/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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 SingleStatement --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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_5-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:19:45,227 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:19:45,231 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:19:45,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:19:45,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:19:45,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:19:45,262 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:19:45,264 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:19:45,266 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:19:45,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:19:45,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:19:45,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:19:45,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:19:45,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:19:45,272 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:19:45,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:19:45,275 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:19:45,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:19:45,278 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:19:45,281 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:19:45,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:19:45,284 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:19:45,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:19:45,286 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:19:45,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:19:45,290 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:19:45,290 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:19:45,291 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:19:45,292 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:19:45,293 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:19:45,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:19:45,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:19:45,295 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:19:45,296 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:19:45,297 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:19:45,298 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:19:45,299 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:19:45,299 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:19:45,299 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:19:45,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:19:45,301 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:19:45,302 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 [2020-09-24 19:19:45,344 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:19:45,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:19:45,346 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:19:45,346 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:19:45,346 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:19:45,347 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:19:45,348 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:19:45,348 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:19:45,348 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:19:45,348 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:19:45,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:19:45,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:19:45,350 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:19:45,350 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:19:45,350 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:19:45,350 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:19:45,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:19:45,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:19:45,351 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:19:45,351 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:19:45,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:19:45,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:19:45,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:19:45,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:19:45,353 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:19:45,353 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:19:45,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:19:45,353 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:19:45,354 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:19:45,354 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> SingleStatement 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=1000;interpolation-heuristic=SMALLEST;log-additional-information=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=1000;interpolation-heuristic=SMALLEST;log-additional-information=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=1000;interpolation-heuristic=SMALLEST;log-additional-information=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=1000;interpolation-heuristic=SMALLEST;log-additional-information=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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:19:45,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:19:45,832 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:19:45,836 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:19:45,838 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:19:45,839 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:19:45,840 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_5-2.c [2020-09-24 19:19:45,922 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/26cb3b4f5/007095068ea24480ac8554343eed98ae/FLAG448ad96b6 [2020-09-24 19:19:46,468 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:19:46,469 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_5-2.c [2020-09-24 19:19:46,478 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/26cb3b4f5/007095068ea24480ac8554343eed98ae/FLAG448ad96b6 [2020-09-24 19:19:46,819 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/26cb3b4f5/007095068ea24480ac8554343eed98ae [2020-09-24 19:19:46,832 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:19:46,839 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:19:46,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:19:46,840 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:19:46,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:19:46,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:19:46" (1/1) ... [2020-09-24 19:19:46,850 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51d7e22e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:46, skipping insertion in model container [2020-09-24 19:19:46,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:19:46" (1/1) ... [2020-09-24 19:19:46,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:19:46,888 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:19:47,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:19:47,124 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:19:47,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:19:47,161 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:19:47,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:47 WrapperNode [2020-09-24 19:19:47,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:19:47,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:19:47,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:19:47,166 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:19:47,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:47" (1/1) ... [2020-09-24 19:19:47,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:47" (1/1) ... [2020-09-24 19:19:47,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:47" (1/1) ... [2020-09-24 19:19:47,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:47" (1/1) ... [2020-09-24 19:19:47,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:47" (1/1) ... [2020-09-24 19:19:47,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:47" (1/1) ... [2020-09-24 19:19:47,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:47" (1/1) ... [2020-09-24 19:19:47,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:19:47,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:19:47,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:19:47,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:19:47,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:47" (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 [2020-09-24 19:19:47,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:19:47,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:19:47,360 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-24 19:19:47,360 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-24 19:19:47,360 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:19:47,360 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:19:47,360 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:19:47,361 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-24 19:19:47,361 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-24 19:19:47,361 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:19:47,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:19:47,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:19:47,623 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:19:47,623 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 19:19:47,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:19:47 BoogieIcfgContainer [2020-09-24 19:19:47,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:19:47,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:19:47,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:19:47,663 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:19:47,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:19:46" (1/3) ... [2020-09-24 19:19:47,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6795e57e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:19:47, skipping insertion in model container [2020-09-24 19:19:47,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:47" (2/3) ... [2020-09-24 19:19:47,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6795e57e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:19:47, skipping insertion in model container [2020-09-24 19:19:47,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:19:47" (3/3) ... [2020-09-24 19:19:47,667 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_5-2.c [2020-09-24 19:19:47,680 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:19:47,692 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:19:47,717 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:19:47,749 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:19:47,749 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:19:47,750 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:19:47,750 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:19:47,750 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:19:47,750 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:19:47,750 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:19:47,750 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:19:47,774 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-24 19:19:47,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-24 19:19:47,781 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:19:47,783 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:19:47,783 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:19:47,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:19:47,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-09-24 19:19:47,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:19:47,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1334950315] [2020-09-24 19:19:47,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:19:47,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:47,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:47,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:48,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:48,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 19:19:48,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:19:48,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-09-24 19:19:48,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:48,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:19:48,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-24 19:19:48,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:19:48,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 19:19:48,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:19:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:48,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:48,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:48,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:19:48,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:48,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:19:48,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:48,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:48,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:48,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:48,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:19:48,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:19:48,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:48,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:48,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:48,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:19:48,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:48,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 19:19:48,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:48,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:19:48,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:48,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:19:48,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:19:48,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:19:48,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1334950315] [2020-09-24 19:19:48,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:19:48,315 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:19:48,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883601742] [2020-09-24 19:19:48,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:19:48,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:19:48,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:19:48,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:19:48,343 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-09-24 19:19:48,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:19:48,445 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-24 19:19:48,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 19:19:48,447 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-24 19:19:48,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:19:48,462 INFO L225 Difference]: With dead ends: 58 [2020-09-24 19:19:48,462 INFO L226 Difference]: Without dead ends: 42 [2020-09-24 19:19:48,467 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:19:48,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-24 19:19:48,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-24 19:19:48,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-24 19:19:48,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-24 19:19:48,551 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-09-24 19:19:48,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:19:48,552 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-24 19:19:48,552 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:19:48,553 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-24 19:19:48,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-24 19:19:48,556 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:19:48,556 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:19:48,557 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:19:48,557 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:19:48,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:19:48,557 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-09-24 19:19:48,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:19:48,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1838386487] [2020-09-24 19:19:48,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:19:48,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:48,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:48,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:48,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:48,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 19:19:48,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:19:48,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-09-24 19:19:48,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:48,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:19:48,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 19:19:48,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:19:48,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:19:48,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:19:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:48,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:48,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:48,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:19:48,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:48,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:19:48,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:48,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:48,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:48,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:48,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:48,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:19:48,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:48,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:48,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:48,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:19:48,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:48,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 19:19:48,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:48,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:19:48,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:48,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:19:48,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:48,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:19:48,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1838386487] [2020-09-24 19:19:48,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:19:48,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:19:48,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325392265] [2020-09-24 19:19:48,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:19:48,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:19:48,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:19:48,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:19:48,869 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-09-24 19:19:48,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:19:48,906 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-09-24 19:19:48,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 19:19:48,907 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-24 19:19:48,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:19:48,909 INFO L225 Difference]: With dead ends: 50 [2020-09-24 19:19:48,909 INFO L226 Difference]: Without dead ends: 44 [2020-09-24 19:19:48,910 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:19:48,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-24 19:19:48,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-24 19:19:48,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-24 19:19:48,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-24 19:19:48,921 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-09-24 19:19:48,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:19:48,921 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-24 19:19:48,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:19:48,922 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-24 19:19:48,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-24 19:19:48,924 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:19:48,924 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:19:48,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:19:48,925 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:19:48,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:19:48,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-09-24 19:19:48,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:19:48,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [994233540] [2020-09-24 19:19:48,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:19:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:48,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:48,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:49,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:49,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:49,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:49,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-24 19:19:49,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:19:49,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-24 19:19:49,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:49,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:19:49,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:19:49,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:19:49,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:49,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:19:49,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:49,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:49,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:49,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:19:49,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:49,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:19:49,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:49,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:49,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:49,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:49,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:49,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:19:49,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:49,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:50,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:50,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 19:19:50,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:50,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 19:19:50,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:50,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:19:50,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 