states and 2385 transitions. [2020-10-29 07:29:04,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 07:29:04,025 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 98 [2020-10-29 07:29:04,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:29:04,035 INFO L225 Difference]: With dead ends: 1522 [2020-10-29 07:29:04,035 INFO L226 Difference]: Without dead ends: 961 [2020-10-29 07:29:04,039 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:29:04,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2020-10-29 07:29:04,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 943. [2020-10-29 07:29:04,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 943 states. [2020-10-29 07:29:04,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1366 transitions. [2020-10-29 07:29:04,106 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1366 transitions. Word has length 98 [2020-10-29 07:29:04,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:29:04,108 INFO L481 AbstractCegarLoop]: Abstraction has 943 states and 1366 transitions. [2020-10-29 07:29:04,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:29:04,108 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1366 transitions. [2020-10-29 07:29:04,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-29 07:29:04,121 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:29:04,121 INFO L422 BasicCegarLoop]: trace histogram [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, 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 07:29:04,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 07:29:04,124 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:29:04,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:29:04,125 INFO L82 PathProgramCache]: Analyzing trace with hash -2066699960, now seen corresponding path program 1 times [2020-10-29 07:29:04,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:29:04,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1720352167] [2020-10-29 07:29:04,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:29:04,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:04,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:04,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:04,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:05,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:07,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:07,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-29 07:29:07,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:29:07,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2984 [2020-10-29 07:29:07,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:07,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:07,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:29:07,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-29 07:29:07,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 07:29:07,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:29:07,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:29:07,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:07,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:07,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:07,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:29:07,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:07,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 07:29:07,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:07,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:07,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:29:07,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:29:07,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:29:07,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:29:07,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:29:07,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:07,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:07,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:07,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 07:29:07,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:07,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 07:29:07,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:07,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:07,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:29:07,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:29:07,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-29 07:29:07,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:29:07,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 07:29:07,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:07,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:07,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:07,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 07:29:07,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:07,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-29 07:29:07,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:07,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:07,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:29:07,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:29:07,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-29 07:29:07,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:29:07,767 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 83 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 07:29:07,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1720352167] [2020-10-29 07:29:07,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:29:07,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:29:07,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545746112] [2020-10-29 07:29:07,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:29:07,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:29:07,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:29:07,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:29:07,771 INFO L87 Difference]: Start difference. First operand 943 states and 1366 transitions. Second operand 7 states. [2020-10-29 07:29:11,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:29:11,150 INFO L93 Difference]: Finished difference Result 2548 states and 4111 transitions. [2020-10-29 07:29:11,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 07:29:11,158 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 170 [2020-10-29 07:29:11,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:29:11,175 INFO L225 Difference]: With dead ends: 2548 [2020-10-29 07:29:11,175 INFO L226 Difference]: Without dead ends: 1611 [2020-10-29 07:29:11,179 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-29 07:29:11,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2020-10-29 07:29:11,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1509. [2020-10-29 07:29:11,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1509 states. [2020-10-29 07:29:11,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 2040 transitions. [2020-10-29 07:29:11,262 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 2040 transitions. Word has length 170 [2020-10-29 07:29:11,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:29:11,263 INFO L481 AbstractCegarLoop]: Abstraction has 1509 states and 2040 transitions. [2020-10-29 07:29:11,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:29:11,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 2040 transitions. [2020-10-29 07:29:11,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-29 07:29:11,266 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:29:11,267 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:29:11,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 07:29:11,267 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:29:11,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:29:11,268 INFO L82 PathProgramCache]: Analyzing trace with hash -152071958, now seen corresponding path program 1 times [2020-10-29 07:29:11,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:29:11,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [159207907] [2020-10-29 07:29:11,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:29:11,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:11,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:11,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:12,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:12,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:15,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:15,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-29 07:29:15,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:29:15,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4453 [2020-10-29 07:29:15,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:15,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:15,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:29:15,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-29 07:29:15,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 07:29:15,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:29:15,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:29:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:15,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:15,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:15,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:29:15,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:15,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 07:29:15,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:15,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:15,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:29:15,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:29:15,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:29:15,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:29:15,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:29:15,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:15,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:15,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:15,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 07:29:15,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:15,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 07:29:15,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:15,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:15,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:29:15,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:29:15,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-29 07:29:15,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:29:15,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 07:29:15,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:15,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:16,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:16,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 07:29:16,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:16,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-29 07:29:16,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:16,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:16,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:29:16,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:29:16,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-29 07:29:16,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:29:16,341 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 84 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 07:29:16,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [159207907] [2020-10-29 07:29:16,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:29:16,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:29:16,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824850315] [2020-10-29 07:29:16,343 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:29:16,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:29:16,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:29:16,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:29:16,344 INFO L87 Difference]: Start difference. First operand 1509 states and 2040 transitions. Second operand 7 states. [2020-10-29 07:29:19,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:29:19,142 INFO L93 Difference]: Finished difference Result 3030 states and 4285 transitions. [2020-10-29 07:29:19,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 07:29:19,148 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 171 [2020-10-29 07:29:19,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:29:19,156 INFO L225 Difference]: With dead ends: 3030 [2020-10-29 07:29:19,156 INFO L226 Difference]: Without dead ends: 1149 [2020-10-29 07:29:19,161 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:29:19,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1149 states. [2020-10-29 07:29:19,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1149 to 1127. [2020-10-29 07:29:19,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1127 states. [2020-10-29 07:29:19,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 1299 transitions. [2020-10-29 07:29:19,205 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 1299 transitions. Word has length 171 [2020-10-29 07:29:19,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:29:19,206 INFO L481 AbstractCegarLoop]: Abstraction has 1127 states and 1299 transitions. [2020-10-29 07:29:19,206 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:29:19,206 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 1299 transitions. [2020-10-29 07:29:19,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2020-10-29 07:29:19,213 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:29:19,213 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 07:29:19,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 07:29:19,214 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:29:19,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:29:19,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1606541591, now seen corresponding path program 1 times [2020-10-29 07:29:19,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:29:19,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [58570742] [2020-10-29 07:29:19,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:29:19,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:19,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:19,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:19,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:22,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:22,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:24,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:24,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 400 [2020-10-29 07:29:24,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:29:24,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-29 07:29:24,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:24,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:24,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 07:29:24,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:29:24,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 297 [2020-10-29 07:29:24,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:29:24,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:29:24,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:24,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:24,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:24,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:29:24,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:24,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:29:24,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:24,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:24,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:29:24,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:29:24,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:29:24,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:29:24,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:29:24,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:24,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:24,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:24,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:29:24,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:24,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-29 07:29:24,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:24,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:24,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:29:24,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:29:24,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 07:29:24,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:29:24,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:29:24,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:24,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:25,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:25,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:29:25,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:25,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 310 [2020-10-29 07:29:25,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:25,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:25,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:29:25,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:29:25,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:29:25,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:29:25,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2020-10-29 07:29:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:25,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:25,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:25,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:29:25,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:25,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 07:29:25,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:25,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:25,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:29:25,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 07:29:25,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:29:25,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:29:25,930 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 129 proven. 152 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-29 07:29:25,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [58570742] [2020-10-29 07:29:25,932 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:29:25,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 07:29:25,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014450277] [2020-10-29 07:29:25,933 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 07:29:25,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:29:25,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 07:29:25,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:29:25,934 INFO L87 Difference]: Start difference. First operand 1127 states and 1299 transitions. Second operand 8 states. [2020-10-29 07:29:27,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:29:27,824 INFO L93 Difference]: Finished difference Result 2642 states and 3038 transitions. [2020-10-29 07:29:27,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 07:29:27,825 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 384 [2020-10-29 07:29:27,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:29:27,834 INFO L225 Difference]: With dead ends: 2642 [2020-10-29 07:29:27,835 INFO L226 Difference]: Without dead ends: 1521 [2020-10-29 07:29:27,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-10-29 07:29:27,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2020-10-29 07:29:27,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1495. [2020-10-29 07:29:27,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1495 states. [2020-10-29 07:29:27,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1680 transitions. [2020-10-29 07:29:27,905 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1680 transitions. Word has length 384 [2020-10-29 07:29:27,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:29:27,906 INFO L481 AbstractCegarLoop]: Abstraction has 1495 states and 1680 transitions. [2020-10-29 07:29:27,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 07:29:27,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1680 transitions. [2020-10-29 07:29:27,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2020-10-29 07:29:27,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:29:27,915 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:29:27,915 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 07:29:27,915 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:29:27,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:29:27,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1920172641, now seen corresponding path program 1 times [2020-10-29 07:29:27,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:29:27,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1262124730] [2020-10-29 07:29:27,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:29:28,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:28,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:28,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:28,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:29,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:32,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:33,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:33,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 423 [2020-10-29 07:29:33,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:29:33,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-29 07:29:33,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:33,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:33,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:29:33,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-10-29 07:29:33,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-29 07:29:33,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 07:29:33,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:29:33,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:33,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:33,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:33,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:29:33,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:33,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 07:29:33,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:33,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:33,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:29:33,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:29:33,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:29:33,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:29:33,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:29:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:33,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:33,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:33,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 07:29:33,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:33,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-29 07:29:33,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:33,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:33,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:29:33,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:29:33,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-29 07:29:33,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:29:33,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-29 07:29:33,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:33,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:33,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:33,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:29:33,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:33,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-29 07:29:33,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:33,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:33,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:29:33,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:29:33,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:29:33,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:29:34,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2020-10-29 07:29:34,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:34,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:34,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:34,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:29:34,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:34,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 07:29:34,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:34,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:34,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:29:34,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 07:29:34,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:29:34,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:29:35,181 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 155 proven. 79 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-10-29 07:29:35,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1262124730] [2020-10-29 07:29:35,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:29:35,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 07:29:35,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613347277] [2020-10-29 07:29:35,183 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 07:29:35,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:29:35,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 07:29:35,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:29:35,185 INFO L87 Difference]: Start difference. First operand 1495 states and 1680 transitions. Second operand 8 states. [2020-10-29 07:29:38,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:29:38,320 INFO L93 Difference]: Finished difference Result 4102 states and 4772 transitions. [2020-10-29 07:29:38,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 07:29:38,325 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 407 [2020-10-29 07:29:38,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:29:38,339 INFO L225 Difference]: With dead ends: 4102 [2020-10-29 07:29:38,339 INFO L226 Difference]: Without dead ends: 2427 [2020-10-29 07:29:38,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-29 07:29:38,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2427 states. [2020-10-29 07:29:38,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2427 to 1875. [2020-10-29 07:29:38,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1875 states. [2020-10-29 07:29:38,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1875 states to 1875 states and 2119 transitions. [2020-10-29 07:29:38,444 INFO L78 Accepts]: Start accepts. Automaton has 1875 states and 2119 transitions. Word has length 407 [2020-10-29 07:29:38,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:29:38,446 INFO L481 AbstractCegarLoop]: Abstraction has 1875 states and 2119 transitions. [2020-10-29 07:29:38,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 07:29:38,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1875 states and 2119 transitions. [2020-10-29 07:29:38,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2020-10-29 07:29:38,461 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:29:38,462 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-29 07:29:38,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 07:29:38,463 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:29:38,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:29:38,463 INFO L82 PathProgramCache]: Analyzing trace with hash 143014842, now seen corresponding path program 1 times [2020-10-29 07:29:38,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:29:38,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1247364774] [2020-10-29 07:29:38,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:29:38,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:38,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:38,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:39,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:39,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:43,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:43,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 602 [2020-10-29 07:29:43,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:29:43,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-29 07:29:43,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:43,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:43,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:29:43,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 322 [2020-10-29 07:29:43,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-29 07:29:43,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:29:43,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:29:43,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:43,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:43,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:43,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:29:43,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:43,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 07:29:43,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:43,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:43,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:29:43,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:29:43,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:29:43,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:29:43,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:29:43,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:43,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:43,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:43,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 07:29:43,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:43,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 07:29:43,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:43,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:43,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:29:43,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:29:43,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:29:43,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:29:43,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-29 07:29:43,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:43,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:44,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:44,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:29:44,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:44,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-29 07:29:44,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:44,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:44,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:29:44,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:29:44,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-29 07:29:44,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:29:44,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2020-10-29 07:29:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:44,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:44,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:44,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:29:44,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:44,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-10-29 07:29:44,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:44,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:44,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:29:44,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:29:44,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:29:44,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:29:44,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 497 [2020-10-29 07:29:44,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:44,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:44,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:44,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:29:44,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:44,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 07:29:44,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:44,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:44,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:29:44,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 07:29:44,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:29:44,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:29:44,855 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 345 proven. 79 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-10-29 07:29:44,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1247364774] [2020-10-29 07:29:44,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:29:44,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:29:44,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889659070] [2020-10-29 07:29:44,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:29:44,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:29:44,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:29:44,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:29:44,858 INFO L87 Difference]: Start difference. First operand 1875 states and 2119 transitions. Second operand 7 states. [2020-10-29 07:29:47,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:29:47,037 INFO L93 Difference]: Finished difference Result 4681 states and 5418 transitions. [2020-10-29 07:29:47,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:29:47,038 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 584 [2020-10-29 07:29:47,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:29:47,055 INFO L225 Difference]: With dead ends: 4681 [2020-10-29 07:29:47,055 INFO L226 Difference]: Without dead ends: 3178 [2020-10-29 07:29:47,061 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:29:47,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3178 states. [2020-10-29 07:29:47,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3178 to 2623. [2020-10-29 07:29:47,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2623 states. [2020-10-29 07:29:47,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2623 states to 2623 states and 3049 transitions. [2020-10-29 07:29:47,150 INFO L78 Accepts]: Start accepts. Automaton has 2623 states and 3049 transitions. Word has length 584 [2020-10-29 07:29:47,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:29:47,152 INFO L481 AbstractCegarLoop]: Abstraction has 2623 states and 3049 transitions. [2020-10-29 07:29:47,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:29:47,152 INFO L276 IsEmpty]: Start isEmpty. Operand 2623 states and 3049 transitions. [2020-10-29 07:29:47,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 661 [2020-10-29 07:29:47,172 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:29:47,173 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:29:47,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 07:29:47,174 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:29:47,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:29:47,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1505995573, now seen corresponding path program 1 times [2020-10-29 07:29:47,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:29:47,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [78976127] [2020-10-29 07:29:47,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:29:47,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:47,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:47,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:47,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:52,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:52,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 680 [2020-10-29 07:29:52,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:29:52,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 07:29:52,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:52,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:52,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:29:52,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-10-29 07:29:52,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:29:52,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:29:52,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:29:52,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:52,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:52,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:52,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:29:52,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:52,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 07:29:52,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:52,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:52,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:29:52,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:29:52,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:29:52,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:29:52,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:29:52,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:52,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:52,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:52,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 07:29:52,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:52,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-29 07:29:52,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:52,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:52,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:29:52,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:29:52,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-29 07:29:52,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:29:52,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-29 07:29:52,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:52,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:52,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:52,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:29:52,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:52,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-29 07:29:52,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:52,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:52,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:29:52,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:29:52,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-29 07:29:52,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:29:52,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2020-10-29 07:29:52,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:52,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:52,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:52,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:29:52,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:52,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:29:52,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:52,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:52,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:29:52,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-29 07:29:52,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:29:52,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:29:53,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2020-10-29 07:29:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:53,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:53,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:53,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:29:53,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:53,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-29 07:29:53,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:53,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:53,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:29:53,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-29 07:29:53,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:29:53,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:29:53,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2020-10-29 07:29:53,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:53,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:53,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:29:53,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:29:53,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:29:53,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 07:29:53,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:29:53,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:29:53,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:29:53,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 07:29:53,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:29:53,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:29:53,592 INFO L134 CoverageAnalysis]: Checked inductivity of 1022 backedges. 177 proven. 326 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2020-10-29 07:29:53,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [78976127] [2020-10-29 07:29:53,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:29:53,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:29:53,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618839574] [2020-10-29 07:29:53,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:29:53,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:29:53,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:29:53,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:29:53,596 INFO L87 Difference]: Start difference. First operand 2623 states and 3049 transitions. Second operand 7 states. [2020-10-29 07:29:55,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:29:55,876 INFO L93 Difference]: Finished difference Result 5254 states and 6190 transitions. [2020-10-29 07:29:55,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:29:55,877 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 660 [2020-10-29 07:29:55,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:29:55,890 INFO L225 Difference]: With dead ends: 5254 [2020-10-29 07:29:55,890 INFO L226 Difference]: Without dead ends: 2811 [2020-10-29 07:29:55,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 1 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 07:29:55,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2811 states. [2020-10-29 07:29:55,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2811 to 2807. [2020-10-29 07:29:55,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2807 states. [2020-10-29 07:29:55,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2807 states to 2807 states and 3217 transitions. [2020-10-29 07:29:55,977 INFO L78 Accepts]: Start accepts. Automaton has 2807 states and 3217 transitions. Word has length 660 [2020-10-29 07:29:55,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:29:55,978 INFO L481 AbstractCegarLoop]: Abstraction has 2807 states and 3217 transitions. [2020-10-29 07:29:55,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:29:55,978 INFO L276 IsEmpty]: Start isEmpty. Operand 2807 states and 3217 transitions. [2020-10-29 07:29:55,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 687 [2020-10-29 07:29:55,986 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:29:55,986 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 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] [2020-10-29 07:29:55,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 07:29:55,987 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:29:55,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:29:55,987 INFO L82 PathProgramCache]: Analyzing trace with hash -531133132, now seen corresponding path program 1 times [2020-10-29 07:29:55,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:29:55,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [28144017] [2020-10-29 07:29:55,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:29:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:29:56,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:56,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:56,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:57,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:29:58,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:01,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:01,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 708 [2020-10-29 07:30:01,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:30:01,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-29 07:30:01,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:01,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:01,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:30:01,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-29 07:30:01,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 198 [2020-10-29 07:30:01,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:01,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:30:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:01,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:01,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:01,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:30:01,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:01,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:30:01,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:01,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:01,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:01,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:01,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:01,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:01,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:30:01,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:01,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:01,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:01,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:30:01,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:01,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 07:30:01,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:01,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:01,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:01,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:01,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:01,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:01,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:30:01,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:01,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:01,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:01,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:30:01,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:01,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-29 07:30:01,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:01,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:01,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:30:01,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:01,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-29 07:30:01,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:01,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:30:01,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:01,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:01,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:01,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:30:01,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:01,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-29 07:30:01,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:01,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:01,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:30:01,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:30:01,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-29 07:30:01,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:01,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:30:01,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:01,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:01,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:01,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:30:01,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:01,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-29 07:30:01,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:01,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:01,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:30:01,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:30:01,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 07:30:01,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:01,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2020-10-29 07:30:01,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:01,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:01,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:01,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:30:01,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:01,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-29 07:30:01,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:01,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:01,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:01,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-29 07:30:01,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:01,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:01,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 07:30:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:01,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:01,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:01,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:30:01,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:01,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 07:30:01,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:01,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:01,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:01,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 07:30:01,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:01,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:02,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 501 proven. 339 refuted. 0 times theorem prover too weak. 566 trivial. 0 not checked. [2020-10-29 07:30:02,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [28144017] [2020-10-29 07:30:02,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:30:02,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 07:30:02,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167720101] [2020-10-29 07:30:02,234 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 07:30:02,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:30:02,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 07:30:02,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:30:02,235 INFO L87 Difference]: Start difference. First operand 2807 states and 3217 transitions. Second operand 8 states. [2020-10-29 07:30:04,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:30:04,277 INFO L93 Difference]: Finished difference Result 6542 states and 7571 transitions. [2020-10-29 07:30:04,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 07:30:04,277 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 686 [2020-10-29 07:30:04,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:30:04,296 INFO L225 Difference]: With dead ends: 6542 [2020-10-29 07:30:04,296 INFO L226 Difference]: Without dead ends: 3923 [2020-10-29 07:30:04,303 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-29 07:30:04,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3923 states. [2020-10-29 07:30:04,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3923 to 3735. [2020-10-29 07:30:04,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3735 states. [2020-10-29 07:30:04,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3735 states to 3735 states and 4254 transitions. [2020-10-29 07:30:04,409 INFO L78 Accepts]: Start accepts. Automaton has 3735 states and 4254 transitions. Word has length 686 [2020-10-29 07:30:04,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:30:04,410 INFO L481 AbstractCegarLoop]: Abstraction has 3735 states and 4254 transitions. [2020-10-29 07:30:04,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 07:30:04,410 INFO L276 IsEmpty]: Start isEmpty. Operand 3735 states and 4254 transitions. [2020-10-29 07:30:04,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 747 [2020-10-29 07:30:04,419 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:30:04,420 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:30:04,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 07:30:04,420 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:30:04,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:30:04,421 INFO L82 PathProgramCache]: Analyzing trace with hash -294141892, now seen corresponding path program 1 times [2020-10-29 07:30:04,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:30:04,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1188835255] [2020-10-29 07:30:04,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:30:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:04,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:04,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:06,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:06,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:06,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:09,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:09,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 768 [2020-10-29 07:30:09,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:30:09,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-10-29 07:30:09,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:09,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:09,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 07:30:09,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 488 [2020-10-29 07:30:09,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 07:30:09,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:09,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:30:09,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:09,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:09,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:09,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:30:09,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:09,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:30:09,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:09,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:09,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:09,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:09,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:09,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:09,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:30:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:09,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:09,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:09,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:30:09,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:09,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 07:30:09,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:09,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:09,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:09,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:09,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:09,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:09,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:30:09,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:09,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:09,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:09,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:30:09,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:09,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:30:09,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:09,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:09,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:09,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:09,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:09,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:09,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:30:09,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:09,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:09,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:09,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:30:09,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:09,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 07:30:09,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:09,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:09,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:09,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:09,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:09,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:09,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2020-10-29 07:30:09,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:09,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:09,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:09,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:30:09,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:09,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 07:30:09,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:09,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:09,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:30:09,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:09,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 07:30:09,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:09,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2020-10-29 07:30:09,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:09,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:10,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:10,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:30:10,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:10,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-29 07:30:10,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:10,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:10,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 07:30:10,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:30:10,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:30:10,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:10,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 659 [2020-10-29 07:30:10,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:10,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:10,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:10,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:10,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:30:10,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:30:10,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-29 07:30:10,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:10,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:10,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:30:10,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:30:10,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 07:30:10,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:10,839 INFO L134 CoverageAnalysis]: Checked inductivity of 1466 backedges. 815 proven. 91 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2020-10-29 07:30:10,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1188835255] [2020-10-29 07:30:10,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:30:10,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-29 07:30:10,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364018462] [2020-10-29 07:30:10,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 07:30:10,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:30:10,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 07:30:10,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-29 07:30:10,842 INFO L87 Difference]: Start difference. First operand 3735 states and 4254 transitions. Second operand 10 states. [2020-10-29 07:30:14,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:30:14,431 INFO L93 Difference]: Finished difference Result 8766 states and 10189 transitions. [2020-10-29 07:30:14,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-29 07:30:14,432 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 746 [2020-10-29 07:30:14,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:30:14,455 INFO L225 Difference]: With dead ends: 8766 [2020-10-29 07:30:14,455 INFO L226 Difference]: Without dead ends: 5403 [2020-10-29 07:30:14,463 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=130, Invalid=376, Unknown=0, NotChecked=0, Total=506 [2020-10-29 07:30:14,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5403 states. [2020-10-29 07:30:14,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5403 to 5033. [2020-10-29 07:30:14,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5033 states. [2020-10-29 07:30:14,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5033 states to 5033 states and 5874 transitions. [2020-10-29 07:30:14,600 INFO L78 Accepts]: Start accepts. Automaton has 5033 states and 5874 transitions. Word has length 746 [2020-10-29 07:30:14,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:30:14,601 INFO L481 AbstractCegarLoop]: Abstraction has 5033 states and 5874 transitions. [2020-10-29 07:30:14,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 07:30:14,602 INFO L276 IsEmpty]: Start isEmpty. Operand 5033 states and 5874 transitions. [2020-10-29 07:30:14,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 859 [2020-10-29 07:30:14,614 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:30:14,615 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:30:14,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 07:30:14,615 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:30:14,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:30:14,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1021208169, now seen corresponding path program 1 times [2020-10-29 07:30:14,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:30:14,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [673142094] [2020-10-29 07:30:14,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:30:14,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:14,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:14,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:15,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:19,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:19,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 882 [2020-10-29 07:30:19,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:30:19,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5099 [2020-10-29 07:30:19,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:19,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:19,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:30:19,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-29 07:30:19,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:30:19,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:30:19,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:30:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:19,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:19,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:19,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:30:19,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:19,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 07:30:19,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:19,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:19,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:19,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:19,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:19,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:19,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:30:20,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:20,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:20,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:20,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:30:20,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:20,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 07:30:20,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:20,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:20,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:20,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:20,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:20,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:20,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:30:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:20,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:20,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:20,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:30:20,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:20,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-29 07:30:20,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:20,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:20,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:30:20,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:20,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-29 07:30:20,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:20,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:30:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:20,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:20,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:20,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:30:20,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:20,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-10-29 07:30:20,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:20,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:20,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:30:20,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:30:20,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-29 07:30:20,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:20,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2020-10-29 07:30:20,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:20,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:20,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:20,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:30:20,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:20,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 07:30:20,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:20,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:20,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:20,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-29 07:30:20,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:20,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:20,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2020-10-29 07:30:20,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:20,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:20,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:20,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:30:20,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:20,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-29 07:30:20,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:20,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:20,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:20,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-29 07:30:20,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:20,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:20,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 659 [2020-10-29 07:30:20,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:20,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:20,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:20,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 07:30:20,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:20,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-29 07:30:20,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:20,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:20,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:20,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-29 07:30:20,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:20,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:20,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 771 [2020-10-29 07:30:20,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:21,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:21,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:21,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:30:21,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:21,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 07:30:21,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:21,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:21,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:21,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 07:30:21,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:21,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:21,721 INFO L134 CoverageAnalysis]: Checked inductivity of 2072 backedges. 299 proven. 435 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2020-10-29 07:30:21,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [673142094] [2020-10-29 07:30:21,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:30:21,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:30:21,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915126734] [2020-10-29 07:30:21,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:30:21,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:30:21,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:30:21,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:30:21,724 INFO L87 Difference]: Start difference. First operand 5033 states and 5874 transitions. Second operand 7 states. [2020-10-29 07:30:23,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:30:23,482 INFO L93 Difference]: Finished difference Result 10424 states and 12251 transitions. [2020-10-29 07:30:23,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 07:30:23,487 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 858 [2020-10-29 07:30:23,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:30:23,510 INFO L225 Difference]: With dead ends: 10424 [2020-10-29 07:30:23,510 INFO L226 Difference]: Without dead ends: 5581 [2020-10-29 07:30:23,522 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-29 07:30:23,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5581 states. [2020-10-29 07:30:23,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5581 to 5581. [2020-10-29 07:30:23,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5581 states. [2020-10-29 07:30:23,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5581 states to 5581 states and 6500 transitions. [2020-10-29 07:30:23,671 INFO L78 Accepts]: Start accepts. Automaton has 5581 states and 6500 transitions. Word has length 858 [2020-10-29 07:30:23,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:30:23,672 INFO L481 AbstractCegarLoop]: Abstraction has 5581 states and 6500 transitions. [2020-10-29 07:30:23,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:30:23,672 INFO L276 IsEmpty]: Start isEmpty. Operand 5581 states and 6500 transitions. [2020-10-29 07:30:23,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 882 [2020-10-29 07:30:23,684 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:30:23,685 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:30:23,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 07:30:23,685 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:30:23,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:30:23,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1954982351, now seen corresponding path program 1 times [2020-10-29 07:30:23,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:30:23,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [658569775] [2020-10-29 07:30:23,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:30:23,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:23,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:24,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:24,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:26,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:28,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:28,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 905 [2020-10-29 07:30:28,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:30:28,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-29 07:30:28,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:28,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:28,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:30:28,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-29 07:30:28,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-29 07:30:28,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:28,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:30:28,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:28,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:29,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:29,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:30:29,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:29,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:30:29,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:29,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:29,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:29,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:29,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:29,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:29,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:30:29,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:29,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:29,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:29,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:30:29,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:29,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 07:30:29,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:29,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:29,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:29,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:29,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:29,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:29,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:30:29,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:29,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:29,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:29,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:30:29,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:29,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 07:30:29,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:29,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:29,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:29,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:29,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:29,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:29,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:30:29,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:29,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:29,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:29,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:30:29,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:29,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:30:29,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:29,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:29,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:29,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:29,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:29,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:29,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:30:29,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:29,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:29,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:29,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 07:30:29,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:29,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-29 07:30:29,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:29,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:29,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:30:29,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:29,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-29 07:30:29,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:29,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-29 07:30:29,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:29,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:29,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:29,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:30:29,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:29,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-29 07:30:29,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:29,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:29,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:30:29,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:30:29,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:30:29,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:29,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 682 [2020-10-29 07:30:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:29,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:29,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:29,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 07:30:29,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:29,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 07:30:29,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:29,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:29,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:29,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-29 07:30:29,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:29,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:29,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-29 07:30:29,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:29,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:29,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:29,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:30:29,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:29,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 07:30:29,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:29,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:29,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:29,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 07:30:29,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:29,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:30,075 INFO L134 CoverageAnalysis]: Checked inductivity of 2243 backedges. 579 proven. 188 refuted. 0 times theorem prover too weak. 1476 trivial. 0 not checked. [2020-10-29 07:30:30,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [658569775] [2020-10-29 07:30:30,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:30:30,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:30:30,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546761806] [2020-10-29 07:30:30,077 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:30:30,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:30:30,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:30:30,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:30:30,077 INFO L87 Difference]: Start difference. First operand 5581 states and 6500 transitions. Second operand 7 states. [2020-10-29 07:30:31,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:30:31,996 INFO L93 Difference]: Finished difference Result 11347 states and 13209 transitions. [2020-10-29 07:30:31,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 07:30:31,997 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 881 [2020-10-29 07:30:31,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:30:32,015 INFO L225 Difference]: With dead ends: 11347 [2020-10-29 07:30:32,015 INFO L226 Difference]: Without dead ends: 5956 [2020-10-29 07:30:32,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:30:32,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5956 states. [2020-10-29 07:30:32,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5956 to 5581. [2020-10-29 07:30:32,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5581 states. [2020-10-29 07:30:32,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5581 states to 5581 states and 6500 transitions. [2020-10-29 07:30:32,155 INFO L78 Accepts]: Start accepts. Automaton has 5581 states and 6500 transitions. Word has length 881 [2020-10-29 07:30:32,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:30:32,157 INFO L481 AbstractCegarLoop]: Abstraction has 5581 states and 6500 transitions. [2020-10-29 07:30:32,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:30:32,157 INFO L276 IsEmpty]: Start isEmpty. Operand 5581 states and 6500 transitions. [2020-10-29 07:30:32,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 958 [2020-10-29 07:30:32,171 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:30:32,172 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:30:32,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 07:30:32,172 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:30:32,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:30:32,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1090321580, now seen corresponding path program 1 times [2020-10-29 07:30:32,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:30:32,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [411845434] [2020-10-29 07:30:32,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:30:32,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:32,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:32,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:34,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:35,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:37,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:37,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 983 [2020-10-29 07:30:37,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:30:37,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-29 07:30:37,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:37,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:37,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:30:37,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 884 [2020-10-29 07:30:37,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-29 07:30:37,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:37,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:30:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:37,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:37,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:37,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:30:37,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:37,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 07:30:37,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:37,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:37,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:37,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:37,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:37,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:37,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:30:37,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:37,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:37,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:37,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:30:37,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:37,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 07:30:37,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:37,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:37,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:37,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:37,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:37,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:37,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:30:37,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:37,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:37,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:37,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:30:37,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:37,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 07:30:37,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:37,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:37,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:37,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:37,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:37,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:37,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:30:37,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:37,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:37,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:37,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:30:37,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:37,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 07:30:37,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:37,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:37,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:37,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:37,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:37,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:37,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:30:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:37,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:37,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:37,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 07:30:37,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:37,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 07:30:37,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:37,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:37,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:37,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:37,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:37,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:37,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-29 07:30:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:37,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:37,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:37,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:30:37,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:37,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 07:30:37,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:37,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:37,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:37,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:37,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:37,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:37,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-10-29 07:30:37,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:37,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:37,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:37,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:30:37,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:37,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 07:30:37,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:37,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:37,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:37,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:37,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:37,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:38,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 758 [2020-10-29 07:30:38,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:38,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:38,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:38,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 07:30:38,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:38,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-29 07:30:38,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:38,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:38,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:30:38,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:38,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-29 07:30:38,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:38,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 870 [2020-10-29 07:30:38,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:38,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:38,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:38,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:30:38,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:38,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-29 07:30:38,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:38,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:38,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:30:38,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:30:38,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 07:30:38,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:38,774 INFO L134 CoverageAnalysis]: Checked inductivity of 2782 backedges. 621 proven. 2 refuted. 0 times theorem prover too weak. 2159 trivial. 0 not checked. [2020-10-29 07:30:38,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [411845434] [2020-10-29 07:30:38,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:30:38,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:30:38,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224479923] [2020-10-29 07:30:38,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:30:38,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:30:38,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:30:38,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:30:38,776 INFO L87 Difference]: Start difference. First operand 5581 states and 6500 transitions. Second operand 7 states. [2020-10-29 07:30:40,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:30:40,911 INFO L93 Difference]: Finished difference Result 12104 states and 14282 transitions. [2020-10-29 07:30:40,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:30:40,918 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 957 [2020-10-29 07:30:40,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:30:40,940 INFO L225 Difference]: With dead ends: 12104 [2020-10-29 07:30:40,940 INFO L226 Difference]: Without dead ends: 6529 [2020-10-29 07:30:40,952 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:30:40,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6529 states. [2020-10-29 07:30:41,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6529 to 6135. [2020-10-29 07:30:41,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6135 states. [2020-10-29 07:30:41,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6135 states to 6135 states and 7106 transitions. [2020-10-29 07:30:41,089 INFO L78 Accepts]: Start accepts. Automaton has 6135 states and 7106 transitions. Word has length 957 [2020-10-29 07:30:41,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:30:41,091 INFO L481 AbstractCegarLoop]: Abstraction has 6135 states and 7106 transitions. [2020-10-29 07:30:41,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:30:41,091 INFO L276 IsEmpty]: Start isEmpty. Operand 6135 states and 7106 transitions. [2020-10-29 07:30:41,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1003 [2020-10-29 07:30:41,105 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:30:41,106 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:30:41,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 07:30:41,106 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:30:41,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:30:41,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1720876586, now seen corresponding path program 1 times [2020-10-29 07:30:41,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:30:41,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [673053905] [2020-10-29 07:30:41,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:30:41,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:41,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:41,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:42,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:46,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:46,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1028 [2020-10-29 07:30:46,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:30:46,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-29 07:30:46,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:46,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:46,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:30:46,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-29 07:30:46,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-29 07:30:46,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:46,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:30:46,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:46,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:46,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:46,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:30:46,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:46,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 07:30:46,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:46,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:46,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:46,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:46,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:46,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:46,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:30:46,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:46,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:46,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:46,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:30:46,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:46,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:30:46,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:46,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:46,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:46,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:46,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:46,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:46,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:30:46,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:46,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:46,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:46,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:30:46,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:46,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:30:46,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:46,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:46,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:46,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:46,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:46,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:46,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:30:46,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:46,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:46,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:46,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:30:46,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:46,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:30:46,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:46,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:46,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:46,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:46,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:46,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:46,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:30:46,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:46,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:46,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:46,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 07:30:46,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:46,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-29 07:30:46,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:46,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:46,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:30:46,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:46,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-29 07:30:46,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:46,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-29 07:30:46,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:46,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:46,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:46,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:30:46,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:46,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 07:30:46,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:46,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:46,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:30:46,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:30:46,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 07:30:46,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:46,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-10-29 07:30:47,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:47,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:47,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:47,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:30:47,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:47,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-29 07:30:47,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:47,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:47,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:47,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-29 07:30:47,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:47,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:47,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 758 [2020-10-29 07:30:47,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:47,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:47,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:47,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-29 07:30:47,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:47,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 07:30:47,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:47,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:47,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:47,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-29 07:30:47,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:47,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:47,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 853 [2020-10-29 07:30:47,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:47,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:47,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:47,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 07:30:47,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:47,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 07:30:47,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:47,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:47,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:47,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 07:30:47,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:47,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:47,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2937 backedges. 411 proven. 221 refuted. 0 times theorem prover too weak. 2305 trivial. 0 not checked. [2020-10-29 07:30:47,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [673053905] [2020-10-29 07:30:47,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:30:47,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:30:47,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893476328] [2020-10-29 07:30:47,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:30:47,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:30:47,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:30:47,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:30:47,803 INFO L87 Difference]: Start difference. First operand 6135 states and 7106 transitions. Second operand 7 states. [2020-10-29 07:30:49,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:30:49,868 INFO L93 Difference]: Finished difference Result 12990 states and 15092 transitions. [2020-10-29 07:30:49,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 07:30:49,868 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1002 [2020-10-29 07:30:49,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:30:49,890 INFO L225 Difference]: With dead ends: 12990 [2020-10-29 07:30:49,890 INFO L226 Difference]: Without dead ends: 7045 [2020-10-29 07:30:49,905 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-29 07:30:49,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7045 states. [2020-10-29 07:30:50,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7045 to 6681. [2020-10-29 07:30:50,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6681 states. [2020-10-29 07:30:50,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6681 states to 6681 states and 7579 transitions. [2020-10-29 07:30:50,063 INFO L78 Accepts]: Start accepts. Automaton has 6681 states and 7579 transitions. Word has length 1002 [2020-10-29 07:30:50,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:30:50,063 INFO L481 AbstractCegarLoop]: Abstraction has 6681 states and 7579 transitions. [2020-10-29 07:30:50,063 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:30:50,064 INFO L276 IsEmpty]: Start isEmpty. Operand 6681 states and 7579 transitions. [2020-10-29 07:30:50,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1014 [2020-10-29 07:30:50,081 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:30:50,081 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:30:50,082 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 07:30:50,082 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:30:50,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:30:50,082 INFO L82 PathProgramCache]: Analyzing trace with hash -131807932, now seen corresponding path program 1 times [2020-10-29 07:30:50,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:30:50,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1028070027] [2020-10-29 07:30:50,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:30:50,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:50,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:50,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:50,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:51,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:55,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:55,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1039 [2020-10-29 07:30:55,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:30:55,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-29 07:30:55,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:55,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:55,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:30:55,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 343 [2020-10-29 07:30:55,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:30:55,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:55,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:30:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:55,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:55,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:55,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:30:55,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:55,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 07:30:55,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:55,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:55,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:55,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:55,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:55,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:55,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:30:55,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:55,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:55,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:55,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:30:55,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:55,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 07:30:55,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:55,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:55,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:55,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:55,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:55,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:55,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:30:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:55,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:55,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:55,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:30:55,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:55,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 07:30:55,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:55,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:55,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:55,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:55,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:55,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:55,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:30:55,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:55,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:55,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:55,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:30:55,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:55,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-29 07:30:55,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:55,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:55,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:30:55,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:30:55,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-29 07:30:55,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:55,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-29 07:30:55,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:55,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:55,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:55,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:30:55,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:55,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-29 07:30:55,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:55,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:55,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:30:55,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:30:55,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-29 07:30:55,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:56,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2020-10-29 07:30:56,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:56,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:56,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:56,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:30:56,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:56,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 07:30:56,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:56,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:56,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:56,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-29 07:30:56,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:56,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:56,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 590 [2020-10-29 07:30:56,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:56,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:56,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:56,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:30:56,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:56,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-29 07:30:56,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:56,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:56,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:56,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-29 07:30:56,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:56,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:56,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 769 [2020-10-29 07:30:56,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:56,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:56,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:56,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-29 07:30:56,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:56,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 07:30:56,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:56,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:56,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:56,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-29 07:30:56,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:56,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:56,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 864 [2020-10-29 07:30:56,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:56,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:56,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:30:56,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 07:30:56,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:30:56,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 07:30:56,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:30:56,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:30:56,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:30:56,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 07:30:56,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:30:56,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:30:56,853 INFO L134 CoverageAnalysis]: Checked inductivity of 2934 backedges. 434 proven. 480 refuted. 0 times theorem prover too weak. 2020 trivial. 0 not checked. [2020-10-29 07:30:56,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1028070027] [2020-10-29 07:30:56,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:30:56,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:30:56,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408568851] [2020-10-29 07:30:56,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:30:56,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:30:56,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:30:56,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:30:56,856 INFO L87 Difference]: Start difference. First operand 6681 states and 7579 transitions. Second operand 7 states. [2020-10-29 07:30:58,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:30:58,741 INFO L93 Difference]: Finished difference Result 13908 states and 15800 transitions. [2020-10-29 07:30:58,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:30:58,744 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1013 [2020-10-29 07:30:58,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:30:58,766 INFO L225 Difference]: With dead ends: 13908 [2020-10-29 07:30:58,767 INFO L226 Difference]: Without dead ends: 7417 [2020-10-29 07:30:58,781 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:30:58,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7417 states. [2020-10-29 07:30:58,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7417 to 7049. [2020-10-29 07:30:58,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7049 states. [2020-10-29 07:30:58,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7049 states to 7049 states and 7984 transitions. [2020-10-29 07:30:58,933 INFO L78 Accepts]: Start accepts. Automaton has 7049 states and 7984 transitions. Word has length 1013 [2020-10-29 07:30:58,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:30:58,934 INFO L481 AbstractCegarLoop]: Abstraction has 7049 states and 7984 transitions. [2020-10-29 07:30:58,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:30:58,934 INFO L276 IsEmpty]: Start isEmpty. Operand 7049 states and 7984 transitions. [2020-10-29 07:30:58,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1021 [2020-10-29 07:30:58,949 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:30:58,950 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:30:58,950 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 07:30:58,950 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:30:58,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:30:58,951 INFO L82 PathProgramCache]: Analyzing trace with hash 760588622, now seen corresponding path program 1 times [2020-10-29 07:30:58,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:30:58,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1722232001] [2020-10-29 07:30:58,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:30:59,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:30:59,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:59,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:30:59,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:01,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:04,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:04,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1046 [2020-10-29 07:31:04,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:31:04,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5058 [2020-10-29 07:31:04,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:04,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:04,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:31:04,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-29 07:31:04,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:31:04,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:04,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:31:04,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:04,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:04,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:04,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:31:04,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:04,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:31:04,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:04,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:04,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:04,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:04,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:04,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:04,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:31:04,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:04,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:04,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:04,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:31:04,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:04,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 07:31:04,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:04,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:04,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:04,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:04,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:04,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:04,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:31:04,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:04,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:04,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:04,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:31:04,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:04,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 07:31:04,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:04,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:04,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:04,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:04,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:04,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:04,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:31:04,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:04,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:04,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:04,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:31:04,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:04,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-29 07:31:04,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:04,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:04,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:31:04,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:04,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-29 07:31:04,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:04,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:31:04,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:04,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:04,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:04,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:31:04,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:04,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-29 07:31:04,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:04,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:04,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:31:04,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:31:04,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-29 07:31:04,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:04,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-10-29 07:31:04,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:04,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:04,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:04,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:31:04,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:04,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:31:04,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:04,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:04,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:04,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-29 07:31:04,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:04,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:04,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2020-10-29 07:31:04,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:04,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:05,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:05,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:31:05,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:05,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-29 07:31:05,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:05,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:05,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:05,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-29 07:31:05,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:05,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:05,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 776 [2020-10-29 07:31:05,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:05,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:05,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:05,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-29 07:31:05,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:05,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 07:31:05,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:05,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:05,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:05,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-29 07:31:05,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:05,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:05,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 871 [2020-10-29 07:31:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:05,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:05,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:05,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 07:31:05,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:05,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-29 07:31:05,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:05,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:05,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:05,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 07:31:05,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:05,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:06,034 INFO L134 CoverageAnalysis]: Checked inductivity of 2955 backedges. 441 proven. 480 refuted. 0 times theorem prover too weak. 2034 trivial. 0 not checked. [2020-10-29 07:31:06,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1722232001] [2020-10-29 07:31:06,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:31:06,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 07:31:06,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701666548] [2020-10-29 07:31:06,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 07:31:06,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:31:06,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 07:31:06,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:31:06,036 INFO L87 Difference]: Start difference. First operand 7049 states and 7984 transitions. Second operand 8 states. [2020-10-29 07:31:08,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:31:08,202 INFO L93 Difference]: Finished difference Result 14640 states and 16628 transitions. [2020-10-29 07:31:08,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 07:31:08,203 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1020 [2020-10-29 07:31:08,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:31:08,224 INFO L225 Difference]: With dead ends: 14640 [2020-10-29 07:31:08,224 INFO L226 Difference]: Without dead ends: 7781 [2020-10-29 07:31:08,239 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:31:08,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7781 states. [2020-10-29 07:31:08,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7781 to 7597. [2020-10-29 07:31:08,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7597 states. [2020-10-29 07:31:08,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7597 states to 7597 states and 8578 transitions. [2020-10-29 07:31:08,584 INFO L78 Accepts]: Start accepts. Automaton has 7597 states and 8578 transitions. Word has length 1020 [2020-10-29 07:31:08,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:31:08,585 INFO L481 AbstractCegarLoop]: Abstraction has 7597 states and 8578 transitions. [2020-10-29 07:31:08,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 07:31:08,585 INFO L276 IsEmpty]: Start isEmpty. Operand 7597 states and 8578 transitions. [2020-10-29 07:31:08,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1119 [2020-10-29 07:31:08,605 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:31:08,606 INFO L422 BasicCegarLoop]: trace histogram [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, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:31:08,606 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 07:31:08,606 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:31:08,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:31:08,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1213860797, now seen corresponding path program 1 times [2020-10-29 07:31:08,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:31:08,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [719249613] [2020-10-29 07:31:08,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:31:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:08,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:09,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:09,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:13,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:13,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1146 [2020-10-29 07:31:13,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:31:13,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5053 [2020-10-29 07:31:13,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:13,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:13,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:31:13,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-29 07:31:13,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-29 07:31:13,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:13,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:31:13,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:13,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:13,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:13,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:31:13,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:13,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:31:13,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:13,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:13,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:13,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:13,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:13,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:13,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:31:13,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:13,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:13,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:13,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:31:13,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:13,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 07:31:13,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:13,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:13,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:13,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:13,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:13,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:14,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:31:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:14,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:14,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:14,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:31:14,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:14,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:31:14,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:14,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:14,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:14,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:14,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:14,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:14,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:31:14,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:14,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:14,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:14,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:31:14,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:14,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:31:14,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:14,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:14,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:14,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:14,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:14,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:14,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:31:14,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:14,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:14,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:14,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:31:14,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:14,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 07:31:14,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:14,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:14,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:14,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:14,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:14,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:14,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:31:14,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:14,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:14,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:14,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:31:14,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:14,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 07:31:14,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:14,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:14,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:14,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:14,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:14,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:14,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:31:14,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:14,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:14,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:14,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:31:14,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:14,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 07:31:14,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:14,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:14,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:14,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:14,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:14,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:14,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:31:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:14,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:14,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:14,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:31:14,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:14,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-29 07:31:14,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:14,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:14,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:31:14,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:14,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-29 07:31:14,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:14,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:31:14,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:14,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:14,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:14,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 07:31:14,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:14,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-29 07:31:14,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:14,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:14,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:31:14,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:31:14,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 07:31:14,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:14,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2020-10-29 07:31:14,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:14,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:14,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:14,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 07:31:14,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:14,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-29 07:31:14,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:14,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:14,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:14,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 07:31:14,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:14,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:31:15,421 INFO L134 CoverageAnalysis]: Checked inductivity of 3702 backedges. 812 proven. 111 refuted. 0 times theorem prover too weak. 2779 trivial. 0 not checked. [2020-10-29 07:31:15,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [719249613] [2020-10-29 07:31:15,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:31:15,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:31:15,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382602351] [2020-10-29 07:31:15,423 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:31:15,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:31:15,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:31:15,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:31:15,424 INFO L87 Difference]: Start difference. First operand 7597 states and 8578 transitions. Second operand 7 states. [2020-10-29 07:31:17,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:31:17,516 INFO L93 Difference]: Finished difference Result 15922 states and 18128 transitions. [2020-10-29 07:31:17,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 07:31:17,517 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1118 [2020-10-29 07:31:17,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:31:17,541 INFO L225 Difference]: With dead ends: 15922 [2020-10-29 07:31:17,541 INFO L226 Difference]: Without dead ends: 8515 [2020-10-29 07:31:17,552 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-29 07:31:17,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8515 states. [2020-10-29 07:31:17,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8515 to 8511. [2020-10-29 07:31:17,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8511 states. [2020-10-29 07:31:17,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8511 states to 8511 states and 9591 transitions. [2020-10-29 07:31:17,727 INFO L78 Accepts]: Start accepts. Automaton has 8511 states and 9591 transitions. Word has length 1118 [2020-10-29 07:31:17,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:31:17,728 INFO L481 AbstractCegarLoop]: Abstraction has 8511 states and 9591 transitions. [2020-10-29 07:31:17,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:31:17,729 INFO L276 IsEmpty]: Start isEmpty. Operand 8511 states and 9591 transitions. [2020-10-29 07:31:17,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1237 [2020-10-29 07:31:17,750 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:31:17,751 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 7, 6, 6, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 07:31:17,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-29 07:31:17,751 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:31:17,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:31:17,752 INFO L82 PathProgramCache]: Analyzing trace with hash 200322742, now seen corresponding path program 1 times [2020-10-29 07:31:17,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:31:17,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [524900851] [2020-10-29 07:31:17,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:31:17,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:18,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:18,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:18,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:20,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:23,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:23,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1266 [2020-10-29 07:31:23,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:31:23,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5060 [2020-10-29 07:31:23,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:23,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:23,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 07:31:23,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-29 07:31:23,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 416 [2020-10-29 07:31:23,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:23,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:31:23,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:23,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:23,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:23,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:31:23,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:23,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:31:23,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:23,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:23,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:23,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:23,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:23,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:23,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:31:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:23,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:23,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:23,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:31:23,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:23,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 07:31:23,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:23,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:23,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:23,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:23,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:23,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:23,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:31:23,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:23,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:23,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:23,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:31:23,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:23,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:31:23,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:23,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:23,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:23,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:23,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:23,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:23,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:31:23,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:23,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:23,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:23,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:31:23,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:23,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:31:23,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:23,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:23,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:23,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:23,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:23,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:23,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:31:23,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:23,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:23,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:23,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:31:23,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:23,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 07:31:23,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:23,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:23,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:23,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:23,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:23,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:23,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:31:23,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:23,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:23,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:23,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:31:23,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:23,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 07:31:23,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:23,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:23,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:23,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:23,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:23,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:23,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:31:23,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:23,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:23,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:23,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:31:23,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:23,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:31:23,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:23,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:23,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:31:23,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:23,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 07:31:23,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:23,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:31:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:23,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:23,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:23,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:31:23,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:23,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-29 07:31:23,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:23,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:23,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 07:31:23,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:31:23,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:31:23,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:23,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:31:23,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:23,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:23,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:23,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:31:23,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:23,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-29 07:31:23,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:23,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:23,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:31:23,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:31:23,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-29 07:31:23,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:24,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:31:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:24,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:24,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:24,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 07:31:24,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:24,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-29 07:31:24,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:24,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:24,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:31:24,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:31:24,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 07:31:24,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:24,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1087 [2020-10-29 07:31:24,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:24,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:24,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:24,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 07:31:24,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:24,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 07:31:24,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:24,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:24,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:24,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 07:31:24,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:24,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:25,887 INFO L134 CoverageAnalysis]: Checked inductivity of 4668 backedges. 2093 proven. 581 refuted. 0 times theorem prover too weak. 1994 trivial. 0 not checked. [2020-10-29 07:31:25,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [524900851] [2020-10-29 07:31:25,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:31:25,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 07:31:25,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068804271] [2020-10-29 07:31:25,889 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 07:31:25,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:31:25,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 07:31:25,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:31:25,890 INFO L87 Difference]: Start difference. First operand 8511 states and 9591 transitions. Second operand 11 states. [2020-10-29 07:31:29,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:31:29,791 INFO L93 Difference]: Finished difference Result 17386 states and 19557 transitions. [2020-10-29 07:31:29,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-29 07:31:29,795 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1236 [2020-10-29 07:31:29,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:31:29,819 INFO L225 Difference]: With dead ends: 17386 [2020-10-29 07:31:29,819 INFO L226 Difference]: Without dead ends: 9065 [2020-10-29 07:31:29,830 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=165, Invalid=485, Unknown=0, NotChecked=0, Total=650 [2020-10-29 07:31:29,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9065 states. [2020-10-29 07:31:29,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9065 to 8511. [2020-10-29 07:31:29,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8511 states. [2020-10-29 07:31:30,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8511 states to 8511 states and 9581 transitions. [2020-10-29 07:31:30,002 INFO L78 Accepts]: Start accepts. Automaton has 8511 states and 9581 transitions. Word has length 1236 [2020-10-29 07:31:30,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:31:30,003 INFO L481 AbstractCegarLoop]: Abstraction has 8511 states and 9581 transitions. [2020-10-29 07:31:30,003 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 07:31:30,003 INFO L276 IsEmpty]: Start isEmpty. Operand 8511 states and 9581 transitions. [2020-10-29 07:31:30,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1377 [2020-10-29 07:31:30,030 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:31:30,031 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:31:30,031 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-29 07:31:30,031 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:31:30,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:31:30,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1147937691, now seen corresponding path program 1 times [2020-10-29 07:31:30,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:31:30,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [381017305] [2020-10-29 07:31:30,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:31:30,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:30,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:30,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:30,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:32,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:34,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:35,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:35,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1408 [2020-10-29 07:31:35,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:31:35,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5086 [2020-10-29 07:31:35,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:35,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:35,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:31:35,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1013 [2020-10-29 07:31:35,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 235 [2020-10-29 07:31:35,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:35,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:31:35,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:35,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:35,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:35,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:31:35,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:35,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 07:31:35,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:35,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:35,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:35,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:35,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:35,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:35,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:31:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:35,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:35,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:35,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:31:35,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:35,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:31:35,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:35,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:35,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:35,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:35,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:35,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:35,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:31:35,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:35,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:35,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:35,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:31:35,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:35,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:31:35,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:35,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:35,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:35,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:35,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:35,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:35,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:31:35,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:35,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:35,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:35,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:31:35,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:35,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:31:35,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:35,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:35,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:35,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:35,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:35,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:35,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:31:35,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:35,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:35,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:35,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:31:35,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:35,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 07:31:35,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:35,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:35,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:35,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:35,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:35,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:35,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:31:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:35,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:35,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:35,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:31:35,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:35,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-29 07:31:35,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:35,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:35,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:35,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:35,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:35,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:35,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:31:35,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:35,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:35,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:35,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:31:35,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:35,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 07:31:35,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:35,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:35,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:35,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:35,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:35,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:35,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:31:35,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:35,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:36,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:36,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:31:36,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:36,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-10-29 07:31:36,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:36,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:36,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:36,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:36,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:36,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:36,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:31:36,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:36,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:36,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:36,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:31:36,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:36,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-29 07:31:36,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:36,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:36,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:31:36,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:36,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-29 07:31:36,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:36,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 997 [2020-10-29 07:31:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:36,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:36,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:36,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:36,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:31:36,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:31:36,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-29 07:31:36,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:36,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:36,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:31:36,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:36,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 07:31:36,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:36,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-29 07:31:36,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:36,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:36,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:36,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 07:31:36,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:36,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-29 07:31:36,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:36,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:36,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:31:36,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:31:36,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 07:31:36,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:36,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1227 [2020-10-29 07:31:36,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:36,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:36,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:36,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 07:31:36,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:36,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 07:31:36,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:36,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:36,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:36,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 07:31:36,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:36,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:37,820 INFO L134 CoverageAnalysis]: Checked inductivity of 5818 backedges. 1101 proven. 115 refuted. 0 times theorem prover too weak. 4602 trivial. 0 not checked. [2020-10-29 07:31:37,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [381017305] [2020-10-29 07:31:37,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:31:37,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 07:31:37,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58892992] [2020-10-29 07:31:37,821 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 07:31:37,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:31:37,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 07:31:37,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:31:37,822 INFO L87 Difference]: Start difference. First operand 8511 states and 9581 transitions. Second operand 8 states. [2020-10-29 07:31:40,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:31:40,422 INFO L93 Difference]: Finished difference Result 17390 states and 19559 transitions. [2020-10-29 07:31:40,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 07:31:40,423 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1376 [2020-10-29 07:31:40,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:31:40,442 INFO L225 Difference]: With dead ends: 17390 [2020-10-29 07:31:40,443 INFO L226 Difference]: Without dead ends: 9069 [2020-10-29 07:31:40,452 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-29 07:31:40,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9069 states. [2020-10-29 07:31:40,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9069 to 8879. [2020-10-29 07:31:40,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8879 states. [2020-10-29 07:31:40,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8879 states to 8879 states and 9913 transitions. [2020-10-29 07:31:40,613 INFO L78 Accepts]: Start accepts. Automaton has 8879 states and 9913 transitions. Word has length 1376 [2020-10-29 07:31:40,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:31:40,614 INFO L481 AbstractCegarLoop]: Abstraction has 8879 states and 9913 transitions. [2020-10-29 07:31:40,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 07:31:40,614 INFO L276 IsEmpty]: Start isEmpty. Operand 8879 states and 9913 transitions. [2020-10-29 07:31:40,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1440 [2020-10-29 07:31:40,639 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:31:40,640 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 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, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:31:40,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-29 07:31:40,640 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:31:40,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:31:40,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1567954057, now seen corresponding path program 1 times [2020-10-29 07:31:40,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:31:40,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [100753614] [2020-10-29 07:31:40,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:31:40,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:40,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:41,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:44,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:45,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:45,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:45,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1471 [2020-10-29 07:31:45,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:31:45,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-29 07:31:45,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:45,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:45,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 07:31:45,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-29 07:31:45,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 306 [2020-10-29 07:31:45,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:46,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:31:46,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:46,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:46,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:46,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:31:46,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:46,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:31:46,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:46,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:46,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:46,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:46,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:46,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:46,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:31:46,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:46,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:46,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:46,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:31:46,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:46,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:31:46,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:46,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:46,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:46,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:46,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:46,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:46,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:31:46,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:46,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:46,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:46,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:31:46,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:46,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 07:31:46,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:46,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:46,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:46,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:46,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:46,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:46,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:31:46,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:46,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:46,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:46,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:31:46,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:46,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:31:46,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:46,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:46,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:46,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:46,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:46,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:46,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:31:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:46,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:46,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:46,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:31:46,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:46,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 07:31:46,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:46,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:46,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:46,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:46,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:46,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:46,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:31:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:46,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:46,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:46,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:31:46,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:46,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 07:31:46,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:46,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:46,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:46,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:46,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:46,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:46,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:31:46,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:46,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:46,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:46,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:31:46,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:46,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 07:31:46,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:46,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:46,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:31:46,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:46,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 07:31:46,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:46,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:31:46,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:46,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:46,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:46,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:31:46,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:46,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 353 [2020-10-29 07:31:46,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:46,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:46,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 07:31:46,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:31:46,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:31:46,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:31:47,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:31:47,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:47,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:47,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:47,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:47,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:31:47,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:31:47,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 384 [2020-10-29 07:31:47,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:47,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:47,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:31:47,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:31:47,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-29 07:31:47,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:47,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 997 [2020-10-29 07:31:47,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:47,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:48,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:48,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-29 07:31:48,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:48,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-29 07:31:48,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:48,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:48,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:48,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-29 07:31:48,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:48,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:48,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1179 [2020-10-29 07:31:48,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:48,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:48,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:48,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 07:31:48,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:48,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 07:31:48,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:48,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:48,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:48,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 109 [2020-10-29 07:31:48,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:48,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:48,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1290 [2020-10-29 07:31:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:48,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:48,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:48,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 07:31:48,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:48,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-29 07:31:48,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:48,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:48,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:48,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 07:31:48,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:48,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:50,407 INFO L134 CoverageAnalysis]: Checked inductivity of 5978 backedges. 1467 proven. 938 refuted. 0 times theorem prover too weak. 3573 trivial. 0 not checked. [2020-10-29 07:31:50,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [100753614] [2020-10-29 07:31:50,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:31:50,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 07:31:50,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968269710] [2020-10-29 07:31:50,408 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 07:31:50,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:31:50,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 07:31:50,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:31:50,409 INFO L87 Difference]: Start difference. First operand 8879 states and 9913 transitions. Second operand 11 states. [2020-10-29 07:31:54,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:31:54,856 INFO L93 Difference]: Finished difference Result 17972 states and 20171 transitions. [2020-10-29 07:31:54,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-29 07:31:54,857 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1439 [2020-10-29 07:31:54,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:31:54,882 INFO L225 Difference]: With dead ends: 17972 [2020-10-29 07:31:54,883 INFO L226 Difference]: Without dead ends: 9283 [2020-10-29 07:31:54,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=163, Invalid=539, Unknown=0, NotChecked=0, Total=702 [2020-10-29 07:31:54,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9283 states. [2020-10-29 07:31:55,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9283 to 8881. [2020-10-29 07:31:55,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8881 states. [2020-10-29 07:31:55,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8881 states to 8881 states and 9912 transitions. [2020-10-29 07:31:55,102 INFO L78 Accepts]: Start accepts. Automaton has 8881 states and 9912 transitions. Word has length 1439 [2020-10-29 07:31:55,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:31:55,103 INFO L481 AbstractCegarLoop]: Abstraction has 8881 states and 9912 transitions. [2020-10-29 07:31:55,103 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 07:31:55,103 INFO L276 IsEmpty]: Start isEmpty. Operand 8881 states and 9912 transitions. [2020-10-29 07:31:55,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1558 [2020-10-29 07:31:55,131 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:31:55,132 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 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, 8, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-29 07:31:55,132 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-29 07:31:55,132 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:31:55,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:31:55,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1597960290, now seen corresponding path program 1 times [2020-10-29 07:31:55,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:31:55,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [97654956] [2020-10-29 07:31:55,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:31:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:55,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:56,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:57,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:59,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:59,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1591 [2020-10-29 07:31:59,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:31:59,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4312 [2020-10-29 07:31:59,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:59,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:59,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:31:59,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1430 [2020-10-29 07:31:59,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 07:31:59,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:59,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:31:59,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:59,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:59,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:59,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:31:59,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:59,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 07:31:59,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:59,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:59,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:59,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:59,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:59,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:59,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:31:59,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:59,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:31:59,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:31:59,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:31:59,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:31:59,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 07:31:59,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:31:59,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:31:59,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:31:59,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:31:59,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:31:59,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:31:59,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:31:59,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:31:59,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:00,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:00,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:32:00,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:00,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 07:32:00,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:00,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:00,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:00,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:00,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:00,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:00,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:32:00,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:00,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:00,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:00,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:32:00,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:00,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:32:00,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:00,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:00,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:00,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:00,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:00,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:00,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:32:00,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:00,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:00,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:00,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:32:00,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:00,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 07:32:00,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:00,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:00,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:00,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:00,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:00,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:00,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:32:00,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:00,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:00,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:00,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:32:00,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:00,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 07:32:00,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:00,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:00,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:00,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:00,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:00,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:00,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:32:00,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:00,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:00,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:00,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:32:00,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:00,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 07:32:00,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:00,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:00,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:00,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:00,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:00,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:00,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:32:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:00,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:00,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:00,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:32:00,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:00,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:32:00,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:00,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:00,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:00,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:00,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:00,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:00,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:32:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:00,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:00,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:00,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:32:00,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:00,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:32:00,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:00,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:00,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:00,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:00,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:00,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:00,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:32:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:00,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:00,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:00,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:32:00,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:00,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 07:32:00,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:00,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:00,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:00,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:00,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:00,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:00,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-29 07:32:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:00,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:00,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:00,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-29 07:32:00,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:00,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 07:32:00,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:00,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:00,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:32:00,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:00,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:32:00,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:00,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-29 07:32:00,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:00,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:00,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:00,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 07:32:00,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:00,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 07:32:00,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:00,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:00,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:32:00,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:32:00,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-29 07:32:00,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:00,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1408 [2020-10-29 07:32:00,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:00,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:00,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:32:00,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 07:32:00,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:32:00,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-29 07:32:00,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:32:00,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:32:00,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:32:00,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:32:00,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-29 07:32:00,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:32:02,013 INFO L134 CoverageAnalysis]: Checked inductivity of 7179 backedges. 1389 proven. 2 refuted. 0 times theorem prover too weak. 5788 trivial. 0 not checked. [2020-10-29 07:32:02,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [97654956] [2020-10-29 07:32:02,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:32:02,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:32:02,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675576843] [2020-10-29 07:32:02,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:32:02,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:32:02,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:32:02,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:32:02,016 INFO L87 Difference]: Start difference. First operand 8881 states and 9912 transitions. Second operand 7 states. [2020-10-29 07:32:04,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:32:04,318 INFO L93 Difference]: Finished difference Result 17786 states and 19936 transitions. [2020-10-29 07:32:04,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:32:04,320 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1557 [2020-10-29 07:32:04,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:32:04,335 INFO L225 Difference]: With dead ends: 17786 [2020-10-29 07:32:04,336 INFO L226 Difference]: Without dead ends: 6695 [2020-10-29 07:32:04,349 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:32:04,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6695 states. [2020-10-29 07:32:04,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6695 to 6473. [2020-10-29 07:32:04,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6473 states. [2020-10-29 07:32:04,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6473 states to 6473 states and 6963 transitions. [2020-10-29 07:32:04,486 INFO L78 Accepts]: Start accepts. Automaton has 6473 states and 6963 transitions. Word has length 1557 [2020-10-29 07:32:04,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:32:04,488 INFO L481 AbstractCegarLoop]: Abstraction has 6473 states and 6963 transitions. [2020-10-29 07:32:04,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:32:04,488 INFO L276 IsEmpty]: Start isEmpty. Operand 6473 states and 6963 transitions. [2020-10-29 07:32:04,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1560 [2020-10-29 07:32:04,520 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:32:04,521 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 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, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-29 07:32:04,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-29 07:32:04,521 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:32:04,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:32:04,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1757722978, now seen corresponding path program 1 times [2020-10-29 07:32:04,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:32:04,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1445417801] [2020-10-29 07:32:04,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:32:04,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:32:05,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:32:05,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking...