/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=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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_7-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:16:09,290 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:16:09,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:16:09,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:16:09,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:16:09,338 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:16:09,340 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:16:09,344 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:16:09,347 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:16:09,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:16:09,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:16:09,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:16:09,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:16:09,355 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:16:09,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:16:09,359 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:16:09,361 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:16:09,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:16:09,364 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:16:09,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:16:09,374 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:16:09,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:16:09,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:16:09,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:16:09,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:16:09,389 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:16:09,390 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:16:09,397 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:16:09,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:16:09,400 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:16:09,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:16:09,401 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:16:09,402 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:16:09,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:16:09,405 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:16:09,406 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:16:09,406 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:16:09,407 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:16:09,407 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:16:09,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:16:09,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:16:09,410 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 [2020-09-25 12:16:09,450 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:16:09,450 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:16:09,452 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:16:09,452 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:16:09,453 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:16:09,453 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:16:09,453 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:16:09,453 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:16:09,454 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:16:09,454 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:16:09,455 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:16:09,455 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:16:09,455 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:16:09,456 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:16:09,456 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:16:09,456 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:16:09,456 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:16:09,456 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:16:09,457 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:16:09,457 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:16:09,457 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:16:09,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:16:09,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:16:09,458 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:16:09,458 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:16:09,458 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:16:09,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:16:09,458 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:16:09,458 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:16:09,459 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=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;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=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;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=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;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=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;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=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;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=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:16:09,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:16:09,937 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:16:09,942 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:16:09,943 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:16:09,944 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:16:09,945 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_7-1.c [2020-09-25 12:16:10,032 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/556e3cecf/26c420abdead46d59a266786781f143c/FLAGb556fce87 [2020-09-25 12:16:10,567 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:16:10,568 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_7-1.c [2020-09-25 12:16:10,576 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/556e3cecf/26c420abdead46d59a266786781f143c/FLAGb556fce87 [2020-09-25 12:16:10,903 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/556e3cecf/26c420abdead46d59a266786781f143c [2020-09-25 12:16:10,916 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:16:10,922 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:16:10,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:16:10,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:16:10,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:16:10,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:16:10" (1/1) ... [2020-09-25 12:16:10,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22f7f464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:16:10, skipping insertion in model container [2020-09-25 12:16:10,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:16:10" (1/1) ... [2020-09-25 12:16:10,945 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:16:10,973 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:16:11,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:16:11,179 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:16:11,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:16:11,211 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:16:11,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:16:11 WrapperNode [2020-09-25 12:16:11,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:16:11,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:16:11,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:16:11,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:16:11,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:16:11" (1/1) ... [2020-09-25 12:16:11,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:16:11" (1/1) ... [2020-09-25 12:16:11,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:16:11" (1/1) ... [2020-09-25 12:16:11,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:16:11" (1/1) ... [2020-09-25 12:16:11,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:16:11" (1/1) ... [2020-09-25 12:16:11,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:16:11" (1/1) ... [2020-09-25 12:16:11,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:16:11" (1/1) ... [2020-09-25 12:16:11,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:16:11,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:16:11,246 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:16:11,246 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:16:11,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:16:11" (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 [2020-09-25 12:16:11,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:16:11,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:16:11,405 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-09-25 12:16:11,406 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:16:11,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:16:11,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:16:11,406 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-09-25 12:16:11,406 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:16:11,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:16:11,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:16:11,612 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:16:11,613 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 12:16:11,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:16:11 BoogieIcfgContainer [2020-09-25 12:16:11,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:16:11,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:16:11,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:16:11,649 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:16:11,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:16:10" (1/3) ... [2020-09-25 12:16:11,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68dea4f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:16:11, skipping insertion in model container [2020-09-25 12:16:11,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:16:11" (2/3) ... [2020-09-25 12:16:11,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68dea4f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:16:11, skipping insertion in model container [2020-09-25 12:16:11,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:16:11" (3/3) ... [2020-09-25 12:16:11,658 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_7-1.c [2020-09-25 12:16:11,688 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:16:11,700 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:16:11,733 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:16:11,773 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:16:11,773 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:16:11,774 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:16:11,774 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:16:11,774 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:16:11,774 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:16:11,774 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:16:11,775 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:16:11,795 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-09-25 12:16:11,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 12:16:11,802 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:16:11,803 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:16:11,803 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:16:11,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:16:11,810 INFO L82 PathProgramCache]: Analyzing trace with hash -1756383024, now seen corresponding path program 1 times [2020-09-25 12:16:11,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:16:11,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1880023604] [2020-09-25 12:16:11,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:16:11,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:11,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:11,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:11,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:16:11,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:11,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 12:16:11,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:11,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:11,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:16:11,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:16:11,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:16:11,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:16:12,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:16:12,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:12,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:12,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:12,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:16:12,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:12,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:16:12,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:12,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:12,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:16:12,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:12,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:16:12,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:16:12,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:16:12,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:12,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:12,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:12,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:16:12,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:12,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 12:16:12,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:12,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:12,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:16:12,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:16:12,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:16:12,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:12,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:16:12,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1880023604] [2020-09-25 12:16:12,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:16:12,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 12:16:12,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822007775] [2020-09-25 12:16:12,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 12:16:12,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:16:12,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 12:16:12,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:16:12,162 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-09-25 12:16:12,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:16:12,284 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2020-09-25 12:16:12,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 12:16:12,287 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 12:16:12,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:16:12,301 INFO L225 Difference]: With dead ends: 44 [2020-09-25 12:16:12,302 INFO L226 Difference]: Without dead ends: 28 [2020-09-25 12:16:12,306 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:16:12,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-25 12:16:12,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-25 12:16:12,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 12:16:12,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 12:16:12,365 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2020-09-25 12:16:12,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:16:12,365 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 12:16:12,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 12:16:12,366 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 12:16:12,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 12:16:12,369 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:16:12,369 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:16:12,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:16:12,370 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:16:12,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:16:12,370 INFO L82 PathProgramCache]: Analyzing trace with hash -389703589, now seen corresponding path program 1 times [2020-09-25 12:16:12,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:16:12,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [80705760] [2020-09-25 12:16:12,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:16:12,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:12,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:12,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:12,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 12:16:12,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:12,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-25 12:16:12,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:12,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:12,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:16:12,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:16:12,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:16:12,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:12,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:16:12,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:12,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:12,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:12,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:16:12,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:12,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:16:12,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:12,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:12,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:16:12,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:12,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:16:12,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:12,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:16:12,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:12,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:12,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:12,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:16:12,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:12,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 12:16:12,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:12,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:12,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:16:12,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:16:12,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:16:12,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 12:16:12,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:16:12,606 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [80705760] [2020-09-25 12:16:12,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:16:12,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 12:16:12,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884247841] [2020-09-25 12:16:12,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 12:16:12,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:16:12,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 12:16:12,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:16:12,610 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 5 states. [2020-09-25 12:16:12,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:16:12,685 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-09-25 12:16:12,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 12:16:12,686 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 12:16:12,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:16:12,688 INFO L225 Difference]: With dead ends: 36 [2020-09-25 12:16:12,688 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 12:16:12,689 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:16:12,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 12:16:12,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-09-25 12:16:12,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 12:16:12,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 12:16:12,698 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2020-09-25 12:16:12,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:16:12,698 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 12:16:12,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 12:16:12,698 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 12:16:12,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 12:16:12,700 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:16:12,700 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:16:12,701 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:16:12,701 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:16:12,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:16:12,701 INFO L82 PathProgramCache]: Analyzing trace with hash 50309368, now seen corresponding path program 1 times [2020-09-25 12:16:12,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:16:12,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [134520220] [2020-09-25 12:16:12,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:16:12,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:12,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:12,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:12,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:13,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:13,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 12:16:13,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:16:13,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 580 [2020-09-25 12:16:13,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:13,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:13,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:16:13,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:16:13,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:16:13,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:16:13,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:16:13,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:13,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:13,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:13,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:16:13,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:13,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:16:13,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:13,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:13,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:16:13,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:13,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:16:13,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:13,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:16:13,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:13,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:13,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:13,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:13,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:13,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 12:16:13,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:16:13,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-09-25 12:16:13,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:13,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:13,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:16:13,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:16:13,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 12:16:13,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:13,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:16:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:13,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:13,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:13,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:16:13,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:13,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:16:13,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:13,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:13,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:16:13,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:13,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:16:13,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:13,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 12:16:13,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:13,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:13,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:13,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:16:13,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:13,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:16:13,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:13,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:13,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:16:13,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:13,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:16:13,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:13,672 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 12:16:13,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [134520220] [2020-09-25 12:16:13,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:16:13,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 12:16:13,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640569941] [2020-09-25 12:16:13,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:16:13,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:16:13,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:16:13,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:16:13,675 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 6 states. [2020-09-25 12:16:13,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:16:13,762 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2020-09-25 12:16:13,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 12:16:13,763 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-09-25 12:16:13,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:16:13,765 INFO L225 Difference]: With dead ends: 44 [2020-09-25 12:16:13,765 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 12:16:13,766 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:16:13,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 12:16:13,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2020-09-25 12:16:13,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-25 12:16:13,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2020-09-25 12:16:13,776 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 33 [2020-09-25 12:16:13,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:16:13,777 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-09-25 12:16:13,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:16:13,777 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2020-09-25 12:16:13,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 12:16:13,779 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:16:13,779 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:16:13,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:16:13,780 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:16:13,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:16:13,780 INFO L82 PathProgramCache]: Analyzing trace with hash 765810174, now seen corresponding path program 1 times [2020-09-25 12:16:13,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:16:13,781 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [675079889] [2020-09-25 12:16:13,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:16:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:13,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:13,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:13,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:14,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:14,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:14,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 12:16:14,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:16:14,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 546 [2020-09-25 12:16:14,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:14,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:14,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:16:14,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:16:14,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 12:16:14,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:14,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:16:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:14,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:14,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:14,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:16:14,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:14,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:16:14,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:14,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:14,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:16:14,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:14,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:16:14,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:14,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:16:14,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:14,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:14,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:14,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:14,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:14,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:14,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 12:16:14,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:16:14,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 472 [2020-09-25 12:16:14,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:14,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:14,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:16:14,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:16:14,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 12:16:14,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:14,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:16:14,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:14,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:14,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:14,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:16:14,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:14,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 12:16:14,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:14,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:14,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:16:14,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:14,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:16:14,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:14,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:16:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:14,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:14,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:14,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:16:14,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:14,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 12:16:14,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:14,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:14,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:16:14,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:14,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:16:14,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:14,943 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 12:16:14,945 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [675079889] [2020-09-25 12:16:14,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:16:14,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 12:16:14,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057113915] [2020-09-25 12:16:14,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:16:14,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:16:14,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:16:14,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:16:14,950 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 6 states. [2020-09-25 12:16:15,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:16:15,092 INFO L93 Difference]: Finished difference Result 88 states and 137 transitions. [2020-09-25 12:16:15,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 12:16:15,095 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-25 12:16:15,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:16:15,102 INFO L225 Difference]: With dead ends: 88 [2020-09-25 12:16:15,102 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 12:16:15,107 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:16:15,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 12:16:15,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 50. [2020-09-25 12:16:15,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 12:16:15,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 69 transitions. [2020-09-25 12:16:15,126 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 69 transitions. Word has length 35 [2020-09-25 12:16:15,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:16:15,126 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 69 transitions. [2020-09-25 12:16:15,126 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:16:15,126 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 69 transitions. [2020-09-25 12:16:15,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 12:16:15,130 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:16:15,130 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 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] [2020-09-25 12:16:15,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 12:16:15,131 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:16:15,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:16:15,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1693530075, now seen corresponding path program 1 times [2020-09-25 12:16:15,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:16:15,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [607510294] [2020-09-25 12:16:15,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:16:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:15,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:15,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:15,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:15,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:15,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:15,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:15,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:20,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:20,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 12:16:20,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 12:16:20,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 12:16:20,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:20,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:20,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:16:20,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:16:20,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 12:16:20,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:20,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:16:20,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:20,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:20,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:20,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:16:20,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:20,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:16:20,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:20,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:20,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:16:20,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:20,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:16:20,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:20,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:16:20,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:20,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:20,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:20,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:20,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:20,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:20,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:20,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:23,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:23,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 12:16:23,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 12:16:23,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3144 [2020-09-25 12:16:23,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:23,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:23,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:16:23,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:16:23,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 12:16:23,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:23,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:16:23,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:23,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:23,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:23,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:23,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:23,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 