19:19:50,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:19:50,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:50,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:19:50,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:50,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:50,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:50,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:19:50,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:50,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:19:50,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:50,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:19:50,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:19:50,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:19:50,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:50,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 19:19:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:50,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:50,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:50,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:19:50,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:50,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:19:50,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:50,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:50,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:19:50,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:50,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:50,077 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 19:19:50,077 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [994233540] [2020-09-24 19:19:50,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:19:50,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-24 19:19:50,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798063544] [2020-09-24 19:19:50,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:19:50,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:19:50,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:19:50,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:19:50,080 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 6 states. [2020-09-24 19:19:50,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:19:50,174 INFO L93 Difference]: Finished difference Result 82 states and 102 transitions. [2020-09-24 19:19:50,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 19:19:50,175 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-09-24 19:19:50,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:19:50,177 INFO L225 Difference]: With dead ends: 82 [2020-09-24 19:19:50,177 INFO L226 Difference]: Without dead ends: 46 [2020-09-24 19:19:50,178 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:19:50,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-24 19:19:50,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2020-09-24 19:19:50,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-09-24 19:19:50,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2020-09-24 19:19:50,188 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 33 [2020-09-24 19:19:50,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:19:50,189 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2020-09-24 19:19:50,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:19:50,189 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2020-09-24 19:19:50,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-24 19:19:50,191 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:19:50,191 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:19:50,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:19:50,192 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:19:50,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:19:50,193 INFO L82 PathProgramCache]: Analyzing trace with hash 887160861, now seen corresponding path program 1 times [2020-09-24 19:19:50,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:19:50,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [962288952] [2020-09-24 19:19:50,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:19:50,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:50,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:50,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:50,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:51,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:51,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 19:19:51,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:19:51,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1004 [2020-09-24 19:19:51,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:51,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:19:51,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:19:51,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 19:19:51,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:51,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:19:51,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:51,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:51,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:51,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:19:51,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:51,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:19:51,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:51,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:51,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:51,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:51,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:51,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:19:51,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:51,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:51,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:51,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:51,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:19:51,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:19:51,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-09-24 19:19:51,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:51,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:19:51,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:19:51,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:19:51,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:51,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:19:51,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:51,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:51,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:51,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:19:51,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:51,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 19:19:51,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:51,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:19:51,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:51,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:19:51,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:51,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:19:51,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:51,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:51,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:51,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:19:51,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:51,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:19:51,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:51,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:19:51,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:51,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:19:51,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:51,611 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 19:19:51,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [962288952] [2020-09-24 19:19:51,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:19:51,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 19:19:51,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051584863] [2020-09-24 19:19:51,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:19:51,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:19:51,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:19:51,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:19:51,614 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand 7 states. [2020-09-24 19:19:51,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:19:51,783 INFO L93 Difference]: Finished difference Result 60 states and 72 transitions. [2020-09-24 19:19:51,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:19:51,784 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2020-09-24 19:19:51,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:19:51,786 INFO L225 Difference]: With dead ends: 60 [2020-09-24 19:19:51,787 INFO L226 Difference]: Without dead ends: 54 [2020-09-24 19:19:51,787 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:19:51,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-24 19:19:51,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2020-09-24 19:19:51,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-09-24 19:19:51,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 63 transitions. [2020-09-24 19:19:51,800 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 63 transitions. Word has length 34 [2020-09-24 19:19:51,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:19:51,800 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 63 transitions. [2020-09-24 19:19:51,800 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:19:51,801 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 63 transitions. [2020-09-24 19:19:51,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-24 19:19:51,803 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:19:51,803 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:19:51,803 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:19:51,804 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:19:51,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:19:51,804 INFO L82 PathProgramCache]: Analyzing trace with hash 1875452576, now seen corresponding path program 1 times [2020-09-24 19:19:51,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:19:51,805 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [947770434] [2020-09-24 19:19:51,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:19:51,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:51,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:51,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:51,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:51,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:52,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:52,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 19:19:52,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:19:52,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:19:52,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:52,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:19:52,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-24 19:19:52,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:19:52,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:52,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:19:52,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:52,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:52,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:52,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:19:52,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:52,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:19:52,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:52,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:52,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:52,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:52,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:52,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:19:52,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:52,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:52,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:52,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:53,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:53,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:53,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 19:19:53,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:19:53,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-24 19:19:53,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:53,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:19:53,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-24 19:19:53,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:19:53,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:19:53,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:19:53,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:53,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:53,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:53,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 19:19:53,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:53,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 19:19:53,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:53,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:19:53,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 19:19:53,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:19:53,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:53,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:19:53,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:53,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:53,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:53,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:19:53,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:53,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:19:53,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:53,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:19:53,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:19:53,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:19:53,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:53,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 19:19:53,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:53,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:53,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:53,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:19:53,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:53,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:19:53,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:53,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:53,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:19:53,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:53,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:53,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-24 19:19:53,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:53,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:53,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:53,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:19:53,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:53,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:19:53,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:53,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:53,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:19:53,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:53,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:53,992 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 19:19:53,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [947770434] [2020-09-24 19:19:53,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:19:53,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-24 19:19:53,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740433233] [2020-09-24 19:19:53,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:19:53,996 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:19:53,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:19:53,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:19:53,996 INFO L87 Difference]: Start difference. First operand 52 states and 63 transitions. Second operand 6 states. [2020-09-24 19:19:54,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:19:54,097 INFO L93 Difference]: Finished difference Result 100 states and 130 transitions. [2020-09-24 19:19:54,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 19:19:54,097 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2020-09-24 19:19:54,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:19:54,099 INFO L225 Difference]: With dead ends: 100 [2020-09-24 19:19:54,099 INFO L226 Difference]: Without dead ends: 54 [2020-09-24 19:19:54,100 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:19:54,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-24 19:19:54,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-09-24 19:19:54,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-24 19:19:54,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2020-09-24 19:19:54,123 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 50 [2020-09-24 19:19:54,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:19:54,124 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2020-09-24 19:19:54,124 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:19:54,124 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2020-09-24 19:19:54,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-24 19:19:54,131 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:19:54,132 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:19:54,132 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:19:54,132 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:19:54,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:19:54,133 INFO L82 PathProgramCache]: Analyzing trace with hash 104828256, now seen corresponding path program 1 times [2020-09-24 19:19:54,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:19:54,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [304143610] [2020-09-24 19:19:54,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:19:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:54,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:54,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:54,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:54,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:54,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:54,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:54,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:55,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:55,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-24 19:19:55,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:19:55,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:19:55,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:55,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:19:55,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:19:55,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-24 19:19:55,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:19:55,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:19:55,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:55,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:55,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:55,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:19:55,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:55,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:19:55,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:55,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:55,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:55,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:55,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:55,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:19:55,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:55,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:55,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:55,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:55,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:55,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:55,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:56,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:56,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-24 19:19:56,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:19:56,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:19:56,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:56,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:19:56,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:19:56,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-24 19:19:56,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:56,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:19:56,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:56,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:56,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:56,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:19:56,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:56,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 19:19:56,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:56,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:19:56,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:56,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:19:56,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:56,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:19:56,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:56,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:56,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:56,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:19:56,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:56,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:19:56,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:56,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:56,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:56,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:56,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:56,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:19:56,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:56,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:56,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:56,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:19:56,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:56,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:19:56,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:56,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:56,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:56,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:56,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:19:56,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:19:56,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:56,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:56,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:56,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:19:56,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:56,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:19:56,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:56,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:19:56,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:56,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:19:56,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:56,357 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-24 19:19:56,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [304143610] [2020-09-24 19:19:56,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:19:56,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 19:19:56,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749528570] [2020-09-24 19:19:56,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:19:56,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:19:56,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:19:56,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:19:56,362 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand 7 states. [2020-09-24 19:19:56,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:19:56,493 INFO L93 Difference]: Finished difference Result 72 states and 85 transitions. [2020-09-24 19:19:56,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:19:56,494 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-09-24 19:19:56,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:19:56,496 INFO L225 Difference]: With dead ends: 72 [2020-09-24 19:19:56,497 INFO L226 Difference]: Without dead ends: 66 [2020-09-24 19:19:56,500 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:19:56,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-24 19:19:56,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2020-09-24 19:19:56,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-24 19:19:56,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2020-09-24 19:19:56,517 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 51 [2020-09-24 19:19:56,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:19:56,518 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2020-09-24 19:19:56,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:19:56,518 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2020-09-24 19:19:56,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-24 19:19:56,524 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:19:56,524 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:19:56,524 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:19:56,525 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:19:56,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:19:56,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1703786405, now seen corresponding path program 1 times [2020-09-24 19:19:56,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:19:56,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1449735237] [2020-09-24 19:19:56,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:19:56,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:56,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:56,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:56,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:57,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:57,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:57,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-24 19:19:57,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:19:57,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:19:57,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:57,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:19:57,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:19:57,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-24 19:19:57,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:57,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:19:57,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:57,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:57,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:57,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:19:57,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:57,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:19:57,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:57,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:57,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:57,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:57,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:57,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:19:57,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:57,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:57,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:57,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:58,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:58,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:19:58,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:19:58,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:19:58,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:58,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:19:58,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:19:58,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 19:19:58,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:58,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:19:58,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:58,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:58,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:58,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:19:58,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:58,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 19:19:58,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:58,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:19:58,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:58,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:19:58,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:58,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:19:58,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:58,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:58,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:58,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:19:58,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:58,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:19:58,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:58,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:58,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:58,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:58,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:19:58,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:19:58,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:58,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:58,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:58,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:19:58,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:58,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:19:58,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:58,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:58,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:58,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:58,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:58,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:19:58,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:58,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:58,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:58,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:19:58,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:58,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 19:19:58,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:58,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:19:58,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:58,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:19:58,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:58,724 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-24 19:19:58,725 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1449735237] [2020-09-24 19:19:58,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:19:58,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 19:19:58,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824025100] [2020-09-24 19:19:58,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:19:58,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:19:58,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:19:58,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:19:58,729 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand 7 states. [2020-09-24 19:19:58,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:19:58,872 INFO L93 Difference]: Finished difference Result 72 states and 85 transitions. [2020-09-24 19:19:58,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:19:58,873 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2020-09-24 19:19:58,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:19:58,875 INFO L225 Difference]: With dead ends: 72 [2020-09-24 19:19:58,875 INFO L226 Difference]: Without dead ends: 66 [2020-09-24 19:19:58,876 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:19:58,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-24 19:19:58,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2020-09-24 19:19:58,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-24 19:19:58,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2020-09-24 19:19:58,891 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 52 [2020-09-24 19:19:58,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:19:58,891 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2020-09-24 19:19:58,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:19:58,892 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2020-09-24 19:19:58,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-24 19:19:58,893 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:19:58,894 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:19:58,894 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:19:58,894 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:19:58,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:19:58,895 INFO L82 PathProgramCache]: Analyzing trace with hash -387134248, now seen corresponding path program 1 times [2020-09-24 19:19:58,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:19:58,895 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1457371656] [2020-09-24 19:19:58,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:19:58,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:58,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:58,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:58,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:59,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:59,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:59,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:59,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:59,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:59,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-24 19:19:59,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:19:59,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:19:59,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:59,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:19:59,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-24 19:19:59,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 19:19:59,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:59,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:19:59,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:59,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:59,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:59,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:19:59,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:59,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:19:59,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:59,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:59,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:59,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:59,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:59,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:19:59,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:59,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:59,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:00,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:00,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:00,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:00,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:00,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:00,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:00,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:00,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:00,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 19:20:00,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-24 19:20:00,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:20:00,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:00,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:00,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:20:00,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 19:20:00,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:00,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:00,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:00,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:01,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:01,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:01,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:01,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:01,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:20:01,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 375 [2020-09-24 19:20:01,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:01,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:20:01,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:01,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 19:20:01,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:01,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:01,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:01,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:01,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:01,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:01,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 19:20:01,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:01,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:01,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:01,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:20:01,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:01,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:01,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:01,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:01,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:01,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:01,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:01,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:20:01,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:01,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:01,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:01,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:01,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:01,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:01,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:01,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:01,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:01,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:01,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:01,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:01,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:20:01,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-09-24 19:20:01,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:01,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:20:01,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:01,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:20:01,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:01,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:01,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:01,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:01,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:01,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:01,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:01,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:20:01,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:01,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:01,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:01,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:20:01,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:01,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:01,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:01,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:01,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:01,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:01,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:01,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:20:01,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:01,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:01,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:01,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:01,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:01,753 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 10 proven. 22 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-09-24 19:20:01,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1457371656] [2020-09-24 19:20:01,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:20:01,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 19:20:01,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217147418] [2020-09-24 19:20:01,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:20:01,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:20:01,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:20:01,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:20:01,758 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand 9 states. [2020-09-24 19:20:01,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:20:01,995 INFO L93 Difference]: Finished difference Result 120 states and 165 transitions. [2020-09-24 19:20:01,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 19:20:01,996 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-09-24 19:20:01,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:20:01,998 INFO L225 Difference]: With dead ends: 120 [2020-09-24 19:20:01,998 INFO L226 Difference]: Without dead ends: 72 [2020-09-24 19:20:02,002 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-09-24 19:20:02,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-09-24 19:20:02,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-09-24 19:20:02,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-09-24 19:20:02,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 91 transitions. [2020-09-24 19:20:02,019 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 91 transitions. Word has length 69 [2020-09-24 19:20:02,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:20:02,020 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 91 transitions. [2020-09-24 19:20:02,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:20:02,020 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 91 transitions. [2020-09-24 19:20:02,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-09-24 19:20:02,027 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:20:02,027 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:20:02,027 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 19:20:02,028 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:20:02,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:20:02,028 INFO L82 PathProgramCache]: Analyzing trace with hash -271039366, now seen corresponding path program 1 times [2020-09-24 19:20:02,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:20:02,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [452184836] [2020-09-24 19:20:02,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:20:02,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:02,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:02,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:02,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:02,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:02,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:02,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:02,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:02,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:02,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:02,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:03,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:03,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-24 19:20:03,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-24 19:20:03,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:20:03,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:03,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:20:03,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 19:20:03,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 19:20:03,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:03,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:20:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:03,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:03,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:03,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:20:03,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:03,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:20:03,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:03,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:03,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:03,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:03,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:03,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:20:03,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:03,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:03,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:03,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:03,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:03,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:03,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:03,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:03,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:04,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:04,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-09-24 19:20:04,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 19:20:04,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1005 [2020-09-24 19:20:04,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:04,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:20:04,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-24 19:20:04,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 19:20:04,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:04,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:04,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:04,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:04,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:04,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:04,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:05,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:05,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-24 19:20:05,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:20:05,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:20:05,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:05,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:20:05,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:20:05,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 19:20:05,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:05,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:05,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:05,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:05,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:05,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:05,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:05,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:20:05,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-24 19:20:05,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:05,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:05,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:05,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 19:20:05,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:05,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:05,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:05,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:05,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:05,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:05,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:05,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:20:05,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:05,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:05,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:05,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:20:05,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:05,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:05,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:05,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:05,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:05,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:05,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:05,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:20:05,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:05,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:05,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:05,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:05,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:05,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:05,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:05,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:05,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:05,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:05,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:05,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:20:05,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:05,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:20:05,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:05,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:05,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:05,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-24 19:20:05,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:05,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:05,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:05,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:05,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:05,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:05,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:05,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:06,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:06,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 19:20:06,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:20:06,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:20:06,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:06,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:20:06,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:20:06,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 19:20:06,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:06,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:06,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:06,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:06,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:06,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:06,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:06,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:07,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:07,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:07,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:20:07,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:20:07,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:07,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:07,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:07,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 19:20:07,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:07,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:07,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:07,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:07,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:07,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:07,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 19:20:07,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:07,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:07,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:07,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:20:07,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:07,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:07,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:07,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:07,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:07,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:07,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:07,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:07,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:07,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:07,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:07,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:07,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:07,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:07,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:07,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:07,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:07,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:07,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:07,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:07,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:07,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:07,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:07,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:07,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:07,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:07,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:07,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:07,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:07,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:07,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:07,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:20:07,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:07,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:07,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:07,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:20:07,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:07,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:20:07,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:07,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:07,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:07,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:07,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:07,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:20:07,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:07,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:20:07,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:07,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:07,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:07,662 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 60 proven. 40 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2020-09-24 19:20:07,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [452184836] [2020-09-24 19:20:07,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:20:07,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 19:20:07,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304906434] [2020-09-24 19:20:07,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:20:07,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:20:07,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:20:07,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:20:07,672 INFO L87 Difference]: Start difference. First operand 72 states and 91 transitions. Second operand 9 states. [2020-09-24 19:20:07,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:20:07,783 INFO L93 Difference]: Finished difference Result 144 states and 198 transitions. [2020-09-24 19:20:07,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:20:07,784 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 121 [2020-09-24 19:20:07,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:20:07,785 INFO L225 Difference]: With dead ends: 144 [2020-09-24 19:20:07,785 INFO L226 Difference]: Without dead ends: 78 [2020-09-24 19:20:07,786 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:20:07,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-09-24 19:20:07,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 72. [2020-09-24 19:20:07,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-09-24 19:20:07,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 90 transitions. [2020-09-24 19:20:07,796 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 90 transitions. Word has length 121 [2020-09-24 19:20:07,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:20:07,796 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 90 transitions. [2020-09-24 19:20:07,796 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:20:07,796 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 90 transitions. [2020-09-24 19:20:07,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-24 19:20:07,798 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:20:07,798 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:20:07,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 19:20:07,798 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:20:07,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:20:07,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1951493560, now seen corresponding path program 2 times [2020-09-24 19:20:07,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:20:07,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [782667056] [2020-09-24 19:20:07,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:20:07,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:07,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:07,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:07,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:07,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:08,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:08,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-24 19:20:08,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:20:08,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1010 [2020-09-24 19:20:08,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:08,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:08,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:20:08,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 19:20:08,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:08,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:20:08,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:08,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:08,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:08,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:20:08,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:08,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:20:08,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:08,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:08,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:08,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:08,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:08,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:20:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:08,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:08,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:08,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:08,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:09,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:09,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 19:20:09,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:20:09,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:20:09,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:09,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:09,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:09,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-24 19:20:09,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:09,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:09,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:09,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:09,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:09,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:10,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:10,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:10,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:20:10,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:20:10,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:10,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:20:10,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:10,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 19:20:10,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:10,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:10,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:10,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:10,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:10,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:10,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:10,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 19:20:10,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:10,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:10,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:10,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:20:10,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:10,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:10,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:10,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:10,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:10,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:10,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:10,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:10,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:10,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:10,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:10,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:10,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:10,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:10,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:10,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:10,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:10,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:10,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:10,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:20:10,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:10,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:10,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:10,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:10,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:10,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:10,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:10,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:10,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:10,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:10,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:10,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 19:20:10,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:10,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:10,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:10,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:20:10,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:10,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:20:10,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:10,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:11,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:11,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:11,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 19:20:11,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:11,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:11,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:11,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:20:11,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:11,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:11,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:11,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:11,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:11,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:11,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:20:11,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:11,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:11,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:11,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:11,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:11,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:11,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:11,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:11,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:11,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:11,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:11,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:11,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:11,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:11,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:11,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:11,038 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 20 proven. 30 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-09-24 19:20:11,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [782667056] [2020-09-24 19:20:11,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:20:11,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 19:20:11,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589317703] [2020-09-24 19:20:11,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 19:20:11,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:20:11,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 19:20:11,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:20:11,040 INFO L87 Difference]: Start difference. First operand 72 states and 90 transitions. Second operand 8 states. [2020-09-24 19:20:11,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:20:11,166 INFO L93 Difference]: Finished difference Result 98 states and 127 transitions. [2020-09-24 19:20:11,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 19:20:11,166 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 87 [2020-09-24 19:20:11,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:20:11,168 INFO L225 Difference]: With dead ends: 98 [2020-09-24 19:20:11,168 INFO L226 Difference]: Without dead ends: 92 [2020-09-24 19:20:11,169 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:20:11,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-09-24 19:20:11,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 78. [2020-09-24 19:20:11,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-24 19:20:11,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 98 transitions. [2020-09-24 19:20:11,179 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 98 transitions. Word has length 87 [2020-09-24 19:20:11,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:20:11,179 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 98 transitions. [2020-09-24 19:20:11,179 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 19:20:11,180 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 98 transitions. [2020-09-24 19:20:11,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-09-24 19:20:11,181 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:20:11,181 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:20:11,182 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 19:20:11,182 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:20:11,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:20:11,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1260162952, now seen corresponding path program 1 times [2020-09-24 19:20:11,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:20:11,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [940950150] [2020-09-24 19:20:11,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:20:11,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:11,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:12,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:12,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-24 19:20:12,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 19:20:12,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:20:12,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:12,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 19:20:12,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 19:20:12,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 19:20:12,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:12,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:20:12,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:12,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:12,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:12,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:20:12,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:12,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:20:12,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:12,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:12,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:12,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:12,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:12,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:20:12,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:12,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:12,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:12,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:12,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:12,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:12,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:12,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:12,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:12,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:13,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:13,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:13,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:13,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-24 19:20:13,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-24 19:20:13,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1019 [2020-09-24 19:20:13,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:13,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:13,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-24 19:20:13,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 19:20:13,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:13,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:13,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:13,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:13,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:13,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:13,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:13,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:13,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:13,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:13,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:14,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 19:20:14,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-24 19:20:14,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:20:14,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:14,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:14,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:20:14,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 19:20:14,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:14,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:14,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:14,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:14,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:14,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:20:14,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 401 [2020-09-24 19:20:14,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:14,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:20:14,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:14,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 19:20:14,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:14,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:14,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:14,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:14,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:14,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:14,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 19:20:14,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:14,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:14,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:14,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:20:14,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:14,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:14,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:14,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:14,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:14,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:14,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:20:14,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:14,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:14,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:14,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:14,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:14,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:14,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:14,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:14,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:14,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:20:14,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 19:20:14,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:14,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:20:14,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:14,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:20:14,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:14,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:14,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:14,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:14,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:14,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:14,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:20:14,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:14,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:14,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:14,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:20:14,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:14,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:14,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:14,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:14,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:14,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:14,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:20:14,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:14,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:14,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:14,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:14,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:14,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-09-24 19:20:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:14,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:14,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:14,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:14,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 19:20:14,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:14,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:14,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-09-24 19:20:14,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:14,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:14,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:14,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:14,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:14,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:14,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:14,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:20:14,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:14,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:14,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:14,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:14,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:14,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:14,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:14,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:14,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:14,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:14,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:20:14,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:14,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:14,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:14,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:14,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:14,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:14,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:14,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:14,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:14,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:14,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:14,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:14,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:14,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:14,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:15,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:15,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:15,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:15,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:15,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:15,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:15,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:15,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:20:15,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:15,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:15,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:15,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:15,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:15,023 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 40 proven. 76 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-09-24 19:20:15,024 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [940950150] [2020-09-24 19:20:15,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:20:15,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 19:20:15,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148613938] [2020-09-24 19:20:15,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 19:20:15,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:20:15,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 19:20:15,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:20:15,026 INFO L87 Difference]: Start difference. First operand 78 states and 98 transitions. Second operand 8 states. [2020-09-24 19:20:15,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:20:15,248 INFO L93 Difference]: Finished difference Result 166 states and 244 transitions. [2020-09-24 19:20:15,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 19:20:15,248 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 122 [2020-09-24 19:20:15,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:20:15,250 INFO L225 Difference]: With dead ends: 166 [2020-09-24 19:20:15,250 INFO L226 Difference]: Without dead ends: 94 [2020-09-24 19:20:15,252 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-09-24 19:20:15,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-09-24 19:20:15,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2020-09-24 19:20:15,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-09-24 19:20:15,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 123 transitions. [2020-09-24 19:20:15,261 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 123 transitions. Word has length 122 [2020-09-24 19:20:15,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:20:15,261 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 123 transitions. [2020-09-24 19:20:15,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 19:20:15,262 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 123 transitions. [2020-09-24 19:20:15,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-24 19:20:15,264 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:20:15,264 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:20:15,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 19:20:15,265 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:20:15,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:20:15,265 INFO L82 PathProgramCache]: Analyzing trace with hash 296317304, now seen corresponding path program 3 times [2020-09-24 19:20:15,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:20:15,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [484620950] [2020-09-24 19:20:15,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:20:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:15,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:15,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:15,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:15,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:15,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:15,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:15,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:16,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:16,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-24 19:20:16,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:20:16,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:20:16,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:16,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:20:16,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 19:20:16,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-24 19:20:16,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:16,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:20:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:16,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:16,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:16,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:20:16,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:16,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:20:16,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:16,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:16,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:16,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:16,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:16,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:20:16,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:16,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:16,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:16,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:16,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:16,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:17,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:17,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:17,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:17,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:17,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-09-24 19:20:17,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 19:20:17,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1004 [2020-09-24 19:20:17,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:17,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 19:20:17,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-24 19:20:17,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 19:20:17,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:17,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:17,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:17,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:17,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:17,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:17,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:18,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:18,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-24 19:20:18,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:20:18,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-24 19:20:18,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:18,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:20:18,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:20:18,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-24 19:20:18,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:18,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:18,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:18,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:18,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:18,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:19,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:19,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:19,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:20:19,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:20:19,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:19,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:20:19,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:19,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 19:20:19,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:19,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:19,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:19,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:19,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:19,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:19,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 19:20:19,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:19,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:19,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:19,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:20:19,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:19,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:19,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:19,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:19,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:19,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:19,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:19,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:19,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:19,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:19,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:19,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:19,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:19,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:19,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:19,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:19,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:19,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:19,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:19,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:19,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:19,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:19,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:19,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:19,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:19,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:19,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:19,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:19,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:19,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:19,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:19,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 19:20:19,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:19,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:19,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:19,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:20:19,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:19,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:20:19,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:19,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:19,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:19,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:19,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:19,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:19,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:20,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:20,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:20,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:20:20,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-24 19:20:20,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:20,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:20:20,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:20,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 19:20:20,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:20,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:20,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:20,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:20,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:20,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:20,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 19:20:20,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:20,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:20,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:20,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:20:20,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:20,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:20,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:20,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:20,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:20,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:20,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:20:20,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:20,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:20,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:20,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:20,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:20,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:20,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:20,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:20,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:20,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:20,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:20,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:20:20,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:20,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:20,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:20,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:20,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:20,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:20,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:20,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:20,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:20,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:20,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:20,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:20:20,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 19:20:20,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:20,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:20,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:20,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:20:20,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:20,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:20:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:20,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:20,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:20,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:20,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:20,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 19:20:20,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:20,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:20,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-09-24 19:20:20,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:20,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:20,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:20,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:20,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:20,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:20,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:20,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:20:20,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:20,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:20,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:20,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:20,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:20,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:20,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:20,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:20,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:20,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:20,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:20,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:20,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:20,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:20,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:20,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:20,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:20,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:20,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:20,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:20,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:20,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:20,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:20:20,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:20,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:20,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:20,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:20,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:20,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:20,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:20,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:20,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:20,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:20,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:20,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:20,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:20,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:20,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:20,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:20,713 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 92 proven. 98 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2020-09-24 19:20:20,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [484620950] [2020-09-24 19:20:20,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:20:20,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 19:20:20,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768898265] [2020-09-24 19:20:20,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:20:20,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:20:20,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:20:20,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:20:20,715 INFO L87 Difference]: Start difference. First operand 94 states and 123 transitions. Second operand 11 states. [2020-09-24 19:20:21,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:20:21,099 INFO L93 Difference]: Finished difference Result 236 states and 378 transitions. [2020-09-24 19:20:21,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 19:20:21,100 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 158 [2020-09-24 19:20:21,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:20:21,102 INFO L225 Difference]: With dead ends: 236 [2020-09-24 19:20:21,102 INFO L226 Difference]: Without dead ends: 140 [2020-09-24 19:20:21,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-09-24 19:20:21,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-09-24 19:20:21,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 114. [2020-09-24 19:20:21,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-24 19:20:21,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 152 transitions. [2020-09-24 19:20:21,117 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 152 transitions. Word has length 158 [2020-09-24 19:20:21,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:20:21,117 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 152 transitions. [2020-09-24 19:20:21,117 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 19:20:21,118 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 152 transitions. [2020-09-24 19:20:21,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-09-24 19:20:21,120 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:20:21,120 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:20:21,121 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 19:20:21,121 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:20:21,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:20:21,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1930099232, now seen corresponding path program 4 times [2020-09-24 19:20:21,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:20:21,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1583851662] [2020-09-24 19:20:21,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:20:21,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:21,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:21,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:21,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:21,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:21,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:21,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:21,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:22,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:22,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-24 19:20:22,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:20:22,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:20:22,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:22,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:22,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:20:22,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-24 19:20:22,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:22,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:20:22,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:22,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:22,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:22,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:20:22,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:22,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:20:22,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:22,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:22,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:22,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:22,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:22,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:20:22,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:22,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:22,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:22,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:22,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:22,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:22,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:23,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:23,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-24 19:20:23,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:20:23,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:20:23,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:23,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:20:23,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:20:23,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-24 19:20:23,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:23,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:23,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:23,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:23,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:23,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:23,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:23,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:23,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:23,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:23,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:24,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:24,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 19:20:24,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 19:20:24,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:20:24,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:24,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:20:24,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:24,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-24 19:20:24,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:24,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:24,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:24,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:24,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:24,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:24,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:24,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 19:20:24,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:24,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:24,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:24,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 19:20:24,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:24,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:24,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:24,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:24,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:24,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:24,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:24,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:20:24,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:24,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:24,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:24,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:24,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:24,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:24,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:24,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:24,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:24,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:24,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:24,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:24,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:24,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:24,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:24,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:24,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:24,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:24,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:24,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:24,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:24,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:24,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:24,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:24,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:24,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:24,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:24,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:24,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:24,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:24,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:24,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:24,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:24,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:24,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:24,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:24,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:24,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:24,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:24,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:24,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:20:24,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:24,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:24,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:24,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:24,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:24,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:24,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:20:24,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-24 19:20:24,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:24,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:24,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:24,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 19:20:24,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:24,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:24,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:24,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:24,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:24,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:24,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:24,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:20:24,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:24,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:24,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:24,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:20:24,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:24,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:24,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:24,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:24,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:24,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:24,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:20:24,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:24,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:24,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:24,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:24,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:24,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 19:20:24,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:24,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:24,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:24,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:24,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:24,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:24,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:20:24,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 408 [2020-09-24 19:20:24,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:24,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:20:24,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:24,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:20:24,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:20:25,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:25,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:25,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:25,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:25,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:25,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:25,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 19:20:25,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:25,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:25,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:25,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:20:25,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:25,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:25,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:25,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:25,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:25,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:25,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:25,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:20:25,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:25,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:25,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:25,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:25,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:25,093 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 102 proven. 20 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-09-24 19:20:25,094 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1583851662] [2020-09-24 19:20:25,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:20:25,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 19:20:25,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315518929] [2020-09-24 19:20:25,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:20:25,094 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:20:25,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:20:25,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:20:25,095 INFO L87 Difference]: Start difference. First operand 114 states and 152 transitions. Second operand 11 states. [2020-09-24 19:20:25,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:20:25,375 INFO L93 Difference]: Finished difference Result 248 states and 360 transitions. [2020-09-24 19:20:25,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 19:20:25,380 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 122 [2020-09-24 19:20:25,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:20:25,387 INFO L225 Difference]: With dead ends: 248 [2020-09-24 19:20:25,387 INFO L226 Difference]: Without dead ends: 140 [2020-09-24 19:20:25,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-09-24 19:20:25,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-09-24 19:20:25,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 120. [2020-09-24 19:20:25,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-09-24 19:20:25,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 158 transitions. [2020-09-24 19:20:25,410 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 158 transitions. Word has length 122 [2020-09-24 19:20:25,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:20:25,411 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 158 transitions. [2020-09-24 19:20:25,411 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 19:20:25,411 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 158 transitions. [2020-09-24 19:20:25,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-09-24 19:20:25,419 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:20:25,419 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 11, 10, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:20:25,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 19:20:25,420 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:20:25,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:20:25,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1683116168, now seen corresponding path program 5 times [2020-09-24 19:20:25,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:20:25,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [746302815] [2020-09-24 19:20:25,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:20:25,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:25,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:25,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:25,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:25,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:25,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:25,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:25,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:25,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:26,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:26,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:26,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 306 [2020-09-24 19:20:26,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-24 19:20:26,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1004 [2020-09-24 19:20:26,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:26,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:20:26,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-09-24 19:20:26,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 19:20:26,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:26,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:20:26,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:26,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:26,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:26,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:20:26,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:26,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:20:26,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:26,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:26,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:26,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:26,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:26,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:20:26,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:26,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:26,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:26,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:26,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:26,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:26,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:27,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 292 [2020-09-24 19:20:27,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-24 19:20:27,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1005 [2020-09-24 19:20:27,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:27,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:20:27,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-09-24 19:20:27,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 19:20:27,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:27,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:27,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:27,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:28,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:28,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-24 19:20:28,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:20:28,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:20:28,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:28,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:20:28,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-09-24 19:20:28,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 19:20:28,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:28,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:28,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:28,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:28,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:28,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:28,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:28,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:20:28,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:28,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:28,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:28,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:28,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:28,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:28,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:28,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:28,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:28,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:28,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:20:28,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:28,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:28,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:28,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:28,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:28,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:28,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:28,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:28,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:28,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:28,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:28,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:28,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:28,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:28,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:28,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:28,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:28,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:28,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:28,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:28,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:28,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:28,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:20:28,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:28,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:28,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:28,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:28,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:28,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:28,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:28,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:28,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:28,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:28,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:28,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:28,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:28,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:28,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:28,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:28,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:20:28,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:28,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:28,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:28,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:28,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:28,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:28,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:28,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:29,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:29,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 19:20:29,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:20:29,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-24 19:20:29,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:29,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:20:29,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:20:29,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 19:20:29,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:29,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:29,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:29,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:29,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:29,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:29,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:29,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:29,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:30,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:30,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:30,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:20:30,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-24 19:20:30,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:30,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:30,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:30,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 19:20:30,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:30,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:30,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:30,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:30,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:30,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:30,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:30,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 19:20:30,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:30,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:30,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:30,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:20:30,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:30,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:30,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:30,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:30,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:30,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:30,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:30,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:30,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:30,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:30,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:30,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:30,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:30,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:30,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:30,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:30,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:30,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:30,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:30,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:30,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:30,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:30,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:30,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:30,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:30,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:30,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:30,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:30,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:30,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:20:30,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:30,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:30,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:30,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:20:30,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:30,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:20:30,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:30,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:30,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:30,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:30,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:30,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:30,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:30,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:20:30,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:30,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:30,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:30,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 19:20:30,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:30,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:30,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:30,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:30,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:30,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:30,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:30,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:31,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-24 19:20:31,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-24 19:20:31,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:20:31,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:31,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:31,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-09-24 19:20:31,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:31,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:31,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:31,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:31,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:31,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:31,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:31,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:20:31,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:31,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:31,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:31,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:31,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:31,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:31,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:31,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:31,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:31,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:31,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:20:31,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:31,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:31,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:31,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:31,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:31,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:31,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:31,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:31,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:31,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:31,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:31,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:31,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:31,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:31,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:31,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:31,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:31,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:31,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:31,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:31,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:31,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:20:31,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:31,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:31,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:31,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:31,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:31,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:31,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:31,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:31,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:31,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:31,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:31,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:31,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:31,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:31,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:31,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:31,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:20:31,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:31,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:32,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:32,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:32,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 19:20:32,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 19:20:32,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:20:32,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:32,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:32,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:32,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:32,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:32,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:32,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:32,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:32,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:32,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:32,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:32,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:20:32,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:32,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:32,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:32,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:32,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:32,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:32,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:32,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:32,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:32,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:32,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:32,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:20:32,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:32,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:32,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:32,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:32,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:32,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:32,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:32,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:32,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:32,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:32,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:32,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:32,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:32,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:32,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:32,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:32,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:32,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:32,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:32,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:32,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:32,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:32,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:32,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:32,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:32,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:32,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:32,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:32,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:32,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:32,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:32,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:32,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:32,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:32,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:32,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:32,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:32,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:32,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:32,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:20:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:32,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:32,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:32,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:32,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:32,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:20:32,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:32,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:32,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:32,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:32,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:32,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1047 backedges. 129 proven. 137 refuted. 0 times theorem prover too weak. 781 trivial. 0 not checked. [2020-09-24 19:20:32,928 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [746302815] [2020-09-24 19:20:32,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:20:32,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 19:20:32,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363243105] [2020-09-24 19:20:32,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 19:20:32,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:20:32,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 19:20:32,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:20:32,930 INFO L87 Difference]: Start difference. First operand 120 states and 158 transitions. Second operand 8 states. [2020-09-24 19:20:33,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:20:33,076 INFO L93 Difference]: Finished difference Result 225 states and 325 transitions. [2020-09-24 19:20:33,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:20:33,078 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 245 [2020-09-24 19:20:33,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:20:33,080 INFO L225 Difference]: With dead ends: 225 [2020-09-24 19:20:33,080 INFO L226 Difference]: Without dead ends: 112 [2020-09-24 19:20:33,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:20:33,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-09-24 19:20:33,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-09-24 19:20:33,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-09-24 19:20:33,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 143 transitions. [2020-09-24 19:20:33,092 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 143 transitions. Word has length 245 [2020-09-24 19:20:33,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:20:33,093 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 143 transitions. [2020-09-24 19:20:33,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 19:20:33,093 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 143 transitions. [2020-09-24 19:20:33,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-24 19:20:33,096 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:20:33,096 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:20:33,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 19:20:33,097 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:20:33,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:20:33,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1560940375, now seen corresponding path program 6 times [2020-09-24 19:20:33,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:20:33,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1679270384] [2020-09-24 19:20:33,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:20:33,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:33,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:33,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:33,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:33,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:33,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:33,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:33,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:33,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:34,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:34,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:34,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:34,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-24 19:20:34,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-24 19:20:34,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:20:34,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:34,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:20:34,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:20:34,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-09-24 19:20:34,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:34,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:20:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:34,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:34,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:34,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:20:34,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:34,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:20:34,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:34,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:34,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:34,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:34,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:34,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:20:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:34,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:34,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:34,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:34,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:34,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:34,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:35,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:35,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-24 19:20:35,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:20:35,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:20:35,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:35,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 19:20:35,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:20:35,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-09-24 19:20:35,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:35,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:35,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:35,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:35,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:35,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:35,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:35,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:36,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:36,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 19:20:36,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:20:36,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:20:36,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:36,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:36,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:36,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-24 19:20:36,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:36,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:36,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:36,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:36,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:36,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:36,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:36,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 19:20:36,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:36,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:36,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:36,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 19:20:36,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:36,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:36,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:36,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:36,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:36,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:36,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:36,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:20:36,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:36,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:36,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:36,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:36,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:36,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:36,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:36,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:36,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:36,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:36,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:36,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:36,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:36,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:36,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:36,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:36,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:36,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:36,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:36,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:36,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:36,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:36,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:20:36,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:36,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:36,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:36,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:36,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:36,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:36,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:36,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:36,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:36,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:36,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:36,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:36,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:36,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:36,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:36,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:36,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:20:36,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:36,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:36,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:36,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:36,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:36,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:20:36,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-09-24 19:20:36,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:36,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:20:36,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:36,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 19:20:36,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:36,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:36,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:36,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:36,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:36,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:36,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 19:20:36,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:36,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:36,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:36,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:20:36,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:36,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:36,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:36,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:36,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:36,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:36,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:36,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:20:36,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:36,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:36,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:36,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:36,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:36,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 19:20:36,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:36,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:36,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:36,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:36,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:36,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:36,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:36,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:37,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:37,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:37,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:37,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-24 19:20:37,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-24 19:20:37,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1004 [2020-09-24 19:20:37,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:37,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:37,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:20:37,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-24 19:20:37,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:37,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:37,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:37,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:37,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:37,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:37,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:37,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:37,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:37,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:37,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:37,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:38,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:38,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:38,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 19:20:38,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-24 19:20:38,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:20:38,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:38,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:20:38,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:38,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-24 19:20:38,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:38,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:38,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:38,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:38,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:38,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:38,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 19:20:38,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:38,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:38,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:38,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 19:20:38,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:38,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:38,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:38,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:38,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:38,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:38,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:38,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:20:38,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:38,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:38,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:38,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:38,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:38,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:38,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:38,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:38,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:38,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:38,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:38,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:38,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:38,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:38,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:38,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:38,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:38,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:38,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:38,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:38,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:38,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:38,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:38,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:20:38,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:38,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:38,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:38,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:38,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:38,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:38,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:38,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:38,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:38,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:38,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:38,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:38,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:38,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:38,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:38,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:38,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:38,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:20:38,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:38,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:38,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:38,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:38,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:38,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:38,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:20:38,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-24 19:20:38,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:38,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:38,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:38,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 19:20:38,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:38,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:38,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:38,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:38,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:38,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:38,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:38,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:20:38,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:38,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:38,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:38,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:20:38,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:38,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:38,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:38,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:38,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:38,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:38,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:38,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:20:38,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:38,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:38,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:38,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:38,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:38,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 19:20:38,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:38,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:38,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:38,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:38,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:38,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:20:38,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:38,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:20:38,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:38,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:20:38,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:38,975 INFO L134 CoverageAnalysis]: Checked inductivity of 615 backedges. 230 proven. 109 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2020-09-24 19:20:38,976 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1679270384] [2020-09-24 19:20:38,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:20:38,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-24 19:20:38,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091751397] [2020-09-24 19:20:38,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 19:20:38,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:20:38,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 19:20:38,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-09-24 19:20:38,977 INFO L87 Difference]: Start difference. First operand 112 states and 143 transitions. Second operand 14 states. [2020-09-24 19:20:39,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:20:39,611 INFO L93 Difference]: Finished difference Result 246 states and 389 transitions. [2020-09-24 19:20:39,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 19:20:39,612 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 193 [2020-09-24 19:20:39,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:20:39,616 INFO L225 Difference]: With dead ends: 246 [2020-09-24 19:20:39,616 INFO L226 Difference]: Without dead ends: 127 [2020-09-24 19:20:39,618 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=539, Unknown=0, NotChecked=0, Total=650 [2020-09-24 19:20:39,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-09-24 19:20:39,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 121. [2020-09-24 19:20:39,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-09-24 19:20:39,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 155 transitions. [2020-09-24 19:20:39,632 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 155 transitions. Word has length 193 [2020-09-24 19:20:39,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:20:39,633 INFO L479 AbstractCegarLoop]: Abstraction has 121 states and 155 transitions. [2020-09-24 19:20:39,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 19:20:39,633 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 155 transitions. [2020-09-24 19:20:39,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-09-24 19:20:39,636 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:20:39,636 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:20:39,636 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 19:20:39,636 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:20:39,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:20:39,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1260071360, now seen corresponding path program 7 times [2020-09-24 19:20:39,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:20:39,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1765094406] [2020-09-24 19:20:39,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:20:39,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 19:20:39,657 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 19:20:39,658 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 19:20:39,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-24 19:20:39,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 07:20:39 BoogieIcfgContainer [2020-09-24 19:20:39,690 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 19:20:39,693 INFO L168 Benchmark]: Toolchain (without parser) took 52857.76 ms. Allocated memory was 138.4 MB in the beginning and 466.6 MB in the end (delta: 328.2 MB). Free memory was 100.5 MB in the beginning and 164.6 MB in the end (delta: -64.1 MB). Peak memory consumption was 264.1 MB. Max. memory is 7.1 GB. [2020-09-24 19:20:39,694 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 138.4 MB. Free memory was 118.7 MB in the beginning and 118.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-24 19:20:39,695 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.46 ms. Allocated memory is still 138.4 MB. Free memory was 99.9 MB in the beginning and 90.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-09-24 19:20:39,695 INFO L168 Benchmark]: Boogie Preprocessor took 113.49 ms. Allocated memory was 138.4 MB in the beginning and 200.3 MB in the end (delta: 61.9 MB). Free memory was 90.2 MB in the beginning and 179.0 MB in the end (delta: -88.7 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2020-09-24 19:20:39,696 INFO L168 Benchmark]: RCFGBuilder took 368.05 ms. Allocated memory is still 200.3 MB. Free memory was 179.0 MB in the beginning and 164.4 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. [2020-09-24 19:20:39,697 INFO L168 Benchmark]: TraceAbstraction took 52040.48 ms. Allocated memory was 200.3 MB in the beginning and 466.6 MB in the end (delta: 266.3 MB). Free memory was 164.4 MB in the beginning and 164.6 MB in the end (delta: -190.5 kB). Peak memory consumption was 266.1 MB. Max. memory is 7.1 GB. [2020-09-24 19:20:39,700 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 138.4 MB. Free memory was 118.7 MB in the beginning and 118.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 325.46 ms. Allocated memory is still 138.4 MB. Free memory was 99.9 MB in the beginning and 90.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.49 ms. Allocated memory was 138.4 MB in the beginning and 200.3 MB in the end (delta: 61.9 MB). Free memory was 90.2 MB in the beginning and 179.0 MB in the end (delta: -88.7 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 368.05 ms. Allocated memory is still 200.3 MB. Free memory was 179.0 MB in the beginning and 164.4 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 52040.48 ms. Allocated memory was 200.3 MB in the beginning and 466.6 MB in the end (delta: 266.3 MB). Free memory was 164.4 MB in the beginning and 164.6 MB in the end (delta: -190.5 kB). Peak memory consumption was 266.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 39]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L36] int x = 5; [L37] CALL, EXPR fibo1(x) [L8] COND FALSE !(n < 1) [L10] COND FALSE !(n == 1) [L13] CALL, EXPR fibo2(n-1) [L18] COND FALSE !(n < 1) [L20] COND FALSE !(n == 1) [L23] CALL, EXPR fibo1(n-1) [L8] COND FALSE !(n < 1) [L10] COND FALSE !(n == 1) [L13] CALL, EXPR fibo2(n-1) [L18] COND FALSE !(n < 1) [L20] COND FALSE !(n == 1) [L23] CALL, EXPR fibo1(n-1) [L8] COND FALSE !(n < 1) [L10] COND TRUE n == 1 [L11] return 1; [L23] RET, EXPR fibo1(n-1) [L23] CALL, EXPR fibo1(n-2) [L8] COND TRUE n < 1 [L9] return 0; [L23] RET, EXPR fibo1(n-2) [L23] return fibo1(n-1) + fibo1(n-2); [L13] RET, EXPR fibo2(n-1) [L13] CALL, EXPR fibo2(n-2) [L18] COND FALSE !(n < 1) [L20] COND TRUE n == 1 [L21] return 1; [L13] RET, EXPR fibo2(n-2) [L13] return fibo2(n-1) + fibo2(n-2); [L23] RET, EXPR fibo1(n-1) [L23] CALL, EXPR fibo1(n-2) [L8] COND FALSE !(n < 1) [L10] COND FALSE !(n == 1) [L13] CALL, EXPR fibo2(n-1) [L18] COND FALSE !(n < 1) [L20] COND TRUE n == 1 [L21] return 1; [L13] RET, EXPR fibo2(n-1) [L13] CALL, EXPR fibo2(n-2) [L18] COND TRUE n < 1 [L19] return 0; [L13] RET, EXPR fibo2(n-2) [L13] return fibo2(n-1) + fibo2(n-2); [L23] RET, EXPR fibo1(n-2) [L23] return fibo1(n-1) + fibo1(n-2); [L13] RET, EXPR fibo2(n-1) [L13] CALL, EXPR fibo2(n-2) [L18] COND FALSE !(n < 1) [L20] COND FALSE !(n == 1) [L23] CALL, EXPR fibo1(n-1) [L8] COND FALSE !(n < 1) [L10] COND FALSE !(n == 1) [L13] CALL, EXPR fibo2(n-1) [L18] COND FALSE !(n < 1) [L20] COND TRUE n == 1 [L21] return 1; [L13] RET, EXPR fibo2(n-1) [L13] CALL, EXPR fibo2(n-2) [L18] COND TRUE n < 1 [L19] return 0; [L13] RET, EXPR fibo2(n-2) [L13] return fibo2(n-1) + fibo2(n-2); [L23] RET, EXPR fibo1(n-1) [L23] CALL, EXPR fibo1(n-2) [L8] COND FALSE !(n < 1) [L10] COND TRUE n == 1 [L11] return 1; [L23] RET, EXPR fibo1(n-2) [L23] return fibo1(n-1) + fibo1(n-2); [L13] RET, EXPR fibo2(n-2) [L13] return fibo2(n-1) + fibo2(n-2); [L37] RET, EXPR fibo1(x) [L37] int result = fibo1(x); [L38] COND TRUE result == 5 [L39] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 51.9s, OverallIterations: 16, TraceHistogramMax: 14, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 628 SDtfs, 593 SDslu, 2515 SDs, 0 SdLazy, 1629 SolverSat, 187 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 486 GetRequests, 342 SyntacticMatches, 3 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=121occurred in iteration=15, 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, 15 MinimizatonAttempts, 102 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 47.9s InterpolantComputationTime, 1510 NumberOfCodeBlocks, 1510 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1355 ConstructedInterpolants, 0 QuantifiedInterpolants, 331091 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 2 PerfectInterpolantSequences, 2348/2899 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...