/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/Problem01_label30.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 11:07:01,154 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 11:07:01,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 11:07:01,184 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 11:07:01,185 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 11:07:01,186 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 11:07:01,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 11:07:01,194 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 11:07:01,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 11:07:01,199 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 11:07:01,201 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 11:07:01,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 11:07:01,202 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 11:07:01,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 11:07:01,205 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 11:07:01,208 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 11:07:01,209 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 11:07:01,212 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 11:07:01,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 11:07:01,216 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 11:07:01,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 11:07:01,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 11:07:01,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 11:07:01,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 11:07:01,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 11:07:01,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 11:07:01,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 11:07:01,232 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 11:07:01,233 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 11:07:01,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 11:07:01,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 11:07:01,243 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 11:07:01,244 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 11:07:01,247 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 11:07:01,249 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 11:07:01,249 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 11:07:01,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 11:07:01,253 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 11:07:01,253 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 11:07:01,254 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 11:07:01,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 11:07:01,256 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 11:07:01,296 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 11:07:01,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 11:07:01,298 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 11:07:01,299 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 11:07:01,299 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 11:07:01,299 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 11:07:01,299 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 11:07:01,300 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 11:07:01,300 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 11:07:01,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 11:07:01,301 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 11:07:01,301 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 11:07:01,301 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 11:07:01,302 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 11:07:01,302 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 11:07:01,302 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 11:07:01,302 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 11:07:01,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 11:07:01,303 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 11:07:01,303 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 11:07:01,303 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 11:07:01,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 11:07:01,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 11:07:01,304 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 11:07:01,304 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 11:07:01,304 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 11:07:01,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 11:07:01,304 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 11:07:01,305 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 11:07:01,305 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 11:07:01,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 11:07:01,603 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 11:07:01,610 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 11:07:01,613 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 11:07:01,613 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 11:07:01,614 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label30.c [2020-10-12 11:07:01,678 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8625deea9/f686bc19faed431cbf57550d585d607a/FLAG2de911ae9 [2020-10-12 11:07:02,211 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 11:07:02,212 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label30.c [2020-10-12 11:07:02,223 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8625deea9/f686bc19faed431cbf57550d585d607a/FLAG2de911ae9 [2020-10-12 11:07:02,548 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8625deea9/f686bc19faed431cbf57550d585d607a [2020-10-12 11:07:02,556 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 11:07:02,557 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 11:07:02,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 11:07:02,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 11:07:02,562 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 11:07:02,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:07:02" (1/1) ... [2020-10-12 11:07:02,565 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ef00bf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:07:02, skipping insertion in model container [2020-10-12 11:07:02,565 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:07:02" (1/1) ... [2020-10-12 11:07:02,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 11:07:02,626 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 11:07:03,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 11:07:03,120 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 11:07:03,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 11:07:03,307 INFO L208 MainTranslator]: Completed translation [2020-10-12 11:07:03,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:07:03 WrapperNode [2020-10-12 11:07:03,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 11:07:03,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 11:07:03,310 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 11:07:03,310 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 11:07:03,328 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:07:03" (1/1) ... [2020-10-12 11:07:03,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:07:03" (1/1) ... [2020-10-12 11:07:03,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:07:03" (1/1) ... [2020-10-12 11:07:03,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:07:03" (1/1) ... [2020-10-12 11:07:03,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:07:03" (1/1) ... [2020-10-12 11:07:03,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:07:03" (1/1) ... [2020-10-12 11:07:03,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:07:03" (1/1) ... [2020-10-12 11:07:03,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 11:07:03,441 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 11:07:03,441 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 11:07:03,442 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 11:07:03,442 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:07:03" (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 11:07:03,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 11:07:03,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 11:07:03,507 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 11:07:03,507 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 11:07:03,507 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 11:07:03,507 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 11:07:03,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 11:07:03,508 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 11:07:03,508 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 11:07:03,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 11:07:03,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 11:07:04,597 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 11:07:04,598 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 11:07:04,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:07:04 BoogieIcfgContainer [2020-10-12 11:07:04,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 11:07:04,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 11:07:04,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 11:07:04,608 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 11:07:04,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 11:07:02" (1/3) ... [2020-10-12 11:07:04,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30af35da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:07:04, skipping insertion in model container [2020-10-12 11:07:04,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:07:03" (2/3) ... [2020-10-12 11:07:04,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30af35da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:07:04, skipping insertion in model container [2020-10-12 11:07:04,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:07:04" (3/3) ... [2020-10-12 11:07:04,612 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label30.c [2020-10-12 11:07:04,625 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 11:07:04,633 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 11:07:04,649 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 11:07:04,677 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 11:07:04,678 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 11:07:04,678 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 11:07:04,678 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 11:07:04,679 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 11:07:04,679 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 11:07:04,679 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 11:07:04,680 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 11:07:04,703 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-12 11:07:04,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-12 11:07:04,717 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:07:04,718 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:07:04,719 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:07:04,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:07:04,725 INFO L82 PathProgramCache]: Analyzing trace with hash -152148385, now seen corresponding path program 1 times [2020-10-12 11:07:04,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:07:04,734 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1954217191] [2020-10-12 11:07:04,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:07:04,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:05,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:05,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:06,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:06,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-12 11:07:06,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:07:06,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1466 [2020-10-12 11:07:06,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:06,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 11:07:06,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:07:06,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-12 11:07:06,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 11:07:07,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:07:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:07,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:07,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:07,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:07:07,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:07,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 11:07:07,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:07,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:07:07,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:07,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:07:07,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:07,272 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 11:07:07,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1954217191] [2020-10-12 11:07:07,275 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 11:07:07,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 11:07:07,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215387661] [2020-10-12 11:07:07,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:07:07,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:07:07,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:07:07,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:07:07,299 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 13 states. [2020-10-12 11:07:07,493 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-10-12 11:07:07,888 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2020-10-12 11:07:08,216 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2020-10-12 11:07:08,492 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 92 [2020-10-12 11:07:08,749 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 91 [2020-10-12 11:07:09,067 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2020-10-12 11:07:09,468 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 89 [2020-10-12 11:07:09,953 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-10-12 11:07:10,331 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 86 [2020-10-12 11:07:11,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:07:11,382 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-12 11:07:11,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 11:07:11,391 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 131 [2020-10-12 11:07:11,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:07:11,415 INFO L225 Difference]: With dead ends: 474 [2020-10-12 11:07:11,416 INFO L226 Difference]: Without dead ends: 205 [2020-10-12 11:07:11,431 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=140, Invalid=322, Unknown=0, NotChecked=0, Total=462 [2020-10-12 11:07:11,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-12 11:07:11,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-12 11:07:11,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-12 11:07:11,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-12 11:07:11,530 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 131 [2020-10-12 11:07:11,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:07:11,531 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-12 11:07:11,531 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:07:11,531 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-12 11:07:11,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-12 11:07:11,544 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:07:11,545 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:07:11,545 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 11:07:11,545 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:07:11,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:07:11,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1846050396, now seen corresponding path program 1 times [2020-10-12 11:07:11,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:07:11,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [380298660] [2020-10-12 11:07:11,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:07:11,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:11,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:11,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:12,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:13,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:13,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-12 11:07:13,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:07:13,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1749 [2020-10-12 11:07:13,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:13,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:07:13,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:07:13,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 11:07:13,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:07:13,994 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2020-10-12 11:07:14,216 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 52 [2020-10-12 11:07:14,421 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 49 [2020-10-12 11:07:14,633 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 45 [2020-10-12 11:07:14,819 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 41 [2020-10-12 11:07:14,988 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 35 [2020-10-12 11:07:15,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:07:15,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:15,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:15,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:15,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:07:15,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:15,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:07:15,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:15,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:15,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:15,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:15,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-12 11:07:15,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:07:15,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:15,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:15,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:15,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:07:15,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:15,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:07:15,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:15,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:07:15,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:15,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 11:07:15,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:07:15,392 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:07:15,393 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [380298660] [2020-10-12 11:07:15,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:07:15,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:07:15,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488895612] [2020-10-12 11:07:15,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:07:15,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:07:15,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:07:15,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:07:15,396 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 13 states. [2020-10-12 11:07:15,718 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-12 11:07:15,882 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 11:07:16,440 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 114 [2020-10-12 11:07:17,274 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 111 [2020-10-12 11:07:17,674 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 108 [2020-10-12 11:07:18,139 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 105 [2020-10-12 11:07:18,410 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 100 [2020-10-12 11:07:19,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:07:19,117 INFO L93 Difference]: Finished difference Result 433 states and 637 transitions. [2020-10-12 11:07:19,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 11:07:19,118 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 139 [2020-10-12 11:07:19,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:07:19,123 INFO L225 Difference]: With dead ends: 433 [2020-10-12 11:07:19,123 INFO L226 Difference]: Without dead ends: 294 [2020-10-12 11:07:19,125 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-10-12 11:07:19,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-12 11:07:19,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2020-10-12 11:07:19,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-12 11:07:19,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 355 transitions. [2020-10-12 11:07:19,146 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 355 transitions. Word has length 139 [2020-10-12 11:07:19,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:07:19,147 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 355 transitions. [2020-10-12 11:07:19,147 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:07:19,147 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 355 transitions. [2020-10-12 11:07:19,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-12 11:07:19,149 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:07:19,149 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:07:19,149 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 11:07:19,149 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:07:19,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:07:19,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1563736858, now seen corresponding path program 1 times [2020-10-12 11:07:19,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:07:19,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [228808924] [2020-10-12 11:07:19,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:07:19,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:19,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:19,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:19,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:19,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:19,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-12 11:07:19,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:07:19,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 752 [2020-10-12 11:07:19,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:19,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:07:19,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:07:19,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-12 11:07:19,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:20,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:07:20,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:20,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:20,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:20,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:07:20,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:20,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 11:07:20,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:20,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:07:20,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:20,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:07:20,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:20,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:07:20,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:20,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:20,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:20,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:20,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:07:20,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:07:20,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 11:07:20,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:20,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:07:20,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:07:20,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:07:20,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:20,124 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 11:07:20,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [228808924] [2020-10-12 11:07:20,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:07:20,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:07:20,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919163037] [2020-10-12 11:07:20,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 11:07:20,126 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:07:20,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 11:07:20,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:07:20,127 INFO L87 Difference]: Start difference. First operand 276 states and 355 transitions. Second operand 6 states. [2020-10-12 11:07:21,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:07:21,084 INFO L93 Difference]: Finished difference Result 627 states and 851 transitions. [2020-10-12 11:07:21,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 11:07:21,085 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2020-10-12 11:07:21,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:07:21,089 INFO L225 Difference]: With dead ends: 627 [2020-10-12 11:07:21,090 INFO L226 Difference]: Without dead ends: 417 [2020-10-12 11:07:21,091 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:07:21,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2020-10-12 11:07:21,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 415. [2020-10-12 11:07:21,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-10-12 11:07:21,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 540 transitions. [2020-10-12 11:07:21,122 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 540 transitions. Word has length 142 [2020-10-12 11:07:21,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:07:21,122 INFO L479 AbstractCegarLoop]: Abstraction has 415 states and 540 transitions. [2020-10-12 11:07:21,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 11:07:21,123 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 540 transitions. [2020-10-12 11:07:21,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-12 11:07:21,125 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:07:21,125 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:07:21,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 11:07:21,125 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:07:21,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:07:21,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1099982203, now seen corresponding path program 1 times [2020-10-12 11:07:21,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:07:21,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [999313960] [2020-10-12 11:07:21,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:07:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:21,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:21,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:21,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:23,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:25,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:25,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 11:07:25,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:07:25,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4404 [2020-10-12 11:07:25,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:25,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:07:25,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-12 11:07:25,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 11:07:25,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:26,026 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2020-10-12 11:07:26,258 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 47 [2020-10-12 11:07:26,542 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 50 [2020-10-12 11:07:26,818 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 46 [2020-10-12 11:07:27,093 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 42 [2020-10-12 11:07:27,274 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 38 [2020-10-12 11:07:27,429 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 34 [2020-10-12 11:07:27,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:07:27,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:27,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:27,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:27,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:07:27,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:27,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:07:27,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:27,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:27,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:27,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:27,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:27,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:07:27,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:27,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:27,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:27,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:07:27,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:27,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:07:27,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:27,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:27,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:27,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:27,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:27,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:07:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:27,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:27,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:27,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 11:07:27,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:27,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:07:27,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:27,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:07:27,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:27,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 11:07:27,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:27,686 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-12 11:07:27,687 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [999313960] [2020-10-12 11:07:27,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:07:27,687 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:07:27,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598294091] [2020-10-12 11:07:27,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:07:27,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:07:27,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:07:27,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:07:27,689 INFO L87 Difference]: Start difference. First operand 415 states and 540 transitions. Second operand 13 states. [2020-10-12 11:07:28,221 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 11:07:28,599 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 112 [2020-10-12 11:07:28,939 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 109 [2020-10-12 11:07:29,248 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 106 [2020-10-12 11:07:29,918 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 103 [2020-10-12 11:07:30,478 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 98 [2020-10-12 11:07:31,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:07:31,020 INFO L93 Difference]: Finished difference Result 843 states and 1161 transitions. [2020-10-12 11:07:31,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 11:07:31,021 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 151 [2020-10-12 11:07:31,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:07:31,025 INFO L225 Difference]: With dead ends: 843 [2020-10-12 11:07:31,026 INFO L226 Difference]: Without dead ends: 494 [2020-10-12 11:07:31,027 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-12 11:07:31,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2020-10-12 11:07:31,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 488. [2020-10-12 11:07:31,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2020-10-12 11:07:31,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 621 transitions. [2020-10-12 11:07:31,049 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 621 transitions. Word has length 151 [2020-10-12 11:07:31,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:07:31,049 INFO L479 AbstractCegarLoop]: Abstraction has 488 states and 621 transitions. [2020-10-12 11:07:31,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:07:31,050 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 621 transitions. [2020-10-12 11:07:31,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-12 11:07:31,052 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:07:31,052 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:07:31,053 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 11:07:31,053 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:07:31,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:07:31,053 INFO L82 PathProgramCache]: Analyzing trace with hash -906750653, now seen corresponding path program 1 times [2020-10-12 11:07:31,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:07:31,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1456553159] [2020-10-12 11:07:31,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:07:31,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:31,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:31,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:31,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:32,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:33,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:33,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:33,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-12 11:07:33,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:07:33,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2176 [2020-10-12 11:07:33,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:33,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:07:33,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:07:33,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 11:07:33,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:33,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:07:33,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:33,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:33,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:33,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:07:33,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:33,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:07:33,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:33,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:07:33,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:33,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:07:33,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:33,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:07:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:33,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:33,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:33,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:33,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:07:33,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:07:33,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 11:07:33,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:33,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:07:33,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:07:33,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:07:33,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:33,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:07:33,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:33,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:33,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:33,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:07:33,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:33,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 11:07:33,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:33,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:07:33,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:07:33,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 11:07:33,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:33,454 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 26 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 11:07:33,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1456553159] [2020-10-12 11:07:33,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:07:33,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:07:33,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761002561] [2020-10-12 11:07:33,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 11:07:33,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:07:33,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 11:07:33,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:07:33,457 INFO L87 Difference]: Start difference. First operand 488 states and 621 transitions. Second operand 8 states. [2020-10-12 11:07:34,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:07:34,723 INFO L93 Difference]: Finished difference Result 1208 states and 1622 transitions. [2020-10-12 11:07:34,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 11:07:34,724 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 162 [2020-10-12 11:07:34,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:07:34,730 INFO L225 Difference]: With dead ends: 1208 [2020-10-12 11:07:34,730 INFO L226 Difference]: Without dead ends: 786 [2020-10-12 11:07:34,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 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 11:07:34,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2020-10-12 11:07:34,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 768. [2020-10-12 11:07:34,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2020-10-12 11:07:34,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 990 transitions. [2020-10-12 11:07:34,766 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 990 transitions. Word has length 162 [2020-10-12 11:07:34,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:07:34,768 INFO L479 AbstractCegarLoop]: Abstraction has 768 states and 990 transitions. [2020-10-12 11:07:34,768 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 11:07:34,768 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 990 transitions. [2020-10-12 11:07:34,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-12 11:07:34,772 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:07:34,772 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:07:34,772 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 11:07:34,772 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:07:34,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:07:34,773 INFO L82 PathProgramCache]: Analyzing trace with hash 687264683, now seen corresponding path program 1 times [2020-10-12 11:07:34,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:07:34,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [907270830] [2020-10-12 11:07:34,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:07:34,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:34,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:34,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:35,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:37,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:38,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:39,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:39,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-12 11:07:39,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:07:39,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-12 11:07:39,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:39,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:07:39,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-12 11:07:39,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 11:07:39,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:40,361 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 42 [2020-10-12 11:07:40,501 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 40 [2020-10-12 11:07:40,641 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 38 [2020-10-12 11:07:40,789 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 36 [2020-10-12 11:07:40,929 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 33 [2020-10-12 11:07:40,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:07:40,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:40,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:40,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:40,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:07:40,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:40,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:07:40,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:40,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:40,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:40,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:40,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:41,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:07:41,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:41,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:41,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:41,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:07:41,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:41,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:07:41,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:41,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:41,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:41,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:41,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:41,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:07:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:41,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:41,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:41,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 11:07:41,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:41,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 11:07:41,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:41,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:07:41,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:41,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-12 11:07:41,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:41,160 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:07:41,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [907270830] [2020-10-12 11:07:41,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:07:41,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:07:41,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480980532] [2020-10-12 11:07:41,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:07:41,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:07:41,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:07:41,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:07:41,164 INFO L87 Difference]: Start difference. First operand 768 states and 990 transitions. Second operand 13 states. [2020-10-12 11:07:41,594 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-12 11:07:41,722 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-12 11:07:42,134 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-12 11:07:42,511 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2020-10-12 11:07:42,730 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 90 [2020-10-12 11:07:43,083 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2020-10-12 11:07:43,449 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2020-10-12 11:07:43,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:07:43,714 INFO L93 Difference]: Finished difference Result 1534 states and 2024 transitions. [2020-10-12 11:07:43,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 11:07:43,715 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 175 [2020-10-12 11:07:43,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:07:43,720 INFO L225 Difference]: With dead ends: 1534 [2020-10-12 11:07:43,720 INFO L226 Difference]: Without dead ends: 832 [2020-10-12 11:07:43,722 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:07:43,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2020-10-12 11:07:43,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 832. [2020-10-12 11:07:43,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 832 states. [2020-10-12 11:07:43,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1065 transitions. [2020-10-12 11:07:43,754 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1065 transitions. Word has length 175 [2020-10-12 11:07:43,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:07:43,754 INFO L479 AbstractCegarLoop]: Abstraction has 832 states and 1065 transitions. [2020-10-12 11:07:43,755 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:07:43,755 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1065 transitions. [2020-10-12 11:07:43,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-10-12 11:07:43,761 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:07:43,761 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:07:43,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 11:07:43,762 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:07:43,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:07:43,762 INFO L82 PathProgramCache]: Analyzing trace with hash 763924196, now seen corresponding path program 1 times [2020-10-12 11:07:43,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:07:43,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1865010472] [2020-10-12 11:07:43,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:07:43,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:43,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:43,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:43,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:46,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:46,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:46,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-12 11:07:46,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:07:46,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3161 [2020-10-12 11:07:46,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:46,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:07:46,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:07:46,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 11:07:46,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:47,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:07:47,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:47,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:47,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:47,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:07:47,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:47,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 11:07:47,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:47,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:07:47,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:47,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:07:47,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:47,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:07:47,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:47,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:47,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:47,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:47,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:07:47,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:07:47,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 11:07:47,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:47,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:07:47,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:07:47,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:07:47,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:47,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:07:47,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:47,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:47,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:47,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:07:47,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:47,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 11:07:47,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:47,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:07:47,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:07:47,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 11:07:47,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:47,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 11:07:47,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:47,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:47,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:47,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:07:47,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:47,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 11:07:47,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:47,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:47,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:07:47,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:47,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:07:47,221 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 42 proven. 18 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-12 11:07:47,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1865010472] [2020-10-12 11:07:47,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:07:47,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:07:47,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849880327] [2020-10-12 11:07:47,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:07:47,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:07:47,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:07:47,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:07:47,227 INFO L87 Difference]: Start difference. First operand 832 states and 1065 transitions. Second operand 7 states. [2020-10-12 11:07:48,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:07:48,511 INFO L93 Difference]: Finished difference Result 1612 states and 2085 transitions. [2020-10-12 11:07:48,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 11:07:48,511 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 177 [2020-10-12 11:07:48,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:07:48,517 INFO L225 Difference]: With dead ends: 1612 [2020-10-12 11:07:48,517 INFO L226 Difference]: Without dead ends: 846 [2020-10-12 11:07:48,519 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:07:48,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2020-10-12 11:07:48,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 840. [2020-10-12 11:07:48,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 840 states. [2020-10-12 11:07:48,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1069 transitions. [2020-10-12 11:07:48,558 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1069 transitions. Word has length 177 [2020-10-12 11:07:48,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:07:48,558 INFO L479 AbstractCegarLoop]: Abstraction has 840 states and 1069 transitions. [2020-10-12 11:07:48,558 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:07:48,559 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1069 transitions. [2020-10-12 11:07:48,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-12 11:07:48,562 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:07:48,562 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:07:48,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 11:07:48,563 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:07:48,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:07:48,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1021855543, now seen corresponding path program 1 times [2020-10-12 11:07:48,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:07:48,564 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1457954777] [2020-10-12 11:07:48,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:07:48,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:48,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:48,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:48,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:52,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:52,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:53,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:53,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-12 11:07:53,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:07:53,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4749 [2020-10-12 11:07:53,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:53,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:07:53,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-12 11:07:53,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 11:07:53,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:53,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:07:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:53,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:53,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:53,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:07:53,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:53,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:07:53,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:53,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:53,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:53,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:53,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:53,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:07:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:53,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:53,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:53,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:07:53,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:53,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:07:53,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:53,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:53,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:53,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:53,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:53,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:07:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:53,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:53,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:53,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 11:07:53,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:53,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 11:07:53,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:53,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:07:53,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:53,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 11:07:53,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:54,029 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:07:54,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1457954777] [2020-10-12 11:07:54,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:07:54,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:07:54,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960450217] [2020-10-12 11:07:54,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:07:54,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:07:54,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:07:54,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:07:54,031 INFO L87 Difference]: Start difference. First operand 840 states and 1069 transitions. Second operand 13 states. [2020-10-12 11:07:54,951 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-12 11:07:55,314 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-12 11:07:55,553 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-12 11:07:55,766 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-12 11:07:56,187 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-12 11:07:56,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:07:56,462 INFO L93 Difference]: Finished difference Result 1676 states and 2178 transitions. [2020-10-12 11:07:56,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 11:07:56,467 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 181 [2020-10-12 11:07:56,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:07:56,471 INFO L225 Difference]: With dead ends: 1676 [2020-10-12 11:07:56,471 INFO L226 Difference]: Without dead ends: 902 [2020-10-12 11:07:56,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-12 11:07:56,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2020-10-12 11:07:56,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 898. [2020-10-12 11:07:56,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2020-10-12 11:07:56,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1137 transitions. [2020-10-12 11:07:56,500 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1137 transitions. Word has length 181 [2020-10-12 11:07:56,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:07:56,501 INFO L479 AbstractCegarLoop]: Abstraction has 898 states and 1137 transitions. [2020-10-12 11:07:56,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:07:56,501 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1137 transitions. [2020-10-12 11:07:56,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-10-12 11:07:56,504 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:07:56,505 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:07:56,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 11:07:56,505 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:07:56,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:07:56,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1788384067, now seen corresponding path program 1 times [2020-10-12 11:07:56,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:07:56,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1349564473] [2020-10-12 11:07:56,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:07:56,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:56,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:56,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:56,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:56,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:57,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:58,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:58,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-12 11:07:58,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:07:58,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2198 [2020-10-12 11:07:58,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:58,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 11:07:58,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:07:58,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 11:07:58,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:59,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:07:59,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:59,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:59,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:59,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:07:59,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:59,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:07:59,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:59,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:07:59,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:59,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:07:59,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:59,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:07:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:59,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:59,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:59,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:07:59,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:59,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:07:59,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:59,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:07:59,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:07:59,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 11:07:59,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:07:59,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:07:59,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:07:59,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:07:59,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:07:59,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:07:59,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:07:59,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 11:07:59,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:07:59,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:07:59,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:07:59,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 11:07:59,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:00,231 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 47 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 11:08:00,232 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1349564473] [2020-10-12 11:08:00,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:08:00,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 11:08:00,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965430894] [2020-10-12 11:08:00,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 11:08:00,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:08:00,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 11:08:00,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:08:00,234 INFO L87 Difference]: Start difference. First operand 898 states and 1137 transitions. Second operand 20 states. [2020-10-12 11:08:01,015 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-10-12 11:08:01,278 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-12 11:08:01,552 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-10-12 11:08:01,849 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2020-10-12 11:08:02,094 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2020-10-12 11:08:02,569 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 93 [2020-10-12 11:08:03,021 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 94 [2020-10-12 11:08:03,235 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2020-10-12 11:08:03,407 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 48 [2020-10-12 11:08:03,647 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-12 11:08:03,842 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2020-10-12 11:08:04,046 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-12 11:08:04,474 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 47 [2020-10-12 11:08:04,631 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 47 [2020-10-12 11:08:05,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:08:05,547 INFO L93 Difference]: Finished difference Result 1845 states and 2412 transitions. [2020-10-12 11:08:05,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-12 11:08:05,549 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 189 [2020-10-12 11:08:05,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:08:05,555 INFO L225 Difference]: With dead ends: 1845 [2020-10-12 11:08:05,555 INFO L226 Difference]: Without dead ends: 1013 [2020-10-12 11:08:05,558 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=613, Invalid=1549, Unknown=0, NotChecked=0, Total=2162 [2020-10-12 11:08:05,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states. [2020-10-12 11:08:05,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 969. [2020-10-12 11:08:05,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 969 states. [2020-10-12 11:08:05,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1221 transitions. [2020-10-12 11:08:05,588 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1221 transitions. Word has length 189 [2020-10-12 11:08:05,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:08:05,588 INFO L479 AbstractCegarLoop]: Abstraction has 969 states and 1221 transitions. [2020-10-12 11:08:05,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 11:08:05,588 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1221 transitions. [2020-10-12 11:08:05,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-10-12 11:08:05,592 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:08:05,592 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:08:05,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 11:08:05,593 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:08:05,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:08:05,593 INFO L82 PathProgramCache]: Analyzing trace with hash -403515904, now seen corresponding path program 1 times [2020-10-12 11:08:05,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:08:05,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1265129611] [2020-10-12 11:08:05,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:08:05,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:05,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:05,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:05,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:07,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:09,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:09,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:10,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:10,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-10-12 11:08:10,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 11:08:10,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 11:08:10,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:10,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:08:10,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 11:08:10,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 11:08:10,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:11,025 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2020-10-12 11:08:11,179 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2020-10-12 11:08:11,406 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 41 [2020-10-12 11:08:11,635 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 39 [2020-10-12 11:08:11,870 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 37 [2020-10-12 11:08:12,077 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 35 [2020-10-12 11:08:12,221 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 32 [2020-10-12 11:08:12,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:08:12,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:12,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:12,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:12,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:08:12,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:12,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:08:12,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:12,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:12,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:12,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:12,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:12,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:08:12,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:12,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:12,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:12,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:08:12,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:12,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:08:12,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:12,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:12,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:12,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:12,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:12,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:08:12,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:12,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:12,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:12,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 11:08:12,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:12,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:08:12,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:12,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:12,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:12,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:12,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:12,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 11:08:12,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:12,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:12,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:12,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 11:08:12,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:12,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:08:12,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:12,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:08:12,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:12,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 11:08:12,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:12,467 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 54 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-12 11:08:12,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1265129611] [2020-10-12 11:08:12,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:08:12,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:08:12,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362983107] [2020-10-12 11:08:12,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:08:12,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:08:12,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:08:12,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:08:12,469 INFO L87 Difference]: Start difference. First operand 969 states and 1221 transitions. Second operand 13 states. [2020-10-12 11:08:12,785 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-12 11:08:13,108 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-12 11:08:13,585 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2020-10-12 11:08:13,876 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 90 [2020-10-12 11:08:14,173 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 89 [2020-10-12 11:08:14,390 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 87 [2020-10-12 11:08:15,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:08:15,163 INFO L93 Difference]: Finished difference Result 2050 states and 2631 transitions. [2020-10-12 11:08:15,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 11:08:15,164 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 191 [2020-10-12 11:08:15,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:08:15,169 INFO L225 Difference]: With dead ends: 2050 [2020-10-12 11:08:15,169 INFO L226 Difference]: Without dead ends: 1147 [2020-10-12 11:08:15,172 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2020-10-12 11:08:15,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2020-10-12 11:08:15,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 1044. [2020-10-12 11:08:15,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2020-10-12 11:08:15,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1305 transitions. [2020-10-12 11:08:15,205 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1305 transitions. Word has length 191 [2020-10-12 11:08:15,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:08:15,205 INFO L479 AbstractCegarLoop]: Abstraction has 1044 states and 1305 transitions. [2020-10-12 11:08:15,205 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:08:15,206 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1305 transitions. [2020-10-12 11:08:15,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-10-12 11:08:15,210 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:08:15,211 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:08:15,211 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 11:08:15,211 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:08:15,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:08:15,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1364263345, now seen corresponding path program 1 times [2020-10-12 11:08:15,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:08:15,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [400154503] [2020-10-12 11:08:15,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:08:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:15,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:15,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:15,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:17,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:18,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:19,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:19,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-10-12 11:08:19,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:08:19,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4031 [2020-10-12 11:08:19,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:19,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:08:19,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 11:08:19,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 11:08:19,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:19,633 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-12 11:08:19,778 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-12 11:08:19,925 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 38 [2020-10-12 11:08:20,059 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 34 [2020-10-12 11:08:20,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:08:20,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:20,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:20,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:20,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:08:20,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:20,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:08:20,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:20,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:20,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:20,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:20,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:20,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:08:20,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:20,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:20,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:20,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:08:20,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:20,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:08:20,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:20,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:20,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:20,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:20,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:08:20,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:08:20,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:20,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:20,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:20,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:08:20,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:20,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 11:08:20,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:20,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:08:20,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:20,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 11:08:20,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:20,665 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:08:20,665 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [400154503] [2020-10-12 11:08:20,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:08:20,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:08:20,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953313309] [2020-10-12 11:08:20,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:08:20,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:08:20,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:08:20,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:08:20,668 INFO L87 Difference]: Start difference. First operand 1044 states and 1305 transitions. Second operand 13 states. [2020-10-12 11:08:21,391 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 11:08:21,703 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-12 11:08:22,023 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-12 11:08:22,575 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-12 11:08:22,926 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-12 11:08:23,301 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-12 11:08:23,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:08:23,675 INFO L93 Difference]: Finished difference Result 2088 states and 2662 transitions. [2020-10-12 11:08:23,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 11:08:23,676 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 193 [2020-10-12 11:08:23,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:08:23,681 INFO L225 Difference]: With dead ends: 2088 [2020-10-12 11:08:23,681 INFO L226 Difference]: Without dead ends: 1110 [2020-10-12 11:08:23,684 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2020-10-12 11:08:23,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2020-10-12 11:08:23,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 1104. [2020-10-12 11:08:23,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1104 states. [2020-10-12 11:08:23,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1373 transitions. [2020-10-12 11:08:23,711 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1373 transitions. Word has length 193 [2020-10-12 11:08:23,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:08:23,711 INFO L479 AbstractCegarLoop]: Abstraction has 1104 states and 1373 transitions. [2020-10-12 11:08:23,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:08:23,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1373 transitions. [2020-10-12 11:08:23,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-12 11:08:23,716 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:08:23,716 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:08:23,716 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 11:08:23,716 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:08:23,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:08:23,717 INFO L82 PathProgramCache]: Analyzing trace with hash -2138022982, now seen corresponding path program 1 times [2020-10-12 11:08:23,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:08:23,717 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1472560316] [2020-10-12 11:08:23,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:08:23,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:23,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:23,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:23,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:24,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:25,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:28,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:28,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-12 11:08:28,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:08:28,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 11:08:28,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:28,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 11:08:28,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 11:08:28,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-12 11:08:28,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:29,135 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2020-10-12 11:08:29,334 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 48 [2020-10-12 11:08:29,475 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 40 [2020-10-12 11:08:29,665 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43 [2020-10-12 11:08:29,853 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 44 [2020-10-12 11:08:30,105 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 43 [2020-10-12 11:08:30,264 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 41 [2020-10-12 11:08:30,482 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 39 [2020-10-12 11:08:30,684 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 35 [2020-10-12 11:08:30,879 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 34 [2020-10-12 11:08:31,074 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 32 [2020-10-12 11:08:31,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:08:31,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:31,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:31,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:31,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:08:31,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:31,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:08:31,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:31,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:31,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:31,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:31,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:31,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:08:31,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:31,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:31,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:31,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:08:31,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:31,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:08:31,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:31,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:31,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:31,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:31,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:31,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:08:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:31,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:31,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:31,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:08:31,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:31,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 11:08:31,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:31,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:08:31,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:31,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 11:08:31,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:31,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 11:08:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:31,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:31,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:31,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:31,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:08:31,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:08:31,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 11:08:31,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:31,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:08:31,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:08:31,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 11:08:31,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:31,712 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 83 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-12 11:08:31,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1472560316] [2020-10-12 11:08:31,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:08:31,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-12 11:08:31,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347383267] [2020-10-12 11:08:31,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-12 11:08:31,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:08:31,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-12 11:08:31,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=281, Unknown=0, NotChecked=0, Total=420 [2020-10-12 11:08:31,717 INFO L87 Difference]: Start difference. First operand 1104 states and 1373 transitions. Second operand 21 states. [2020-10-12 11:08:32,687 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-12 11:08:32,980 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 114 [2020-10-12 11:08:33,396 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2020-10-12 11:08:33,683 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 111 [2020-10-12 11:08:33,878 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-10-12 11:08:34,178 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2020-10-12 11:08:34,509 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2020-10-12 11:08:34,812 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2020-10-12 11:08:35,352 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2020-10-12 11:08:35,773 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2020-10-12 11:08:36,080 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 11:08:36,317 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 11:08:36,495 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-12 11:08:36,783 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2020-10-12 11:08:37,046 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 11:08:37,260 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 11:08:37,460 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-12 11:08:37,751 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2020-10-12 11:08:38,102 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 105 [2020-10-12 11:08:38,663 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 11:08:38,883 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-12 11:08:39,143 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2020-10-12 11:08:39,445 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 11:08:39,663 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 11:08:39,830 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-12 11:08:40,072 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-12 11:08:40,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:08:40,188 INFO L93 Difference]: Finished difference Result 2312 states and 2989 transitions. [2020-10-12 11:08:40,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-12 11:08:40,189 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 206 [2020-10-12 11:08:40,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:08:40,195 INFO L225 Difference]: With dead ends: 2312 [2020-10-12 11:08:40,195 INFO L226 Difference]: Without dead ends: 1274 [2020-10-12 11:08:40,198 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 680 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=890, Invalid=2080, Unknown=0, NotChecked=0, Total=2970 [2020-10-12 11:08:40,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1274 states. [2020-10-12 11:08:40,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1274 to 1179. [2020-10-12 11:08:40,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1179 states. [2020-10-12 11:08:40,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1179 states to 1179 states and 1469 transitions. [2020-10-12 11:08:40,231 INFO L78 Accepts]: Start accepts. Automaton has 1179 states and 1469 transitions. Word has length 206 [2020-10-12 11:08:40,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:08:40,231 INFO L479 AbstractCegarLoop]: Abstraction has 1179 states and 1469 transitions. [2020-10-12 11:08:40,231 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-12 11:08:40,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1179 states and 1469 transitions. [2020-10-12 11:08:40,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-10-12 11:08:40,237 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:08:40,237 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:08:40,237 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 11:08:40,237 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:08:40,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:08:40,238 INFO L82 PathProgramCache]: Analyzing trace with hash 959003750, now seen corresponding path program 1 times [2020-10-12 11:08:40,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:08:40,238 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [35359095] [2020-10-12 11:08:40,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:08:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:40,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:40,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:40,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:40,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:41,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:42,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:42,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-10-12 11:08:42,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:08:42,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1772 [2020-10-12 11:08:42,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:42,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:08:42,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-12 11:08:42,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 11:08:42,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:42,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:08:42,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:42,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:42,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:42,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:08:42,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:42,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:08:42,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:42,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:42,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:42,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:42,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:42,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:08:42,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:42,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:42,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:42,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:08:42,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:42,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:08:42,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:42,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:42,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:42,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:42,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:42,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:08:42,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:42,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:42,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:42,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:08:42,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:42,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 11:08:42,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:42,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:42,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:42,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:42,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:42,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 11:08:42,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:42,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:42,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:42,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 11:08:42,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:42,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 11:08:42,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:42,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:08:42,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:42,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 11:08:42,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:42,721 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-12 11:08:42,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [35359095] [2020-10-12 11:08:42,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:08:42,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:08:42,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587778894] [2020-10-12 11:08:42,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:08:42,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:08:42,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:08:42,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:08:42,723 INFO L87 Difference]: Start difference. First operand 1179 states and 1469 transitions. Second operand 13 states. [2020-10-12 11:08:44,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:08:44,436 INFO L93 Difference]: Finished difference Result 2356 states and 2982 transitions. [2020-10-12 11:08:44,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 11:08:44,440 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 215 [2020-10-12 11:08:44,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:08:44,446 INFO L225 Difference]: With dead ends: 2356 [2020-10-12 11:08:44,446 INFO L226 Difference]: Without dead ends: 1243 [2020-10-12 11:08:44,448 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-12 11:08:44,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2020-10-12 11:08:44,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 1181. [2020-10-12 11:08:44,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1181 states. [2020-10-12 11:08:44,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 1473 transitions. [2020-10-12 11:08:44,480 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 1473 transitions. Word has length 215 [2020-10-12 11:08:44,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:08:44,481 INFO L479 AbstractCegarLoop]: Abstraction has 1181 states and 1473 transitions. [2020-10-12 11:08:44,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:08:44,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 1473 transitions. [2020-10-12 11:08:44,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-12 11:08:44,485 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:08:44,486 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:08:44,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 11:08:44,486 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:08:44,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:08:44,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1154901904, now seen corresponding path program 1 times [2020-10-12 11:08:44,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:08:44,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1478216032] [2020-10-12 11:08:44,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:08:44,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:44,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:44,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:44,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:44,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:45,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:46,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:49,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:49,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-10-12 11:08:49,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 11:08:49,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4528 [2020-10-12 11:08:49,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:49,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:08:49,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:08:49,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 11:08:49,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:49,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:08:49,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:49,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:49,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:49,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:08:49,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:49,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:08:49,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:49,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:08:49,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:49,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:08:49,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:49,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:08:49,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:49,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:49,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:49,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:49,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:08:49,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:08:49,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:08:49,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:49,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:08:49,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:08:49,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:08:49,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:49,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:08:49,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:49,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:49,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:49,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:08:49,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:49,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 11:08:49,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:49,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:08:49,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:08:49,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 11:08:49,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:49,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 11:08:49,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:49,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:49,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:49,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:08:49,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:49,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:08:49,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:49,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:49,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 11:08:49,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:49,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:49,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 11:08:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:49,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:49,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:49,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:08:49,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:49,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:08:49,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:49,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:49,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 11:08:49,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:49,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:49,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 11:08:49,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:49,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:49,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:49,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:08:49,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:49,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:08:49,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:49,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:49,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:08:49,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:49,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:49,294 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 112 proven. 53 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-10-12 11:08:49,294 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1478216032] [2020-10-12 11:08:49,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:08:49,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 11:08:49,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805336128] [2020-10-12 11:08:49,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 11:08:49,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:08:49,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 11:08:49,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:08:49,296 INFO L87 Difference]: Start difference. First operand 1181 states and 1473 transitions. Second operand 8 states. [2020-10-12 11:08:50,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:08:50,602 INFO L93 Difference]: Finished difference Result 2616 states and 3309 transitions. [2020-10-12 11:08:50,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 11:08:50,603 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 241 [2020-10-12 11:08:50,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:08:50,608 INFO L225 Difference]: With dead ends: 2616 [2020-10-12 11:08:50,608 INFO L226 Difference]: Without dead ends: 1501 [2020-10-12 11:08:50,610 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:08:50,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1501 states. [2020-10-12 11:08:50,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1501 to 1483. [2020-10-12 11:08:50,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1483 states. [2020-10-12 11:08:50,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 1833 transitions. [2020-10-12 11:08:50,646 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 1833 transitions. Word has length 241 [2020-10-12 11:08:50,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:08:50,646 INFO L479 AbstractCegarLoop]: Abstraction has 1483 states and 1833 transitions. [2020-10-12 11:08:50,646 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 11:08:50,647 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 1833 transitions. [2020-10-12 11:08:50,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-12 11:08:50,651 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:08:50,652 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:08:50,652 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 11:08:50,652 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:08:50,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:08:50,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1033604583, now seen corresponding path program 1 times [2020-10-12 11:08:50,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:08:50,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [279202594] [2020-10-12 11:08:50,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:08:50,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:50,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:50,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:50,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:51,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:51,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:52,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:55,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:55,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-10-12 11:08:55,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 11:08:55,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 11:08:55,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:55,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 11:08:55,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 11:08:55,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 11:08:55,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:56,254 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2020-10-12 11:08:56,488 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 49 [2020-10-12 11:08:56,780 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 58 [2020-10-12 11:08:57,003 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 49 [2020-10-12 11:08:57,366 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 53 [2020-10-12 11:08:57,748 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 51 [2020-10-12 11:08:58,135 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 52 [2020-10-12 11:08:58,429 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 51 [2020-10-12 11:08:58,741 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 54 [2020-10-12 11:08:59,019 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 48 [2020-10-12 11:08:59,270 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 42 [2020-10-12 11:08:59,458 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 32 [2020-10-12 11:08:59,687 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 35 [2020-10-12 11:08:59,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:08:59,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:59,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:59,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:59,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:08:59,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:59,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:08:59,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:59,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:59,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:59,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:59,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:59,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:08:59,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:59,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:59,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:59,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:08:59,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:59,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:08:59,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:59,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:59,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:59,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:59,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:59,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:08:59,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:59,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:59,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:59,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 11:08:59,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:59,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:08:59,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:59,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:08:59,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:59,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:08:59,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:59,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 11:08:59,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:59,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:59,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:59,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 11:08:59,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:08:59,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:08:59,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:59,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:08:59,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:08:59,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 11:08:59,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:08:59,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 11:08:59,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:08:59,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:59,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:08:59,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:08:59,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:08:59,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:08:59,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-12 11:08:59,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:08:59,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:08:59,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:08:59,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 11:08:59,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:00,703 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 109 proven. 49 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-12 11:09:00,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [279202594] [2020-10-12 11:09:00,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:09:00,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 11:09:00,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135132925] [2020-10-12 11:09:00,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 11:09:00,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:09:00,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 11:09:00,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=260, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:09:00,707 INFO L87 Difference]: Start difference. First operand 1483 states and 1833 transitions. Second operand 20 states. [2020-10-12 11:09:01,001 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-12 11:09:01,256 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 11:09:01,745 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 121 [2020-10-12 11:09:02,114 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 114 [2020-10-12 11:09:02,517 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 116 [2020-10-12 11:09:02,905 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 114 [2020-10-12 11:09:03,256 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 114 [2020-10-12 11:09:03,664 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2020-10-12 11:09:04,020 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 114 [2020-10-12 11:09:04,478 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 117 [2020-10-12 11:09:04,789 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2020-10-12 11:09:05,163 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 107 [2020-10-12 11:09:05,446 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 100 [2020-10-12 11:09:05,720 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-12 11:09:06,083 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-10-12 11:09:06,381 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 82 [2020-10-12 11:09:07,324 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-12 11:09:07,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:09:07,699 INFO L93 Difference]: Finished difference Result 3013 states and 3777 transitions. [2020-10-12 11:09:07,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-12 11:09:07,705 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 241 [2020-10-12 11:09:07,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:09:07,710 INFO L225 Difference]: With dead ends: 3013 [2020-10-12 11:09:07,711 INFO L226 Difference]: Without dead ends: 1596 [2020-10-12 11:09:07,714 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=577, Invalid=1229, Unknown=0, NotChecked=0, Total=1806 [2020-10-12 11:09:07,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1596 states. [2020-10-12 11:09:07,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1596 to 1416. [2020-10-12 11:09:07,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1416 states. [2020-10-12 11:09:07,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 1759 transitions. [2020-10-12 11:09:07,749 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 1759 transitions. Word has length 241 [2020-10-12 11:09:07,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:09:07,749 INFO L479 AbstractCegarLoop]: Abstraction has 1416 states and 1759 transitions. [2020-10-12 11:09:07,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 11:09:07,750 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 1759 transitions. [2020-10-12 11:09:07,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-10-12 11:09:07,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:09:07,755 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:09:07,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 11:09:07,755 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:09:07,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:09:07,755 INFO L82 PathProgramCache]: Analyzing trace with hash 708329638, now seen corresponding path program 1 times [2020-10-12 11:09:07,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:09:07,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [204492328] [2020-10-12 11:09:07,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:09:07,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:07,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:08,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:08,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:08,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:08,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:09,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:09,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-10-12 11:09:09,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:09:09,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2185 [2020-10-12 11:09:09,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:09,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:09:09,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:09:09,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-12 11:09:09,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:10,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:09:10,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:10,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:10,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:10,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:09:10,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:10,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:09:10,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:10,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:09:10,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:10,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:09:10,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:09:10,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:09:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:10,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:10,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:10,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:09:10,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:10,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:09:10,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:10,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:09:10,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:09:10,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 11:09:10,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:10,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:09:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:10,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:10,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:10,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:09:10,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:10,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-12 11:09:10,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:10,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:09:10,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:09:10,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 11:09:10,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:09:10,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 11:09:10,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:10,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:10,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:10,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 11:09:10,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:10,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-12 11:09:10,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:10,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:09:10,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:09:10,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 11:09:10,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:09:10,453 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-10-12 11:09:10,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [204492328] [2020-10-12 11:09:10,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:09:10,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:09:10,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135033089] [2020-10-12 11:09:10,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 11:09:10,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:09:10,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 11:09:10,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:09:10,458 INFO L87 Difference]: Start difference. First operand 1416 states and 1759 transitions. Second operand 6 states. [2020-10-12 11:09:11,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:09:11,670 INFO L93 Difference]: Finished difference Result 2307 states and 2900 transitions. [2020-10-12 11:09:11,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 11:09:11,676 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 247 [2020-10-12 11:09:11,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:09:11,683 INFO L225 Difference]: With dead ends: 2307 [2020-10-12 11:09:11,683 INFO L226 Difference]: Without dead ends: 2305 [2020-10-12 11:09:11,683 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:09:11,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2305 states. [2020-10-12 11:09:11,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2305 to 2096. [2020-10-12 11:09:11,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2096 states. [2020-10-12 11:09:11,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2096 states to 2096 states and 2583 transitions. [2020-10-12 11:09:11,734 INFO L78 Accepts]: Start accepts. Automaton has 2096 states and 2583 transitions. Word has length 247 [2020-10-12 11:09:11,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:09:11,735 INFO L479 AbstractCegarLoop]: Abstraction has 2096 states and 2583 transitions. [2020-10-12 11:09:11,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 11:09:11,735 INFO L276 IsEmpty]: Start isEmpty. Operand 2096 states and 2583 transitions. [2020-10-12 11:09:11,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-10-12 11:09:11,742 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:09:11,742 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:09:11,742 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 11:09:11,742 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:09:11,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:09:11,743 INFO L82 PathProgramCache]: Analyzing trace with hash 2011824557, now seen corresponding path program 1 times [2020-10-12 11:09:11,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:09:11,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [21310498] [2020-10-12 11:09:11,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:09:11,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:11,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:11,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:12,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:12,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:13,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:13,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:13,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:15,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:15,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 11:09:15,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 11:09:15,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3452 [2020-10-12 11:09:15,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:15,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:09:15,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 11:09:15,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-12 11:09:15,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:15,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:09:15,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:15,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:15,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:15,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:09:15,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:15,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:09:15,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:15,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:15,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:15,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:15,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:15,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:09:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:15,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:15,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:15,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:09:15,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:15,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:09:15,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:15,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:09:15,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:15,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 11:09:15,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:15,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:09:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:15,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:15,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:15,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:15,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:09:15,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:09:15,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 11:09:15,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:15,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:09:15,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:09:15,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 11:09:15,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:15,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 11:09:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:15,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:15,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:15,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:15,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:09:15,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:09:15,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-12 11:09:15,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:15,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:09:15,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:09:15,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 11:09:15,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:15,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 11:09:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:15,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:15,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:15,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 11:09:15,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:15,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-12 11:09:15,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:15,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:09:15,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:09:15,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 11:09:15,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:15,598 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 136 proven. 54 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-12 11:09:15,598 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [21310498] [2020-10-12 11:09:15,598 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:09:15,598 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 11:09:15,599 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245671578] [2020-10-12 11:09:15,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 11:09:15,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:09:15,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 11:09:15,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:09:15,600 INFO L87 Difference]: Start difference. First operand 2096 states and 2583 transitions. Second operand 8 states. [2020-10-12 11:09:17,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:09:17,345 INFO L93 Difference]: Finished difference Result 4533 states and 5648 transitions. [2020-10-12 11:09:17,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 11:09:17,353 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 258 [2020-10-12 11:09:17,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:09:17,361 INFO L225 Difference]: With dead ends: 4533 [2020-10-12 11:09:17,361 INFO L226 Difference]: Without dead ends: 2083 [2020-10-12 11:09:17,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:09:17,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2083 states. [2020-10-12 11:09:17,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2083 to 1806. [2020-10-12 11:09:17,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1806 states. [2020-10-12 11:09:17,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1806 states to 1806 states and 2082 transitions. [2020-10-12 11:09:17,414 INFO L78 Accepts]: Start accepts. Automaton has 1806 states and 2082 transitions. Word has length 258 [2020-10-12 11:09:17,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:09:17,415 INFO L479 AbstractCegarLoop]: Abstraction has 1806 states and 2082 transitions. [2020-10-12 11:09:17,415 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 11:09:17,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1806 states and 2082 transitions. [2020-10-12 11:09:17,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-10-12 11:09:17,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:09:17,421 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:09:17,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 11:09:17,422 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:09:17,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:09:17,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1687392916, now seen corresponding path program 1 times [2020-10-12 11:09:17,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:09:17,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1463371475] [2020-10-12 11:09:17,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:09:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:17,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:17,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:18,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:18,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:18,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 289 [2020-10-12 11:09:18,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:09:18,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1098 [2020-10-12 11:09:18,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:18,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:09:18,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-12 11:09:18,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-12 11:09:18,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:18,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:09:18,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:18,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:18,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:18,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:09:18,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:18,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:09:18,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:18,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:18,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:18,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:18,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:18,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:09:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:18,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:18,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:18,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:09:18,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:18,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:09:18,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:18,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:18,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:18,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:18,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:18,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:09:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:18,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:18,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:18,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:09:18,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:18,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:09:18,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:18,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:18,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:18,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:18,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:18,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-12 11:09:18,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:18,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:18,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:18,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:09:18,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:18,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:09:18,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:18,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:18,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:18,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:18,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:18,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 11:09:18,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:18,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:18,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:18,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:09:18,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:18,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:09:18,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:18,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:18,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:18,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:18,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:18,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-12 11:09:18,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:18,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:18,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:18,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:09:18,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:18,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:09:18,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:18,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:09:18,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:18,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 11:09:18,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:19,018 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 132 proven. 5 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2020-10-12 11:09:19,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1463371475] [2020-10-12 11:09:19,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:09:19,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:09:19,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848247018] [2020-10-12 11:09:19,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:09:19,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:09:19,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:09:19,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:09:19,020 INFO L87 Difference]: Start difference. First operand 1806 states and 2082 transitions. Second operand 7 states. [2020-10-12 11:09:20,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:09:20,096 INFO L93 Difference]: Finished difference Result 3253 states and 3732 transitions. [2020-10-12 11:09:20,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:09:20,097 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 271 [2020-10-12 11:09:20,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:09:20,102 INFO L225 Difference]: With dead ends: 3253 [2020-10-12 11:09:20,102 INFO L226 Difference]: Without dead ends: 1814 [2020-10-12 11:09:20,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:09:20,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1814 states. [2020-10-12 11:09:20,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1814 to 1806. [2020-10-12 11:09:20,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1806 states. [2020-10-12 11:09:20,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1806 states to 1806 states and 2079 transitions. [2020-10-12 11:09:20,144 INFO L78 Accepts]: Start accepts. Automaton has 1806 states and 2079 transitions. Word has length 271 [2020-10-12 11:09:20,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:09:20,145 INFO L479 AbstractCegarLoop]: Abstraction has 1806 states and 2079 transitions. [2020-10-12 11:09:20,145 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:09:20,145 INFO L276 IsEmpty]: Start isEmpty. Operand 1806 states and 2079 transitions. [2020-10-12 11:09:20,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-10-12 11:09:20,151 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:09:20,151 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:09:20,151 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 11:09:20,151 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:09:20,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:09:20,152 INFO L82 PathProgramCache]: Analyzing trace with hash 2008516330, now seen corresponding path program 1 times [2020-10-12 11:09:20,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:09:20,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [497197064] [2020-10-12 11:09:20,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:09:20,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:20,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:20,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:20,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:21,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:23,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:23,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 294 [2020-10-12 11:09:23,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:09:23,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2838 [2020-10-12 11:09:23,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:23,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:09:23,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-12 11:09:23,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-12 11:09:23,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:23,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:09:23,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:23,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:23,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:23,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:09:23,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:23,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:09:23,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:23,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:23,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:23,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:23,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:23,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:09:23,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:23,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:23,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:23,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:09:23,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:23,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 11:09:23,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:23,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:09:23,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:23,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 11:09:23,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:23,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:09:23,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:23,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:23,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:23,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:09:23,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:23,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 11:09:23,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:23,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:09:23,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:09:23,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 11:09:23,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:23,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-12 11:09:23,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:23,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:23,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:23,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:09:23,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:23,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:09:23,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:23,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:23,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 11:09:23,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:23,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:23,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 11:09:23,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:23,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:23,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:23,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:09:23,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:23,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:09:23,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:23,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:23,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 11:09:23,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:23,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:23,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-12 11:09:23,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:23,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:23,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:23,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 11:09:23,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:23,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 11:09:23,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:23,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:23,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 11:09:23,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:23,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:23,270 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 180 proven. 46 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2020-10-12 11:09:23,270 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [497197064] [2020-10-12 11:09:23,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:09:23,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:09:23,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531653752] [2020-10-12 11:09:23,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:09:23,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:09:23,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:09:23,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:09:23,272 INFO L87 Difference]: Start difference. First operand 1806 states and 2079 transitions. Second operand 7 states. [2020-10-12 11:09:24,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:09:24,442 INFO L93 Difference]: Finished difference Result 3811 states and 4375 transitions. [2020-10-12 11:09:24,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 11:09:24,443 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 276 [2020-10-12 11:09:24,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:09:24,450 INFO L225 Difference]: With dead ends: 3811 [2020-10-12 11:09:24,450 INFO L226 Difference]: Without dead ends: 2368 [2020-10-12 11:09:24,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 11:09:24,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2368 states. [2020-10-12 11:09:24,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2368 to 2219. [2020-10-12 11:09:24,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2219 states. [2020-10-12 11:09:24,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2219 states to 2219 states and 2553 transitions. [2020-10-12 11:09:24,495 INFO L78 Accepts]: Start accepts. Automaton has 2219 states and 2553 transitions. Word has length 276 [2020-10-12 11:09:24,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:09:24,496 INFO L479 AbstractCegarLoop]: Abstraction has 2219 states and 2553 transitions. [2020-10-12 11:09:24,496 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:09:24,496 INFO L276 IsEmpty]: Start isEmpty. Operand 2219 states and 2553 transitions. [2020-10-12 11:09:24,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2020-10-12 11:09:24,502 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:09:24,502 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:09:24,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 11:09:24,502 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:09:24,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:09:24,503 INFO L82 PathProgramCache]: Analyzing trace with hash -491128742, now seen corresponding path program 1 times [2020-10-12 11:09:24,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:09:24,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1270997415] [2020-10-12 11:09:24,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:09:24,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:24,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:24,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:24,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:25,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:26,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:26,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 305 [2020-10-12 11:09:26,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:09:26,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2137 [2020-10-12 11:09:26,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:26,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:09:26,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-12 11:09:26,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 11:09:26,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:26,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:09:26,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:26,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:26,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:26,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:09:26,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:26,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:09:26,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:26,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:26,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:26,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:26,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:26,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:09:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:26,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:26,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:26,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:09:26,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:26,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 11:09:26,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:26,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:26,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:26,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:26,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:26,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:09:26,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:26,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:26,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:26,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:09:26,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:26,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:09:26,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:26,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:26,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:26,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:26,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:26,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 11:09:26,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:26,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:26,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:26,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 11:09:26,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:26,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 11:09:26,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:26,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:09:26,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:26,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-12 11:09:26,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:26,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-12 11:09:26,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:26,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:26,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:26,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:09:26,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:26,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 11:09:26,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:26,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:09:26,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:09:26,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 11:09:26,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:26,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 11:09:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:26,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:26,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:26,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 11:09:26,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:26,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:09:26,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:26,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:26,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 11:09:26,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:26,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:26,936 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 192 proven. 14 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-12 11:09:26,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1270997415] [2020-10-12 11:09:26,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:09:26,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:09:26,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61199982] [2020-10-12 11:09:26,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:09:26,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:09:26,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:09:26,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:09:26,938 INFO L87 Difference]: Start difference. First operand 2219 states and 2553 transitions. Second operand 7 states. [2020-10-12 11:09:28,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:09:28,333 INFO L93 Difference]: Finished difference Result 5056 states and 5821 transitions. [2020-10-12 11:09:28,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 11:09:28,334 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 287 [2020-10-12 11:09:28,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:09:28,344 INFO L225 Difference]: With dead ends: 5056 [2020-10-12 11:09:28,344 INFO L226 Difference]: Without dead ends: 2766 [2020-10-12 11:09:28,348 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-12 11:09:28,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2766 states. [2020-10-12 11:09:28,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2766 to 2758. [2020-10-12 11:09:28,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2758 states. [2020-10-12 11:09:28,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2758 states to 2758 states and 3094 transitions. [2020-10-12 11:09:28,406 INFO L78 Accepts]: Start accepts. Automaton has 2758 states and 3094 transitions. Word has length 287 [2020-10-12 11:09:28,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:09:28,406 INFO L479 AbstractCegarLoop]: Abstraction has 2758 states and 3094 transitions. [2020-10-12 11:09:28,407 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:09:28,407 INFO L276 IsEmpty]: Start isEmpty. Operand 2758 states and 3094 transitions. [2020-10-12 11:09:28,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-10-12 11:09:28,413 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:09:28,413 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:09:28,414 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 11:09:28,414 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:09:28,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:09:28,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1911183710, now seen corresponding path program 1 times [2020-10-12 11:09:28,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:09:28,414 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1203952089] [2020-10-12 11:09:28,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:09:28,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:28,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:28,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:29,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:30,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:30,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:30,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 322 [2020-10-12 11:09:30,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:09:30,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2521 [2020-10-12 11:09:30,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:30,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:09:30,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 191 [2020-10-12 11:09:30,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-12 11:09:30,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:31,381 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 45 [2020-10-12 11:09:31,525 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 43 [2020-10-12 11:09:31,665 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 39 [2020-10-12 11:09:31,791 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 35 [2020-10-12 11:09:32,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:09:32,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:32,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:32,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:32,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:09:32,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:32,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:09:32,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:32,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:32,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:32,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:32,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:32,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:09:32,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:32,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:32,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:32,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-12 11:09:32,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:32,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:09:32,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:32,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:32,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:32,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:32,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:32,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 11:09:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:32,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:32,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:32,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:09:32,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:32,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:09:32,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:32,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:32,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:32,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:32,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:32,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-12 11:09:32,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:32,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:32,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:32,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:09:32,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:32,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:09:32,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:32,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:32,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:32,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:32,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:32,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 11:09:32,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:32,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:32,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:32,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:09:32,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:32,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:09:32,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:32,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:32,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:32,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:32,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:32,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-12 11:09:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:32,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:32,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:32,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 11:09:32,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:32,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 11:09:32,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:32,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:09:32,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:32,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 11:09:32,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:32,375 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 165 proven. 5 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2020-10-12 11:09:32,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1203952089] [2020-10-12 11:09:32,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:09:32,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:09:32,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713598192] [2020-10-12 11:09:32,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:09:32,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:09:32,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:09:32,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:09:32,377 INFO L87 Difference]: Start difference. First operand 2758 states and 3094 transitions. Second operand 13 states. [2020-10-12 11:09:33,398 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 11:09:33,767 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2020-10-12 11:09:34,226 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2020-10-12 11:09:34,557 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 106 [2020-10-12 11:09:34,826 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 103 [2020-10-12 11:09:35,167 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 98 [2020-10-12 11:09:35,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:09:35,230 INFO L93 Difference]: Finished difference Result 4746 states and 5337 transitions. [2020-10-12 11:09:35,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 11:09:35,231 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 304 [2020-10-12 11:09:35,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:09:35,240 INFO L225 Difference]: With dead ends: 4746 [2020-10-12 11:09:35,240 INFO L226 Difference]: Without dead ends: 2693 [2020-10-12 11:09:35,244 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2020-10-12 11:09:35,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2693 states. [2020-10-12 11:09:35,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2693 to 2677. [2020-10-12 11:09:35,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2677 states. [2020-10-12 11:09:35,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 2987 transitions. [2020-10-12 11:09:35,290 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 2987 transitions. Word has length 304 [2020-10-12 11:09:35,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:09:35,291 INFO L479 AbstractCegarLoop]: Abstraction has 2677 states and 2987 transitions. [2020-10-12 11:09:35,291 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:09:35,291 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 2987 transitions. [2020-10-12 11:09:35,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-10-12 11:09:35,298 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:09:35,298 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:09:35,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-12 11:09:35,298 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:09:35,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:09:35,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1269248321, now seen corresponding path program 1 times [2020-10-12 11:09:35,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:09:35,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1115441542] [2020-10-12 11:09:35,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:09:35,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:35,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:35,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:35,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:35,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 347 [2020-10-12 11:09:35,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:09:35,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 531 [2020-10-12 11:09:35,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:35,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:09:35,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-12 11:09:35,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-12 11:09:35,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:36,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:09:36,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:36,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:36,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:36,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:09:36,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:36,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:09:36,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:36,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:36,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:36,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:36,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:36,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:09:36,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:36,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:36,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:36,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-12 11:09:36,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:36,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 11:09:36,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:36,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:36,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:36,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:36,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:36,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 11:09:36,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:36,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:36,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:36,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:09:36,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:36,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 11:09:36,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:36,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:36,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:36,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:36,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:36,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-12 11:09:36,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:36,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:36,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:36,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:09:36,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:36,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:09:36,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:36,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:09:36,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:36,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:09:36,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:36,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 11:09:36,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:09:36,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:09:36,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:09:36,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 11:09:36,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:09:36,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 11:09:36,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:09:36,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:09:36,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:09:36,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 11:09:36,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:09:36,398 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 193 proven. 4 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2020-10-12 11:09:36,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1115441542] [2020-10-12 11:09:36,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:09:36,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:09:36,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067989887] [2020-10-12 11:09:36,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 11:09:36,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:09:36,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 11:09:36,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:09:36,400 INFO L87 Difference]: Start difference. First operand 2677 states and 2987 transitions. Second operand 5 states. [2020-10-12 11:09:37,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:09:37,302 INFO L93 Difference]: Finished difference Result 4601 states and 5144 transitions. [2020-10-12 11:09:37,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:09:37,303 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 331 [2020-10-12 11:09:37,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:09:37,304 INFO L225 Difference]: With dead ends: 4601 [2020-10-12 11:09:37,304 INFO L226 Difference]: Without dead ends: 0 [2020-10-12 11:09:37,314 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:09:37,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-12 11:09:37,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-12 11:09:37,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-12 11:09:37,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-12 11:09:37,316 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 331 [2020-10-12 11:09:37,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:09:37,317 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-12 11:09:37,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 11:09:37,317 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-12 11:09:37,317 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-12 11:09:37,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-12 11:09:37,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-12 11:09:38,613 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 218 [2020-10-12 11:09:38,855 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 287 DAG size of output: 173 [2020-10-12 11:09:39,048 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 49 [2020-10-12 11:09:40,907 WARN L193 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 364 DAG size of output: 128 [2020-10-12 11:09:41,577 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 99 [2020-10-12 11:09:42,065 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 77 [2020-10-12 11:09:42,069 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-12 11:09:42,070 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-12 11:09:42,070 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-12 11:09:42,070 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-10-12 11:09:42,070 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-10-12 11:09:42,071 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,071 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,071 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,071 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,071 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,071 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,071 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-10-12 11:09:42,071 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-10-12 11:09:42,072 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-10-12 11:09:42,072 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-10-12 11:09:42,072 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-10-12 11:09:42,072 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-10-12 11:09:42,072 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-10-12 11:09:42,072 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-10-12 11:09:42,072 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-10-12 11:09:42,072 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-10-12 11:09:42,073 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,073 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,073 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,073 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,073 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,073 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,073 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-10-12 11:09:42,073 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-10-12 11:09:42,073 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-10-12 11:09:42,073 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-10-12 11:09:42,073 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-10-12 11:09:42,074 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-10-12 11:09:42,074 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-10-12 11:09:42,074 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-10-12 11:09:42,074 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-10-12 11:09:42,074 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-10-12 11:09:42,074 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-10-12 11:09:42,074 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 551) no Hoare annotation was computed. [2020-10-12 11:09:42,074 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-10-12 11:09:42,074 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-10-12 11:09:42,074 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-10-12 11:09:42,074 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-10-12 11:09:42,074 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,074 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,075 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,075 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,075 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,075 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-10-12 11:09:42,075 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-10-12 11:09:42,075 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-10-12 11:09:42,075 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-10-12 11:09:42,075 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-10-12 11:09:42,075 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-10-12 11:09:42,075 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-10-12 11:09:42,075 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-10-12 11:09:42,075 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-10-12 11:09:42,075 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,076 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,076 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,076 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,076 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,076 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-10-12 11:09:42,076 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-10-12 11:09:42,076 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-10-12 11:09:42,076 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-10-12 11:09:42,076 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-10-12 11:09:42,077 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-10-12 11:09:42,077 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-10-12 11:09:42,077 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-10-12 11:09:42,077 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-10-12 11:09:42,077 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-10-12 11:09:42,077 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-10-12 11:09:42,077 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-10-12 11:09:42,077 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-10-12 11:09:42,077 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,077 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,078 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,078 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,078 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,078 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-10-12 11:09:42,078 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-10-12 11:09:42,078 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-10-12 11:09:42,078 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-10-12 11:09:42,078 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-10-12 11:09:42,078 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-10-12 11:09:42,078 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-10-12 11:09:42,078 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-10-12 11:09:42,078 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-10-12 11:09:42,079 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,079 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,079 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,079 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,079 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,079 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,079 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-10-12 11:09:42,079 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,079 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-10-12 11:09:42,079 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-10-12 11:09:42,079 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-10-12 11:09:42,079 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-10-12 11:09:42,079 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-10-12 11:09:42,079 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-10-12 11:09:42,079 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-10-12 11:09:42,080 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-10-12 11:09:42,080 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-10-12 11:09:42,080 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-10-12 11:09:42,080 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-10-12 11:09:42,080 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-10-12 11:09:42,080 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-10-12 11:09:42,080 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,080 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,080 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,080 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,080 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,080 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-10-12 11:09:42,080 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-10-12 11:09:42,080 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-10-12 11:09:42,080 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-10-12 11:09:42,081 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-10-12 11:09:42,081 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-10-12 11:09:42,081 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-10-12 11:09:42,081 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-10-12 11:09:42,081 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,081 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,081 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,081 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,081 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,082 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-10-12 11:09:42,082 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-10-12 11:09:42,082 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-10-12 11:09:42,082 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-10-12 11:09:42,082 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-10-12 11:09:42,082 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-10-12 11:09:42,082 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-10-12 11:09:42,082 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-10-12 11:09:42,082 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-10-12 11:09:42,082 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-10-12 11:09:42,083 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse1 (= ~a17~0 |old(~a17~0)|)) (.cse9 (= ~a7~0 |old(~a7~0)|)) (.cse15 (= ~a21~0 |old(~a21~0)|)) (.cse3 (= ~a20~0 |old(~a20~0)|)) (.cse4 (= ~a16~0 |old(~a16~0)|)) (.cse5 (= ~a8~0 |old(~a8~0)|)) (.cse14 (= |old(~a7~0)| 1))) (let ((.cse6 (not (<= |old(~a17~0)| 0))) (.cse2 (= ~a21~0 1)) (.cse10 (= ~a8~0 15)) (.cse11 (not (= 15 |old(~a8~0)|))) (.cse13 (and (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|))) (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4))) (or (not (<= |calculate_output_#in~input| 2)) (not (<= 2 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 3)) (not (<= 3 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 6)) (not (<= 6 |calculate_output_#in~input|))) (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1))))) (.cse8 (not (= ~a12~0 8))) (.cse7 (not (= |old(~a21~0)| 1))) (.cse0 (not .cse14)) (.cse12 (= |old(~a20~0)| 1)) (.cse16 (and .cse1 .cse9 .cse15 .cse3 .cse4 .cse5))) (and (or (not (<= 14 |old(~a8~0)|)) (not (<= |old(~a16~0)| 5)) .cse0 (and (<= 1 ~a7~0) .cse1 .cse2 .cse3 .cse4 .cse5 (<= ~a7~0 1)) (not (<= |old(~a8~0)| 14)) .cse6 .cse7 .cse8 (not (<= |old(~a20~0)| 0))) (or (not (< |old(~a20~0)| (+ |old(~a17~0)| 1))) (and .cse9 .cse1 .cse2 .cse3 .cse10 (= 5 ~a16~0)) .cse0 .cse6 (not (= 5 |old(~a16~0)|)) (not (<= |old(~a17~0)| |old(~a20~0)|)) .cse11 .cse7 .cse8) (or (and .cse9 .cse1 .cse3 .cse2 .cse4 .cse10) .cse12 .cse13 (not (= 6 |old(~a16~0)|)) .cse11 .cse7 .cse8 .cse14) (or (not (= |old(~a8~0)| 13)) (not (= |old(~a17~0)| 1)) .cse13 .cse0 (and .cse9 .cse1 .cse15 .cse3 (= ~a8~0 13) (= ~a16~0 4)) (not (= 0 |old(~a20~0)|)) .cse8 (not (= 4 |old(~a16~0)|))) (or (not (<= |old(~a7~0)| 0)) .cse16 .cse7) (or .cse0 (not (<= |old(~a16~0)| 4)) (and .cse1 .cse9 .cse3 .cse4 .cse5 (<= ~a21~0 1) (<= 1 ~a21~0)) .cse7) (or .cse0 (not .cse12) .cse16)))) [2020-10-12 11:09:42,083 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-10-12 11:09:42,083 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,083 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,083 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,084 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,084 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-10-12 11:09:42,084 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,084 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,084 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-10-12 11:09:42,084 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-10-12 11:09:42,084 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-10-12 11:09:42,084 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-10-12 11:09:42,084 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-10-12 11:09:42,084 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-10-12 11:09:42,085 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-10-12 11:09:42,085 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-10-12 11:09:42,085 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-10-12 11:09:42,085 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-10-12 11:09:42,085 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-10-12 11:09:42,085 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-10-12 11:09:42,085 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,085 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,085 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,085 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,086 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,086 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-10-12 11:09:42,086 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,086 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-10-12 11:09:42,086 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-10-12 11:09:42,086 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-10-12 11:09:42,086 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-10-12 11:09:42,086 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-10-12 11:09:42,086 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-10-12 11:09:42,087 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-10-12 11:09:42,087 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-10-12 11:09:42,087 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-10-12 11:09:42,087 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-10-12 11:09:42,087 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-10-12 11:09:42,087 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-10-12 11:09:42,087 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-10-12 11:09:42,087 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-10-12 11:09:42,087 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,087 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,088 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,088 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,088 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,088 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:09:42,088 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-10-12 11:09:42,088 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-10-12 11:09:42,088 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-10-12 11:09:42,088 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-10-12 11:09:42,088 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-10-12 11:09:42,088 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-10-12 11:09:42,088 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-10-12 11:09:42,089 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-10-12 11:09:42,089 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-10-12 11:09:42,089 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-10-12 11:09:42,089 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-12 11:09:42,089 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 1 ~a20~0) (<= ~a16~0 5) (= ~a12~0 8) (<= ~a7~0 0) (<= ~a21~0 1) (<= 5 ~a16~0) (<= ~a8~0 15) (<= ~a20~0 ~a21~0) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-10-12 11:09:42,089 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-12 11:09:42,089 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-12 11:09:42,089 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (<= 5 |old(~a16~0)|)) (not (= |old(~a17~0)| 1)) (not (<= |old(~a8~0)| 15)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a20~0)| |old(~a21~0)|)) (and (= ~a7~0 |old(~a7~0)|) (= ~a20~0 |old(~a20~0)|) (<= ~a20~0 ~a17~0) (<= ~a17~0 ~a20~0) (= ~a16~0 |old(~a16~0)|) (<= ~a21~0 ~a20~0) (<= ~a8~0 15) (<= ~a20~0 ~a21~0) (<= 15 ~a8~0)) (not (= |old(~a21~0)| 1)) (not (<= 1 |old(~a20~0)|)) (not (= ~a12~0 8))) [2020-10-12 11:09:42,090 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-10-12 11:09:42,090 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse7 (<= 1 ~a21~0)) (.cse4 (= ~a20~0 1)) (.cse5 (<= ~a17~0 0)) (.cse2 (= ~a8~0 15)) (.cse6 (<= ~a21~0 1)) (.cse3 (= ~a7~0 1)) (.cse1 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (and (<= 2 main_~input~0) (<= main_~input~0 2)) (and (<= 6 main_~input~0) (<= main_~input~0 6)) (and (<= main_~input~0 3) (<= 3 main_~input~0)) (and (<= main_~input~0 1) (<= 1 main_~input~0)) (and (<= main_~input~0 5) (<= 5 main_~input~0)))) (.cse0 (= ~a21~0 1))) (or (not (<= 5 |old(~a16~0)|)) (not (<= |old(~a8~0)| 15)) (not (<= |old(~a7~0)| 0)) (and .cse0 (= ~a16~0 6) .cse1 .cse2 (not .cse3) (not .cse4)) (and (<= 14 ~a8~0) (<= ~a8~0 14) (<= ~a16~0 5) .cse5 .cse6 .cse7 (<= ~a7~0 1) (<= ~a20~0 0)) (and .cse3 (<= ~a16~0 4) .cse6 .cse7) (and .cse3 .cse4) (not (= |old(~a21~0)| 1)) (not (<= |old(~a17~0)| |old(~a20~0)|)) (not (<= |old(~a20~0)| 1)) (and .cse3 (<= ~a17~0 ~a20~0) .cse5 .cse2 (< ~a20~0 (+ ~a17~0 1)) .cse6 (= 5 ~a16~0) (< ~a7~0 (+ ~a21~0 1))) (not (= |old(~a17~0)| 1)) (and (= ~a20~0 0) .cse3 .cse1 (= ~a8~0 13) (= ~a16~0 4) (= ~a17~0 1)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (and .cse0 (<= ~a7~0 0)) (not (= ~a12~0 8)))) [2020-10-12 11:09:42,090 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-10-12 11:09:42,090 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-12 11:09:42,090 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse6 (<= 1 ~a21~0)) (.cse3 (= ~a20~0 1)) (.cse2 (= ~a7~0 1)) (.cse4 (<= ~a17~0 0)) (.cse1 (= ~a8~0 15)) (.cse5 (<= ~a21~0 1)) (.cse0 (= ~a21~0 1))) (or (not (<= 5 |old(~a16~0)|)) (and .cse0 (= ~a16~0 6) .cse1 (not .cse2) (not .cse3)) (and (= ~a20~0 0) .cse2 (= ~a8~0 13) (= ~a16~0 4) (= ~a17~0 1)) (not (<= |old(~a8~0)| 15)) (not (<= |old(~a7~0)| 0)) (and (<= 14 ~a8~0) (<= ~a8~0 14) (<= ~a16~0 5) .cse4 .cse5 .cse6 (<= ~a7~0 1) (<= ~a20~0 0)) (and .cse2 (<= ~a16~0 4) .cse5 .cse6) (and .cse2 .cse3) (not (= |old(~a21~0)| 1)) (not (<= |old(~a17~0)| |old(~a20~0)|)) (not (<= |old(~a20~0)| 1)) (and .cse2 (<= ~a17~0 ~a20~0) .cse4 .cse1 (< ~a20~0 (+ ~a17~0 1)) .cse5 (= 5 ~a16~0) (< ~a7~0 (+ ~a21~0 1))) (not (= |old(~a17~0)| 1)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (and .cse0 (<= ~a7~0 0)) (not (= ~a12~0 8)))) [2020-10-12 11:09:42,090 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-10-12 11:09:42,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 11:09:42 BoogieIcfgContainer [2020-10-12 11:09:42,112 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 11:09:42,114 INFO L168 Benchmark]: Toolchain (without parser) took 159557.11 ms. Allocated memory was 146.8 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 100.9 MB in the beginning and 436.2 MB in the end (delta: -335.3 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2020-10-12 11:09:42,114 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 11:09:42,115 INFO L168 Benchmark]: CACSL2BoogieTranslator took 751.56 ms. Allocated memory was 146.8 MB in the beginning and 205.5 MB in the end (delta: 58.7 MB). Free memory was 100.7 MB in the beginning and 170.6 MB in the end (delta: -69.9 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. [2020-10-12 11:09:42,115 INFO L168 Benchmark]: Boogie Preprocessor took 130.83 ms. Allocated memory is still 205.5 MB. Free memory was 170.6 MB in the beginning and 165.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-10-12 11:09:42,115 INFO L168 Benchmark]: RCFGBuilder took 1162.72 ms. Allocated memory was 205.5 MB in the beginning and 239.6 MB in the end (delta: 34.1 MB). Free memory was 165.7 MB in the beginning and 180.2 MB in the end (delta: -14.4 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. [2020-10-12 11:09:42,116 INFO L168 Benchmark]: TraceAbstraction took 157507.38 ms. Allocated memory was 239.6 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 180.2 MB in the beginning and 436.2 MB in the end (delta: -256.0 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2020-10-12 11:09:42,117 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 751.56 ms. Allocated memory was 146.8 MB in the beginning and 205.5 MB in the end (delta: 58.7 MB). Free memory was 100.7 MB in the beginning and 170.6 MB in the end (delta: -69.9 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.83 ms. Allocated memory is still 205.5 MB. Free memory was 170.6 MB in the beginning and 165.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1162.72 ms. Allocated memory was 205.5 MB in the beginning and 239.6 MB in the end (delta: 34.1 MB). Free memory was 165.7 MB in the beginning and 180.2 MB in the end (delta: -14.4 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 157507.38 ms. Allocated memory was 239.6 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 180.2 MB in the beginning and 436.2 MB in the end (delta: -256.0 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 551]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((((((((!(5 <= \old(a16)) || ((((a21 == 1 && a16 == 6) && a8 == 15) && !(a7 == 1)) && !(a20 == 1))) || ((((a20 == 0 && a7 == 1) && a8 == 13) && a16 == 4) && a17 == 1)) || !(\old(a8) <= 15)) || !(\old(a7) <= 0)) || (((((((14 <= a8 && a8 <= 14) && a16 <= 5) && a17 <= 0) && a21 <= 1) && 1 <= a21) && a7 <= 1) && a20 <= 0)) || (((a7 == 1 && a16 <= 4) && a21 <= 1) && 1 <= a21)) || (a7 == 1 && a20 == 1)) || !(\old(a21) == 1)) || !(\old(a17) <= \old(a20))) || !(\old(a20) <= 1)) || (((((((a7 == 1 && a17 <= a20) && a17 <= 0) && a8 == 15) && a20 < a17 + 1) && a21 <= 1) && 5 == a16) && a7 < a21 + 1)) || !(\old(a17) == 1)) || !(\old(a16) <= 5)) || !(15 <= \old(a8))) || (a21 == 1 && a7 <= 0)) || !(a12 == 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 152.6s, OverallIterations: 22, TraceHistogramMax: 6, AutomataDifference: 59.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 607 SDtfs, 10057 SDslu, 1012 SDs, 0 SdLazy, 20735 SolverSat, 2202 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 669 GetRequests, 257 SyntacticMatches, 11 SemanticMatches, 401 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2151 ImplicationChecksByTransitivity, 47.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2758occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 22 MinimizatonAttempts, 1229 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 271 PreInvPairs, 341 NumberOfFragments, 954 HoareAnnotationTreeSize, 271 FomulaSimplifications, 69586 FormulaSimplificationTreeSizeReduction, 1.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 13519 FormulaSimplificationTreeSizeReductionInter, 3.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 87.7s InterpolantComputationTime, 4708 NumberOfCodeBlocks, 4708 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 4686 ConstructedInterpolants, 0 QuantifiedInterpolants, 11456112 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 1 PerfectInterpolantSequences, 2771/3191 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...