12:16:23,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:16:23,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 12:16:23,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:23,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:23,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:16:23,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:23,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 12:16:23,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:23,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:16:23,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:23,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:23,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:23,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:16:23,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:23,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:16:23,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:23,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:23,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:16:23,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:23,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:16:23,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:23,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 12:16:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:23,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:23,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:23,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:16:23,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:23,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:16:23,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:23,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:23,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:16:23,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:23,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:16:23,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:23,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 12:16:23,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:23,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:23,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:23,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:16:23,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:23,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 12:16:23,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:23,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:23,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:16:23,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:23,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:16:23,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:23,619 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-25 12:16:23,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [607510294] [2020-09-25 12:16:23,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:16:23,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 12:16:23,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676684075] [2020-09-25 12:16:23,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:16:23,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:16:23,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:16:23,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:16:23,623 INFO L87 Difference]: Start difference. First operand 50 states and 69 transitions. Second operand 7 states. [2020-09-25 12:16:23,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:16:23,768 INFO L93 Difference]: Finished difference Result 76 states and 103 transitions. [2020-09-25 12:16:23,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 12:16:23,769 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-09-25 12:16:23,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:16:23,777 INFO L225 Difference]: With dead ends: 76 [2020-09-25 12:16:23,780 INFO L226 Difference]: Without dead ends: 70 [2020-09-25 12:16:23,783 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 12:16:23,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-25 12:16:23,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 58. [2020-09-25 12:16:23,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-25 12:16:23,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 81 transitions. [2020-09-25 12:16:23,815 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 81 transitions. Word has length 51 [2020-09-25 12:16:23,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:16:23,816 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 81 transitions. [2020-09-25 12:16:23,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:16:23,816 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 81 transitions. [2020-09-25 12:16:23,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 12:16:23,827 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:16:23,828 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:16:23,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 12:16:23,831 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:16:23,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:16:23,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1086233509, now seen corresponding path program 2 times [2020-09-25 12:16:23,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:16:23,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [966482612] [2020-09-25 12:16:23,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:16:23,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:23,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:23,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:23,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:23,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:23,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:24,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:26,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:26,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:26,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:26,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:27,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:27,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:27,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:27,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:27,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:28,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:28,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:28,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:28,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:28,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 12:16:28,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-09-25 12:16:28,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 12:16:28,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:28,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:28,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:16:28,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:16:28,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 12:16:28,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:28,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:16:28,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:28,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:28,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:28,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:16:28,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:28,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:16:28,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:28,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:28,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:16:28,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:28,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:16:28,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:16:28,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:16:28,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:28,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:28,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:28,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:28,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:29,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:29,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:29,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:30,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:30,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:30,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:30,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:30,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:33,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:33,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 12:16:33,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 12:16:33,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 12:16:33,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:33,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:33,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:16:33,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 12:16:33,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 12:16:33,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:33,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:16:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:33,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:33,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:33,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:34,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:34,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 12:16:34,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:16:34,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-09-25 12:16:34,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:34,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:34,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:16:34,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:34,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 12:16:34,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:16:34,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:16:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:34,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:34,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:34,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:16:34,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:34,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:16:34,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:34,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:34,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:16:34,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:34,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:16:34,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:34,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 12:16:34,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:34,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:34,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:34,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:16:34,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:34,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 12:16:34,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:34,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:34,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:16:34,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:34,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:16:34,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:34,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 12:16:34,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:34,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:34,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:34,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:34,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:34,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:34,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:34,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:34,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:36,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:36,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 12:16:36,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 12:16:36,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1889 [2020-09-25 12:16:36,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:36,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:36,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:16:36,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:16:36,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 12:16:36,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:16:36,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:16:36,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:36,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:36,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:36,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:36,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 12:16:36,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:16:36,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 12:16:36,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:36,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:36,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:16:36,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:36,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 12:16:36,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:36,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:16:36,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:36,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:36,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:36,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:16:36,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:36,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:16:36,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:36,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:36,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:16:36,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:36,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:16:36,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:36,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 12:16:36,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:36,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:36,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:36,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:16:36,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:36,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:16:36,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:36,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:36,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:16:36,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:36,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:16:36,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:36,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 12:16:36,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:36,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:36,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:36,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:16:36,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:36,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:16:36,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:36,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:36,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:16:36,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:36,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:16:36,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:36,376 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 59 proven. 65 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2020-09-25 12:16:36,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [966482612] [2020-09-25 12:16:36,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:16:36,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 12:16:36,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932101580] [2020-09-25 12:16:36,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 12:16:36,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:16:36,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 12:16:36,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-25 12:16:36,379 INFO L87 Difference]: Start difference. First operand 58 states and 81 transitions. Second operand 11 states. [2020-09-25 12:16:36,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:16:36,650 INFO L93 Difference]: Finished difference Result 125 states and 194 transitions. [2020-09-25 12:16:36,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 12:16:36,652 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 85 [2020-09-25 12:16:36,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:16:36,656 INFO L225 Difference]: With dead ends: 125 [2020-09-25 12:16:36,657 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 12:16:36,660 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2020-09-25 12:16:36,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 12:16:36,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2020-09-25 12:16:36,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 12:16:36,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2020-09-25 12:16:36,680 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 85 [2020-09-25 12:16:36,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:16:36,680 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2020-09-25 12:16:36,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 12:16:36,680 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2020-09-25 12:16:36,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-09-25 12:16:36,683 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:16:36,684 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:16:36,684 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 12:16:36,685 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:16:36,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:16:36,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1883941443, now seen corresponding path program 3 times [2020-09-25 12:16:36,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:16:36,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1719035433] [2020-09-25 12:16:36,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:16:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:36,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:36,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:36,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:36,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:36,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:37,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:37,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:37,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:37,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:38,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:38,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:41,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:41,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-25 12:16:41,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 12:16:41,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 12:16:41,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:41,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:41,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 12:16:41,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 12:16:41,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 12:16:41,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:16:41,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:16:41,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:41,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:41,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:41,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:16:41,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:41,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:16:41,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:41,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:41,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:16:41,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:41,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:16:41,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:16:41,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:16:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:41,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:41,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:41,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:41,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:42,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:42,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:43,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:43,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:43,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:46,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:46,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:46,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:46,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:46,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-25 12:16:46,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 12:16:46,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 12:16:46,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:46,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:46,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:16:46,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 12:16:46,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-25 12:16:46,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:16:46,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:16:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:46,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:46,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:46,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:48,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:48,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 12:16:48,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:16:48,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1230 [2020-09-25 12:16:48,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:48,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:48,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:16:48,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:48,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 12:16:48,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:48,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:16:48,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:48,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:48,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:48,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 12:16:48,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:48,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 12:16:48,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:48,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:48,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:16:48,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:48,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 12:16:48,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:48,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:16:48,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:48,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:48,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:48,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:16:48,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:48,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:16:48,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:48,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:48,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:16:48,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:48,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:16:48,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:48,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:16:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:48,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:48,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:48,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:16:48,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:48,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:16:48,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:48,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:48,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:16:48,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:48,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:16:48,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:48,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 12:16:48,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:48,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:48,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:48,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:16:48,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:48,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:16:48,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:48,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:48,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:16:48,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:48,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:16:48,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:16:48,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 12:16:48,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:48,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:48,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:48,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:48,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:48,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:48,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:48,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:48,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:49,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:49,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:50,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:50,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:50,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:50,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:53,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:53,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 12:16:53,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-09-25 12:16:53,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 12:16:53,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:53,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:53,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:16:53,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:16:53,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 12:16:53,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:53,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:16:53,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:53,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:53,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:53,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 12:16:53,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:53,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 12:16:53,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:53,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:53,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:16:53,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:53,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 12:16:53,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:16:53,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:16:53,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:53,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:53,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:53,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 12:16:53,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:53,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:16:53,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:53,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:53,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:16:53,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:53,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:16:53,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:16:53,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:16:53,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:53,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:53,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:53,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:16:53,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:53,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:16:53,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:53,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:53,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:16:53,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:53,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:16:53,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:16:53,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:16:53,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:53,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:53,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:53,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:16:53,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:53,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:16:53,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:53,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:53,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:16:53,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:53,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:16:53,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:53,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 12:16:53,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:53,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:53,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:53,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:16:53,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:53,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:16:53,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:53,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:53,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:16:53,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:53,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:16:53,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:53,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 12:16:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:53,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:53,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:53,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:53,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:16:53,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:16:53,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 12:16:53,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:53,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:53,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:16:53,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:53,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:16:53,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:53,345 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 157 proven. 102 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2020-09-25 12:16:53,345 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1719035433] [2020-09-25 12:16:53,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:16:53,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 12:16:53,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078920010] [2020-09-25 12:16:53,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 12:16:53,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:16:53,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 12:16:53,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:16:53,349 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand 10 states. [2020-09-25 12:16:53,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:16:53,701 INFO L93 Difference]: Finished difference Result 120 states and 168 transitions. [2020-09-25 12:16:53,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 12:16:53,702 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 123 [2020-09-25 12:16:53,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:16:53,704 INFO L225 Difference]: With dead ends: 120 [2020-09-25 12:16:53,704 INFO L226 Difference]: Without dead ends: 74 [2020-09-25 12:16:53,705 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2020-09-25 12:16:53,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-09-25 12:16:53,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 64. [2020-09-25 12:16:53,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-09-25 12:16:53,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 79 transitions. [2020-09-25 12:16:53,724 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 79 transitions. Word has length 123 [2020-09-25 12:16:53,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:16:53,727 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 79 transitions. [2020-09-25 12:16:53,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 12:16:53,727 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 79 transitions. [2020-09-25 12:16:53,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 12:16:53,729 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:16:53,729 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:16:53,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 12:16:53,733 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:16:53,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:16:53,734 INFO L82 PathProgramCache]: Analyzing trace with hash 866676589, now seen corresponding path program 4 times [2020-09-25 12:16:53,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:16:53,734 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [628069914] [2020-09-25 12:16:53,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:16:53,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:53,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:53,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:53,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:53,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:55,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:58,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:58,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-25 12:16:58,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 12:16:58,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 12:16:58,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:58,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:58,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:16:58,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:16:58,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 12:16:58,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:16:58,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:16:58,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:58,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:58,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:58,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:16:58,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:58,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:16:58,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:58,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:58,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:16:58,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:58,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:16:58,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:16:58,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:16:58,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:58,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:58,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:58,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:59,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:59,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:03,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:03,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-25 12:17:03,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 12:17:03,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 12:17:03,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:03,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:03,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:17:03,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:17:03,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-25 12:17:03,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:03,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:17:03,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:03,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:03,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:03,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking...