/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/recursive-simple/id_i20_o20-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 12:10:38,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 12:10:38,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 12:10:39,029 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 12:10:39,030 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 12:10:39,037 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 12:10:39,039 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 12:10:39,045 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 12:10:39,049 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 12:10:39,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 12:10:39,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 12:10:39,058 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 12:10:39,058 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 12:10:39,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 12:10:39,065 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 12:10:39,068 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 12:10:39,069 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 12:10:39,072 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 12:10:39,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 12:10:39,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 12:10:39,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 12:10:39,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 12:10:39,093 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 12:10:39,095 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 12:10:39,104 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 12:10:39,104 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 12:10:39,104 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 12:10:39,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 12:10:39,107 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 12:10:39,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 12:10:39,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 12:10:39,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 12:10:39,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 12:10:39,112 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 12:10:39,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 12:10:39,127 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 12:10:39,128 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 12:10:39,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 12:10:39,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 12:10:39,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 12:10:39,131 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 12:10:39,138 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 12:10:39,187 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 12:10:39,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 12:10:39,191 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 12:10:39,191 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 12:10:39,192 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 12:10:39,192 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 12:10:39,192 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 12:10:39,192 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 12:10:39,192 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 12:10:39,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 12:10:39,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 12:10:39,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 12:10:39,194 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 12:10:39,194 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 12:10:39,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 12:10:39,195 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 12:10:39,195 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 12:10:39,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 12:10:39,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 12:10:39,196 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 12:10:39,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 12:10:39,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 12:10:39,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 12:10:39,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 12:10:39,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 12:10:39,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 12:10:39,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 12:10:39,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 12:10:39,198 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 12:10:39,198 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 12:10:39,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 12:10:39,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 12:10:39,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 12:10:39,635 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 12:10:39,636 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 12:10:39,637 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_i20_o20-2.c [2020-10-29 12:10:39,731 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5892d9a3e/4a1964557d3e413ea315af0f747d4d56/FLAGf7dd57ca1 [2020-10-29 12:10:40,417 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 12:10:40,418 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_i20_o20-2.c [2020-10-29 12:10:40,425 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5892d9a3e/4a1964557d3e413ea315af0f747d4d56/FLAGf7dd57ca1 [2020-10-29 12:10:40,779 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5892d9a3e/4a1964557d3e413ea315af0f747d4d56 [2020-10-29 12:10:40,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 12:10:40,793 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 12:10:40,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 12:10:40,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 12:10:40,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 12:10:40,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:10:40" (1/1) ... [2020-10-29 12:10:40,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f690327 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:10:40, skipping insertion in model container [2020-10-29 12:10:40,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:10:40" (1/1) ... [2020-10-29 12:10:40,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 12:10:40,826 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 12:10:41,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:10:41,014 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 12:10:41,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:10:41,051 INFO L208 MainTranslator]: Completed translation [2020-10-29 12:10:41,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:10:41 WrapperNode [2020-10-29 12:10:41,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 12:10:41,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 12:10:41,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 12:10:41,054 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 12:10:41,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:10:41" (1/1) ... [2020-10-29 12:10:41,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:10:41" (1/1) ... [2020-10-29 12:10:41,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:10:41" (1/1) ... [2020-10-29 12:10:41,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:10:41" (1/1) ... [2020-10-29 12:10:41,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:10:41" (1/1) ... [2020-10-29 12:10:41,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:10:41" (1/1) ... [2020-10-29 12:10:41,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:10:41" (1/1) ... [2020-10-29 12:10:41,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 12:10:41,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 12:10:41,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 12:10:41,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 12:10:41,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:10:41" (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 12:10:41,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 12:10:41,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 12:10:41,184 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 12:10:41,184 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-10-29 12:10:41,185 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 12:10:41,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 12:10:41,185 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 12:10:41,185 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 12:10:41,185 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 12:10:41,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 12:10:41,186 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-10-29 12:10:41,186 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 12:10:41,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 12:10:41,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 12:10:41,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 12:10:41,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 12:10:41,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 12:10:41,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 12:10:41,464 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 12:10:41,464 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-29 12:10:41,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:10:41 BoogieIcfgContainer [2020-10-29 12:10:41,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 12:10:41,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 12:10:41,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 12:10:41,474 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 12:10:41,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 12:10:40" (1/3) ... [2020-10-29 12:10:41,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68fb4b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:10:41, skipping insertion in model container [2020-10-29 12:10:41,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:10:41" (2/3) ... [2020-10-29 12:10:41,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68fb4b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:10:41, skipping insertion in model container [2020-10-29 12:10:41,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:10:41" (3/3) ... [2020-10-29 12:10:41,478 INFO L111 eAbstractionObserver]: Analyzing ICFG id_i20_o20-2.c [2020-10-29 12:10:41,495 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 12:10:41,501 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 12:10:41,523 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 12:10:41,578 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 12:10:41,579 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 12:10:41,579 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 12:10:41,579 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 12:10:41,579 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 12:10:41,580 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 12:10:41,580 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 12:10:41,583 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 12:10:41,614 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-10-29 12:10:41,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-29 12:10:41,621 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:10:41,622 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:10:41,623 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:10:41,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:10:41,631 INFO L82 PathProgramCache]: Analyzing trace with hash 560135365, now seen corresponding path program 1 times [2020-10-29 12:10:41,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:10:41,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [641382209] [2020-10-29 12:10:41,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:10:41,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:41,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:41,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:42,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:42,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:10:42,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:10:42,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 727 [2020-10-29 12:10:42,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:42,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:42,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:10:42,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 12:10:42,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:10:42,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 12:10:42,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:10:42,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:42,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:42,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:42,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:10:42,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:42,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:10:42,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:42,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:42,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:10:42,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:42,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:10:42,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:10:42,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:10:42,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:42,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:42,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:42,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:10:42,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:42,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:10:42,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:42,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:42,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:10:42,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:10:42,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:10:42,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:10:42,716 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 12:10:42,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [641382209] [2020-10-29 12:10:42,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:10:42,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 12:10:42,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618117205] [2020-10-29 12:10:42,726 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 12:10:42,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:10:42,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 12:10:42,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-29 12:10:42,746 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 6 states. [2020-10-29 12:10:43,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:10:43,025 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2020-10-29 12:10:43,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 12:10:43,028 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-29 12:10:43,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:10:43,038 INFO L225 Difference]: With dead ends: 36 [2020-10-29 12:10:43,038 INFO L226 Difference]: Without dead ends: 20 [2020-10-29 12:10:43,042 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-29 12:10:43,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-29 12:10:43,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-10-29 12:10:43,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-29 12:10:43,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-10-29 12:10:43,100 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 15 [2020-10-29 12:10:43,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:10:43,101 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-10-29 12:10:43,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 12:10:43,101 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-10-29 12:10:43,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-29 12:10:43,103 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:10:43,104 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:10:43,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 12:10:43,104 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:10:43,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:10:43,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1295611761, now seen corresponding path program 1 times [2020-10-29 12:10:43,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:10:43,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [963624699] [2020-10-29 12:10:43,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:10:43,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:43,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:43,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:43,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:43,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 12:10:43,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:10:43,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 651 [2020-10-29 12:10:43,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:43,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:43,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 12:10:43,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 12:10:43,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:10:43,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:10:43,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:10:43,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:43,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:43,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:43,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:10:43,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:43,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:10:43,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:43,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:43,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:10:43,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:43,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:10:43,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:10:43,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:10:43,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:43,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:43,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:43,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:10:43,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:43,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 12:10:43,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:43,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:43,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:10:43,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:43,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:10:43,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:10:43,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:10:43,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:43,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:43,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:43,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:10:43,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:43,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:10:43,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:43,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:43,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:10:43,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:43,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 12:10:43,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:10:43,952 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-29 12:10:43,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [963624699] [2020-10-29 12:10:43,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:10:43,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 12:10:43,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134107447] [2020-10-29 12:10:43,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 12:10:43,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:10:43,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 12:10:43,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-29 12:10:43,957 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 8 states. [2020-10-29 12:10:44,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:10:44,218 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2020-10-29 12:10:44,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 12:10:44,218 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-10-29 12:10:44,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:10:44,219 INFO L225 Difference]: With dead ends: 28 [2020-10-29 12:10:44,220 INFO L226 Difference]: Without dead ends: 23 [2020-10-29 12:10:44,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-29 12:10:44,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-29 12:10:44,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-29 12:10:44,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-29 12:10:44,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-10-29 12:10:44,230 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 21 [2020-10-29 12:10:44,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:10:44,231 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-10-29 12:10:44,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 12:10:44,231 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-10-29 12:10:44,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-29 12:10:44,232 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:10:44,232 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:10:44,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 12:10:44,233 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:10:44,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:10:44,234 INFO L82 PathProgramCache]: Analyzing trace with hash -116387003, now seen corresponding path program 2 times [2020-10-29 12:10:44,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:10:44,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [424898435] [2020-10-29 12:10:44,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:10:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:44,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:44,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:45,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:45,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 12:10:45,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:10:45,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 812 [2020-10-29 12:10:45,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:45,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:45,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 12:10:45,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 12:10:45,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 12:10:45,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:10:45,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:10:45,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:45,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:45,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:45,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:10:45,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:45,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:10:45,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:45,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:45,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:10:45,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:45,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:10:45,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:10:45,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:10:45,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:45,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:45,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:45,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:10:45,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:45,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 12:10:45,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:45,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:45,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 12:10:45,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:10:45,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 12:10:45,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:10:45,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:10:45,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:45,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:45,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:45,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:10:45,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:45,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 12:10:45,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:45,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:45,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:10:45,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:45,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 12:10:45,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:10:45,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:10:45,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:45,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:45,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:45,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:10:45,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:45,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:10:45,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:45,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:45,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:10:45,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:45,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:10:45,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:10:45,259 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 12:10:45,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [424898435] [2020-10-29 12:10:45,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:10:45,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-29 12:10:45,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575295564] [2020-10-29 12:10:45,261 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 12:10:45,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:10:45,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 12:10:45,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-29 12:10:45,262 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 9 states. [2020-10-29 12:10:45,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:10:45,499 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-10-29 12:10:45,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 12:10:45,500 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-10-29 12:10:45,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:10:45,502 INFO L225 Difference]: With dead ends: 31 [2020-10-29 12:10:45,502 INFO L226 Difference]: Without dead ends: 26 [2020-10-29 12:10:45,503 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-29 12:10:45,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-29 12:10:45,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-29 12:10:45,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-29 12:10:45,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-10-29 12:10:45,511 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 27 [2020-10-29 12:10:45,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:10:45,512 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-10-29 12:10:45,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 12:10:45,512 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-10-29 12:10:45,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-29 12:10:45,513 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:10:45,514 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:10:45,514 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 12:10:45,514 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:10:45,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:10:45,515 INFO L82 PathProgramCache]: Analyzing trace with hash -738125937, now seen corresponding path program 3 times [2020-10-29 12:10:45,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:10:45,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1837597142] [2020-10-29 12:10:45,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:10:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:45,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:45,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:46,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:46,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 12:10:46,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:10:46,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1219 [2020-10-29 12:10:46,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:46,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:46,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 12:10:46,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 12:10:46,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-29 12:10:46,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:10:46,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:10:46,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:46,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:46,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:46,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:10:46,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:46,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:10:46,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:46,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:46,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:10:46,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:46,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:10:46,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:10:46,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:10:46,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:46,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:46,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:46,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 12:10:46,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:46,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-29 12:10:46,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:46,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:46,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 12:10:46,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:10:46,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-29 12:10:46,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:10:46,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:10:46,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:46,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:46,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:46,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:10:46,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:46,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 12:10:46,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:46,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:46,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 12:10:46,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:46,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 12:10:46,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:10:46,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:10:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:46,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:46,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:46,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:10:46,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:46,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 12:10:47,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:47,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:47,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:10:47,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:47,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 12:10:47,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:10:47,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:10:47,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:47,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:47,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:47,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:10:47,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:47,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:10:47,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:47,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:47,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:10:47,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:47,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:10:47,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:10:47,100 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-29 12:10:47,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1837597142] [2020-10-29 12:10:47,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:10:47,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 12:10:47,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220774192] [2020-10-29 12:10:47,111 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 12:10:47,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:10:47,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 12:10:47,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-29 12:10:47,112 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 11 states. [2020-10-29 12:10:47,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:10:47,461 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-10-29 12:10:47,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 12:10:47,462 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 33 [2020-10-29 12:10:47,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:10:47,464 INFO L225 Difference]: With dead ends: 34 [2020-10-29 12:10:47,464 INFO L226 Difference]: Without dead ends: 29 [2020-10-29 12:10:47,467 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2020-10-29 12:10:47,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-29 12:10:47,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-29 12:10:47,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-29 12:10:47,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-10-29 12:10:47,479 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 33 [2020-10-29 12:10:47,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:10:47,479 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-10-29 12:10:47,479 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 12:10:47,479 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-10-29 12:10:47,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-29 12:10:47,481 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:10:47,482 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:10:47,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 12:10:47,483 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:10:47,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:10:47,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1342585285, now seen corresponding path program 4 times [2020-10-29 12:10:47,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:10:47,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [168093059] [2020-10-29 12:10:47,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:10:47,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:47,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:47,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:48,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:48,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-29 12:10:48,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:10:48,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1101 [2020-10-29 12:10:48,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:48,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:48,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 12:10:48,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 12:10:48,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 12:10:48,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 12:10:48,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:10:48,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:48,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:48,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:48,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:10:48,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:48,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:10:48,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:48,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:48,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:10:48,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:48,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:10:48,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:10:48,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:10:48,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:48,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:48,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:48,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 12:10:48,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:48,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-29 12:10:48,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:48,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:48,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 12:10:48,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:10:48,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-29 12:10:48,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:10:48,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:10:48,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:48,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:48,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:48,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 12:10:48,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:48,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-29 12:10:48,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:48,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:48,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 12:10:48,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:48,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-29 12:10:48,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:10:48,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:10:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:48,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:48,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:48,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:10:48,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:48,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 12:10:48,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:48,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:48,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 12:10:48,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:48,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 12:10:48,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 12:10:49,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:10:49,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:49,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:49,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:49,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:10:49,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:49,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 12:10:49,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:49,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:49,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:10:49,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:49,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 12:10:49,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:10:49,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:10:49,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:49,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:49,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:49,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:10:49,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:49,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:10:49,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:49,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:49,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:10:49,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:49,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:10:49,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:10:49,110 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 4 proven. 26 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-29 12:10:49,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [168093059] [2020-10-29 12:10:49,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:10:49,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 12:10:49,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034348731] [2020-10-29 12:10:49,116 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 12:10:49,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:10:49,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 12:10:49,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-29 12:10:49,117 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 11 states. [2020-10-29 12:10:49,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:10:49,467 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-10-29 12:10:49,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 12:10:49,468 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 39 [2020-10-29 12:10:49,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:10:49,469 INFO L225 Difference]: With dead ends: 37 [2020-10-29 12:10:49,469 INFO L226 Difference]: Without dead ends: 32 [2020-10-29 12:10:49,471 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2020-10-29 12:10:49,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-29 12:10:49,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-29 12:10:49,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-29 12:10:49,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2020-10-29 12:10:49,482 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 39 [2020-10-29 12:10:49,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:10:49,483 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2020-10-29 12:10:49,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 12:10:49,484 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2020-10-29 12:10:49,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-29 12:10:49,487 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:10:49,487 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:10:49,487 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 12:10:49,488 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:10:49,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:10:49,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1660180111, now seen corresponding path program 5 times [2020-10-29 12:10:49,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:10:49,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1841108886] [2020-10-29 12:10:49,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:10:49,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:49,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:49,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:51,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:51,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-29 12:10:51,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:10:51,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1562 [2020-10-29 12:10:51,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:51,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:51,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 12:10:51,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 12:10:51,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-29 12:10:51,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:10:51,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:10:51,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:51,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:51,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:51,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:10:51,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:51,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:10:51,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:51,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:51,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:10:51,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:51,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:10:51,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:10:51,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:10:51,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:51,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:51,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:51,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 12:10:51,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:51,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-29 12:10:51,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:51,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:51,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 12:10:51,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:10:51,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-29 12:10:51,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:10:51,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:10:51,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:51,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:51,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:51,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 12:10:51,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:51,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-29 12:10:51,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:51,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:51,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 12:10:51,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:51,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-29 12:10:51,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:10:51,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:10:51,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:51,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:51,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:51,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 12:10:51,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:51,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-29 12:10:51,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:51,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:51,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 12:10:51,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:51,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-29 12:10:51,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:10:51,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:10:51,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:51,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:51,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:51,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:10:51,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:51,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-29 12:10:51,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:51,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:51,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 12:10:51,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:51,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 12:10:51,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:10:51,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:10:51,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:51,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:51,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:51,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:10:51,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:51,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 12:10:51,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:51,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:51,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:10:51,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:51,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 12:10:51,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:10:51,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:10:51,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:51,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:51,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:51,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:10:51,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:51,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:10:51,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:51,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:51,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:10:51,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:51,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:10:51,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:10:51,668 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 6 proven. 48 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-29 12:10:51,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1841108886] [2020-10-29 12:10:51,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:10:51,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-29 12:10:51,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853318565] [2020-10-29 12:10:51,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 12:10:51,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:10:51,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 12:10:51,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-10-29 12:10:51,673 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 12 states. [2020-10-29 12:10:52,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:10:52,039 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2020-10-29 12:10:52,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 12:10:52,040 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 45 [2020-10-29 12:10:52,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:10:52,043 INFO L225 Difference]: With dead ends: 40 [2020-10-29 12:10:52,044 INFO L226 Difference]: Without dead ends: 35 [2020-10-29 12:10:52,044 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2020-10-29 12:10:52,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-29 12:10:52,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-29 12:10:52,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-29 12:10:52,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2020-10-29 12:10:52,058 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 45 [2020-10-29 12:10:52,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:10:52,058 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2020-10-29 12:10:52,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 12:10:52,058 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2020-10-29 12:10:52,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-29 12:10:52,061 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:10:52,062 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:10:52,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 12:10:52,064 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:10:52,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:10:52,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1624338501, now seen corresponding path program 6 times [2020-10-29 12:10:52,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:10:52,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [684687530] [2020-10-29 12:10:52,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:10:52,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:52,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:52,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:53,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:53,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 12:10:53,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:10:53,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1909 [2020-10-29 12:10:53,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:53,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:53,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 12:10:53,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 12:10:53,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-29 12:10:53,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:10:54,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:10:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:54,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:54,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:54,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:10:54,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:54,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:10:54,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:54,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:54,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:10:54,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:54,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:10:54,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:10:54,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:10:54,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:54,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:54,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:54,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-29 12:10:54,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:54,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-29 12:10:54,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:54,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:54,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 12:10:54,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:10:54,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-29 12:10:54,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:10:54,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:10:54,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:54,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:54,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:54,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 12:10:54,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:54,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-29 12:10:54,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:54,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:54,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 12:10:54,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:54,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 12:10:54,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:10:54,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:10:54,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:54,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:54,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:54,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 12:10:54,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:54,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-29 12:10:54,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:54,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:54,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 12:10:54,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:54,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-29 12:10:54,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:10:54,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:10:54,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:54,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:54,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:54,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 12:10:54,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:54,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 12:10:54,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:54,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:54,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 12:10:54,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:54,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-29 12:10:54,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:10:54,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:10:54,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:54,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:54,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:54,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:10:54,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:54,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 12:10:54,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:54,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:54,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 12:10:54,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:54,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 12:10:54,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:10:54,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:10:54,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:54,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:54,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:54,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:10:54,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:54,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 12:10:54,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:54,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:54,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:10:54,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:54,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 12:10:54,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:10:54,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:10:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:54,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:54,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:54,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:10:54,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:54,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:10:54,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:54,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:54,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:10:54,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:54,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:10:54,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:10:54,808 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 73 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-10-29 12:10:54,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [684687530] [2020-10-29 12:10:54,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:10:54,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-29 12:10:54,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393115388] [2020-10-29 12:10:54,809 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 12:10:54,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:10:54,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 12:10:54,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2020-10-29 12:10:54,811 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 13 states. [2020-10-29 12:10:55,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:10:55,338 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-10-29 12:10:55,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 12:10:55,338 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 51 [2020-10-29 12:10:55,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:10:55,340 INFO L225 Difference]: With dead ends: 43 [2020-10-29 12:10:55,340 INFO L226 Difference]: Without dead ends: 38 [2020-10-29 12:10:55,342 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2020-10-29 12:10:55,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-29 12:10:55,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-29 12:10:55,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-29 12:10:55,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-10-29 12:10:55,363 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 51 [2020-10-29 12:10:55,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:10:55,363 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-10-29 12:10:55,363 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 12:10:55,364 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-10-29 12:10:55,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-29 12:10:55,366 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:10:55,366 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:10:55,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 12:10:55,367 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:10:55,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:10:55,368 INFO L82 PathProgramCache]: Analyzing trace with hash 502547855, now seen corresponding path program 7 times [2020-10-29 12:10:55,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:10:55,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1674059682] [2020-10-29 12:10:55,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:10:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:55,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:55,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:57,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:57,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 12:10:57,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:10:57,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2562 [2020-10-29 12:10:57,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:57,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:57,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-29 12:10:57,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 12:10:57,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-29 12:10:57,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:10:58,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:10:58,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:58,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:58,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:58,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:10:58,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:58,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:10:58,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:58,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:58,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:10:58,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:58,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:10:58,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:10:58,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:10:58,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:58,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:58,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:58,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-29 12:10:58,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:58,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-29 12:10:58,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:58,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:58,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-29 12:10:58,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:10:58,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-29 12:10:58,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:10:58,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:10:58,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:58,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:58,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:58,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-29 12:10:58,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:58,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-29 12:10:58,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:58,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:58,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 12:10:58,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:58,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-29 12:10:58,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:10:58,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:10:58,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:58,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:58,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:58,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 12:10:58,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:58,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-29 12:10:58,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:58,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:58,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 12:10:58,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:58,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 12:10:58,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:10:58,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:10:58,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:58,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:58,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:58,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 12:10:58,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:58,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-29 12:10:58,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:58,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:58,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 12:10:58,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:58,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-29 12:10:58,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:10:58,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:10:58,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:58,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:58,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:58,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 12:10:58,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:58,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-29 12:10:58,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:58,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:58,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 12:10:58,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:58,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-29 12:10:58,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:10:58,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:10:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:58,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:58,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:58,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:10:58,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:58,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 12:10:58,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:58,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:58,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 12:10:58,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:58,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 12:10:58,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:10:58,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:10:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:58,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:58,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:58,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:10:58,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:58,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 12:10:58,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:58,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:58,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:10:58,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:58,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 12:10:58,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:10:58,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:10:58,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:58,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:58,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:10:58,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:10:58,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:10:58,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:10:58,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:10:58,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:10:58,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:10:58,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:10:58,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:10:58,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:10:58,942 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 14 proven. 91 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2020-10-29 12:10:58,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1674059682] [2020-10-29 12:10:58,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:10:58,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 12:10:58,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313287125] [2020-10-29 12:10:58,945 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 12:10:58,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:10:58,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 12:10:58,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-29 12:10:58,947 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 14 states. [2020-10-29 12:10:59,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:10:59,497 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-10-29 12:10:59,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 12:10:59,498 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 57 [2020-10-29 12:10:59,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:10:59,500 INFO L225 Difference]: With dead ends: 46 [2020-10-29 12:10:59,500 INFO L226 Difference]: Without dead ends: 41 [2020-10-29 12:10:59,501 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=175, Invalid=377, Unknown=0, NotChecked=0, Total=552 [2020-10-29 12:10:59,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-29 12:10:59,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-29 12:10:59,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-29 12:10:59,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2020-10-29 12:10:59,508 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 57 [2020-10-29 12:10:59,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:10:59,509 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2020-10-29 12:10:59,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 12:10:59,509 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2020-10-29 12:10:59,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-29 12:10:59,510 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:10:59,510 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:10:59,510 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 12:10:59,511 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:10:59,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:10:59,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1459767611, now seen corresponding path program 8 times [2020-10-29 12:10:59,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:10:59,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [267794090] [2020-10-29 12:10:59,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:10:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:10:59,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:10:59,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:02,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:02,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-29 12:11:02,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:11:02,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3104 [2020-10-29 12:11:02,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:02,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:02,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-29 12:11:02,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 12:11:02,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-29 12:11:02,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:02,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:11:02,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:02,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:02,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:02,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:11:02,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:02,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:11:02,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:02,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:02,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:11:02,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:02,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:11:02,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:02,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:11:02,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:02,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:02,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:02,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 12:11:02,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:02,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-29 12:11:02,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:02,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:02,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-29 12:11:02,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:11:02,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-29 12:11:02,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:02,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:02,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:02,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:03,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:03,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-29 12:11:03,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:03,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-29 12:11:03,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:03,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:03,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 12:11:03,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:03,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-29 12:11:03,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:03,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:03,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:03,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:03,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:03,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-29 12:11:03,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:03,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-29 12:11:03,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:03,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:03,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 12:11:03,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:03,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-29 12:11:03,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:03,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:03,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:03,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:03,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:03,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 12:11:03,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:03,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-29 12:11:03,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:03,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:03,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 12:11:03,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:03,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 12:11:03,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:03,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:03,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:03,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:03,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:03,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 12:11:03,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:03,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-29 12:11:03,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:03,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:03,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 12:11:03,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:03,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-29 12:11:03,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:03,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:03,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:03,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:03,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:03,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 12:11:03,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:03,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 12:11:03,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:03,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:03,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 12:11:03,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:03,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-29 12:11:03,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:03,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:03,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:03,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:03,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:03,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:11:03,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:03,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 12:11:03,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:03,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:03,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 12:11:03,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:03,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 12:11:03,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:11:03,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:03,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:03,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:03,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:03,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:11:03,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:03,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 12:11:03,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:03,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:03,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:11:03,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:03,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 12:11:03,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:11:03,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:03,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:03,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:03,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:03,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:11:03,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:03,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:11:03,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:03,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:03,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:11:03,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:03,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:11:03,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:11:03,830 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 14 proven. 119 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-29 12:11:03,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [267794090] [2020-10-29 12:11:03,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:11:03,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-29 12:11:03,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578717659] [2020-10-29 12:11:03,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 12:11:03,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:11:03,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 12:11:03,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-29 12:11:03,839 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 15 states. [2020-10-29 12:11:04,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:11:04,408 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-10-29 12:11:04,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 12:11:04,409 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 63 [2020-10-29 12:11:04,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:11:04,410 INFO L225 Difference]: With dead ends: 49 [2020-10-29 12:11:04,410 INFO L226 Difference]: Without dead ends: 44 [2020-10-29 12:11:04,411 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=208, Invalid=442, Unknown=0, NotChecked=0, Total=650 [2020-10-29 12:11:04,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-29 12:11:04,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-10-29 12:11:04,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-29 12:11:04,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2020-10-29 12:11:04,420 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 63 [2020-10-29 12:11:04,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:11:04,420 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2020-10-29 12:11:04,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 12:11:04,420 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2020-10-29 12:11:04,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-29 12:11:04,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:11:04,422 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:11:04,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 12:11:04,422 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:11:04,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:11:04,422 INFO L82 PathProgramCache]: Analyzing trace with hash 273998991, now seen corresponding path program 9 times [2020-10-29 12:11:04,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:11:04,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1887667162] [2020-10-29 12:11:04,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:11:04,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:04,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:04,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:07,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:07,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-29 12:11:07,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:11:07,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3347 [2020-10-29 12:11:07,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:07,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:07,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-29 12:11:07,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 12:11:07,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-29 12:11:07,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:07,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:11:07,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:07,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:07,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:07,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:11:07,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:07,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:11:07,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:07,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:07,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:11:07,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:07,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:11:07,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:07,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:11:07,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:07,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:08,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:08,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 12:11:08,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:08,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-10-29 12:11:08,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:08,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:08,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-29 12:11:08,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:11:08,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-29 12:11:08,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:08,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:08,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:08,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:08,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 12:11:08,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:08,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-10-29 12:11:08,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:08,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:08,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 12:11:08,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:08,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 12:11:08,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:08,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:08,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:08,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:08,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:08,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-29 12:11:08,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:08,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-29 12:11:08,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:08,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:08,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 12:11:08,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:08,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-29 12:11:08,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:08,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:08,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:08,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:08,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-29 12:11:08,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:08,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-29 12:11:08,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:08,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:08,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 12:11:08,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:08,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-29 12:11:08,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:08,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:08,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:08,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:08,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:08,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 12:11:08,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:08,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-29 12:11:08,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:08,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:08,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 12:11:08,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:08,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 12:11:08,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:11:08,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:08,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:08,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:09,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:09,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 12:11:09,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:09,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-29 12:11:09,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:09,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:09,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 12:11:09,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:09,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-29 12:11:09,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:09,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:09,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:09,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:09,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:09,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 12:11:09,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:09,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-29 12:11:09,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:09,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:09,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 12:11:09,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:09,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-29 12:11:09,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:09,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:09,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:09,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:09,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:09,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:11:09,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:09,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 12:11:09,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:09,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:09,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 12:11:09,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:09,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 12:11:09,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:11:09,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:09,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:09,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:09,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:09,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:11:09,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:09,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:11:09,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:09,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:09,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:11:09,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:09,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 12:11:09,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:11:09,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:09,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:09,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:09,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:11:09,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:09,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:11:09,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:09,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:09,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:11:09,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:09,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:11:09,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:11:09,255 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 12 proven. 164 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-29 12:11:09,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1887667162] [2020-10-29 12:11:09,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:11:09,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-29 12:11:09,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129979219] [2020-10-29 12:11:09,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-29 12:11:09,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:11:09,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-29 12:11:09,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2020-10-29 12:11:09,258 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand 17 states. [2020-10-29 12:11:09,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:11:09,967 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-10-29 12:11:09,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 12:11:09,968 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 69 [2020-10-29 12:11:09,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:11:09,969 INFO L225 Difference]: With dead ends: 52 [2020-10-29 12:11:09,970 INFO L226 Difference]: Without dead ends: 47 [2020-10-29 12:11:09,971 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=258, Invalid=554, Unknown=0, NotChecked=0, Total=812 [2020-10-29 12:11:09,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-29 12:11:09,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-29 12:11:09,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-29 12:11:09,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2020-10-29 12:11:09,978 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 69 [2020-10-29 12:11:09,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:11:09,979 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2020-10-29 12:11:09,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-29 12:11:09,979 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2020-10-29 12:11:09,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-29 12:11:09,980 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:11:09,980 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:11:09,981 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 12:11:09,981 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:11:09,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:11:09,981 INFO L82 PathProgramCache]: Analyzing trace with hash -1458107067, now seen corresponding path program 10 times [2020-10-29 12:11:09,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:11:09,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1963702119] [2020-10-29 12:11:09,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:11:09,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:10,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:10,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:13,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:13,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-29 12:11:13,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:11:13,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3494 [2020-10-29 12:11:13,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:13,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:13,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-29 12:11:13,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 12:11:13,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-29 12:11:13,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:13,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:11:13,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:13,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:13,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:13,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:11:13,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:13,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:11:13,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:13,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:13,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:11:13,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:13,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:11:13,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:13,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:11:13,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:13,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:13,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:13,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-29 12:11:13,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:13,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-10-29 12:11:13,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:13,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:13,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-29 12:11:13,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:11:13,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 12:11:13,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:13,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:13,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:13,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:14,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:14,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 12:11:14,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:14,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-29 12:11:14,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:14,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:14,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-29 12:11:14,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:14,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-29 12:11:14,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:14,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:14,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:14,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:14,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:14,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 12:11:14,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:14,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-29 12:11:14,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:14,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:14,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 12:11:14,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:14,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 12:11:14,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:11:14,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:14,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:14,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:14,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-29 12:11:14,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:14,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-29 12:11:14,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:14,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:14,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 12:11:14,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:14,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-29 12:11:14,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:14,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:14,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:14,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:14,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:14,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-29 12:11:14,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:14,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-29 12:11:14,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:14,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:14,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 12:11:14,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:14,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-29 12:11:14,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:14,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:14,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:14,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:14,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:14,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 12:11:14,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:14,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 12:11:14,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:14,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:14,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 12:11:14,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:14,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 12:11:14,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:14,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:14,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:14,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:14,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:14,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 12:11:14,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:14,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 12:11:14,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:14,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:14,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 12:11:14,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:14,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-29 12:11:14,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:14,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:14,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:14,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:14,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:14,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 12:11:14,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:14,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 12:11:14,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:14,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:14,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 12:11:14,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:14,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-29 12:11:14,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:14,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:14,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:14,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:14,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:14,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:11:14,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:14,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 12:11:14,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:14,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:14,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 12:11:14,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:14,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 12:11:14,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:14,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:14,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:14,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:14,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:14,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:11:14,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:14,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:11:14,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:14,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:14,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:11:14,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:14,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 12:11:14,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:14,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:14,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:14,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:14,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:11:14,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:14,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:11:14,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:14,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:14,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:11:14,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:14,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:11:14,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:14,960 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 27 proven. 189 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-10-29 12:11:14,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1963702119] [2020-10-29 12:11:14,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:11:14,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-29 12:11:14,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48966539] [2020-10-29 12:11:14,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-29 12:11:14,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:11:14,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-29 12:11:14,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2020-10-29 12:11:14,962 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand 18 states. [2020-10-29 12:11:15,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:11:15,707 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-10-29 12:11:15,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 12:11:15,708 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 75 [2020-10-29 12:11:15,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:11:15,709 INFO L225 Difference]: With dead ends: 55 [2020-10-29 12:11:15,710 INFO L226 Difference]: Without dead ends: 50 [2020-10-29 12:11:15,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=301, Invalid=629, Unknown=0, NotChecked=0, Total=930 [2020-10-29 12:11:15,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-29 12:11:15,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-10-29 12:11:15,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-29 12:11:15,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-10-29 12:11:15,727 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 75 [2020-10-29 12:11:15,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:11:15,727 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-10-29 12:11:15,728 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-29 12:11:15,728 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-10-29 12:11:15,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-29 12:11:15,730 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:11:15,730 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:11:15,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 12:11:15,730 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:11:15,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:11:15,731 INFO L82 PathProgramCache]: Analyzing trace with hash -764791921, now seen corresponding path program 11 times [2020-10-29 12:11:15,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:11:15,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1534292121] [2020-10-29 12:11:15,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:11:15,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:15,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:15,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:19,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:19,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 12:11:19,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:11:19,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4022 [2020-10-29 12:11:19,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:19,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:19,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-29 12:11:19,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 12:11:19,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-29 12:11:19,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:19,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:11:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:19,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:19,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:19,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:11:19,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:19,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:11:19,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:19,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:19,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:11:19,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:19,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:11:19,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:19,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:11:19,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:19,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:20,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:20,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-29 12:11:20,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:20,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-10-29 12:11:20,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:20,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:20,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-29 12:11:20,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:11:20,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-29 12:11:20,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:20,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:20,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:20,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:20,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:20,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-29 12:11:20,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:20,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-10-29 12:11:20,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:20,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:20,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-29 12:11:20,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:20,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-29 12:11:20,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:20,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:20,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:20,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:20,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:20,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 12:11:20,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:20,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-29 12:11:20,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:20,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:20,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-29 12:11:20,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:20,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-29 12:11:20,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:20,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:20,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:20,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:20,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 12:11:20,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:20,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-29 12:11:20,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:20,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:20,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 12:11:20,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:20,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 12:11:20,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:20,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:20,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:20,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:20,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-29 12:11:20,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:20,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-29 12:11:20,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:20,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:20,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 12:11:20,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:20,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-29 12:11:20,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:20,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:20,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:20,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:21,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:21,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-29 12:11:21,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:21,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-29 12:11:21,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:21,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:21,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 12:11:21,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:21,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-29 12:11:21,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:11:21,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:21,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:21,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:21,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:21,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 12:11:21,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:21,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-29 12:11:21,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:21,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:21,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 12:11:21,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:21,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 12:11:21,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:21,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:21,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:21,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:21,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:21,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 12:11:21,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:21,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-29 12:11:21,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:21,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:21,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 12:11:21,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:21,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-29 12:11:21,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:21,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:21,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:21,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:21,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:21,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 12:11:21,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:21,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 12:11:21,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:21,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:21,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 12:11:21,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:21,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-29 12:11:21,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:21,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:21,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:21,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:21,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:21,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:11:21,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:21,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 12:11:21,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:21,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:21,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 12:11:21,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:21,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 12:11:21,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:11:21,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:21,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:21,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:21,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:21,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:11:21,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:21,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:11:21,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:21,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:21,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:11:21,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:21,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 12:11:21,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:11:21,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:21,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:21,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:21,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:21,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:11:21,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:21,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:11:21,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:21,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:21,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:11:21,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:21,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:11:21,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:11:21,593 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 47 proven. 215 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-29 12:11:21,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1534292121] [2020-10-29 12:11:21,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:11:21,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-29 12:11:21,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411444230] [2020-10-29 12:11:21,595 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 12:11:21,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:11:21,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 12:11:21,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2020-10-29 12:11:21,597 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 19 states. [2020-10-29 12:11:22,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:11:22,346 INFO L93 Difference]: Finished difference Result 58 states and 59 transitions. [2020-10-29 12:11:22,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 12:11:22,346 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 81 [2020-10-29 12:11:22,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:11:22,348 INFO L225 Difference]: With dead ends: 58 [2020-10-29 12:11:22,349 INFO L226 Difference]: Without dead ends: 53 [2020-10-29 12:11:22,350 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=341, Invalid=715, Unknown=0, NotChecked=0, Total=1056 [2020-10-29 12:11:22,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-29 12:11:22,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-10-29 12:11:22,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-29 12:11:22,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2020-10-29 12:11:22,358 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 81 [2020-10-29 12:11:22,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:11:22,358 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2020-10-29 12:11:22,358 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 12:11:22,358 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2020-10-29 12:11:22,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-29 12:11:22,359 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:11:22,359 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:11:22,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 12:11:22,360 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:11:22,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:11:22,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1532398651, now seen corresponding path program 12 times [2020-10-29 12:11:22,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:11:22,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1579632250] [2020-10-29 12:11:22,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:11:22,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:22,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:22,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:27,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:27,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-29 12:11:27,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:11:27,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4801 [2020-10-29 12:11:27,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:27,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:27,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-29 12:11:27,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 12:11:27,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-29 12:11:27,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:27,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:11:27,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:27,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:27,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:27,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:11:27,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:27,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:11:27,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:27,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:27,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:11:27,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:27,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:11:27,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:27,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:11:27,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:27,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:27,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:27,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-29 12:11:27,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:27,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-29 12:11:27,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:27,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:27,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-29 12:11:27,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:11:27,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-29 12:11:27,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:27,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:27,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:27,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:27,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:27,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-29 12:11:27,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:27,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-29 12:11:27,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:27,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:27,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-29 12:11:27,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:27,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-29 12:11:27,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:27,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:27,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:27,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:27,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:27,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-29 12:11:27,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:27,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-29 12:11:27,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:27,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:27,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-29 12:11:27,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:27,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-29 12:11:27,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:27,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:27,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:27,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:28,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:28,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 12:11:28,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:28,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-29 12:11:28,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:28,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:28,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-29 12:11:28,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:28,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-29 12:11:28,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:28,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:28,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:28,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:28,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:28,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 12:11:28,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:28,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-29 12:11:28,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:28,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:28,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 12:11:28,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:28,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 12:11:28,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:28,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:28,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:28,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:28,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:28,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-29 12:11:28,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:28,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-29 12:11:28,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:28,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:28,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 12:11:28,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:28,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-29 12:11:28,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:28,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:28,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:28,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:28,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:28,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-29 12:11:28,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:28,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-29 12:11:28,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:28,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:28,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 12:11:28,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:28,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-29 12:11:28,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:28,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:28,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:28,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:28,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:28,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 12:11:28,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:28,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 12:11:28,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:28,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:28,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 12:11:28,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:28,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 12:11:28,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:28,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:28,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:28,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:28,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:28,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 12:11:28,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:28,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 12:11:28,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:28,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:28,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 12:11:28,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:28,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-29 12:11:28,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:28,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:28,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:28,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:28,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:28,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 12:11:28,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:28,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 12:11:28,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:28,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:28,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 12:11:28,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:28,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-29 12:11:28,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:28,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:28,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:28,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:28,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:11:28,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:28,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 12:11:28,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:28,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:28,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 12:11:28,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:28,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 12:11:28,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:28,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:28,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:28,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:28,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:11:28,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:28,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:11:28,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:28,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:28,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:11:28,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:28,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 12:11:28,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:28,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:28,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:28,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:28,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:28,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:11:28,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:28,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:11:28,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:28,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:28,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:11:28,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:28,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:11:28,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:28,891 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 28 proven. 262 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2020-10-29 12:11:28,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1579632250] [2020-10-29 12:11:28,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:11:28,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-29 12:11:28,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308057156] [2020-10-29 12:11:28,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 12:11:28,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:11:28,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 12:11:28,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2020-10-29 12:11:28,894 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 19 states. [2020-10-29 12:11:29,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:11:29,758 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2020-10-29 12:11:29,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 12:11:29,759 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 87 [2020-10-29 12:11:29,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:11:29,760 INFO L225 Difference]: With dead ends: 61 [2020-10-29 12:11:29,760 INFO L226 Difference]: Without dead ends: 56 [2020-10-29 12:11:29,762 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=370, Invalid=752, Unknown=0, NotChecked=0, Total=1122 [2020-10-29 12:11:29,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-29 12:11:29,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-29 12:11:29,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-29 12:11:29,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2020-10-29 12:11:29,771 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 87 [2020-10-29 12:11:29,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:11:29,771 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2020-10-29 12:11:29,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 12:11:29,771 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2020-10-29 12:11:29,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-29 12:11:29,772 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:11:29,773 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:11:29,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 12:11:29,773 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:11:29,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:11:29,774 INFO L82 PathProgramCache]: Analyzing trace with hash -913821041, now seen corresponding path program 13 times [2020-10-29 12:11:29,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:11:29,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [160481690] [2020-10-29 12:11:29,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:11:29,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:29,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:29,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:34,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:34,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-29 12:11:34,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:11:34,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 12:11:34,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:34,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:34,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-29 12:11:34,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 12:11:34,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 12:11:34,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:34,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:11:34,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:34,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:34,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:34,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:11:34,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:34,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:11:34,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:34,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:34,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:11:34,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:34,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:11:34,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:34,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:11:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:34,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:35,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:35,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 12:11:35,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:35,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 378 [2020-10-29 12:11:35,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:35,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:35,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-29 12:11:35,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:11:35,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 12:11:35,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:35,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:35,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:35,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:35,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-29 12:11:35,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:35,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 496 [2020-10-29 12:11:35,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:35,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:35,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-29 12:11:35,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:35,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-29 12:11:35,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:35,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:35,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:35,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:36,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:36,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-29 12:11:36,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:36,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 363 [2020-10-29 12:11:36,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:36,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:36,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-29 12:11:36,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:36,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-29 12:11:36,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:11:36,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:36,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:36,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:36,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-29 12:11:36,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:36,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-10-29 12:11:36,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:36,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:36,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-29 12:11:36,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:36,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-29 12:11:36,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:36,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:36,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:36,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:36,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:36,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 12:11:36,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:36,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-10-29 12:11:36,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:36,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:36,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-29 12:11:36,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:36,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-29 12:11:36,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:36,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:36,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:36,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:36,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:36,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 12:11:36,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:36,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-29 12:11:36,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:36,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:36,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 12:11:36,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:36,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 12:11:36,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:37,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:37,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:37,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:37,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-29 12:11:37,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:37,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-29 12:11:37,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:37,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:37,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 12:11:37,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:37,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-29 12:11:37,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:37,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:37,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:37,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:37,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:37,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-29 12:11:37,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:37,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-29 12:11:37,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:37,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:37,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 12:11:37,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:37,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-29 12:11:37,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:37,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:37,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:37,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:37,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:37,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 12:11:37,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:37,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-29 12:11:37,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:37,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:37,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 12:11:37,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:37,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 12:11:37,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:37,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:37,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:37,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:37,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:37,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 12:11:37,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:37,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 12:11:37,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:37,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:37,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 12:11:37,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:37,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-29 12:11:37,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:37,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:37,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:37,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:37,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:37,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 12:11:37,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:37,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 12:11:37,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:37,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:37,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 12:11:37,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:37,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-29 12:11:37,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:37,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:37,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:37,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:37,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:37,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:11:37,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:37,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 12:11:37,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:37,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:37,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 12:11:37,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:37,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 12:11:37,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:37,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:37,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:37,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:37,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:37,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:11:37,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:37,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:11:37,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:37,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:37,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:11:37,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:37,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 12:11:37,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:37,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:37,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:37,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:37,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:11:37,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:37,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:11:37,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:37,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:37,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:11:37,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:37,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:11:37,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:37,654 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 25 proven. 338 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2020-10-29 12:11:37,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [160481690] [2020-10-29 12:11:37,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:11:37,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-29 12:11:37,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18764856] [2020-10-29 12:11:37,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-29 12:11:37,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:11:37,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-29 12:11:37,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=285, Unknown=0, NotChecked=0, Total=420 [2020-10-29 12:11:37,656 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand 21 states. [2020-10-29 12:11:38,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:11:38,510 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-10-29 12:11:38,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-29 12:11:38,511 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 93 [2020-10-29 12:11:38,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:11:38,512 INFO L225 Difference]: With dead ends: 64 [2020-10-29 12:11:38,513 INFO L226 Difference]: Without dead ends: 59 [2020-10-29 12:11:38,515 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=439, Invalid=893, Unknown=0, NotChecked=0, Total=1332 [2020-10-29 12:11:38,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-29 12:11:38,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-10-29 12:11:38,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-29 12:11:38,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2020-10-29 12:11:38,523 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 93 [2020-10-29 12:11:38,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:11:38,523 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2020-10-29 12:11:38,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-29 12:11:38,524 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2020-10-29 12:11:38,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-29 12:11:38,525 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:11:38,525 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:11:38,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 12:11:38,525 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:11:38,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:11:38,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1648421445, now seen corresponding path program 14 times [2020-10-29 12:11:38,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:11:38,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [167661888] [2020-10-29 12:11:38,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:11:38,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:38,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:38,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:43,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:43,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-29 12:11:43,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:11:43,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 12:11:43,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:43,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:43,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-29 12:11:43,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 12:11:43,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-29 12:11:43,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:43,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:11:43,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:43,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:43,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:43,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:11:43,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:43,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:11:43,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:43,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:43,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:11:43,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:43,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:11:43,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 12:11:43,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:11:43,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:43,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:44,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:44,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-29 12:11:44,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:44,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 525 [2020-10-29 12:11:44,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:44,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:44,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-29 12:11:44,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:11:44,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-29 12:11:44,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:44,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:44,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:44,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:44,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:44,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 12:11:44,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:44,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-10-29 12:11:44,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:44,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:44,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-29 12:11:44,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:44,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 12:11:44,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:44,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:44,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:44,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:44,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:44,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-29 12:11:44,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:44,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-10-29 12:11:44,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:44,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:44,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-29 12:11:44,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:44,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-29 12:11:44,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:44,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:44,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:44,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:45,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:45,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-29 12:11:45,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:45,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 293 [2020-10-29 12:11:45,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:45,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:45,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-29 12:11:45,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:45,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-29 12:11:45,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:45,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:45,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:45,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:45,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-29 12:11:45,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:45,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-10-29 12:11:45,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:45,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:45,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-29 12:11:45,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:45,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-29 12:11:45,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:45,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:45,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:45,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:45,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:45,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 12:11:45,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:45,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-29 12:11:45,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:45,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:45,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-29 12:11:45,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:45,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-29 12:11:45,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:45,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:45,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:45,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:45,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:45,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 12:11:45,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:45,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-29 12:11:45,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:45,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:45,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 12:11:45,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:45,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 12:11:45,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:45,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:45,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:45,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:45,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:45,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-29 12:11:45,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:45,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-29 12:11:45,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:45,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:45,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 12:11:45,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:45,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-29 12:11:45,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:45,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:45,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:46,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:46,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:46,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-29 12:11:46,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:46,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-29 12:11:46,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:46,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:46,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 12:11:46,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:46,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-29 12:11:46,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:46,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:46,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:46,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:46,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:46,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 12:11:46,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:46,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 12:11:46,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:46,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:46,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 12:11:46,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:46,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 12:11:46,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:46,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:46,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:46,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:46,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 12:11:46,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:46,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 12:11:46,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:46,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:46,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 12:11:46,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:46,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-29 12:11:46,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:46,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:46,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:46,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:46,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 12:11:46,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:46,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 12:11:46,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:46,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:46,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 12:11:46,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:46,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-29 12:11:46,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:46,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:46,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:46,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:46,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:46,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:11:46,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:46,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:11:46,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:46,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:46,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 12:11:46,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:46,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 12:11:46,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:46,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:46,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:46,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:46,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:46,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:11:46,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:46,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:11:46,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:46,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:46,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:11:46,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:46,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 12:11:46,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:46,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:46,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:46,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:46,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:11:46,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:46,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:11:46,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:46,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:46,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:11:46,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:46,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:11:46,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:46,498 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 50 proven. 355 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2020-10-29 12:11:46,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [167661888] [2020-10-29 12:11:46,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:11:46,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-29 12:11:46,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453499512] [2020-10-29 12:11:46,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-29 12:11:46,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:11:46,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-29 12:11:46,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=275, Unknown=0, NotChecked=0, Total=420 [2020-10-29 12:11:46,501 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand 21 states. [2020-10-29 12:11:47,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:11:47,463 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-10-29 12:11:47,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-29 12:11:47,464 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 99 [2020-10-29 12:11:47,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:11:47,465 INFO L225 Difference]: With dead ends: 67 [2020-10-29 12:11:47,465 INFO L226 Difference]: Without dead ends: 62 [2020-10-29 12:11:47,467 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=469, Invalid=937, Unknown=0, NotChecked=0, Total=1406 [2020-10-29 12:11:47,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-29 12:11:47,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-10-29 12:11:47,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-10-29 12:11:47,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 63 transitions. [2020-10-29 12:11:47,475 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 63 transitions. Word has length 99 [2020-10-29 12:11:47,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:11:47,475 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 63 transitions. [2020-10-29 12:11:47,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-29 12:11:47,475 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 63 transitions. [2020-10-29 12:11:47,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-29 12:11:47,476 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:11:47,477 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:11:47,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 12:11:47,477 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:11:47,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:11:47,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1745019279, now seen corresponding path program 15 times [2020-10-29 12:11:47,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:11:47,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1181318904] [2020-10-29 12:11:47,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:11:47,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:47,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:47,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:52,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:52,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 12:11:52,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:11:52,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 12:11:52,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:52,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:52,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-29 12:11:52,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 12:11:52,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 12:11:52,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:52,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:11:52,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:52,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:52,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:52,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:11:52,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:52,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:11:52,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:52,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:52,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:11:52,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:52,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:11:52,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:52,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:11:52,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:52,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:52,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:52,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-29 12:11:52,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:52,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 378 [2020-10-29 12:11:52,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:52,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:52,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-29 12:11:52,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:11:52,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-29 12:11:52,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:52,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:52,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:52,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:53,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:53,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-29 12:11:53,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:53,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 341 [2020-10-29 12:11:53,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:53,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:53,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-29 12:11:53,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:53,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-29 12:11:53,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:53,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:53,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:53,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:53,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:53,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 12:11:53,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:53,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-10-29 12:11:53,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:53,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:53,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-29 12:11:53,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:53,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 12:11:53,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:53,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:53,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:53,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:53,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:53,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-29 12:11:53,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:53,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-10-29 12:11:53,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:53,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:53,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-29 12:11:53,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:53,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-29 12:11:53,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:53,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:53,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:54,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:54,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:54,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-29 12:11:54,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:54,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-10-29 12:11:54,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:54,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:54,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-29 12:11:54,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:54,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-29 12:11:54,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:54,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:54,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:54,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:54,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:54,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-29 12:11:54,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:54,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-29 12:11:54,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:54,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:54,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-29 12:11:54,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:54,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-29 12:11:54,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:54,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:54,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:54,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:54,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:54,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 12:11:54,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:54,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-29 12:11:54,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:54,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:54,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-29 12:11:54,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:54,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-29 12:11:54,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:54,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:54,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:54,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:54,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:54,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 12:11:54,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:54,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-29 12:11:54,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:54,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:54,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 12:11:54,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:54,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 12:11:54,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:54,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:54,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:54,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:54,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:54,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-29 12:11:54,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:54,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-29 12:11:54,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:54,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:54,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 12:11:54,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:54,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-29 12:11:54,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:54,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:54,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:54,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:54,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:54,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-29 12:11:54,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:54,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-29 12:11:54,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:54,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:54,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 12:11:54,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:54,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-29 12:11:54,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:54,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:54,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:54,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:55,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:55,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 12:11:55,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:55,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-29 12:11:55,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:55,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:55,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 12:11:55,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:55,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 12:11:55,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:55,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:55,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:55,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:55,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 12:11:55,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:55,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 12:11:55,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:55,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:55,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 12:11:55,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:55,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-29 12:11:55,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:55,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:55,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:55,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:55,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:55,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 12:11:55,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:55,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 12:11:55,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:55,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:55,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 12:11:55,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:55,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-29 12:11:55,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:55,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:55,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:55,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:55,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:55,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:11:55,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:55,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:11:55,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:55,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:55,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 12:11:55,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:55,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 12:11:55,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:11:55,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:55,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:55,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:55,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:55,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:11:55,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:55,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:11:55,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:55,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:55,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:11:55,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:55,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 12:11:55,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:11:55,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:11:55,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:55,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:55,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:11:55,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:11:55,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:11:55,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:11:55,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:11:55,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:11:55,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:11:55,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:11:55,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:11:55,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:11:55,387 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 22 proven. 415 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2020-10-29 12:11:55,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1181318904] [2020-10-29 12:11:55,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:11:55,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-29 12:11:55,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684775458] [2020-10-29 12:11:55,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-29 12:11:55,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:11:55,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-29 12:11:55,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=380, Unknown=0, NotChecked=0, Total=552 [2020-10-29 12:11:55,389 INFO L87 Difference]: Start difference. First operand 62 states and 63 transitions. Second operand 24 states. [2020-10-29 12:11:56,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:11:56,448 INFO L93 Difference]: Finished difference Result 70 states and 71 transitions. [2020-10-29 12:11:56,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-29 12:11:56,450 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 105 [2020-10-29 12:11:56,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:11:56,451 INFO L225 Difference]: With dead ends: 70 [2020-10-29 12:11:56,451 INFO L226 Difference]: Without dead ends: 65 [2020-10-29 12:11:56,455 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=567, Invalid=1155, Unknown=0, NotChecked=0, Total=1722 [2020-10-29 12:11:56,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-29 12:11:56,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-10-29 12:11:56,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-29 12:11:56,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 66 transitions. [2020-10-29 12:11:56,467 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 66 transitions. Word has length 105 [2020-10-29 12:11:56,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:11:56,467 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 66 transitions. [2020-10-29 12:11:56,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-29 12:11:56,467 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions. [2020-10-29 12:11:56,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-29 12:11:56,476 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:11:56,476 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:11:56,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 12:11:56,477 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:11:56,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:11:56,477 INFO L82 PathProgramCache]: Analyzing trace with hash -345411387, now seen corresponding path program 16 times [2020-10-29 12:11:56,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:11:56,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1862223483] [2020-10-29 12:11:56,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:11:56,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:11:56,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:11:56,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:01,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:01,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-29 12:12:01,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:12:01,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 12:12:01,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:01,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:01,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-29 12:12:01,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 12:12:01,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 12:12:01,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:01,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:12:01,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:01,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:01,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:01,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:12:01,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:01,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:12:01,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:01,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:01,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:12:01,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:01,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:12:01,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:01,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:12:01,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:01,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:01,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:01,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-29 12:12:01,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:01,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 426 [2020-10-29 12:12:01,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:01,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:01,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-29 12:12:01,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:12:01,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-29 12:12:01,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:02,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:02,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:02,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:02,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:02,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-29 12:12:02,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:02,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 409 [2020-10-29 12:12:02,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:02,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:02,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-29 12:12:02,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:02,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-29 12:12:02,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:02,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:02,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:02,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:02,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:02,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-29 12:12:02,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:02,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 326 [2020-10-29 12:12:02,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:02,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:02,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-29 12:12:02,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:02,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-29 12:12:02,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:02,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:02,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:02,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:03,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:03,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 12:12:03,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:03,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-10-29 12:12:03,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:03,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:03,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-29 12:12:03,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:03,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 12:12:03,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:03,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:03,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:03,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:03,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:03,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-29 12:12:03,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:03,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-10-29 12:12:03,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:03,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:03,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-29 12:12:03,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:03,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-29 12:12:03,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:03,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:03,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:03,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:03,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:03,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-29 12:12:03,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:03,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-29 12:12:03,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:03,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:03,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-29 12:12:03,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:03,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-29 12:12:03,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:03,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:03,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:03,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:03,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:03,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-29 12:12:03,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:03,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-29 12:12:03,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:03,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:03,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-29 12:12:03,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:03,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-29 12:12:03,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:03,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:03,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:03,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:04,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:04,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 12:12:04,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:04,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-29 12:12:04,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:04,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:04,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-29 12:12:04,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:04,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-29 12:12:04,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:04,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:04,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:04,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:04,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:04,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 12:12:04,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:04,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-29 12:12:04,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:04,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:04,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 12:12:04,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:04,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 12:12:04,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:04,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:04,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:04,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:04,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:04,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-29 12:12:04,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:04,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-29 12:12:04,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:04,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:04,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 12:12:04,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:04,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-29 12:12:04,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:04,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:04,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:04,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:04,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:04,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-29 12:12:04,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:04,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-29 12:12:04,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:04,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:04,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 12:12:04,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:04,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-29 12:12:04,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:04,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:04,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:04,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:04,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:04,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 12:12:04,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:04,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-29 12:12:04,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:04,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:04,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 12:12:04,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:04,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 12:12:04,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:04,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:04,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:04,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:04,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:04,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 12:12:04,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:04,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 12:12:04,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:04,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:04,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 12:12:04,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:04,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-29 12:12:04,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:04,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:04,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:04,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:04,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:04,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 12:12:04,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:04,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 12:12:04,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:04,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:04,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 12:12:04,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:04,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-29 12:12:04,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:04,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:04,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:04,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:04,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:12:04,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:04,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 12:12:04,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:04,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:04,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 12:12:04,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:04,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 12:12:04,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:12:04,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:04,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:04,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:04,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:12:04,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:04,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:12:04,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:04,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:04,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:12:04,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:04,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 12:12:04,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:12:04,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:04,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:04,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:04,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:12:04,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:04,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:12:04,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:04,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:04,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:12:04,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:04,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:12:04,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:04,885 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 28 proven. 512 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2020-10-29 12:12:04,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1862223483] [2020-10-29 12:12:04,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:12:04,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-29 12:12:04,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978797617] [2020-10-29 12:12:04,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-29 12:12:04,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:12:04,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-29 12:12:04,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=366, Unknown=0, NotChecked=0, Total=552 [2020-10-29 12:12:04,888 INFO L87 Difference]: Start difference. First operand 65 states and 66 transitions. Second operand 24 states. [2020-10-29 12:12:05,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:12:05,949 INFO L93 Difference]: Finished difference Result 73 states and 74 transitions. [2020-10-29 12:12:05,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 12:12:05,949 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 111 [2020-10-29 12:12:05,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:12:05,951 INFO L225 Difference]: With dead ends: 73 [2020-10-29 12:12:05,951 INFO L226 Difference]: Without dead ends: 68 [2020-10-29 12:12:05,952 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=604, Invalid=1202, Unknown=0, NotChecked=0, Total=1806 [2020-10-29 12:12:05,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-29 12:12:05,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-10-29 12:12:05,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-29 12:12:05,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2020-10-29 12:12:05,960 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 111 [2020-10-29 12:12:05,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:12:05,961 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2020-10-29 12:12:05,961 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-29 12:12:05,961 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2020-10-29 12:12:05,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-29 12:12:05,962 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:12:05,962 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:12:05,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 12:12:05,963 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:12:05,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:12:05,963 INFO L82 PathProgramCache]: Analyzing trace with hash 1831747727, now seen corresponding path program 17 times [2020-10-29 12:12:05,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:12:05,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [478384180] [2020-10-29 12:12:05,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:12:05,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:05,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:06,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:10,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:10,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-29 12:12:10,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:12:10,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-29 12:12:10,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:10,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:10,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-29 12:12:10,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 12:12:10,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-29 12:12:10,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:11,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:12:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:11,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:11,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:11,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:12:11,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:11,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:12:11,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:11,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:11,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:12:11,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:11,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:12:11,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:11,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:12:11,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:11,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:11,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:11,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 12:12:11,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:11,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 573 [2020-10-29 12:12:11,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:11,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:11,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-29 12:12:11,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:12:11,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-29 12:12:11,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:11,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:11,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:11,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:12,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:12,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-29 12:12:12,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:12,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 442 [2020-10-29 12:12:12,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:12,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:12,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-29 12:12:12,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:12,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-29 12:12:12,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:12,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:12,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:12,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:12,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:12,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-29 12:12:12,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:12,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 411 [2020-10-29 12:12:12,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:12,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:12,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-29 12:12:12,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:12,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-29 12:12:12,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:12,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:12,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:12,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:12,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:12,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-29 12:12:12,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:12,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 331 [2020-10-29 12:12:12,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:12,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:12,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-29 12:12:12,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:12,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-29 12:12:12,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:12,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:12,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:13,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:13,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 12:12:13,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:13,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-10-29 12:12:13,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:13,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:13,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-29 12:12:13,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:13,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 12:12:13,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:13,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:13,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:13,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:13,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:13,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-29 12:12:13,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:13,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-29 12:12:13,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:13,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:13,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-29 12:12:13,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:13,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-29 12:12:13,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:13,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:13,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:13,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:13,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-29 12:12:13,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:13,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-29 12:12:13,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:13,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:13,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-29 12:12:13,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:13,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-29 12:12:13,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:13,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:13,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:13,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:13,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:13,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-29 12:12:13,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:13,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-10-29 12:12:13,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:13,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:13,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-29 12:12:14,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:14,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-29 12:12:14,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:14,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:14,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:14,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:14,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:14,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 12:12:14,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:14,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-29 12:12:14,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:14,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:14,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-29 12:12:14,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:14,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-29 12:12:14,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:14,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:14,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:14,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:14,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:14,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 12:12:14,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:14,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-29 12:12:14,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:14,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:14,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 12:12:14,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:14,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 12:12:14,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:14,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:14,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:14,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:14,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:14,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-29 12:12:14,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:14,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-29 12:12:14,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:14,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:14,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 12:12:14,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:14,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-29 12:12:14,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:14,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:14,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:14,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:14,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:14,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-29 12:12:14,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:14,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-29 12:12:14,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:14,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:14,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 12:12:14,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:14,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-29 12:12:14,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:14,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:14,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:14,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:14,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:14,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 12:12:14,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:14,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-29 12:12:14,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:14,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:14,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 12:12:14,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:14,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 12:12:14,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:14,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:14,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:14,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:14,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:14,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 12:12:14,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:14,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 12:12:14,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:14,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:14,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 12:12:14,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:14,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-29 12:12:14,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:14,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:14,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:14,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:14,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:14,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 12:12:14,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:14,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 12:12:14,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:14,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:14,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 12:12:14,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:14,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-29 12:12:14,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:14,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:14,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:14,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:14,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:14,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:12:14,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:14,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:12:14,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:14,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:14,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 12:12:14,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:14,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 12:12:14,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:14,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:14,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:14,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:14,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:14,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:12:14,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:14,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:12:14,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:14,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:14,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:12:14,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:14,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 12:12:14,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:14,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:14,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:14,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:14,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:14,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:12:14,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:14,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:12:14,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:14,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:14,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:12:14,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:14,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:12:14,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:15,082 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 91 proven. 504 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2020-10-29 12:12:15,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [478384180] [2020-10-29 12:12:15,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:12:15,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-29 12:12:15,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652353969] [2020-10-29 12:12:15,083 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-29 12:12:15,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:12:15,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-29 12:12:15,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=353, Unknown=0, NotChecked=0, Total=552 [2020-10-29 12:12:15,084 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand 24 states. [2020-10-29 12:12:16,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:12:16,218 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2020-10-29 12:12:16,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-29 12:12:16,225 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 117 [2020-10-29 12:12:16,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:12:16,226 INFO L225 Difference]: With dead ends: 76 [2020-10-29 12:12:16,226 INFO L226 Difference]: Without dead ends: 71 [2020-10-29 12:12:16,227 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=640, Invalid=1252, Unknown=0, NotChecked=0, Total=1892 [2020-10-29 12:12:16,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-29 12:12:16,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-10-29 12:12:16,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-29 12:12:16,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 72 transitions. [2020-10-29 12:12:16,233 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 72 transitions. Word has length 117 [2020-10-29 12:12:16,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:12:16,234 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 72 transitions. [2020-10-29 12:12:16,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-29 12:12:16,234 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 72 transitions. [2020-10-29 12:12:16,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-29 12:12:16,236 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:12:16,236 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:12:16,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-29 12:12:16,236 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:12:16,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:12:16,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1286539077, now seen corresponding path program 18 times [2020-10-29 12:12:16,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:12:16,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1054957843] [2020-10-29 12:12:16,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:12:16,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:16,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:16,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:21,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:21,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-29 12:12:21,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:12:21,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-29 12:12:21,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:21,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:21,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-29 12:12:21,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 12:12:21,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-29 12:12:21,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:21,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:12:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:21,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:21,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:21,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:12:21,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:21,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:12:21,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:21,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:21,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:12:21,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:21,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:12:21,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:21,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:12:21,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:21,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:21,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:21,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-29 12:12:21,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:21,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 530 [2020-10-29 12:12:21,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:21,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:21,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-29 12:12:21,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:12:21,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-29 12:12:21,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:21,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:21,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:21,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:22,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:22,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 12:12:22,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:22,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 484 [2020-10-29 12:12:22,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:22,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:22,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-29 12:12:22,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:22,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-29 12:12:22,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:22,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:22,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:22,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:22,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:22,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-29 12:12:22,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:22,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 418 [2020-10-29 12:12:22,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:22,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:22,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-29 12:12:22,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:22,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-29 12:12:22,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:22,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:22,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:22,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:23,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:23,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-29 12:12:23,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:23,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 416 [2020-10-29 12:12:23,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:23,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:23,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-29 12:12:23,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:23,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-29 12:12:23,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:23,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:23,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:23,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:23,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:23,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-29 12:12:23,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:23,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-10-29 12:12:23,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:23,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:23,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-29 12:12:23,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:23,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-29 12:12:23,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:23,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:23,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:23,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:23,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:23,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 12:12:23,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:23,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-10-29 12:12:23,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:23,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:23,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-29 12:12:23,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:23,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 12:12:23,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:23,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:24,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:24,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:24,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:24,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-29 12:12:24,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:24,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-10-29 12:12:24,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:24,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:24,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-29 12:12:24,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:24,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-29 12:12:24,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:24,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:24,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:24,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:24,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:24,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-29 12:12:24,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:24,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-29 12:12:24,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:24,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:24,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-29 12:12:24,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:24,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-29 12:12:24,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:24,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:24,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:24,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:24,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:24,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-29 12:12:24,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:24,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-29 12:12:24,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:24,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:24,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-29 12:12:24,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:24,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-29 12:12:24,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:24,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:24,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:24,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:24,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:24,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 12:12:24,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:24,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-29 12:12:24,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:24,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:24,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-29 12:12:24,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:24,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-29 12:12:24,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:24,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:24,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:24,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:24,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:24,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 12:12:24,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:24,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-29 12:12:24,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:24,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:24,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 12:12:24,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:24,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 12:12:24,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:25,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:25,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:25,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:25,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:25,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-29 12:12:25,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:25,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-29 12:12:25,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:25,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:25,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 12:12:25,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:25,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-29 12:12:25,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:25,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:25,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:25,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:25,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:25,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-29 12:12:25,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:25,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-29 12:12:25,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:25,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:25,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 12:12:25,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:25,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-29 12:12:25,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:25,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:25,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:25,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:25,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:25,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 12:12:25,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:25,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 12:12:25,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:25,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:25,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 12:12:25,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:25,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 12:12:25,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:25,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:25,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:25,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:25,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:25,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 12:12:25,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:25,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 12:12:25,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:25,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:25,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 12:12:25,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:25,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-29 12:12:25,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:25,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:25,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:25,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:25,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:25,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 12:12:25,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:25,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 12:12:25,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:25,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:25,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 12:12:25,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:25,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-29 12:12:25,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:25,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:25,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:25,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:25,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:25,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:12:25,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:25,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:12:25,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:25,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:25,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 12:12:25,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:25,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 12:12:25,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:25,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:25,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:25,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:25,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:12:25,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:25,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:12:25,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:25,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:25,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:12:25,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:25,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 12:12:25,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:25,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:25,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:25,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:25,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:25,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:12:25,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:25,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:12:25,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:25,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:25,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:12:25,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:25,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:12:25,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:25,638 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 64 proven. 592 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2020-10-29 12:12:25,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1054957843] [2020-10-29 12:12:25,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:12:25,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-29 12:12:25,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454728644] [2020-10-29 12:12:25,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-29 12:12:25,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:12:25,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-29 12:12:25,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=381, Unknown=0, NotChecked=0, Total=600 [2020-10-29 12:12:25,640 INFO L87 Difference]: Start difference. First operand 71 states and 72 transitions. Second operand 25 states. [2020-10-29 12:12:26,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:12:26,829 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-10-29 12:12:26,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-29 12:12:26,830 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 123 [2020-10-29 12:12:26,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:12:26,831 INFO L225 Difference]: With dead ends: 79 [2020-10-29 12:12:26,831 INFO L226 Difference]: Without dead ends: 74 [2020-10-29 12:12:26,833 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 398 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=703, Invalid=1367, Unknown=0, NotChecked=0, Total=2070 [2020-10-29 12:12:26,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-29 12:12:26,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-29 12:12:26,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-29 12:12:26,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 75 transitions. [2020-10-29 12:12:26,839 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 75 transitions. Word has length 123 [2020-10-29 12:12:26,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:12:26,839 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 75 transitions. [2020-10-29 12:12:26,839 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-29 12:12:26,840 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 75 transitions. [2020-10-29 12:12:26,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-29 12:12:26,841 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:12:26,841 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:12:26,841 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-29 12:12:26,841 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:12:26,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:12:26,842 INFO L82 PathProgramCache]: Analyzing trace with hash 626937743, now seen corresponding path program 19 times [2020-10-29 12:12:26,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:12:26,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1043898960] [2020-10-29 12:12:26,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:12:26,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:26,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:27,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:31,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:31,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-29 12:12:31,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:12:31,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-29 12:12:31,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:31,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:31,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-29 12:12:31,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 12:12:31,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-29 12:12:31,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:31,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:12:31,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:31,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:31,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:31,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:12:31,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:31,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:12:31,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:31,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:31,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:12:31,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:31,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:12:31,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:31,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:12:31,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:31,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:32,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:32,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-29 12:12:32,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:32,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 610 [2020-10-29 12:12:32,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:32,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:32,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-29 12:12:32,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:12:32,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-29 12:12:32,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:32,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:32,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:32,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:33,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:33,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-29 12:12:33,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:33,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 601 [2020-10-29 12:12:33,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:33,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:33,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-29 12:12:33,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:33,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-29 12:12:33,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:33,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:33,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:33,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:33,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 12:12:33,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:33,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 506 [2020-10-29 12:12:33,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:33,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:33,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-29 12:12:33,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:33,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-29 12:12:33,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:33,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:33,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:34,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:34,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-29 12:12:34,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:34,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 448 [2020-10-29 12:12:34,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:34,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:34,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-29 12:12:34,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:34,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-29 12:12:34,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:34,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:34,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:34,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:34,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-29 12:12:34,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:34,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 381 [2020-10-29 12:12:34,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:34,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:34,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-29 12:12:34,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:34,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-29 12:12:34,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:34,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:34,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:34,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:35,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:35,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-29 12:12:35,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:35,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-10-29 12:12:35,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:35,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:35,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-29 12:12:35,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:35,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-29 12:12:35,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:35,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:35,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:35,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:35,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:35,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 12:12:35,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:35,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-10-29 12:12:35,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:35,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:35,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-29 12:12:35,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:35,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 12:12:35,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:35,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:35,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:35,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:35,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:35,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-29 12:12:35,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:35,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-10-29 12:12:35,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:35,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:35,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-29 12:12:35,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:35,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-29 12:12:35,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:35,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:35,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:35,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:35,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:35,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-29 12:12:35,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:35,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-29 12:12:35,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:35,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:35,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-29 12:12:35,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:35,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-29 12:12:35,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:35,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:35,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:35,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:36,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:36,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-29 12:12:36,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:36,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-29 12:12:36,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:36,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:36,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-29 12:12:36,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:36,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-29 12:12:36,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:36,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:36,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:36,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:36,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:36,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 12:12:36,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:36,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-29 12:12:36,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:36,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:36,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-29 12:12:36,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:36,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-29 12:12:36,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:36,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:36,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:36,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:36,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:36,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 12:12:36,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:36,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-29 12:12:36,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:36,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:36,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 12:12:36,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:36,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 12:12:36,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:36,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:36,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:36,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:36,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:36,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-29 12:12:36,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:36,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-29 12:12:36,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:36,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:36,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 12:12:36,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:36,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-29 12:12:36,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:36,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:36,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:36,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:36,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:36,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-29 12:12:36,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:36,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-29 12:12:36,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:36,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:36,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 12:12:36,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:36,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-29 12:12:36,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:36,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:36,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:36,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:36,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:36,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 12:12:36,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:36,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-29 12:12:36,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:36,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:36,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 12:12:36,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:36,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 12:12:36,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:12:36,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:36,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:36,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:36,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:36,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 12:12:36,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:36,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 12:12:36,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:36,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:36,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 12:12:36,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:36,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-29 12:12:36,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:36,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:36,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:36,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:36,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 12:12:36,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:36,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 12:12:36,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:36,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:36,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 12:12:36,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:36,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-29 12:12:36,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:36,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:36,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:36,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:36,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:36,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:12:36,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:36,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:12:36,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:36,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:36,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 12:12:36,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:36,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 12:12:36,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:12:36,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:36,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:36,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:36,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:36,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:12:36,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:36,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:12:36,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:36,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:36,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:12:36,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:36,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 12:12:36,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:12:36,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:36,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:36,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:36,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:36,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:12:36,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:36,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:12:36,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:36,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:36,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:12:36,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:36,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:12:36,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:12:37,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 84 proven. 612 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2020-10-29 12:12:37,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1043898960] [2020-10-29 12:12:37,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:12:37,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-29 12:12:37,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291037778] [2020-10-29 12:12:37,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-29 12:12:37,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:12:37,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-29 12:12:37,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=410, Unknown=0, NotChecked=0, Total=650 [2020-10-29 12:12:37,068 INFO L87 Difference]: Start difference. First operand 74 states and 75 transitions. Second operand 26 states. [2020-10-29 12:12:38,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:12:38,381 INFO L93 Difference]: Finished difference Result 82 states and 83 transitions. [2020-10-29 12:12:38,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-29 12:12:38,382 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 129 [2020-10-29 12:12:38,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:12:38,383 INFO L225 Difference]: With dead ends: 82 [2020-10-29 12:12:38,383 INFO L226 Difference]: Without dead ends: 77 [2020-10-29 12:12:38,384 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=769, Invalid=1487, Unknown=0, NotChecked=0, Total=2256 [2020-10-29 12:12:38,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-29 12:12:38,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-10-29 12:12:38,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-29 12:12:38,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 78 transitions. [2020-10-29 12:12:38,391 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 78 transitions. Word has length 129 [2020-10-29 12:12:38,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:12:38,391 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 78 transitions. [2020-10-29 12:12:38,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-29 12:12:38,392 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 78 transitions. [2020-10-29 12:12:38,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-29 12:12:38,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:12:38,393 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:12:38,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-29 12:12:38,394 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:12:38,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:12:38,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1436396997, now seen corresponding path program 20 times [2020-10-29 12:12:38,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:12:38,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [62043077] [2020-10-29 12:12:38,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:12:38,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 12:12:38,419 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 12:12:38,419 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 12:12:38,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-29 12:12:38,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 12:12:38 BoogieIcfgContainer [2020-10-29 12:12:38,451 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 12:12:38,454 INFO L168 Benchmark]: Toolchain (without parser) took 117664.94 ms. Allocated memory was 151.0 MB in the beginning and 784.3 MB in the end (delta: 633.3 MB). Free memory was 126.4 MB in the beginning and 590.0 MB in the end (delta: -463.6 MB). Peak memory consumption was 170.7 MB. Max. memory is 8.0 GB. [2020-10-29 12:12:38,454 INFO L168 Benchmark]: CDTParser took 0.59 ms. Allocated memory is still 151.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 12:12:38,454 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.49 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 116.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-29 12:12:38,455 INFO L168 Benchmark]: Boogie Preprocessor took 36.63 ms. Allocated memory is still 151.0 MB. Free memory was 116.2 MB in the beginning and 115.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-29 12:12:38,455 INFO L168 Benchmark]: RCFGBuilder took 375.96 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 102.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-10-29 12:12:38,456 INFO L168 Benchmark]: TraceAbstraction took 116982.09 ms. Allocated memory was 151.0 MB in the beginning and 784.3 MB in the end (delta: 633.3 MB). Free memory was 102.2 MB in the beginning and 590.0 MB in the end (delta: -487.8 MB). Peak memory consumption was 146.6 MB. Max. memory is 8.0 GB. [2020-10-29 12:12:38,458 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59 ms. Allocated memory is still 151.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 257.49 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 116.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 36.63 ms. Allocated memory is still 151.0 MB. Free memory was 116.2 MB in the beginning and 115.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 375.96 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 102.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 116982.09 ms. Allocated memory was 151.0 MB in the beginning and 784.3 MB in the end (delta: 633.3 MB). Free memory was 102.2 MB in the beginning and 590.0 MB in the end (delta: -487.8 MB). Peak memory consumption was 146.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] int input = 20; [L13] CALL, EXPR id(input) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND FALSE !(x==0) [L8] CALL, EXPR id(x-1) [L7] COND TRUE x==0 [L7] return 0; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) [L8] return id(x-1) + 1; [L13] RET, EXPR id(input) [L13] int result = id(input); [L14] COND TRUE result == 20 [L15] CALL reach_error() [L4] __assert_fail("0", "id_i20_o20-2.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 116.8s, OverallIterations: 21, TraceHistogramMax: 21, AutomataDifference: 14.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 284 SDtfs, 1453 SDslu, 604 SDs, 0 SdLazy, 1741 SolverSat, 812 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 983 GetRequests, 432 SyntacticMatches, 3 SemanticMatches, 548 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3357 ImplicationChecksByTransitivity, 14.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 20 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 101.4s InterpolantComputationTime, 1575 NumberOfCodeBlocks, 1575 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1420 ConstructedInterpolants, 0 QuantifiedInterpolants, 362220 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 1 PerfectInterpolantSequences, 3052/7600 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...