/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label40.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 14:00:29,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 14:00:29,143 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 14:00:29,167 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 14:00:29,168 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 14:00:29,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 14:00:29,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 14:00:29,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 14:00:29,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 14:00:29,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 14:00:29,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 14:00:29,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 14:00:29,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 14:00:29,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 14:00:29,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 14:00:29,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 14:00:29,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 14:00:29,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 14:00:29,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 14:00:29,186 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 14:00:29,187 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 14:00:29,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 14:00:29,189 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 14:00:29,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 14:00:29,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 14:00:29,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 14:00:29,193 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 14:00:29,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 14:00:29,195 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 14:00:29,196 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 14:00:29,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 14:00:29,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 14:00:29,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 14:00:29,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 14:00:29,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 14:00:29,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 14:00:29,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 14:00:29,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 14:00:29,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 14:00:29,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 14:00:29,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 14:00:29,203 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 14:00:29,226 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 14:00:29,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 14:00:29,227 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 14:00:29,227 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 14:00:29,228 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 14:00:29,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 14:00:29,228 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 14:00:29,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 14:00:29,228 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 14:00:29,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 14:00:29,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 14:00:29,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 14:00:29,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 14:00:29,229 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 14:00:29,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 14:00:29,230 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 14:00:29,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 14:00:29,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 14:00:29,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 14:00:29,231 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 14:00:29,231 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 14:00:29,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 14:00:29,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 14:00:29,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 14:00:29,232 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 14:00:29,232 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 14:00:29,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 14:00:29,232 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 14:00:29,232 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 14:00:29,233 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 -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 14:00:29,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 14:00:29,569 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 14:00:29,573 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 14:00:29,575 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 14:00:29,575 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 14:00:29,576 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label40.c [2020-10-12 14:00:29,652 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1b3c38dca/015f219216964e9b87d2be73367c7169/FLAG71f1ed7f6 [2020-10-12 14:00:30,243 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 14:00:30,244 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label40.c [2020-10-12 14:00:30,258 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1b3c38dca/015f219216964e9b87d2be73367c7169/FLAG71f1ed7f6 [2020-10-12 14:00:30,530 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1b3c38dca/015f219216964e9b87d2be73367c7169 [2020-10-12 14:00:30,542 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 14:00:30,545 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 14:00:30,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 14:00:30,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 14:00:30,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 14:00:30,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:00:30" (1/1) ... [2020-10-12 14:00:30,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@605628e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:30, skipping insertion in model container [2020-10-12 14:00:30,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:00:30" (1/1) ... [2020-10-12 14:00:30,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 14:00:30,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 14:00:31,335 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:00:31,340 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 14:00:31,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:00:31,638 INFO L208 MainTranslator]: Completed translation [2020-10-12 14:00:31,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:31 WrapperNode [2020-10-12 14:00:31,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 14:00:31,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 14:00:31,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 14:00:31,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 14:00:31,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:31" (1/1) ... [2020-10-12 14:00:31,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:31" (1/1) ... [2020-10-12 14:00:31,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:31" (1/1) ... [2020-10-12 14:00:31,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:31" (1/1) ... [2020-10-12 14:00:31,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:31" (1/1) ... [2020-10-12 14:00:31,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:31" (1/1) ... [2020-10-12 14:00:31,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:31" (1/1) ... [2020-10-12 14:00:31,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 14:00:31,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 14:00:31,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 14:00:31,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 14:00:31,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:31" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 14:00:31,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 14:00:31,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 14:00:31,907 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 14:00:31,908 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 14:00:31,908 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 14:00:31,908 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 14:00:31,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 14:00:31,911 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 14:00:31,911 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 14:00:31,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 14:00:31,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 14:00:33,543 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 14:00:33,544 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 14:00:33,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:00:33 BoogieIcfgContainer [2020-10-12 14:00:33,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 14:00:33,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 14:00:33,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 14:00:33,556 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 14:00:33,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 02:00:30" (1/3) ... [2020-10-12 14:00:33,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@730b7d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:00:33, skipping insertion in model container [2020-10-12 14:00:33,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:31" (2/3) ... [2020-10-12 14:00:33,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@730b7d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:00:33, skipping insertion in model container [2020-10-12 14:00:33,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:00:33" (3/3) ... [2020-10-12 14:00:33,560 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label40.c [2020-10-12 14:00:33,570 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 14:00:33,578 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 14:00:33,593 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 14:00:33,620 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 14:00:33,620 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 14:00:33,621 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 14:00:33,621 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 14:00:33,621 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 14:00:33,621 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 14:00:33,621 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 14:00:33,621 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 14:00:33,646 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-12 14:00:33,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-12 14:00:33,653 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:33,654 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:00:33,654 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:33,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:33,660 INFO L82 PathProgramCache]: Analyzing trace with hash 854856538, now seen corresponding path program 1 times [2020-10-12 14:00:33,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:33,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2039529319] [2020-10-12 14:00:33,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:33,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:33,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:34,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:34,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 14:00:34,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:34,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 380 [2020-10-12 14:00:34,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:34,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:00:34,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:00:34,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-12 14:00:34,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:00:34,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:00:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:34,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:34,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:34,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:00:34,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:34,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:00:34,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:34,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:00:34,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:34,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:00:34,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:00:34,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:00:34,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2039529319] [2020-10-12 14:00:34,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:00:34,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 14:00:34,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743623068] [2020-10-12 14:00:34,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 14:00:34,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:00:34,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 14:00:34,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 14:00:34,348 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 4 states. [2020-10-12 14:00:36,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:00:36,036 INFO L93 Difference]: Finished difference Result 698 states and 1241 transitions. [2020-10-12 14:00:36,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:00:36,040 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-10-12 14:00:36,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:00:36,076 INFO L225 Difference]: With dead ends: 698 [2020-10-12 14:00:36,076 INFO L226 Difference]: Without dead ends: 380 [2020-10-12 14:00:36,089 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:00:36,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-12 14:00:36,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-12 14:00:36,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-12 14:00:36,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 604 transitions. [2020-10-12 14:00:36,210 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 604 transitions. Word has length 25 [2020-10-12 14:00:36,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:00:36,211 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 604 transitions. [2020-10-12 14:00:36,211 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 14:00:36,211 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 604 transitions. [2020-10-12 14:00:36,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-12 14:00:36,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:36,216 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:00:36,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 14:00:36,217 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:36,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:36,218 INFO L82 PathProgramCache]: Analyzing trace with hash -655878223, now seen corresponding path program 1 times [2020-10-12 14:00:36,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:36,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [155569484] [2020-10-12 14:00:36,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:36,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:36,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:37,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:37,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-12 14:00:37,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:00:37,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 957 [2020-10-12 14:00:37,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:37,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:00:37,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:00:37,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 14:00:37,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:00:37,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:00:37,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:37,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:37,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:37,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:00:37,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:37,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 14:00:37,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:37,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:00:37,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:37,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:00:37,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-12 14:00:37,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:00:37,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:37,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:37,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:37,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 14:00:37,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:37,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-12 14:00:37,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:37,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:00:37,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:00:37,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 14:00:37,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:37,509 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:00:37,510 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [155569484] [2020-10-12 14:00:37,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:00:37,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 14:00:37,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872188151] [2020-10-12 14:00:37,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:00:37,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:00:37,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:00:37,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:00:37,522 INFO L87 Difference]: Start difference. First operand 374 states and 604 transitions. Second operand 7 states. [2020-10-12 14:00:39,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:00:39,819 INFO L93 Difference]: Finished difference Result 1144 states and 1877 transitions. [2020-10-12 14:00:39,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:00:39,820 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 94 [2020-10-12 14:00:39,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:00:39,826 INFO L225 Difference]: With dead ends: 1144 [2020-10-12 14:00:39,827 INFO L226 Difference]: Without dead ends: 776 [2020-10-12 14:00:39,829 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:00:39,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2020-10-12 14:00:39,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 752. [2020-10-12 14:00:39,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 752 states. [2020-10-12 14:00:39,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1067 transitions. [2020-10-12 14:00:39,886 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1067 transitions. Word has length 94 [2020-10-12 14:00:39,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:00:39,887 INFO L479 AbstractCegarLoop]: Abstraction has 752 states and 1067 transitions. [2020-10-12 14:00:39,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:00:39,887 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1067 transitions. [2020-10-12 14:00:39,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-12 14:00:39,889 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:39,889 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:00:39,890 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 14:00:39,890 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:39,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:39,890 INFO L82 PathProgramCache]: Analyzing trace with hash 647025110, now seen corresponding path program 1 times [2020-10-12 14:00:39,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:39,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [281778886] [2020-10-12 14:00:39,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:39,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:40,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:40,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:40,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-12 14:00:40,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:00:40,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 444 [2020-10-12 14:00:40,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:40,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:00:40,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:00:40,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 14:00:40,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:40,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:00:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:40,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:40,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:40,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:00:40,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:40,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:00:40,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:40,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:00:40,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:40,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:00:40,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:40,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:00:40,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:40,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:40,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:40,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:00:40,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:40,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-12 14:00:40,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:40,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:00:40,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:00:40,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 14:00:40,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:40,604 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:00:40,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [281778886] [2020-10-12 14:00:40,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:00:40,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 14:00:40,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069155983] [2020-10-12 14:00:40,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:00:40,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:00:40,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:00:40,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:00:40,608 INFO L87 Difference]: Start difference. First operand 752 states and 1067 transitions. Second operand 7 states. [2020-10-12 14:00:42,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:00:42,633 INFO L93 Difference]: Finished difference Result 1946 states and 2964 transitions. [2020-10-12 14:00:42,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:00:42,638 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 95 [2020-10-12 14:00:42,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:00:42,655 INFO L225 Difference]: With dead ends: 1946 [2020-10-12 14:00:42,655 INFO L226 Difference]: Without dead ends: 1200 [2020-10-12 14:00:42,660 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:00:42,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1200 states. [2020-10-12 14:00:42,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1200 to 1132. [2020-10-12 14:00:42,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1132 states. [2020-10-12 14:00:42,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 1547 transitions. [2020-10-12 14:00:42,772 INFO L78 Accepts]: Start accepts. Automaton has 1132 states and 1547 transitions. Word has length 95 [2020-10-12 14:00:42,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:00:42,773 INFO L479 AbstractCegarLoop]: Abstraction has 1132 states and 1547 transitions. [2020-10-12 14:00:42,773 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:00:42,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 1547 transitions. [2020-10-12 14:00:42,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-12 14:00:42,783 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:42,783 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:00:42,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 14:00:42,784 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:42,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:42,784 INFO L82 PathProgramCache]: Analyzing trace with hash -981937415, now seen corresponding path program 1 times [2020-10-12 14:00:42,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:42,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1520409899] [2020-10-12 14:00:42,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:42,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:42,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:42,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:43,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:43,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 14:00:43,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:00:43,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 900 [2020-10-12 14:00:43,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:43,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:00:43,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:00:43,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 14:00:43,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:43,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:00:43,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:43,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:43,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:43,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:00:43,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:43,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:00:43,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:43,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:00:43,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:43,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:00:43,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:43,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:00:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:43,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:43,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:43,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 14:00:43,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:43,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-12 14:00:43,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:43,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:00:43,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:00:43,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 14:00:43,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:00:44,030 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:00:44,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1520409899] [2020-10-12 14:00:44,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:00:44,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 14:00:44,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097772533] [2020-10-12 14:00:44,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:00:44,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:00:44,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:00:44,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:00:44,033 INFO L87 Difference]: Start difference. First operand 1132 states and 1547 transitions. Second operand 7 states. [2020-10-12 14:00:45,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:00:45,806 INFO L93 Difference]: Finished difference Result 2460 states and 3332 transitions. [2020-10-12 14:00:45,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:00:45,807 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 98 [2020-10-12 14:00:45,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:00:45,815 INFO L225 Difference]: With dead ends: 2460 [2020-10-12 14:00:45,816 INFO L226 Difference]: Without dead ends: 1334 [2020-10-12 14:00:45,819 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:00:45,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2020-10-12 14:00:45,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1316. [2020-10-12 14:00:45,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1316 states. [2020-10-12 14:00:45,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1316 states to 1316 states and 1749 transitions. [2020-10-12 14:00:45,867 INFO L78 Accepts]: Start accepts. Automaton has 1316 states and 1749 transitions. Word has length 98 [2020-10-12 14:00:45,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:00:45,868 INFO L479 AbstractCegarLoop]: Abstraction has 1316 states and 1749 transitions. [2020-10-12 14:00:45,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:00:45,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1316 states and 1749 transitions. [2020-10-12 14:00:45,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-12 14:00:45,869 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:45,870 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:00:45,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 14:00:45,870 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:45,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:45,871 INFO L82 PathProgramCache]: Analyzing trace with hash 372022290, now seen corresponding path program 1 times [2020-10-12 14:00:45,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:45,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1021514944] [2020-10-12 14:00:45,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:45,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:45,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:46,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:46,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:00:46,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:46,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-12 14:00:46,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:46,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:00:46,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-12 14:00:46,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 14:00:46,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:46,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:00:46,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:46,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:46,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:46,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:00:46,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:46,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:00:46,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:46,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:46,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:46,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:46,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:46,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:00:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:46,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:46,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:46,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 14:00:46,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:46,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-12 14:00:46,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:46,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:00:46,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:46,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 14:00:46,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:46,313 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:00:46,314 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1021514944] [2020-10-12 14:00:46,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:00:46,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 14:00:46,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110286931] [2020-10-12 14:00:46,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 14:00:46,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:00:46,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 14:00:46,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:00:46,316 INFO L87 Difference]: Start difference. First operand 1316 states and 1749 transitions. Second operand 6 states. [2020-10-12 14:00:48,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:00:48,704 INFO L93 Difference]: Finished difference Result 3004 states and 4178 transitions. [2020-10-12 14:00:48,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 14:00:48,704 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2020-10-12 14:00:48,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:00:48,716 INFO L225 Difference]: With dead ends: 3004 [2020-10-12 14:00:48,716 INFO L226 Difference]: Without dead ends: 1876 [2020-10-12 14:00:48,719 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:00:48,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1876 states. [2020-10-12 14:00:48,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1876 to 1498. [2020-10-12 14:00:48,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1498 states. [2020-10-12 14:00:48,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 1939 transitions. [2020-10-12 14:00:48,769 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 1939 transitions. Word has length 109 [2020-10-12 14:00:48,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:00:48,770 INFO L479 AbstractCegarLoop]: Abstraction has 1498 states and 1939 transitions. [2020-10-12 14:00:48,770 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 14:00:48,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 1939 transitions. [2020-10-12 14:00:48,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-10-12 14:00:48,777 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:48,777 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:00:48,777 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 14:00:48,778 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:48,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:48,778 INFO L82 PathProgramCache]: Analyzing trace with hash -1725856435, now seen corresponding path program 1 times [2020-10-12 14:00:48,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:48,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1417748613] [2020-10-12 14:00:48,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:48,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:48,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:49,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:49,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:50,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:52,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:52,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 14:00:52,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:00:52,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3413 [2020-10-12 14:00:52,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:52,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:00:52,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:00:52,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 187 [2020-10-12 14:00:52,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:52,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:00:52,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:52,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:52,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:52,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:00:52,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:52,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:00:52,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:52,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:00:52,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:52,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:00:52,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:52,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:00:52,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:52,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:52,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:52,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 14:00:52,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:52,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-12 14:00:52,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:52,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:00:52,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:00:52,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 14:00:52,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:52,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-12 14:00:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:52,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:52,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:52,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 14:00:52,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:52,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-12 14:00:52,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:52,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:00:52,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:00:52,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-12 14:00:52,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:52,887 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 37 proven. 79 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 14:00:52,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1417748613] [2020-10-12 14:00:52,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:00:52,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:00:52,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226074623] [2020-10-12 14:00:52,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:00:52,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:00:52,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:00:52,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:00:52,891 INFO L87 Difference]: Start difference. First operand 1498 states and 1939 transitions. Second operand 8 states. [2020-10-12 14:00:54,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:00:54,741 INFO L93 Difference]: Finished difference Result 3034 states and 3942 transitions. [2020-10-12 14:00:54,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 14:00:54,742 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 204 [2020-10-12 14:00:54,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:00:54,756 INFO L225 Difference]: With dead ends: 3034 [2020-10-12 14:00:54,756 INFO L226 Difference]: Without dead ends: 1540 [2020-10-12 14:00:54,760 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:00:54,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1540 states. [2020-10-12 14:00:54,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1540 to 1500. [2020-10-12 14:00:54,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1500 states. [2020-10-12 14:00:54,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 1932 transitions. [2020-10-12 14:00:54,808 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 1932 transitions. Word has length 204 [2020-10-12 14:00:54,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:00:54,809 INFO L479 AbstractCegarLoop]: Abstraction has 1500 states and 1932 transitions. [2020-10-12 14:00:54,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:00:54,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 1932 transitions. [2020-10-12 14:00:54,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2020-10-12 14:00:54,813 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:54,814 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:00:54,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 14:00:54,814 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:54,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:54,815 INFO L82 PathProgramCache]: Analyzing trace with hash 209947509, now seen corresponding path program 1 times [2020-10-12 14:00:54,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:54,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1201686559] [2020-10-12 14:00:54,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:54,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:54,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:54,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:55,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:57,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:58,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:58,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:59,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:59,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 312 [2020-10-12 14:00:59,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 14:00:59,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-12 14:00:59,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:59,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:00:59,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:00:59,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-12 14:00:59,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:00:59,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:00:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:59,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:59,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:59,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:00:59,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:59,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 14:00:59,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:59,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:00:59,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:59,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:00:59,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:59,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:00:59,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:00,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:00,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:00,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:01:00,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:00,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-12 14:01:00,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:00,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:01:00,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:00,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-12 14:01:00,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:00,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 14:01:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:00,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:00,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:00,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 14:01:00,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:00,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:01:00,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:00,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:00,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-12 14:01:00,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:00,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:00,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-10-12 14:01:00,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:00,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:00,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:00,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 14:01:00,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:00,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:01:00,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:00,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:00,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-12 14:01:00,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:00,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:00,427 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 54 proven. 154 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-10-12 14:01:00,427 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1201686559] [2020-10-12 14:01:00,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:01:00,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:01:00,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482447501] [2020-10-12 14:01:00,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:01:00,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:00,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:01:00,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:01:00,430 INFO L87 Difference]: Start difference. First operand 1500 states and 1932 transitions. Second operand 7 states. [2020-10-12 14:01:02,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:01:02,646 INFO L93 Difference]: Finished difference Result 3768 states and 5021 transitions. [2020-10-12 14:01:02,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:01:02,652 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 298 [2020-10-12 14:01:02,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:01:02,663 INFO L225 Difference]: With dead ends: 3768 [2020-10-12 14:01:02,663 INFO L226 Difference]: Without dead ends: 2456 [2020-10-12 14:01:02,668 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:01:02,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2456 states. [2020-10-12 14:01:02,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2456 to 2452. [2020-10-12 14:01:02,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2452 states. [2020-10-12 14:01:02,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2452 states to 2452 states and 3136 transitions. [2020-10-12 14:01:02,742 INFO L78 Accepts]: Start accepts. Automaton has 2452 states and 3136 transitions. Word has length 298 [2020-10-12 14:01:02,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:01:02,743 INFO L479 AbstractCegarLoop]: Abstraction has 2452 states and 3136 transitions. [2020-10-12 14:01:02,743 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:01:02,743 INFO L276 IsEmpty]: Start isEmpty. Operand 2452 states and 3136 transitions. [2020-10-12 14:01:02,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2020-10-12 14:01:02,751 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:01:02,752 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:01:02,752 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 14:01:02,752 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:01:02,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:01:02,753 INFO L82 PathProgramCache]: Analyzing trace with hash 2093843690, now seen corresponding path program 1 times [2020-10-12 14:01:02,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:01:02,753 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [297209853] [2020-10-12 14:01:02,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:01:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:02,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:03,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:03,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:04,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:06,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:07,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:07,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 427 [2020-10-12 14:01:07,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:01:07,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-12 14:01:07,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:07,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:01:07,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 305 [2020-10-12 14:01:07,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 14:01:07,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:07,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:01:07,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:07,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:07,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:07,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:01:07,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:07,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:01:07,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:07,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:07,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:07,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:07,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:08,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:01:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:08,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:08,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:08,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:01:08,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:08,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:01:08,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:08,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:08,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:08,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:08,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:08,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:01:08,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:08,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:08,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:08,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:01:08,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:08,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:01:08,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:08,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:08,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:08,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:08,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:08,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:01:08,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:08,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:08,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:08,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 14:01:08,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:08,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 14:01:08,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:08,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:01:08,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:08,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 14:01:08,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:08,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2020-10-12 14:01:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:08,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:08,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:08,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:08,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 14:01:08,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:01:08,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 337 [2020-10-12 14:01:08,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:08,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:01:08,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:08,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-12 14:01:08,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:09,040 INFO L134 CoverageAnalysis]: Checked inductivity of 587 backedges. 335 proven. 2 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-12 14:01:09,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [297209853] [2020-10-12 14:01:09,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:01:09,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:01:09,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799165239] [2020-10-12 14:01:09,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:01:09,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:09,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:01:09,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:01:09,043 INFO L87 Difference]: Start difference. First operand 2452 states and 3136 transitions. Second operand 7 states. [2020-10-12 14:01:10,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:01:10,568 INFO L93 Difference]: Finished difference Result 4593 states and 6004 transitions. [2020-10-12 14:01:10,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:01:10,569 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 411 [2020-10-12 14:01:10,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:01:10,580 INFO L225 Difference]: With dead ends: 4593 [2020-10-12 14:01:10,580 INFO L226 Difference]: Without dead ends: 2480 [2020-10-12 14:01:10,586 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:01:10,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2480 states. [2020-10-12 14:01:10,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2480 to 2452. [2020-10-12 14:01:10,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2452 states. [2020-10-12 14:01:10,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2452 states to 2452 states and 3124 transitions. [2020-10-12 14:01:10,647 INFO L78 Accepts]: Start accepts. Automaton has 2452 states and 3124 transitions. Word has length 411 [2020-10-12 14:01:10,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:01:10,649 INFO L479 AbstractCegarLoop]: Abstraction has 2452 states and 3124 transitions. [2020-10-12 14:01:10,649 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:01:10,649 INFO L276 IsEmpty]: Start isEmpty. Operand 2452 states and 3124 transitions. [2020-10-12 14:01:10,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2020-10-12 14:01:10,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:01:10,657 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:01:10,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 14:01:10,658 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:01:10,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:01:10,659 INFO L82 PathProgramCache]: Analyzing trace with hash -178048287, now seen corresponding path program 1 times [2020-10-12 14:01:10,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:01:10,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1336585779] [2020-10-12 14:01:10,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:01:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:10,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:10,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:10,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:12,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:15,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:15,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 428 [2020-10-12 14:01:15,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:01:15,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5060 [2020-10-12 14:01:15,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:15,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 14:01:15,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 306 [2020-10-12 14:01:15,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-12 14:01:15,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:15,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:01:15,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:15,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:15,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:15,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:01:15,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:15,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:01:15,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:15,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:15,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:15,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:15,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:15,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:01:15,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:15,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:15,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:15,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:01:15,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:15,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 14:01:15,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:15,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:15,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:15,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:15,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:16,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:01:16,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:16,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:16,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:16,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:01:16,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:16,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 14:01:16,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:16,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:16,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:16,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:16,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:16,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:01:16,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:16,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:16,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:16,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 14:01:16,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:16,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-12 14:01:16,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:16,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:01:16,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:16,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 14:01:16,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:16,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2020-10-12 14:01:16,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:16,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:16,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:16,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:16,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 14:01:16,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:01:16,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-10-12 14:01:16,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:16,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 14:01:16,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:16,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-12 14:01:16,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:16,804 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-10-12 14:01:16,990 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-12 14:01:17,209 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-12 14:01:18,361 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 336 proven. 2 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2020-10-12 14:01:18,365 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1336585779] [2020-10-12 14:01:18,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:01:18,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 14:01:18,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368949336] [2020-10-12 14:01:18,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 14:01:18,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:18,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 14:01:18,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:01:18,367 INFO L87 Difference]: Start difference. First operand 2452 states and 3124 transitions. Second operand 10 states. [2020-10-12 14:01:19,806 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-10-12 14:01:21,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:01:21,382 INFO L93 Difference]: Finished difference Result 4728 states and 6100 transitions. [2020-10-12 14:01:21,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 14:01:21,383 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 412 [2020-10-12 14:01:21,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:01:21,393 INFO L225 Difference]: With dead ends: 4728 [2020-10-12 14:01:21,393 INFO L226 Difference]: Without dead ends: 2538 [2020-10-12 14:01:21,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2020-10-12 14:01:21,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2020-10-12 14:01:21,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 2434. [2020-10-12 14:01:21,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2434 states. [2020-10-12 14:01:21,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2434 states to 2434 states and 2748 transitions. [2020-10-12 14:01:21,473 INFO L78 Accepts]: Start accepts. Automaton has 2434 states and 2748 transitions. Word has length 412 [2020-10-12 14:01:21,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:01:21,474 INFO L479 AbstractCegarLoop]: Abstraction has 2434 states and 2748 transitions. [2020-10-12 14:01:21,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 14:01:21,474 INFO L276 IsEmpty]: Start isEmpty. Operand 2434 states and 2748 transitions. [2020-10-12 14:01:21,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2020-10-12 14:01:21,489 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:01:21,490 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:01:21,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 14:01:21,490 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:01:21,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:01:21,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1962713538, now seen corresponding path program 1 times [2020-10-12 14:01:21,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:01:21,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1859920018] [2020-10-12 14:01:21,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:01:21,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:21,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:21,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:22,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:25,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:26,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:26,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 637 [2020-10-12 14:01:26,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:01:26,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-12 14:01:26,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:26,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:01:26,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 343 [2020-10-12 14:01:26,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-12 14:01:26,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:26,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:01:26,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:26,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:26,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:26,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:01:26,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:26,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:01:26,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:26,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:26,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:26,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:26,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:26,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:01:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:26,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:26,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:26,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:01:26,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:26,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:01:26,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:26,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:26,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:26,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:26,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:26,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:01:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:26,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:26,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:26,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:01:26,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:26,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:01:26,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:26,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:26,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:26,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:26,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:26,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:01:26,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:26,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:26,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:26,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:01:26,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:26,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-12 14:01:26,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:26,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:01:26,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:26,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-12 14:01:26,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:27,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-12 14:01:27,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:27,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:27,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:27,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:27,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:01:27,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:01:27,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 574 [2020-10-12 14:01:27,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:27,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:01:27,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:27,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:01:27,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:28,074 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2020-10-12 14:01:28,234 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 52 [2020-10-12 14:01:28,386 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2020-10-12 14:01:28,551 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 58 [2020-10-12 14:01:28,739 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 58 [2020-10-12 14:01:29,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2020-10-12 14:01:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:29,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:29,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:29,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 14:01:29,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:29,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:01:29,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:29,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:29,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-12 14:01:29,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:29,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:30,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1091 backedges. 432 proven. 85 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2020-10-12 14:01:30,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1859920018] [2020-10-12 14:01:30,515 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:01:30,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:01:30,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870375193] [2020-10-12 14:01:30,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:01:30,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:30,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:01:30,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:01:30,517 INFO L87 Difference]: Start difference. First operand 2434 states and 2748 transitions. Second operand 13 states. [2020-10-12 14:01:31,126 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2020-10-12 14:01:31,263 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2020-10-12 14:01:31,486 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2020-10-12 14:01:31,674 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2020-10-12 14:01:32,306 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2020-10-12 14:01:32,758 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 80 [2020-10-12 14:01:33,176 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 47 [2020-10-12 14:01:33,327 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 51 [2020-10-12 14:01:33,583 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 54 [2020-10-12 14:01:33,775 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2020-10-12 14:01:34,150 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 59 [2020-10-12 14:01:34,530 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 62 [2020-10-12 14:01:34,873 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 69 [2020-10-12 14:01:35,121 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2020-10-12 14:01:35,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:01:35,458 INFO L93 Difference]: Finished difference Result 4878 states and 5538 transitions. [2020-10-12 14:01:35,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 14:01:35,459 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 619 [2020-10-12 14:01:35,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:01:35,470 INFO L225 Difference]: With dead ends: 4878 [2020-10-12 14:01:35,470 INFO L226 Difference]: Without dead ends: 2407 [2020-10-12 14:01:35,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=264, Invalid=666, Unknown=0, NotChecked=0, Total=930 [2020-10-12 14:01:35,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2407 states. [2020-10-12 14:01:35,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2407 to 2179. [2020-10-12 14:01:35,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2179 states. [2020-10-12 14:01:35,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2179 states to 2179 states and 2489 transitions. [2020-10-12 14:01:35,546 INFO L78 Accepts]: Start accepts. Automaton has 2179 states and 2489 transitions. Word has length 619 [2020-10-12 14:01:35,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:01:35,547 INFO L479 AbstractCegarLoop]: Abstraction has 2179 states and 2489 transitions. [2020-10-12 14:01:35,547 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:01:35,547 INFO L276 IsEmpty]: Start isEmpty. Operand 2179 states and 2489 transitions. [2020-10-12 14:01:35,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2020-10-12 14:01:35,563 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:01:35,564 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:01:35,564 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 14:01:35,564 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:01:35,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:01:35,565 INFO L82 PathProgramCache]: Analyzing trace with hash -106541939, now seen corresponding path program 1 times [2020-10-12 14:01:35,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:01:35,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [226176606] [2020-10-12 14:01:35,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:01:35,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:35,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:36,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:37,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:37,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:40,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:40,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 644 [2020-10-12 14:01:40,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:01:40,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 14:01:40,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:40,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:01:40,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-12 14:01:40,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-12 14:01:40,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:40,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:01:40,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:40,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:40,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:40,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:01:40,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:40,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:01:40,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:40,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:40,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:40,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:40,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:40,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:01:40,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:40,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:40,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:40,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:01:40,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:40,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:01:40,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:40,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:40,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:40,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:40,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:40,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:01:40,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:40,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:40,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:40,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:01:40,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:40,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:01:40,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:40,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:40,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:40,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:40,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:40,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:01:40,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:41,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:41,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:41,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:01:41,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:41,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 14:01:41,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:41,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:01:41,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:41,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-12 14:01:41,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:41,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:01:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:41,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:41,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:41,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:41,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:01:41,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:01:41,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-10-12 14:01:41,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:41,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:01:41,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:41,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:01:41,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:41,839 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-10-12 14:01:42,016 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2020-10-12 14:01:42,174 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2020-10-12 14:01:42,347 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2020-10-12 14:01:42,544 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2020-10-12 14:01:42,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2020-10-12 14:01:42,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:42,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:42,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:42,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 14:01:42,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:42,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:01:42,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:42,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:42,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-12 14:01:42,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:42,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:44,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1098 backedges. 439 proven. 85 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2020-10-12 14:01:44,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [226176606] [2020-10-12 14:01:44,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:01:44,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:01:44,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734988570] [2020-10-12 14:01:44,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:01:44,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:44,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:01:44,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:01:44,070 INFO L87 Difference]: Start difference. First operand 2179 states and 2489 transitions. Second operand 13 states. [2020-10-12 14:01:44,725 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2020-10-12 14:01:45,255 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2020-10-12 14:01:45,527 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2020-10-12 14:01:45,698 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2020-10-12 14:01:45,901 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2020-10-12 14:01:46,111 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 85 [2020-10-12 14:01:46,359 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 52 [2020-10-12 14:01:47,043 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2020-10-12 14:01:47,550 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2020-10-12 14:01:47,825 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2020-10-12 14:01:48,013 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2020-10-12 14:01:48,260 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 65 [2020-10-12 14:01:48,483 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 68 [2020-10-12 14:01:48,765 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2020-10-12 14:01:49,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:01:49,097 INFO L93 Difference]: Finished difference Result 4360 states and 5010 transitions. [2020-10-12 14:01:49,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 14:01:49,099 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 626 [2020-10-12 14:01:49,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:01:49,108 INFO L225 Difference]: With dead ends: 4360 [2020-10-12 14:01:49,108 INFO L226 Difference]: Without dead ends: 2346 [2020-10-12 14:01:49,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=253, Invalid=617, Unknown=0, NotChecked=0, Total=870 [2020-10-12 14:01:49,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2346 states. [2020-10-12 14:01:49,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2346 to 2340. [2020-10-12 14:01:49,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2340 states. [2020-10-12 14:01:49,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2340 states to 2340 states and 2659 transitions. [2020-10-12 14:01:49,163 INFO L78 Accepts]: Start accepts. Automaton has 2340 states and 2659 transitions. Word has length 626 [2020-10-12 14:01:49,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:01:49,164 INFO L479 AbstractCegarLoop]: Abstraction has 2340 states and 2659 transitions. [2020-10-12 14:01:49,165 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:01:49,165 INFO L276 IsEmpty]: Start isEmpty. Operand 2340 states and 2659 transitions. [2020-10-12 14:01:49,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2020-10-12 14:01:49,171 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:01:49,172 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:01:49,172 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 14:01:49,172 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:01:49,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:01:49,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1549585773, now seen corresponding path program 1 times [2020-10-12 14:01:49,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:01:49,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1895709886] [2020-10-12 14:01:49,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:01:49,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:49,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:49,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:49,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:52,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:54,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:54,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 660 [2020-10-12 14:01:54,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:01:54,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-12 14:01:54,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:54,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:01:54,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 366 [2020-10-12 14:01:54,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-12 14:01:54,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:54,536 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-10-12 14:01:54,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:01:54,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:54,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:54,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:54,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:01:54,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:54,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:01:54,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:54,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:54,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:54,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:54,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:54,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:01:54,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:54,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:54,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:54,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:01:54,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:54,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:01:54,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:54,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:54,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:54,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:54,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:54,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:01:54,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:54,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:54,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:54,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:01:54,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:54,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:01:54,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:54,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:54,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:54,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:54,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:54,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:01:54,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:54,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:54,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:54,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-12 14:01:54,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:54,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-12 14:01:54,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:54,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:01:54,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:54,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 14:01:54,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:54,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2020-10-12 14:01:54,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:54,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:54,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:55,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:55,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:01:55,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:01:55,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 451 [2020-10-12 14:01:55,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:55,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:01:55,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:55,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:01:55,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:55,924 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2020-10-12 14:01:56,158 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2020-10-12 14:01:56,404 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 68 [2020-10-12 14:01:56,664 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 72 [2020-10-12 14:01:56,933 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2020-10-12 14:01:57,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 539 [2020-10-12 14:01:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:57,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:57,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:57,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 14:01:57,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:57,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:01:57,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:57,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:57,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-12 14:01:57,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:57,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:59,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1114 backedges. 455 proven. 85 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2020-10-12 14:01:59,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1895709886] [2020-10-12 14:01:59,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:01:59,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:01:59,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497596547] [2020-10-12 14:01:59,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:01:59,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:59,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:01:59,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:01:59,255 INFO L87 Difference]: Start difference. First operand 2340 states and 2659 transitions. Second operand 13 states. [2020-10-12 14:01:59,996 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 59 [2020-10-12 14:02:00,229 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 59 [2020-10-12 14:02:00,644 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2020-10-12 14:02:00,867 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 60 [2020-10-12 14:02:01,170 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2020-10-12 14:02:01,500 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 68 [2020-10-12 14:02:01,832 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 83 [2020-10-12 14:02:02,238 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2020-10-12 14:02:02,593 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2020-10-12 14:02:02,916 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 58 [2020-10-12 14:02:03,382 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 56 [2020-10-12 14:02:03,641 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 55 [2020-10-12 14:02:04,019 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 57 [2020-10-12 14:02:04,366 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 60 [2020-10-12 14:02:04,757 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 64 [2020-10-12 14:02:05,130 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 67 [2020-10-12 14:02:05,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:02:05,690 INFO L93 Difference]: Finished difference Result 4692 states and 5372 transitions. [2020-10-12 14:02:05,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-12 14:02:05,691 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 642 [2020-10-12 14:02:05,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:02:05,699 INFO L225 Difference]: With dead ends: 4692 [2020-10-12 14:02:05,700 INFO L226 Difference]: Without dead ends: 2354 [2020-10-12 14:02:05,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=280, Invalid=712, Unknown=0, NotChecked=0, Total=992 [2020-10-12 14:02:05,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2354 states. [2020-10-12 14:02:05,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2354 to 2338. [2020-10-12 14:02:05,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2338 states. [2020-10-12 14:02:05,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2338 states to 2338 states and 2636 transitions. [2020-10-12 14:02:05,752 INFO L78 Accepts]: Start accepts. Automaton has 2338 states and 2636 transitions. Word has length 642 [2020-10-12 14:02:05,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:02:05,752 INFO L479 AbstractCegarLoop]: Abstraction has 2338 states and 2636 transitions. [2020-10-12 14:02:05,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:02:05,753 INFO L276 IsEmpty]: Start isEmpty. Operand 2338 states and 2636 transitions. [2020-10-12 14:02:05,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 687 [2020-10-12 14:02:05,759 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:02:05,760 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:02:05,760 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 14:02:05,760 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:02:05,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:02:05,761 INFO L82 PathProgramCache]: Analyzing trace with hash 2076803029, now seen corresponding path program 1 times [2020-10-12 14:02:05,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:02:05,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [552074333] [2020-10-12 14:02:05,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:02:05,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:05,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:06,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:06,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:07,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:10,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:10,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 704 [2020-10-12 14:02:10,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:02:10,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-12 14:02:10,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:10,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:02:10,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 410 [2020-10-12 14:02:10,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-12 14:02:10,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:11,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:02:11,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:11,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:11,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:11,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:02:11,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:11,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:02:11,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:11,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:11,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:11,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:11,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:11,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:02:11,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:11,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:11,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:11,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:11,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:11,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:02:11,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:11,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:11,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:11,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:11,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:11,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:02:11,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:11,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:11,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:11,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:02:11,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:11,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 14:02:11,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:11,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:11,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:11,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:11,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:11,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:02:11,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:11,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:11,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:11,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:02:11,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:11,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-12 14:02:11,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:11,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:02:11,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:11,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-12 14:02:11,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:11,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2020-10-12 14:02:11,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:11,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:11,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:11,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:11,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:02:11,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:02:11,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-10-12 14:02:11,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:11,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:02:11,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:02:11,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:02:11,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:12,143 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2020-10-12 14:02:12,333 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2020-10-12 14:02:12,527 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2020-10-12 14:02:12,722 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2020-10-12 14:02:12,930 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2020-10-12 14:02:13,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2020-10-12 14:02:13,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:13,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:13,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:13,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 14:02:13,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:13,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:02:13,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:13,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:13,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-12 14:02:13,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:13,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:14,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1158 backedges. 499 proven. 85 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2020-10-12 14:02:14,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [552074333] [2020-10-12 14:02:14,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:02:14,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:02:14,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315601333] [2020-10-12 14:02:14,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:02:14,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:02:14,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:02:14,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:02:14,581 INFO L87 Difference]: Start difference. First operand 2338 states and 2636 transitions. Second operand 13 states. [2020-10-12 14:02:15,154 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2020-10-12 14:02:15,354 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-10-12 14:02:15,602 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-12 14:02:15,769 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-12 14:02:16,058 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2020-10-12 14:02:16,338 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-10-12 14:02:16,665 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 84 [2020-10-12 14:02:17,629 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2020-10-12 14:02:17,858 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 58 [2020-10-12 14:02:18,140 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2020-10-12 14:02:18,336 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2020-10-12 14:02:18,730 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2020-10-12 14:02:19,074 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2020-10-12 14:02:19,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:02:19,633 INFO L93 Difference]: Finished difference Result 4678 states and 5301 transitions. [2020-10-12 14:02:19,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 14:02:19,633 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 686 [2020-10-12 14:02:19,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:02:19,646 INFO L225 Difference]: With dead ends: 4678 [2020-10-12 14:02:19,646 INFO L226 Difference]: Without dead ends: 2422 [2020-10-12 14:02:19,652 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=252, Invalid=618, Unknown=0, NotChecked=0, Total=870 [2020-10-12 14:02:19,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2422 states. [2020-10-12 14:02:19,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2422 to 2412. [2020-10-12 14:02:19,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2412 states. [2020-10-12 14:02:19,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 2711 transitions. [2020-10-12 14:02:19,725 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 2711 transitions. Word has length 686 [2020-10-12 14:02:19,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:02:19,729 INFO L479 AbstractCegarLoop]: Abstraction has 2412 states and 2711 transitions. [2020-10-12 14:02:19,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:02:19,730 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 2711 transitions. [2020-10-12 14:02:19,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 708 [2020-10-12 14:02:19,766 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:02:19,766 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:02:19,767 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 14:02:19,767 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:02:19,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:02:19,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1594315062, now seen corresponding path program 1 times [2020-10-12 14:02:19,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:02:19,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1036712056] [2020-10-12 14:02:19,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:02:19,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:20,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:20,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:20,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:21,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:23,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:24,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:24,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 727 [2020-10-12 14:02:24,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:02:24,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 14:02:24,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:24,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:02:24,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 433 [2020-10-12 14:02:24,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:02:24,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:25,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:02:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:25,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:25,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:25,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:02:25,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:25,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:02:25,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:25,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:25,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:25,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:25,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:25,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:02:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:25,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:25,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:25,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:25,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:25,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:02:25,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:25,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:25,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:25,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:25,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:25,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:02:25,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:25,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:25,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:25,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:02:25,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:25,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:02:25,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:25,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:25,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:25,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:25,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:25,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:02:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:25,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:25,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:25,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:02:25,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:25,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:02:25,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:25,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:25,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:25,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:25,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:25,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:02:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:25,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:25,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:25,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:02:25,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:25,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:02:25,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:25,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:02:25,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:25,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 14:02:25,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:25,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:02:25,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:25,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:25,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:25,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:25,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:02:25,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:02:25,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 508 [2020-10-12 14:02:25,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:25,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:02:25,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:02:25,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:02:25,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:26,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 604 [2020-10-12 14:02:26,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:26,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:26,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:26,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 14:02:26,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:26,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 14:02:26,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:26,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:26,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-12 14:02:26,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:26,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:27,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1521 backedges. 544 proven. 85 refuted. 0 times theorem prover too weak. 892 trivial. 0 not checked. [2020-10-12 14:02:27,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1036712056] [2020-10-12 14:02:27,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:02:27,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:02:27,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330802074] [2020-10-12 14:02:27,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:02:27,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:02:27,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:02:27,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:02:27,796 INFO L87 Difference]: Start difference. First operand 2412 states and 2711 transitions. Second operand 13 states. [2020-10-12 14:02:28,754 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2020-10-12 14:02:29,091 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2020-10-12 14:02:29,243 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-12 14:02:29,671 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-10-12 14:02:29,822 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 68 [2020-10-12 14:02:30,090 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2020-10-12 14:02:30,790 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 54 [2020-10-12 14:02:31,179 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 57 [2020-10-12 14:02:31,346 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 59 [2020-10-12 14:02:31,523 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 63 [2020-10-12 14:02:31,963 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 65 [2020-10-12 14:02:32,217 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 68 [2020-10-12 14:02:32,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:02:32,672 INFO L93 Difference]: Finished difference Result 4824 states and 5446 transitions. [2020-10-12 14:02:32,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 14:02:32,673 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 707 [2020-10-12 14:02:32,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:02:32,684 INFO L225 Difference]: With dead ends: 4824 [2020-10-12 14:02:32,684 INFO L226 Difference]: Without dead ends: 2595 [2020-10-12 14:02:32,689 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=258, Invalid=612, Unknown=0, NotChecked=0, Total=870 [2020-10-12 14:02:32,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2595 states. [2020-10-12 14:02:32,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2595 to 2589. [2020-10-12 14:02:32,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2589 states. [2020-10-12 14:02:32,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2589 states to 2589 states and 2892 transitions. [2020-10-12 14:02:32,734 INFO L78 Accepts]: Start accepts. Automaton has 2589 states and 2892 transitions. Word has length 707 [2020-10-12 14:02:32,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:02:32,735 INFO L479 AbstractCegarLoop]: Abstraction has 2589 states and 2892 transitions. [2020-10-12 14:02:32,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:02:32,735 INFO L276 IsEmpty]: Start isEmpty. Operand 2589 states and 2892 transitions. [2020-10-12 14:02:32,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 763 [2020-10-12 14:02:32,743 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:02:32,744 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:02:32,744 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 14:02:32,744 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:02:32,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:02:32,745 INFO L82 PathProgramCache]: Analyzing trace with hash -2115996243, now seen corresponding path program 1 times [2020-10-12 14:02:32,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:02:32,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [4982979] [2020-10-12 14:02:32,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:02:32,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:32,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:33,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:34,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:34,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:37,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:37,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 782 [2020-10-12 14:02:37,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:02:37,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-12 14:02:37,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:37,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:02:37,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-12 14:02:37,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-12 14:02:37,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:38,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:02:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:38,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:38,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:38,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:02:38,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:38,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:02:38,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:38,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:38,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:38,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:38,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 14:02:38,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:02:38,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:38,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:38,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:38,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:38,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:38,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:02:38,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:38,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:38,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:38,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:38,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:02:38,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:02:38,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:38,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:38,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:38,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:02:38,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:38,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-12 14:02:38,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:38,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:02:38,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:38,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-12 14:02:38,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:38,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:02:38,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:38,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:38,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:38,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:38,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:02:38,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:02:38,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 444 [2020-10-12 14:02:38,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:38,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:02:38,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:02:38,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-12 14:02:38,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:39,269 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-10-12 14:02:39,457 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2020-10-12 14:02:39,778 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 59 [2020-10-12 14:02:39,980 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2020-10-12 14:02:40,190 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 55 [2020-10-12 14:02:40,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2020-10-12 14:02:40,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:40,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:40,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:40,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:02:40,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:40,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:02:40,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:40,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:40,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 14:02:40,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:40,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:40,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2020-10-12 14:02:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:40,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:40,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:40,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:02:40,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:40,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 14:02:40,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:40,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:40,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-12 14:02:40,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:40,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:40,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 659 [2020-10-12 14:02:40,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:40,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:40,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:40,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 14:02:40,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:40,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 14:02:40,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:40,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:40,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-12 14:02:40,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:40,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:42,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1556 backedges. 350 proven. 332 refuted. 0 times theorem prover too weak. 874 trivial. 0 not checked. [2020-10-12 14:02:42,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [4982979] [2020-10-12 14:02:42,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:02:42,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:02:42,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389828378] [2020-10-12 14:02:42,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:02:42,024 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:02:42,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:02:42,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:02:42,024 INFO L87 Difference]: Start difference. First operand 2589 states and 2892 transitions. Second operand 13 states. [2020-10-12 14:02:43,036 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-10-12 14:02:43,231 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2020-10-12 14:02:43,600 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 85 [2020-10-12 14:02:43,948 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 82 [2020-10-12 14:02:44,372 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2020-10-12 14:02:44,662 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2020-10-12 14:02:45,113 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 97 [2020-10-12 14:02:46,376 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 55 [2020-10-12 14:02:46,568 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2020-10-12 14:02:46,874 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 62 [2020-10-12 14:02:47,240 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 59 [2020-10-12 14:02:47,455 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 59 [2020-10-12 14:02:47,792 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 63 [2020-10-12 14:02:48,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:02:48,372 INFO L93 Difference]: Finished difference Result 5176 states and 5794 transitions. [2020-10-12 14:02:48,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 14:02:48,376 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 762 [2020-10-12 14:02:48,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:02:48,384 INFO L225 Difference]: With dead ends: 5176 [2020-10-12 14:02:48,384 INFO L226 Difference]: Without dead ends: 2710 [2020-10-12 14:02:48,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=246, Invalid=624, Unknown=0, NotChecked=0, Total=870 [2020-10-12 14:02:48,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2710 states. [2020-10-12 14:02:48,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2710 to 2704. [2020-10-12 14:02:48,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2704 states. [2020-10-12 14:02:48,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2704 states to 2704 states and 3008 transitions. [2020-10-12 14:02:48,436 INFO L78 Accepts]: Start accepts. Automaton has 2704 states and 3008 transitions. Word has length 762 [2020-10-12 14:02:48,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:02:48,436 INFO L479 AbstractCegarLoop]: Abstraction has 2704 states and 3008 transitions. [2020-10-12 14:02:48,436 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:02:48,437 INFO L276 IsEmpty]: Start isEmpty. Operand 2704 states and 3008 transitions. [2020-10-12 14:02:48,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2020-10-12 14:02:48,448 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:02:48,449 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:02:48,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 14:02:48,450 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:02:48,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:02:48,450 INFO L82 PathProgramCache]: Analyzing trace with hash -2082806854, now seen corresponding path program 1 times [2020-10-12 14:02:48,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:02:48,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [20001416] [2020-10-12 14:02:48,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:02:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:48,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:48,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:49,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:53,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:53,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 805 [2020-10-12 14:02:53,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:02:53,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-10-12 14:02:53,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:53,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:02:53,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-12 14:02:53,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-12 14:02:53,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:53,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:02:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:53,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:53,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:53,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:02:53,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:53,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:02:53,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:53,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:53,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:53,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:53,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:53,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:02:53,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:53,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:53,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:53,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:53,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:53,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:02:53,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:53,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:53,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:53,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:53,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:53,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:02:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:53,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:53,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:53,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:02:53,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:53,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:02:53,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:53,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:53,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:53,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:53,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:53,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:02:53,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:53,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:53,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:53,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:02:53,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:53,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:02:53,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:53,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:53,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:53,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:53,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:53,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:02:53,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:53,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:54,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:54,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 14:02:54,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:54,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-12 14:02:54,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:54,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:02:54,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:54,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-12 14:02:54,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:54,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-12 14:02:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:54,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:54,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:54,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:54,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:02:54,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:02:54,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 440 [2020-10-12 14:02:54,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:54,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:02:54,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:02:54,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:02:54,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:55,110 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2020-10-12 14:02:55,317 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2020-10-12 14:02:55,544 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2020-10-12 14:02:55,778 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2020-10-12 14:02:56,042 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2020-10-12 14:02:56,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 682 [2020-10-12 14:02:56,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:56,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:56,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:56,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 14:02:56,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:56,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:02:56,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:56,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:56,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-12 14:02:56,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:56,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:58,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1697 backedges. 622 proven. 85 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2020-10-12 14:02:58,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [20001416] [2020-10-12 14:02:58,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:02:58,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:02:58,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440207693] [2020-10-12 14:02:58,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:02:58,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:02:58,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:02:58,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:02:58,782 INFO L87 Difference]: Start difference. First operand 2704 states and 3008 transitions. Second operand 13 states. [2020-10-12 14:02:59,565 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 57 [2020-10-12 14:03:00,158 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 61 [2020-10-12 14:03:00,461 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 69 [2020-10-12 14:03:00,770 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 73 [2020-10-12 14:03:01,161 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 76 [2020-10-12 14:03:01,490 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 83 [2020-10-12 14:03:01,819 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 54 [2020-10-12 14:03:02,657 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 46 [2020-10-12 14:03:03,285 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 49 [2020-10-12 14:03:03,575 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 52 [2020-10-12 14:03:03,866 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 56 [2020-10-12 14:03:04,258 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 59 [2020-10-12 14:03:04,580 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 61 [2020-10-12 14:03:05,064 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2020-10-12 14:03:05,684 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 89 [2020-10-12 14:03:05,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:03:05,869 INFO L93 Difference]: Finished difference Result 5410 states and 6044 transitions. [2020-10-12 14:03:05,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 14:03:05,870 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 785 [2020-10-12 14:03:05,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:03:05,877 INFO L225 Difference]: With dead ends: 5410 [2020-10-12 14:03:05,877 INFO L226 Difference]: Without dead ends: 2885 [2020-10-12 14:03:05,882 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=260, Invalid=670, Unknown=0, NotChecked=0, Total=930 [2020-10-12 14:03:05,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2885 states. [2020-10-12 14:03:05,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2885 to 2875. [2020-10-12 14:03:05,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2875 states. [2020-10-12 14:03:05,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 3180 transitions. [2020-10-12 14:03:05,927 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 3180 transitions. Word has length 785 [2020-10-12 14:03:05,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:03:05,928 INFO L479 AbstractCegarLoop]: Abstraction has 2875 states and 3180 transitions. [2020-10-12 14:03:05,928 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:03:05,929 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 3180 transitions. [2020-10-12 14:03:05,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 961 [2020-10-12 14:03:05,940 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:03:05,940 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:03:05,941 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 14:03:05,941 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:03:05,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:03:05,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1912738501, now seen corresponding path program 1 times [2020-10-12 14:03:05,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:03:05,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1385812659] [2020-10-12 14:03:05,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:03:06,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:06,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:06,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:10,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:10,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 984 [2020-10-12 14:03:10,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:03:10,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3927 [2020-10-12 14:03:10,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:10,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 14:03:10,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-12 14:03:10,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 270 [2020-10-12 14:03:10,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:10,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:03:10,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:10,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:10,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:10,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:03:10,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:10,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:03:10,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:10,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:10,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:10,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:10,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:10,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:03:10,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:10,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:10,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:10,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:03:10,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:10,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:03:10,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:10,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:10,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:10,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:10,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:10,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:03:10,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:10,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:10,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:10,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:03:10,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:10,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:03:10,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:10,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:10,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:10,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:10,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:10,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:03:10,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:10,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:10,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:10,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:03:10,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:10,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 14:03:10,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:10,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:10,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:10,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:10,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:10,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:03:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:10,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:10,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:10,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:03:10,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:10,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:03:10,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:10,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:10,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:10,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:10,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:03:10,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:03:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:10,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:10,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:10,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:03:10,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:10,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 14:03:10,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:10,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:10,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:10,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:10,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:03:10,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:03:10,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:10,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:10,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:10,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:03:10,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:10,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 14:03:10,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:10,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:03:10,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:10,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 14:03:10,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:10,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:03:10,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:10,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:10,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:10,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:03:10,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:10,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-10-12 14:03:10,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:10,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 14:03:10,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:10,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:03:10,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:11,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:03:11,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:11,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:11,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:11,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 14:03:11,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:11,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-12 14:03:11,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:11,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:11,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:11,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 14:03:11,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:11,616 INFO L134 CoverageAnalysis]: Checked inductivity of 2769 backedges. 1318 proven. 6 refuted. 0 times theorem prover too weak. 1445 trivial. 0 not checked. [2020-10-12 14:03:11,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1385812659] [2020-10-12 14:03:11,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:03:11,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 14:03:11,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240056230] [2020-10-12 14:03:11,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 14:03:11,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:03:11,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 14:03:11,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-12 14:03:11,620 INFO L87 Difference]: Start difference. First operand 2875 states and 3180 transitions. Second operand 9 states. [2020-10-12 14:03:14,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:03:14,212 INFO L93 Difference]: Finished difference Result 6629 states and 7628 transitions. [2020-10-12 14:03:14,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 14:03:14,213 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 960 [2020-10-12 14:03:14,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:03:14,225 INFO L225 Difference]: With dead ends: 6629 [2020-10-12 14:03:14,225 INFO L226 Difference]: Without dead ends: 3944 [2020-10-12 14:03:14,231 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2020-10-12 14:03:14,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3944 states. [2020-10-12 14:03:14,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3944 to 3813. [2020-10-12 14:03:14,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3813 states. [2020-10-12 14:03:14,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3813 states to 3813 states and 4417 transitions. [2020-10-12 14:03:14,298 INFO L78 Accepts]: Start accepts. Automaton has 3813 states and 4417 transitions. Word has length 960 [2020-10-12 14:03:14,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:03:14,299 INFO L479 AbstractCegarLoop]: Abstraction has 3813 states and 4417 transitions. [2020-10-12 14:03:14,299 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 14:03:14,299 INFO L276 IsEmpty]: Start isEmpty. Operand 3813 states and 4417 transitions. [2020-10-12 14:03:14,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 970 [2020-10-12 14:03:14,311 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:03:14,311 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:03:14,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 14:03:14,312 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:03:14,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:03:14,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1687944170, now seen corresponding path program 1 times [2020-10-12 14:03:14,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:03:14,313 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2044903508] [2020-10-12 14:03:14,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:03:14,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:14,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:14,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:16,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:17,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:17,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 993 [2020-10-12 14:03:17,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:03:17,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3514 [2020-10-12 14:03:17,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:17,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:17,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-12 14:03:17,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-12 14:03:17,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:18,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:03:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:18,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:18,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:18,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:03:18,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:18,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:03:18,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:18,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:18,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:18,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:18,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:18,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:03:18,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:18,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:18,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:18,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:03:18,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:18,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:03:18,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:18,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:18,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:18,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:18,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:18,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:03:18,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:18,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:18,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:18,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:03:18,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:18,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:03:18,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:18,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:18,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:18,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:18,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:03:18,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:03:18,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:18,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:18,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:18,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:03:18,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:18,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:03:18,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:18,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:18,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:18,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:18,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:18,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:03:18,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:18,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:18,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:18,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:03:18,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:18,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:03:18,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:18,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:18,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:18,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:18,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:18,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:03:18,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:18,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:18,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:18,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:03:18,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:18,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 14:03:18,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:18,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:18,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:18,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:18,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:18,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:03:18,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:18,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:18,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:18,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:03:18,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:18,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:03:18,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:18,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:18,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:18,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:18,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:18,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:03:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:18,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:18,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:18,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:03:18,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:18,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-12 14:03:18,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:18,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:03:18,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:18,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-12 14:03:18,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:18,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:03:18,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:18,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:18,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:18,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 14:03:18,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:18,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-12 14:03:18,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:18,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:18,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:18,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-12 14:03:18,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:19,026 INFO L134 CoverageAnalysis]: Checked inductivity of 2814 backedges. 785 proven. 2 refuted. 0 times theorem prover too weak. 2027 trivial. 0 not checked. [2020-10-12 14:03:19,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2044903508] [2020-10-12 14:03:19,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:03:19,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:03:19,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679909461] [2020-10-12 14:03:19,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:03:19,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:03:19,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:03:19,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:03:19,029 INFO L87 Difference]: Start difference. First operand 3813 states and 4417 transitions. Second operand 7 states. [2020-10-12 14:03:20,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:03:20,557 INFO L93 Difference]: Finished difference Result 8728 states and 10337 transitions. [2020-10-12 14:03:20,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:03:20,563 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 969 [2020-10-12 14:03:20,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:03:20,576 INFO L225 Difference]: With dead ends: 8728 [2020-10-12 14:03:20,576 INFO L226 Difference]: Without dead ends: 4737 [2020-10-12 14:03:20,584 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:03:20,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4737 states. [2020-10-12 14:03:20,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4737 to 4735. [2020-10-12 14:03:20,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4735 states. [2020-10-12 14:03:20,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4735 states to 4735 states and 5461 transitions. [2020-10-12 14:03:20,662 INFO L78 Accepts]: Start accepts. Automaton has 4735 states and 5461 transitions. Word has length 969 [2020-10-12 14:03:20,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:03:20,663 INFO L479 AbstractCegarLoop]: Abstraction has 4735 states and 5461 transitions. [2020-10-12 14:03:20,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:03:20,663 INFO L276 IsEmpty]: Start isEmpty. Operand 4735 states and 5461 transitions. [2020-10-12 14:03:20,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1088 [2020-10-12 14:03:20,682 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:03:20,683 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:03:20,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 14:03:20,683 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:03:20,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:03:20,684 INFO L82 PathProgramCache]: Analyzing trace with hash -468830726, now seen corresponding path program 1 times [2020-10-12 14:03:20,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:03:20,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [972136483] [2020-10-12 14:03:20,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:03:20,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:21,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:21,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:21,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:23,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:25,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:25,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1113 [2020-10-12 14:03:25,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:03:25,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 14:03:25,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:25,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 14:03:25,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-12 14:03:25,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 399 [2020-10-12 14:03:25,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:26,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:03:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:26,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:26,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:26,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:03:26,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:26,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:03:26,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:26,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:26,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:26,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:26,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:26,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:03:26,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:26,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:26,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:26,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:03:26,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:26,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:03:26,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:26,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:26,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:26,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:26,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:26,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:03:26,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:26,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:26,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:26,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:03:26,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:26,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:03:26,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:26,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:26,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:26,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:26,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:26,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:03:26,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:26,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:26,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:26,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:03:26,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:26,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:03:26,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:26,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:26,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:26,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:26,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:26,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:03:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:26,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:26,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:26,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:03:26,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:26,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:03:26,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:26,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:26,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:26,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:26,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:26,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:03:26,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:26,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:26,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:26,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:03:26,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:26,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:03:26,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:26,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:26,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:26,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:26,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:26,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:03:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:26,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:26,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:26,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:03:26,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:26,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:03:26,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:26,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:03:26,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:26,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 14:03:26,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:26,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:03:26,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:26,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:26,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:26,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:03:26,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:26,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-12 14:03:26,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:26,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 14:03:26,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:26,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:03:26,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:26,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:03:26,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:26,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:26,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:26,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:03:26,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:26,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-12 14:03:26,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:26,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:26,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:26,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-12 14:03:26,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:26,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:03:26,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:26,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:26,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:26,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 14:03:26,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:26,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 14:03:26,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:26,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:26,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:26,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-12 14:03:26,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:28,049 INFO L134 CoverageAnalysis]: Checked inductivity of 3656 backedges. 1979 proven. 299 refuted. 0 times theorem prover too weak. 1378 trivial. 0 not checked. [2020-10-12 14:03:28,049 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [972136483] [2020-10-12 14:03:28,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:03:28,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 14:03:28,050 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895121930] [2020-10-12 14:03:28,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 14:03:28,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:03:28,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 14:03:28,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:03:28,051 INFO L87 Difference]: Start difference. First operand 4735 states and 5461 transitions. Second operand 11 states. [2020-10-12 14:03:31,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:03:31,043 INFO L93 Difference]: Finished difference Result 9292 states and 10771 transitions. [2020-10-12 14:03:31,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 14:03:31,048 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1087 [2020-10-12 14:03:31,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:03:31,062 INFO L225 Difference]: With dead ends: 9292 [2020-10-12 14:03:31,062 INFO L226 Difference]: Without dead ends: 4747 [2020-10-12 14:03:31,070 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=151, Invalid=401, Unknown=0, NotChecked=0, Total=552 [2020-10-12 14:03:31,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4747 states. [2020-10-12 14:03:31,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4747 to 4551. [2020-10-12 14:03:31,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4551 states. [2020-10-12 14:03:31,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4551 states to 4551 states and 5257 transitions. [2020-10-12 14:03:31,150 INFO L78 Accepts]: Start accepts. Automaton has 4551 states and 5257 transitions. Word has length 1087 [2020-10-12 14:03:31,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:03:31,151 INFO L479 AbstractCegarLoop]: Abstraction has 4551 states and 5257 transitions. [2020-10-12 14:03:31,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 14:03:31,151 INFO L276 IsEmpty]: Start isEmpty. Operand 4551 states and 5257 transitions. [2020-10-12 14:03:31,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1101 [2020-10-12 14:03:31,170 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:03:31,171 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:03:31,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 14:03:31,171 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:03:31,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:03:31,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1945888787, now seen corresponding path program 1 times [2020-10-12 14:03:31,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:03:31,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1487563219] [2020-10-12 14:03:31,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:03:31,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:31,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:31,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:34,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:34,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:36,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:36,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1126 [2020-10-12 14:03:36,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:03:36,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5077 [2020-10-12 14:03:36,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:36,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 14:03:36,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-12 14:03:36,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 306 [2020-10-12 14:03:36,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:36,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:03:36,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:36,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:36,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:36,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:03:36,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:36,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:03:36,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:36,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:36,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:36,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:36,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:36,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:03:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:36,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:36,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:36,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:03:36,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:36,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:36,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:36,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:36,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:36,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:36,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:36,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:03:36,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:36,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:36,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:36,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:03:36,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:36,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:36,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:36,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:36,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:36,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:36,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:36,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:03:36,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:36,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:36,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:36,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:03:36,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:36,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:03:36,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:36,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:36,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:36,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:36,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:36,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:03:36,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:36,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:36,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:36,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:03:36,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:36,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:36,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:36,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:36,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:36,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:36,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:36,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:03:36,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:36,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:36,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:36,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:03:36,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:36,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:03:36,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:36,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:36,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:36,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:36,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:36,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:03:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:36,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:36,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:36,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:03:36,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:36,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:03:36,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:36,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:03:36,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:36,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 14:03:36,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:36,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:03:36,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:36,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:37,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:37,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:03:37,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:37,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-12 14:03:37,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:37,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 14:03:37,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:37,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:03:37,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:37,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:03:37,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:37,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:37,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:37,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:37,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:03:37,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:03:37,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-10-12 14:03:37,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:37,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:03:37,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:37,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-12 14:03:37,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:37,862 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2020-10-12 14:03:38,055 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 51 [2020-10-12 14:03:38,264 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 54 [2020-10-12 14:03:38,467 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2020-10-12 14:03:38,695 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2020-10-12 14:03:38,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 997 [2020-10-12 14:03:38,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:38,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:38,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:38,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 14:03:38,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:38,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 14:03:38,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:38,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:38,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-12 14:03:38,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:38,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:40,791 INFO L134 CoverageAnalysis]: Checked inductivity of 3646 backedges. 1559 proven. 240 refuted. 0 times theorem prover too weak. 1847 trivial. 0 not checked. [2020-10-12 14:03:40,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1487563219] [2020-10-12 14:03:40,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:03:40,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-12 14:03:40,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681085485] [2020-10-12 14:03:40,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 14:03:40,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:03:40,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 14:03:40,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2020-10-12 14:03:40,793 INFO L87 Difference]: Start difference. First operand 4551 states and 5257 transitions. Second operand 16 states. [2020-10-12 14:03:41,606 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2020-10-12 14:03:41,809 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2020-10-12 14:03:42,164 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-10-12 14:03:42,418 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-10-12 14:03:42,780 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2020-10-12 14:03:43,038 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 84 [2020-10-12 14:03:43,618 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2020-10-12 14:03:44,024 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2020-10-12 14:03:44,203 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2020-10-12 14:03:44,440 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2020-10-12 14:03:44,658 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2020-10-12 14:03:44,903 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2020-10-12 14:03:45,143 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2020-10-12 14:03:46,311 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 59 [2020-10-12 14:03:46,546 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2020-10-12 14:03:46,935 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 60 [2020-10-12 14:03:47,223 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 60 [2020-10-12 14:03:47,532 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 64 [2020-10-12 14:03:47,835 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 68 [2020-10-12 14:03:48,729 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2020-10-12 14:03:49,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:03:49,090 INFO L93 Difference]: Finished difference Result 9112 states and 10561 transitions. [2020-10-12 14:03:49,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-12 14:03:49,093 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 1100 [2020-10-12 14:03:49,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:03:49,105 INFO L225 Difference]: With dead ends: 9112 [2020-10-12 14:03:49,105 INFO L226 Difference]: Without dead ends: 4685 [2020-10-12 14:03:49,115 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 490 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=514, Invalid=1556, Unknown=0, NotChecked=0, Total=2070 [2020-10-12 14:03:49,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4685 states. [2020-10-12 14:03:49,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4685 to 4669. [2020-10-12 14:03:49,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4669 states. [2020-10-12 14:03:49,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4669 states to 4669 states and 5376 transitions. [2020-10-12 14:03:49,207 INFO L78 Accepts]: Start accepts. Automaton has 4669 states and 5376 transitions. Word has length 1100 [2020-10-12 14:03:49,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:03:49,208 INFO L479 AbstractCegarLoop]: Abstraction has 4669 states and 5376 transitions. [2020-10-12 14:03:49,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 14:03:49,209 INFO L276 IsEmpty]: Start isEmpty. Operand 4669 states and 5376 transitions. [2020-10-12 14:03:49,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1219 [2020-10-12 14:03:49,228 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:03:49,228 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:03:49,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 14:03:49,229 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:03:49,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:03:49,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1712182391, now seen corresponding path program 1 times [2020-10-12 14:03:49,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:03:49,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1592768347] [2020-10-12 14:03:49,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:03:49,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:49,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:50,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:53,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:53,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1246 [2020-10-12 14:03:53,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:03:53,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3746 [2020-10-12 14:03:53,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:53,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:53,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-12 14:03:53,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-12 14:03:53,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:53,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:03:53,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:53,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:53,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:53,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:03:53,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:53,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:03:53,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:53,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:53,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:53,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:53,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:53,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:03:53,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:53,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:53,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:53,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:03:53,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:53,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:03:53,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:53,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:53,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:53,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:53,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:53,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:03:53,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:53,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:53,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:53,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:03:53,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:53,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:03:53,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:53,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:53,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:53,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:53,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:53,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:03:53,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:53,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:53,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:53,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:03:53,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:53,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:03:53,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:53,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:53,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:53,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:53,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:53,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:03:53,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:53,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:53,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:53,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:03:53,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:53,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:03:53,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:53,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:53,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:53,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:53,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:53,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:03:53,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:53,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:53,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:53,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:03:53,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:53,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 14:03:53,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:53,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:53,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:53,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:53,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:53,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:03:53,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:53,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:53,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:53,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:03:53,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:53,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:03:53,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:53,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:53,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:53,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:53,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:03:53,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:03:53,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:53,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:53,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:53,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:03:53,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:53,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-12 14:03:53,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:53,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:53,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:53,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:53,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:03:53,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:03:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:53,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:53,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:53,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:03:53,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:53,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 14:03:53,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:53,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:53,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:53,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:53,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:03:53,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:03:54,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:54,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:54,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:54,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:03:54,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:54,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-12 14:03:54,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:54,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:03:54,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:54,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-12 14:03:54,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:03:54,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:03:54,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:54,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:54,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:54,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 14:03:54,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:54,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-12 14:03:54,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:54,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:54,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:54,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 14:03:54,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:55,036 INFO L134 CoverageAnalysis]: Checked inductivity of 4597 backedges. 952 proven. 2 refuted. 0 times theorem prover too weak. 3643 trivial. 0 not checked. [2020-10-12 14:03:55,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1592768347] [2020-10-12 14:03:55,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:03:55,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:03:55,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391861973] [2020-10-12 14:03:55,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:03:55,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:03:55,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:03:55,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:03:55,039 INFO L87 Difference]: Start difference. First operand 4669 states and 5376 transitions. Second operand 7 states. [2020-10-12 14:03:56,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:03:56,548 INFO L93 Difference]: Finished difference Result 10234 states and 11877 transitions. [2020-10-12 14:03:56,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:03:56,549 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1218 [2020-10-12 14:03:56,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:03:56,566 INFO L225 Difference]: With dead ends: 10234 [2020-10-12 14:03:56,567 INFO L226 Difference]: Without dead ends: 5755 [2020-10-12 14:03:56,575 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:03:56,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5755 states. [2020-10-12 14:03:56,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5755 to 5302. [2020-10-12 14:03:56,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5302 states. [2020-10-12 14:03:56,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 6082 transitions. [2020-10-12 14:03:56,669 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 6082 transitions. Word has length 1218 [2020-10-12 14:03:56,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:03:56,670 INFO L479 AbstractCegarLoop]: Abstraction has 5302 states and 6082 transitions. [2020-10-12 14:03:56,670 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:03:56,670 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 6082 transitions. [2020-10-12 14:03:56,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1346 [2020-10-12 14:03:56,690 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:03:56,691 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:03:56,692 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-12 14:03:56,692 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:03:56,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:03:56,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1668166838, now seen corresponding path program 1 times [2020-10-12 14:03:56,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:03:56,693 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1869545110] [2020-10-12 14:03:56,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:03:56,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:57,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:58,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:58,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:00,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:01,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:01,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:01,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1375 [2020-10-12 14:04:01,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:04:01,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-10-12 14:04:01,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:01,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:04:01,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-12 14:04:01,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-12 14:04:01,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:02,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:04:02,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:02,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:02,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:02,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:04:02,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:02,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:04:02,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:02,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:02,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:02,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:02,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:02,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:04:02,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:02,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:02,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:02,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:04:02,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:02,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:04:02,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:02,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:02,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:02,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:02,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:02,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:04:02,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:02,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:02,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:02,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:04:02,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:02,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:04:02,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:02,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:02,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:02,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:02,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:02,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:04:02,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:02,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:02,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:02,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:04:02,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:02,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:04:02,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:02,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:02,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:02,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:02,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:02,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:04:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:02,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:02,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:02,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:04:02,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:02,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 14:04:02,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:02,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:02,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:02,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:02,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:02,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:04:02,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:02,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:02,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:02,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:04:02,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:02,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:04:02,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:02,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:02,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:02,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:02,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:02,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:04:02,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:02,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:02,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:02,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:04:02,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:02,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:04:02,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:02,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:02,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:02,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:02,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:02,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:04:02,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:02,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:02,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:02,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:04:02,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:02,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:04:02,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:02,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:02,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:02,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:02,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:02,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:04:02,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:02,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:02,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:02,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:04:02,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:02,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:04:02,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:02,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:02,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:02,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:02,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:02,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:04:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:02,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:02,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:02,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:04:02,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:02,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-12 14:04:02,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:02,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:04:02,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:02,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-12 14:04:02,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:02,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:04:02,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:02,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:02,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:02,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:02,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:04:02,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:04:02,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-12 14:04:02,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:02,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:04:02,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:04:02,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-12 14:04:02,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:02,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1233 [2020-10-12 14:04:02,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:02,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:02,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:02,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 14:04:02,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:02,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-12 14:04:02,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:02,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:04:02,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:04:02,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-12 14:04:02,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:03,643 INFO L134 CoverageAnalysis]: Checked inductivity of 5738 backedges. 1987 proven. 6 refuted. 0 times theorem prover too weak. 3745 trivial. 0 not checked. [2020-10-12 14:04:03,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1869545110] [2020-10-12 14:04:03,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:04:03,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:04:03,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510437950] [2020-10-12 14:04:03,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:04:03,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:04:03,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:04:03,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:04:03,645 INFO L87 Difference]: Start difference. First operand 5302 states and 6082 transitions. Second operand 7 states. [2020-10-12 14:04:05,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:04:05,744 INFO L93 Difference]: Finished difference Result 11239 states and 12882 transitions. [2020-10-12 14:04:05,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:04:05,746 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1345 [2020-10-12 14:04:05,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:04:05,767 INFO L225 Difference]: With dead ends: 11239 [2020-10-12 14:04:05,767 INFO L226 Difference]: Without dead ends: 5943 [2020-10-12 14:04:05,777 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:04:05,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5943 states. [2020-10-12 14:04:05,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5943 to 5567. [2020-10-12 14:04:05,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5567 states. [2020-10-12 14:04:05,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5567 states to 5567 states and 6343 transitions. [2020-10-12 14:04:05,875 INFO L78 Accepts]: Start accepts. Automaton has 5567 states and 6343 transitions. Word has length 1345 [2020-10-12 14:04:05,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:04:05,878 INFO L479 AbstractCegarLoop]: Abstraction has 5567 states and 6343 transitions. [2020-10-12 14:04:05,879 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:04:05,879 INFO L276 IsEmpty]: Start isEmpty. Operand 5567 states and 6343 transitions. [2020-10-12 14:04:05,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1426 [2020-10-12 14:04:05,900 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:04:05,901 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:04:05,901 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-12 14:04:05,901 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:04:05,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:04:05,902 INFO L82 PathProgramCache]: Analyzing trace with hash -207418538, now seen corresponding path program 1 times [2020-10-12 14:04:05,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:04:05,902 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [632085645] [2020-10-12 14:04:05,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:04:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:06,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:07,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:07,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1455 [2020-10-12 14:04:07,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:07,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1245 [2020-10-12 14:04:07,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:07,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:04:07,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1430 [2020-10-12 14:04:07,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 14:04:07,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:07,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:04:07,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:07,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:07,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:07,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:04:07,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:07,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:04:07,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:07,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:07,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:07,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:07,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:07,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:04:07,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:07,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:07,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:07,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:04:07,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:07,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:04:07,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:07,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:07,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:07,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:07,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:07,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:04:07,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:07,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:07,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:07,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:04:07,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:07,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:04:07,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:07,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:07,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:07,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:07,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:07,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:04:07,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:07,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:07,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:07,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:04:07,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:07,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:04:07,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:07,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:07,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:07,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:07,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:07,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:04:07,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:07,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking...