/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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/Problem11_label45.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 21:02:32,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 21:02:32,399 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 21:02:32,442 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 21:02:32,442 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 21:02:32,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 21:02:32,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 21:02:32,456 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 21:02:32,459 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 21:02:32,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 21:02:32,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 21:02:32,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 21:02:32,464 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 21:02:32,467 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 21:02:32,470 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 21:02:32,471 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 21:02:32,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 21:02:32,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 21:02:32,476 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 21:02:32,485 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 21:02:32,488 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 21:02:32,489 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 21:02:32,490 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 21:02:32,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 21:02:32,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 21:02:32,503 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 21:02:32,503 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 21:02:32,504 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 21:02:32,509 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 21:02:32,510 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 21:02:32,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 21:02:32,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 21:02:32,517 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 21:02:32,518 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 21:02:32,519 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 21:02:32,519 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 21:02:32,520 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 21:02:32,520 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 21:02:32,520 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 21:02:32,521 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 21:02:32,522 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 21:02:32,523 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 [2020-10-14 21:02:32,565 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 21:02:32,566 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 21:02:32,568 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 21:02:32,569 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 21:02:32,569 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 21:02:32,569 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 21:02:32,570 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 21:02:32,570 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 21:02:32,570 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 21:02:32,570 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 21:02:32,571 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 21:02:32,572 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 21:02:32,572 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 21:02:32,572 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 21:02:32,572 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 21:02:32,573 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 21:02:32,573 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 21:02:32,573 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 21:02:32,573 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 21:02:32,573 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 21:02:32,574 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 21:02:32,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 21:02:32,574 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 21:02:32,574 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 21:02:32,574 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 21:02:32,575 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 21:02:32,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 21:02:32,575 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 21:02:32,575 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 21:02:32,575 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 21:02:32,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 21:02:32,941 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 21:02:32,944 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 21:02:32,946 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 21:02:32,946 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 21:02:32,946 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label45.c [2020-10-14 21:02:33,009 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e8eaa38bd/085c38c6c69b4764b0d53094a899673f/FLAGe7f783c59 [2020-10-14 21:02:33,619 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 21:02:33,620 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem11_label45.c [2020-10-14 21:02:33,636 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e8eaa38bd/085c38c6c69b4764b0d53094a899673f/FLAGe7f783c59 [2020-10-14 21:02:33,878 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e8eaa38bd/085c38c6c69b4764b0d53094a899673f [2020-10-14 21:02:33,887 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 21:02:33,888 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 21:02:33,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 21:02:33,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 21:02:33,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 21:02:33,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:02:33" (1/1) ... [2020-10-14 21:02:33,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71155234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:02:33, skipping insertion in model container [2020-10-14 21:02:33,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:02:33" (1/1) ... [2020-10-14 21:02:33,907 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 21:02:33,973 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 21:02:34,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 21:02:34,595 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 21:02:34,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 21:02:34,897 INFO L208 MainTranslator]: Completed translation [2020-10-14 21:02:34,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:02:34 WrapperNode [2020-10-14 21:02:34,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 21:02:34,900 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 21:02:34,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 21:02:34,901 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 21:02:34,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:02:34" (1/1) ... [2020-10-14 21:02:34,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:02:34" (1/1) ... [2020-10-14 21:02:34,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:02:34" (1/1) ... [2020-10-14 21:02:34,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:02:34" (1/1) ... [2020-10-14 21:02:35,055 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:02:34" (1/1) ... [2020-10-14 21:02:35,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:02:34" (1/1) ... [2020-10-14 21:02:35,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:02:34" (1/1) ... [2020-10-14 21:02:35,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 21:02:35,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 21:02:35,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 21:02:35,099 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 21:02:35,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:02:34" (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 [2020-10-14 21:02:35,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 21:02:35,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 21:02:35,193 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 21:02:35,193 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 21:02:35,193 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 21:02:35,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 21:02:35,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 21:02:35,194 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 21:02:35,194 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 21:02:35,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 21:02:35,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 21:02:37,040 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 21:02:37,041 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 21:02:37,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:02:37 BoogieIcfgContainer [2020-10-14 21:02:37,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 21:02:37,050 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 21:02:37,050 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 21:02:37,053 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 21:02:37,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 09:02:33" (1/3) ... [2020-10-14 21:02:37,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad028c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:02:37, skipping insertion in model container [2020-10-14 21:02:37,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:02:34" (2/3) ... [2020-10-14 21:02:37,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad028c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:02:37, skipping insertion in model container [2020-10-14 21:02:37,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:02:37" (3/3) ... [2020-10-14 21:02:37,058 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem11_label45.c [2020-10-14 21:02:37,069 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 21:02:37,077 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 21:02:37,092 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 21:02:37,120 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 21:02:37,121 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 21:02:37,121 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 21:02:37,121 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 21:02:37,121 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 21:02:37,121 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 21:02:37,122 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 21:02:37,122 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 21:02:37,147 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states. [2020-10-14 21:02:37,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-14 21:02:37,156 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:02:37,157 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] [2020-10-14 21:02:37,157 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:02:37,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:02:37,164 INFO L82 PathProgramCache]: Analyzing trace with hash 489926403, now seen corresponding path program 1 times [2020-10-14 21:02:37,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:02:37,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2088206467] [2020-10-14 21:02:37,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:02:37,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:37,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:37,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:37,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-14 21:02:37,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:37,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 374 [2020-10-14 21:02:37,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:37,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:37,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:02:37,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:02:37,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-14 21:02:37,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 21:02:37,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:02:37,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:37,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:37,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:37,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:02:37,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:37,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 21:02:37,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:37,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:37,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:02:37,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:37,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:02:37,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:02:37,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 21:02:37,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2088206467] [2020-10-14 21:02:37,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 21:02:37,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 21:02:37,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373798766] [2020-10-14 21:02:37,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 21:02:37,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:02:37,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 21:02:37,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 21:02:37,935 INFO L87 Difference]: Start difference. First operand 292 states. Second operand 4 states. [2020-10-14 21:02:40,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:02:40,471 INFO L93 Difference]: Finished difference Result 788 states and 1382 transitions. [2020-10-14 21:02:40,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 21:02:40,474 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2020-10-14 21:02:40,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:02:40,508 INFO L225 Difference]: With dead ends: 788 [2020-10-14 21:02:40,508 INFO L226 Difference]: Without dead ends: 431 [2020-10-14 21:02:40,520 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 21:02:40,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2020-10-14 21:02:40,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 425. [2020-10-14 21:02:40,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2020-10-14 21:02:40,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 612 transitions. [2020-10-14 21:02:40,596 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 612 transitions. Word has length 38 [2020-10-14 21:02:40,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:02:40,597 INFO L479 AbstractCegarLoop]: Abstraction has 425 states and 612 transitions. [2020-10-14 21:02:40,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 21:02:40,597 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 612 transitions. [2020-10-14 21:02:40,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-14 21:02:40,603 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:02:40,603 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2020-10-14 21:02:40,604 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 21:02:40,604 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:02:40,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:02:40,604 INFO L82 PathProgramCache]: Analyzing trace with hash -754081118, now seen corresponding path program 1 times [2020-10-14 21:02:40,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:02:40,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1370655153] [2020-10-14 21:02:40,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:02:40,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:40,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:40,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:41,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:42,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:42,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 21:02:42,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:02:42,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1754 [2020-10-14 21:02:42,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:42,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:42,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:02:42,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:02:42,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 21:02:42,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 21:02:42,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:02:42,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:42,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:42,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:42,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:02:42,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:42,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 21:02:42,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:42,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:42,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:02:42,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:42,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:02:42,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:02:42,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:02:42,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:42,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:42,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:42,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 21:02:42,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:42,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-14 21:02:42,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:42,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:42,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:02:42,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:02:42,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 21:02:42,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:02:42,837 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 21:02:42,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1370655153] [2020-10-14 21:02:42,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 21:02:42,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 21:02:42,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203009122] [2020-10-14 21:02:42,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:02:42,840 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:02:42,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:02:42,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:02:42,841 INFO L87 Difference]: Start difference. First operand 425 states and 612 transitions. Second operand 7 states. [2020-10-14 21:02:45,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:02:45,297 INFO L93 Difference]: Finished difference Result 1264 states and 1838 transitions. [2020-10-14 21:02:45,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 21:02:45,298 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 110 [2020-10-14 21:02:45,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:02:45,305 INFO L225 Difference]: With dead ends: 1264 [2020-10-14 21:02:45,305 INFO L226 Difference]: Without dead ends: 845 [2020-10-14 21:02:45,308 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 21:02:45,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2020-10-14 21:02:45,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 821. [2020-10-14 21:02:45,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 821 states. [2020-10-14 21:02:45,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1103 transitions. [2020-10-14 21:02:45,361 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1103 transitions. Word has length 110 [2020-10-14 21:02:45,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:02:45,362 INFO L479 AbstractCegarLoop]: Abstraction has 821 states and 1103 transitions. [2020-10-14 21:02:45,362 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:02:45,362 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1103 transitions. [2020-10-14 21:02:45,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-14 21:02:45,366 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:02:45,367 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2020-10-14 21:02:45,367 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 21:02:45,367 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:02:45,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:02:45,368 INFO L82 PathProgramCache]: Analyzing trace with hash -393002478, now seen corresponding path program 1 times [2020-10-14 21:02:45,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:02:45,368 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2067599863] [2020-10-14 21:02:45,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:02:45,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:45,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:45,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:46,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:46,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:46,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:46,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 21:02:46,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:02:46,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1389 [2020-10-14 21:02:46,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:46,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:46,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 21:02:46,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:02:46,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-14 21:02:46,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:02:46,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:02:46,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:46,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:46,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:46,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:02:46,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:46,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:02:46,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:46,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:46,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:02:46,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:46,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:02:46,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 21:02:46,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:02:46,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:46,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:47,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:47,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:47,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 21:02:47,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:02:47,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-10-14 21:02:47,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:47,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:47,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:02:47,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:02:47,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 21:02:47,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:02:47,502 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 21:02:47,502 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2067599863] [2020-10-14 21:02:47,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:02:47,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 21:02:47,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832553972] [2020-10-14 21:02:47,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 21:02:47,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:02:47,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 21:02:47,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 21:02:47,504 INFO L87 Difference]: Start difference. First operand 821 states and 1103 transitions. Second operand 6 states. [2020-10-14 21:02:49,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:02:49,540 INFO L93 Difference]: Finished difference Result 2043 states and 2708 transitions. [2020-10-14 21:02:49,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 21:02:49,547 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 118 [2020-10-14 21:02:49,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:02:49,554 INFO L225 Difference]: With dead ends: 2043 [2020-10-14 21:02:49,554 INFO L226 Difference]: Without dead ends: 1228 [2020-10-14 21:02:49,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:02:49,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1228 states. [2020-10-14 21:02:49,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1228 to 1215. [2020-10-14 21:02:49,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1215 states. [2020-10-14 21:02:49,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 1537 transitions. [2020-10-14 21:02:49,600 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 1537 transitions. Word has length 118 [2020-10-14 21:02:49,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:02:49,600 INFO L479 AbstractCegarLoop]: Abstraction has 1215 states and 1537 transitions. [2020-10-14 21:02:49,600 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 21:02:49,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 1537 transitions. [2020-10-14 21:02:49,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-14 21:02:49,607 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:02:49,608 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1] [2020-10-14 21:02:49,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 21:02:49,608 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:02:49,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:02:49,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1482668308, now seen corresponding path program 1 times [2020-10-14 21:02:49,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:02:49,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [624964188] [2020-10-14 21:02:49,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:02:49,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:49,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:50,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:50,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-14 21:02:50,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:50,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 392 [2020-10-14 21:02:50,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:50,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:50,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:02:50,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 21:02:50,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-14 21:02:50,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:02:50,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:02:50,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:50,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:50,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:50,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:02:50,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:50,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:02:50,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:50,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:50,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:02:50,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:50,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:02:50,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:02:50,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:02:50,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:50,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:50,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:50,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:02:50,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:50,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-14 21:02:50,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:50,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:50,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:02:50,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:50,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 21:02:50,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:02:50,359 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 21:02:50,360 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [624964188] [2020-10-14 21:02:50,360 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:02:50,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 21:02:50,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691669107] [2020-10-14 21:02:50,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 21:02:50,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:02:50,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 21:02:50,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 21:02:50,362 INFO L87 Difference]: Start difference. First operand 1215 states and 1537 transitions. Second operand 5 states. [2020-10-14 21:02:52,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:02:52,458 INFO L93 Difference]: Finished difference Result 2458 states and 3299 transitions. [2020-10-14 21:02:52,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 21:02:52,459 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 169 [2020-10-14 21:02:52,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:02:52,470 INFO L225 Difference]: With dead ends: 2458 [2020-10-14 21:02:52,470 INFO L226 Difference]: Without dead ends: 1627 [2020-10-14 21:02:52,473 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 21:02:52,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2020-10-14 21:02:52,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1611. [2020-10-14 21:02:52,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1611 states. [2020-10-14 21:02:52,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1611 states to 1611 states and 2090 transitions. [2020-10-14 21:02:52,536 INFO L78 Accepts]: Start accepts. Automaton has 1611 states and 2090 transitions. Word has length 169 [2020-10-14 21:02:52,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:02:52,539 INFO L479 AbstractCegarLoop]: Abstraction has 1611 states and 2090 transitions. [2020-10-14 21:02:52,539 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 21:02:52,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1611 states and 2090 transitions. [2020-10-14 21:02:52,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-10-14 21:02:52,547 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:02:52,548 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 21:02:52,548 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 21:02:52,548 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:02:52,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:02:52,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1525637989, now seen corresponding path program 1 times [2020-10-14 21:02:52,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:02:52,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2010191944] [2020-10-14 21:02:52,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:02:52,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:52,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:52,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:53,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:54,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:54,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-10-14 21:02:54,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:02:54,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1729 [2020-10-14 21:02:54,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:54,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:54,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:02:54,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-14 21:02:54,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 21:02:54,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:02:54,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:02:54,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:54,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:54,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:54,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:02:54,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:54,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 21:02:54,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:54,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:54,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:02:54,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:54,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:02:54,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:02:54,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:02:54,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:54,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:54,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:54,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 21:02:54,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:54,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-14 21:02:54,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:54,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:54,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:02:54,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:54,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 21:02:54,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:02:54,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 21:02:54,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:54,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:54,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:54,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 21:02:54,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:54,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-14 21:02:54,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:54,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:54,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:02:54,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:02:54,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 21:02:54,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:02:54,882 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 131 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 21:02:54,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2010191944] [2020-10-14 21:02:54,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:02:54,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:02:54,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691101740] [2020-10-14 21:02:54,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:02:54,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:02:54,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:02:54,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:02:54,887 INFO L87 Difference]: Start difference. First operand 1611 states and 2090 transitions. Second operand 8 states. [2020-10-14 21:02:57,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:02:57,128 INFO L93 Difference]: Finished difference Result 3252 states and 4361 transitions. [2020-10-14 21:02:57,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 21:02:57,129 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 226 [2020-10-14 21:02:57,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:02:57,142 INFO L225 Difference]: With dead ends: 3252 [2020-10-14 21:02:57,142 INFO L226 Difference]: Without dead ends: 2025 [2020-10-14 21:02:57,147 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-14 21:02:57,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2025 states. [2020-10-14 21:02:57,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2025 to 2006. [2020-10-14 21:02:57,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2006 states. [2020-10-14 21:02:57,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2006 states to 2006 states and 2607 transitions. [2020-10-14 21:02:57,217 INFO L78 Accepts]: Start accepts. Automaton has 2006 states and 2607 transitions. Word has length 226 [2020-10-14 21:02:57,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:02:57,218 INFO L479 AbstractCegarLoop]: Abstraction has 2006 states and 2607 transitions. [2020-10-14 21:02:57,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:02:57,218 INFO L276 IsEmpty]: Start isEmpty. Operand 2006 states and 2607 transitions. [2020-10-14 21:02:57,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-10-14 21:02:57,222 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:02:57,222 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 21:02:57,222 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 21:02:57,223 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:02:57,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:02:57,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1017984548, now seen corresponding path program 1 times [2020-10-14 21:02:57,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:02:57,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1949417070] [2020-10-14 21:02:57,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:02:57,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:57,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:57,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:57,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:59,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:59,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-10-14 21:02:59,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:02:59,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2330 [2020-10-14 21:02:59,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:59,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:59,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 21:02:59,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:02:59,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 209 [2020-10-14 21:02:59,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:02:59,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:02:59,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:59,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:59,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:59,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:02:59,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:59,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 21:02:59,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:59,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:59,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:02:59,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:59,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:02:59,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:02:59,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:02:59,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:59,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:59,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:59,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 21:02:59,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:59,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-10-14 21:02:59,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:59,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:59,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:02:59,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:02:59,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 21:02:59,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:03:00,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 21:03:00,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:00,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:00,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:00,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 21:03:00,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:03:00,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-10-14 21:03:00,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:00,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:00,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:03:00,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:03:00,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 21:03:00,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:03:00,669 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 48 proven. 17 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-14 21:03:00,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1949417070] [2020-10-14 21:03:00,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:03:00,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:03:00,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314306402] [2020-10-14 21:03:00,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:03:00,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:03:00,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:03:00,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:03:00,673 INFO L87 Difference]: Start difference. First operand 2006 states and 2607 transitions. Second operand 8 states. [2020-10-14 21:03:03,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:03:03,562 INFO L93 Difference]: Finished difference Result 2921 states and 3974 transitions. [2020-10-14 21:03:03,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:03:03,571 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 227 [2020-10-14 21:03:03,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:03:03,581 INFO L225 Difference]: With dead ends: 2921 [2020-10-14 21:03:03,581 INFO L226 Difference]: Without dead ends: 2073 [2020-10-14 21:03:03,585 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:03:03,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2073 states. [2020-10-14 21:03:03,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2073 to 2018. [2020-10-14 21:03:03,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2018 states. [2020-10-14 21:03:03,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2018 states to 2018 states and 2618 transitions. [2020-10-14 21:03:03,651 INFO L78 Accepts]: Start accepts. Automaton has 2018 states and 2618 transitions. Word has length 227 [2020-10-14 21:03:03,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:03:03,652 INFO L479 AbstractCegarLoop]: Abstraction has 2018 states and 2618 transitions. [2020-10-14 21:03:03,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:03:03,652 INFO L276 IsEmpty]: Start isEmpty. Operand 2018 states and 2618 transitions. [2020-10-14 21:03:03,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-10-14 21:03:03,660 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:03:03,660 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 21:03:03,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 21:03:03,661 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:03:03,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:03:03,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1045636663, now seen corresponding path program 1 times [2020-10-14 21:03:03,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:03:03,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [451231940] [2020-10-14 21:03:03,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:03:03,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:03,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:03,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:04,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:05,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:05,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 21:03:05,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:03:05,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1602 [2020-10-14 21:03:05,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:05,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:05,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:03:05,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-14 21:03:05,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 21:03:05,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:03:05,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:03:05,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:05,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:05,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:05,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:03:05,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:03:05,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 21:03:05,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:05,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:05,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:03:05,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:03:05,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:03:05,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:03:05,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:03:05,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:05,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:05,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:05,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 21:03:05,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:03:05,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 21:03:05,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:05,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:05,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:03:05,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:03:05,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 21:03:05,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:03:05,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 21:03:05,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:05,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:05,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:05,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 21:03:05,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:03:05,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-14 21:03:05,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:05,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:05,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:03:05,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:03:05,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 21:03:05,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:03:05,929 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 133 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 21:03:05,930 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [451231940] [2020-10-14 21:03:05,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:03:05,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:03:05,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640926782] [2020-10-14 21:03:05,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:03:05,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:03:05,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:03:05,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:03:05,932 INFO L87 Difference]: Start difference. First operand 2018 states and 2618 transitions. Second operand 7 states. [2020-10-14 21:03:08,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:03:08,826 INFO L93 Difference]: Finished difference Result 4090 states and 5455 transitions. [2020-10-14 21:03:08,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 21:03:08,829 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 228 [2020-10-14 21:03:08,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:03:08,842 INFO L225 Difference]: With dead ends: 4090 [2020-10-14 21:03:08,842 INFO L226 Difference]: Without dead ends: 2456 [2020-10-14 21:03:08,848 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 21:03:08,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2456 states. [2020-10-14 21:03:08,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2456 to 2418. [2020-10-14 21:03:08,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2418 states. [2020-10-14 21:03:08,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2418 states to 2418 states and 3124 transitions. [2020-10-14 21:03:08,921 INFO L78 Accepts]: Start accepts. Automaton has 2418 states and 3124 transitions. Word has length 228 [2020-10-14 21:03:08,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:03:08,922 INFO L479 AbstractCegarLoop]: Abstraction has 2418 states and 3124 transitions. [2020-10-14 21:03:08,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:03:08,922 INFO L276 IsEmpty]: Start isEmpty. Operand 2418 states and 3124 transitions. [2020-10-14 21:03:08,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-10-14 21:03:08,926 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:03:08,927 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 21:03:08,927 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 21:03:08,927 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:03:08,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:03:08,928 INFO L82 PathProgramCache]: Analyzing trace with hash 866250307, now seen corresponding path program 1 times [2020-10-14 21:03:08,928 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:03:08,928 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [68745451] [2020-10-14 21:03:08,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:03:08,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:09,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:09,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:09,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:09,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 21:03:09,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:03:09,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 815 [2020-10-14 21:03:09,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:09,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:09,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:03:09,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-14 21:03:09,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 21:03:09,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:03:09,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:03:09,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:09,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:09,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:09,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:03:09,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:03:09,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:03:09,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:09,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:09,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:03:09,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:03:09,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:03:09,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:03:09,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:03:09,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:09,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:09,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:09,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 21:03:09,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:03:09,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 21:03:09,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:09,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:09,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:03:09,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:03:09,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:03:09,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:03:10,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 21:03:10,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:10,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:10,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:10,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 21:03:10,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:03:10,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 21:03:10,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:10,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:10,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:03:10,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:03:10,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 21:03:10,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:03:10,213 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-10-14 21:03:10,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [68745451] [2020-10-14 21:03:10,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:03:10,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 21:03:10,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41544683] [2020-10-14 21:03:10,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 21:03:10,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:03:10,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 21:03:10,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 21:03:10,216 INFO L87 Difference]: Start difference. First operand 2418 states and 3124 transitions. Second operand 6 states. [2020-10-14 21:03:13,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:03:13,104 INFO L93 Difference]: Finished difference Result 4878 states and 6509 transitions. [2020-10-14 21:03:13,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 21:03:13,105 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 238 [2020-10-14 21:03:13,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:03:13,117 INFO L225 Difference]: With dead ends: 4878 [2020-10-14 21:03:13,118 INFO L226 Difference]: Without dead ends: 2844 [2020-10-14 21:03:13,123 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:03:13,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2020-10-14 21:03:13,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 2812. [2020-10-14 21:03:13,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2812 states. [2020-10-14 21:03:13,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2812 states to 2812 states and 3722 transitions. [2020-10-14 21:03:13,188 INFO L78 Accepts]: Start accepts. Automaton has 2812 states and 3722 transitions. Word has length 238 [2020-10-14 21:03:13,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:03:13,189 INFO L479 AbstractCegarLoop]: Abstraction has 2812 states and 3722 transitions. [2020-10-14 21:03:13,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 21:03:13,189 INFO L276 IsEmpty]: Start isEmpty. Operand 2812 states and 3722 transitions. [2020-10-14 21:03:13,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-10-14 21:03:13,194 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:03:13,195 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 21:03:13,195 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 21:03:13,195 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:03:13,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:03:13,196 INFO L82 PathProgramCache]: Analyzing trace with hash 145620123, now seen corresponding path program 1 times [2020-10-14 21:03:13,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:03:13,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1530466336] [2020-10-14 21:03:13,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:03:13,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:13,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:13,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:14,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:14,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-10-14 21:03:14,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:03:14,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1443 [2020-10-14 21:03:14,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:14,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:14,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 21:03:14,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:03:14,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 264 [2020-10-14 21:03:14,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:03:14,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:03:14,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:14,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:14,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:14,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:03:14,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:03:14,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 21:03:14,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:14,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:14,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:03:14,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:03:14,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:03:14,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:03:14,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:03:14,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:14,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:15,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:15,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 21:03:15,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:03:15,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-14 21:03:15,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:15,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:15,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:03:15,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:03:15,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 21:03:15,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 21:03:15,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 21:03:15,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:15,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:15,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:15,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 21:03:15,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:03:15,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-14 21:03:15,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:15,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:15,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:03:15,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:03:15,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 21:03:15,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:03:15,555 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 58 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-10-14 21:03:15,560 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1530466336] [2020-10-14 21:03:15,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:03:15,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:03:15,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28556571] [2020-10-14 21:03:15,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:03:15,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:03:15,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:03:15,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:03:15,563 INFO L87 Difference]: Start difference. First operand 2812 states and 3722 transitions. Second operand 8 states. [2020-10-14 21:03:19,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:03:19,387 INFO L93 Difference]: Finished difference Result 6577 states and 10501 transitions. [2020-10-14 21:03:19,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 21:03:19,388 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 258 [2020-10-14 21:03:19,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:03:19,417 INFO L225 Difference]: With dead ends: 6577 [2020-10-14 21:03:19,418 INFO L226 Difference]: Without dead ends: 5315 [2020-10-14 21:03:19,426 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-14 21:03:19,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5315 states. [2020-10-14 21:03:19,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5315 to 5024. [2020-10-14 21:03:19,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5024 states. [2020-10-14 21:03:19,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5024 states to 5024 states and 7037 transitions. [2020-10-14 21:03:19,588 INFO L78 Accepts]: Start accepts. Automaton has 5024 states and 7037 transitions. Word has length 258 [2020-10-14 21:03:19,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:03:19,588 INFO L479 AbstractCegarLoop]: Abstraction has 5024 states and 7037 transitions. [2020-10-14 21:03:19,589 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:03:19,589 INFO L276 IsEmpty]: Start isEmpty. Operand 5024 states and 7037 transitions. [2020-10-14 21:03:19,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-10-14 21:03:19,597 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:03:19,597 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 21:03:19,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 21:03:19,597 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:03:19,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:03:19,598 INFO L82 PathProgramCache]: Analyzing trace with hash 525362704, now seen corresponding path program 1 times [2020-10-14 21:03:19,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:03:19,598 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [468834343] [2020-10-14 21:03:19,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:03:19,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:19,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:19,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:20,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:20,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 284 [2020-10-14 21:03:20,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:03:20,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1064 [2020-10-14 21:03:20,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:20,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:20,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:03:20,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 21:03:20,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 21:03:20,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:03:20,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:03:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:20,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:20,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:20,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:03:20,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:03:20,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:03:20,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:20,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:20,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:03:20,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:03:20,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:03:20,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:03:20,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:03:20,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:20,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:20,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:20,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:03:20,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:03:20,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-14 21:03:20,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:20,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:20,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:03:20,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:03:20,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 21:03:20,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:03:20,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 21:03:21,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:21,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:21,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:21,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-14 21:03:21,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:03:21,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-14 21:03:21,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:21,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:21,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:03:21,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:03:21,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 21:03:21,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:03:21,356 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 162 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 21:03:21,357 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [468834343] [2020-10-14 21:03:21,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:03:21,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:03:21,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351224758] [2020-10-14 21:03:21,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:03:21,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:03:21,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:03:21,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:03:21,359 INFO L87 Difference]: Start difference. First operand 5024 states and 7037 transitions. Second operand 7 states. [2020-10-14 21:03:24,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:03:24,450 INFO L93 Difference]: Finished difference Result 12904 states and 20033 transitions. [2020-10-14 21:03:24,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:03:24,451 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 272 [2020-10-14 21:03:24,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:03:24,514 INFO L225 Difference]: With dead ends: 12904 [2020-10-14 21:03:24,514 INFO L226 Difference]: Without dead ends: 8264 [2020-10-14 21:03:24,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:03:24,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8264 states. [2020-10-14 21:03:24,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8264 to 8170. [2020-10-14 21:03:24,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8170 states. [2020-10-14 21:03:24,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8170 states to 8170 states and 11768 transitions. [2020-10-14 21:03:24,795 INFO L78 Accepts]: Start accepts. Automaton has 8170 states and 11768 transitions. Word has length 272 [2020-10-14 21:03:24,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:03:24,796 INFO L479 AbstractCegarLoop]: Abstraction has 8170 states and 11768 transitions. [2020-10-14 21:03:24,796 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:03:24,796 INFO L276 IsEmpty]: Start isEmpty. Operand 8170 states and 11768 transitions. [2020-10-14 21:03:24,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-10-14 21:03:24,809 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:03:24,810 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:03:24,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 21:03:24,810 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:03:24,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:03:24,811 INFO L82 PathProgramCache]: Analyzing trace with hash 540650201, now seen corresponding path program 1 times [2020-10-14 21:03:24,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:03:24,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1608777893] [2020-10-14 21:03:24,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:03:24,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:24,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:25,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:25,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:25,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:27,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:28,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:29,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:29,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 323 [2020-10-14 21:03:29,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 21:03:29,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-14 21:03:29,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:29,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:29,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 21:03:29,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:03:29,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 281 [2020-10-14 21:03:29,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:03:29,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:03:29,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:29,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:30,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:30,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:03:30,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:03:30,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 21:03:30,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:30,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:30,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:03:30,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:03:30,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:03:30,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:03:30,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:03:30,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:30,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:30,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:30,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:30,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 21:03:30,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:03:30,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-14 21:03:30,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:30,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:30,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:03:30,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:03:30,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 21:03:30,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:03:30,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 21:03:30,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:30,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:30,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:30,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:30,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 21:03:30,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:03:30,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 21:03:30,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:30,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:30,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:03:30,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:03:30,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 21:03:30,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:03:30,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 21:03:30,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:30,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:30,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:30,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 21:03:30,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:03:30,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-14 21:03:30,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:30,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:30,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:03:30,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:03:30,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 21:03:30,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:03:30,575 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 223 proven. 4 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2020-10-14 21:03:30,575 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1608777893] [2020-10-14 21:03:30,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:03:30,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:03:30,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940522438] [2020-10-14 21:03:30,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:03:30,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:03:30,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:03:30,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:03:30,581 INFO L87 Difference]: Start difference. First operand 8170 states and 11768 transitions. Second operand 7 states. [2020-10-14 21:03:33,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:03:33,248 INFO L93 Difference]: Finished difference Result 19274 states and 29462 transitions. [2020-10-14 21:03:33,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 21:03:33,249 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 309 [2020-10-14 21:03:33,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:03:33,295 INFO L225 Difference]: With dead ends: 19274 [2020-10-14 21:03:33,296 INFO L226 Difference]: Without dead ends: 11102 [2020-10-14 21:03:33,323 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:03:33,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11102 states. [2020-10-14 21:03:33,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11102 to 10638. [2020-10-14 21:03:33,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10638 states. [2020-10-14 21:03:33,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10638 states to 10638 states and 14141 transitions. [2020-10-14 21:03:33,695 INFO L78 Accepts]: Start accepts. Automaton has 10638 states and 14141 transitions. Word has length 309 [2020-10-14 21:03:33,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:03:33,696 INFO L479 AbstractCegarLoop]: Abstraction has 10638 states and 14141 transitions. [2020-10-14 21:03:33,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:03:33,696 INFO L276 IsEmpty]: Start isEmpty. Operand 10638 states and 14141 transitions. [2020-10-14 21:03:33,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-10-14 21:03:33,713 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:03:33,714 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:03:33,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 21:03:33,714 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:03:33,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:03:33,715 INFO L82 PathProgramCache]: Analyzing trace with hash 175710805, now seen corresponding path program 1 times [2020-10-14 21:03:33,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:03:33,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2033981003] [2020-10-14 21:03:33,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:03:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:33,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:33,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:34,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:35,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:36,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:36,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 341 [2020-10-14 21:03:36,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:03:36,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2829 [2020-10-14 21:03:36,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:36,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:36,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:03:36,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-14 21:03:36,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 21:03:36,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:03:36,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:03:36,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:36,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:36,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:36,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:03:36,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:03:36,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:03:36,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:36,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:36,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:03:36,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:03:36,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:03:36,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:03:36,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:03:36,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:36,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:36,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:36,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 21:03:36,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:03:36,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 21:03:36,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:36,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:36,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:03:36,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:03:36,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:03:36,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:03:36,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 21:03:36,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:36,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:36,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:36,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 21:03:36,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:03:36,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 21:03:36,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:36,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:36,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:03:36,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:03:36,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 21:03:36,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:03:36,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 21:03:36,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:36,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:36,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:37,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:37,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 21:03:37,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:03:37,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-14 21:03:37,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:37,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:37,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:03:37,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:03:37,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 21:03:37,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:03:37,138 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 231 proven. 32 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-14 21:03:37,138 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2033981003] [2020-10-14 21:03:37,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:03:37,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:03:37,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926903483] [2020-10-14 21:03:37,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:03:37,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:03:37,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:03:37,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:03:37,140 INFO L87 Difference]: Start difference. First operand 10638 states and 14141 transitions. Second operand 7 states. [2020-10-14 21:03:41,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:03:41,141 INFO L93 Difference]: Finished difference Result 23533 states and 31729 transitions. [2020-10-14 21:03:41,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:03:41,142 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 327 [2020-10-14 21:03:41,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:03:41,191 INFO L225 Difference]: With dead ends: 23533 [2020-10-14 21:03:41,191 INFO L226 Difference]: Without dead ends: 14073 [2020-10-14 21:03:41,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:03:41,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14073 states. [2020-10-14 21:03:41,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14073 to 12369. [2020-10-14 21:03:41,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12369 states. [2020-10-14 21:03:41,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12369 states to 12369 states and 16179 transitions. [2020-10-14 21:03:41,519 INFO L78 Accepts]: Start accepts. Automaton has 12369 states and 16179 transitions. Word has length 327 [2020-10-14 21:03:41,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:03:41,519 INFO L479 AbstractCegarLoop]: Abstraction has 12369 states and 16179 transitions. [2020-10-14 21:03:41,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:03:41,520 INFO L276 IsEmpty]: Start isEmpty. Operand 12369 states and 16179 transitions. [2020-10-14 21:03:41,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-10-14 21:03:41,536 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:03:41,537 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:03:41,537 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 21:03:41,537 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:03:41,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:03:41,538 INFO L82 PathProgramCache]: Analyzing trace with hash -718080491, now seen corresponding path program 1 times [2020-10-14 21:03:41,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:03:41,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [952066275] [2020-10-14 21:03:41,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:03:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:41,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:41,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:41,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:41,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:43,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:46,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:46,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 341 [2020-10-14 21:03:46,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 21:03:46,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 21:03:46,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:46,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:46,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:03:46,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-14 21:03:46,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 21:03:46,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:03:46,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:03:46,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:46,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:46,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:46,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:03:46,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:03:46,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:03:46,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:46,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:46,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:03:46,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:03:46,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:03:46,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:03:46,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:03:46,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:46,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:46,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:46,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 21:03:46,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:03:46,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 21:03:46,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:46,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:46,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:03:46,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:03:46,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:03:46,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:03:46,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 21:03:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:46,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:46,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:46,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 21:03:46,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:03:46,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 21:03:46,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:46,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:46,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:03:46,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:03:46,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 21:03:46,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:03:46,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 21:03:46,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:46,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:46,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:47,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:47,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 21:03:47,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:03:47,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-14 21:03:47,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:47,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:47,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:03:47,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:03:47,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 21:03:47,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:03:47,137 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 221 proven. 32 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-10-14 21:03:47,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [952066275] [2020-10-14 21:03:47,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:03:47,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 21:03:47,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657720942] [2020-10-14 21:03:47,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 21:03:47,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:03:47,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 21:03:47,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-14 21:03:47,139 INFO L87 Difference]: Start difference. First operand 12369 states and 16179 transitions. Second operand 6 states. [2020-10-14 21:03:49,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:03:49,942 INFO L93 Difference]: Finished difference Result 24850 states and 33892 transitions. [2020-10-14 21:03:49,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 21:03:49,942 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 327 [2020-10-14 21:03:49,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:03:49,995 INFO L225 Difference]: With dead ends: 24850 [2020-10-14 21:03:49,995 INFO L226 Difference]: Without dead ends: 14047 [2020-10-14 21:03:50,021 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:03:50,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14047 states. [2020-10-14 21:03:50,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14047 to 12739. [2020-10-14 21:03:50,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12739 states. [2020-10-14 21:03:50,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12739 states to 12739 states and 16362 transitions. [2020-10-14 21:03:50,363 INFO L78 Accepts]: Start accepts. Automaton has 12739 states and 16362 transitions. Word has length 327 [2020-10-14 21:03:50,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:03:50,364 INFO L479 AbstractCegarLoop]: Abstraction has 12739 states and 16362 transitions. [2020-10-14 21:03:50,364 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 21:03:50,364 INFO L276 IsEmpty]: Start isEmpty. Operand 12739 states and 16362 transitions. [2020-10-14 21:03:50,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2020-10-14 21:03:50,378 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:03:50,378 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:03:50,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 21:03:50,379 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:03:50,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:03:50,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1086646743, now seen corresponding path program 1 times [2020-10-14 21:03:50,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:03:50,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1229281162] [2020-10-14 21:03:50,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:03:50,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:50,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:50,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:50,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:51,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:54,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:54,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 342 [2020-10-14 21:03:54,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:03:54,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3950 [2020-10-14 21:03:54,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:54,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:54,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:03:54,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 21:03:54,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 21:03:54,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:03:54,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:03:54,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:54,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:54,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:54,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:03:54,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:03:54,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:03:54,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:54,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:54,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:03:54,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:03:54,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:03:54,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:03:54,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:03:54,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:54,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:54,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:54,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:03:54,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:03:54,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 21:03:54,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:54,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:54,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:03:54,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:03:54,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:03:54,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:03:54,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 21:03:54,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:54,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:54,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:54,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 21:03:54,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:03:54,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 21:03:54,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:54,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:54,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:03:54,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:03:54,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 21:03:54,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:03:54,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-14 21:03:54,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:54,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:54,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:54,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:54,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 21:03:54,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:03:54,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 21:03:54,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:54,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:54,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:03:54,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:03:54,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 21:03:54,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:03:54,862 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 99 proven. 3 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-14 21:03:54,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1229281162] [2020-10-14 21:03:54,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:03:54,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 21:03:54,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447980121] [2020-10-14 21:03:54,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 21:03:54,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:03:54,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 21:03:54,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 21:03:54,865 INFO L87 Difference]: Start difference. First operand 12739 states and 16362 transitions. Second operand 5 states. [2020-10-14 21:03:56,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:03:56,774 INFO L93 Difference]: Finished difference Result 15209 states and 19627 transitions. [2020-10-14 21:03:56,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 21:03:56,774 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 328 [2020-10-14 21:03:56,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:03:56,818 INFO L225 Difference]: With dead ends: 15209 [2020-10-14 21:03:56,818 INFO L226 Difference]: Without dead ends: 15207 [2020-10-14 21:03:56,826 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 21:03:56,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15207 states. [2020-10-14 21:03:57,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15207 to 15199. [2020-10-14 21:03:57,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15199 states. [2020-10-14 21:03:57,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15199 states to 15199 states and 19614 transitions. [2020-10-14 21:03:57,168 INFO L78 Accepts]: Start accepts. Automaton has 15199 states and 19614 transitions. Word has length 328 [2020-10-14 21:03:57,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:03:57,169 INFO L479 AbstractCegarLoop]: Abstraction has 15199 states and 19614 transitions. [2020-10-14 21:03:57,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 21:03:57,169 INFO L276 IsEmpty]: Start isEmpty. Operand 15199 states and 19614 transitions. [2020-10-14 21:03:57,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-10-14 21:03:57,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:03:57,190 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 21:03:57,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 21:03:57,190 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:03:57,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:03:57,191 INFO L82 PathProgramCache]: Analyzing trace with hash -595331838, now seen corresponding path program 1 times [2020-10-14 21:03:57,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:03:57,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1462394919] [2020-10-14 21:03:57,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:03:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:57,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:57,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:58,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:58,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 347 [2020-10-14 21:03:58,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:03:58,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1432 [2020-10-14 21:03:58,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:58,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:58,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:03:58,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 21:03:58,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 21:03:58,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:03:58,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:03:58,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:58,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:58,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:58,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:03:58,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:03:58,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:03:58,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:58,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:58,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:03:58,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:03:58,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:03:58,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:03:58,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:03:58,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:58,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:58,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:58,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:03:58,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:03:58,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 21:03:58,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:58,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:58,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:03:58,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:03:58,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:03:58,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:03:58,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 21:03:58,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:58,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:58,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:58,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 21:03:58,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:03:58,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 21:03:58,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:58,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:58,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:03:58,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:03:58,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 21:03:58,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:03:58,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-14 21:03:58,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:58,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:59,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:59,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 21:03:59,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:03:59,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 21:03:59,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:59,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:59,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:03:59,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:03:59,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 21:03:59,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:03:59,162 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 256 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-14 21:03:59,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1462394919] [2020-10-14 21:03:59,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:03:59,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:03:59,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033451584] [2020-10-14 21:03:59,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:03:59,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:03:59,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:03:59,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:03:59,164 INFO L87 Difference]: Start difference. First operand 15199 states and 19614 transitions. Second operand 7 states. [2020-10-14 21:04:01,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:04:01,764 INFO L93 Difference]: Finished difference Result 30994 states and 40111 transitions. [2020-10-14 21:04:01,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:04:01,766 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 333 [2020-10-14 21:04:01,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:04:01,820 INFO L225 Difference]: With dead ends: 30994 [2020-10-14 21:04:01,820 INFO L226 Difference]: Without dead ends: 16179 [2020-10-14 21:04:01,842 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:04:01,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16179 states. [2020-10-14 21:04:02,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16179 to 15977. [2020-10-14 21:04:02,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15977 states. [2020-10-14 21:04:02,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15977 states to 15977 states and 20512 transitions. [2020-10-14 21:04:02,176 INFO L78 Accepts]: Start accepts. Automaton has 15977 states and 20512 transitions. Word has length 333 [2020-10-14 21:04:02,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:04:02,177 INFO L479 AbstractCegarLoop]: Abstraction has 15977 states and 20512 transitions. [2020-10-14 21:04:02,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:04:02,177 INFO L276 IsEmpty]: Start isEmpty. Operand 15977 states and 20512 transitions. [2020-10-14 21:04:02,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2020-10-14 21:04:02,192 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:04:02,192 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:04:02,193 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 21:04:02,193 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:04:02,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:04:02,193 INFO L82 PathProgramCache]: Analyzing trace with hash 2023930543, now seen corresponding path program 1 times [2020-10-14 21:04:02,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:04:02,195 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1925585606] [2020-10-14 21:04:02,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:04:02,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:02,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:02,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:04,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:04,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 358 [2020-10-14 21:04:04,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:04:04,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1846 [2020-10-14 21:04:04,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:04,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:04,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:04:04,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 21:04:04,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 21:04:04,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:04,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:04:04,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:04,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:04,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:04,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:04:04,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:04,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:04:04,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:04,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:04,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:04:04,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:04,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:04:04,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:04,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:04:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:04,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:04,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:04,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:04:04,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:04,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 21:04:04,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:04,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:04,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:04:04,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:04,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 21:04:04,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:04,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 21:04:04,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:04,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:04,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:04,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:04:04,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:04,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 21:04:04,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:04,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:04,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:04:04,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:04:04,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 21:04:04,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:04,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-14 21:04:04,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:04,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:04,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:04,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 21:04:04,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:04,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 21:04:04,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:04,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:04,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:04:04,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-14 21:04:04,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:04:04,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:04,540 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 175 proven. 80 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-10-14 21:04:04,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1925585606] [2020-10-14 21:04:04,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:04:04,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:04:04,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806676258] [2020-10-14 21:04:04,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:04:04,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:04:04,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:04:04,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:04:04,542 INFO L87 Difference]: Start difference. First operand 15977 states and 20512 transitions. Second operand 7 states. [2020-10-14 21:04:07,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:04:07,012 INFO L93 Difference]: Finished difference Result 32017 states and 41117 transitions. [2020-10-14 21:04:07,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:04:07,012 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 344 [2020-10-14 21:04:07,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:04:07,055 INFO L225 Difference]: With dead ends: 32017 [2020-10-14 21:04:07,056 INFO L226 Difference]: Without dead ends: 16424 [2020-10-14 21:04:07,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:04:07,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16424 states. [2020-10-14 21:04:07,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16424 to 16213. [2020-10-14 21:04:07,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16213 states. [2020-10-14 21:04:07,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16213 states to 16213 states and 20565 transitions. [2020-10-14 21:04:07,516 INFO L78 Accepts]: Start accepts. Automaton has 16213 states and 20565 transitions. Word has length 344 [2020-10-14 21:04:07,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:04:07,517 INFO L479 AbstractCegarLoop]: Abstraction has 16213 states and 20565 transitions. [2020-10-14 21:04:07,517 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:04:07,517 INFO L276 IsEmpty]: Start isEmpty. Operand 16213 states and 20565 transitions. [2020-10-14 21:04:07,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2020-10-14 21:04:07,536 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:04:07,536 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 21:04:07,537 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 21:04:07,537 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:04:07,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:04:07,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1466353770, now seen corresponding path program 1 times [2020-10-14 21:04:07,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:04:07,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [921134432] [2020-10-14 21:04:07,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:04:07,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:07,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:07,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:09,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:09,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 356 [2020-10-14 21:04:09,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:04:09,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1452 [2020-10-14 21:04:09,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:09,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:09,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 21:04:09,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:04:09,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 350 [2020-10-14 21:04:09,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:09,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:04:09,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:09,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:09,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:09,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:04:09,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:09,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:04:09,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:09,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:09,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:04:09,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:09,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:04:09,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:09,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:04:09,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:09,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:09,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:09,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:04:09,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:09,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-14 21:04:09,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:09,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:09,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:04:09,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:04:09,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 21:04:09,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:09,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 21:04:09,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:09,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:09,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:09,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 21:04:09,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:09,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-14 21:04:09,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:09,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:09,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:04:09,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:04:09,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-14 21:04:09,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:09,856 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 7 proven. 61 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-10-14 21:04:09,856 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [921134432] [2020-10-14 21:04:09,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:04:09,857 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 21:04:09,857 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86014714] [2020-10-14 21:04:09,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 21:04:09,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:04:09,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 21:04:09,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-14 21:04:09,858 INFO L87 Difference]: Start difference. First operand 16213 states and 20565 transitions. Second operand 10 states. [2020-10-14 21:04:15,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:04:15,622 INFO L93 Difference]: Finished difference Result 26229 states and 34101 transitions. [2020-10-14 21:04:15,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 21:04:15,623 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 344 [2020-10-14 21:04:15,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:04:15,686 INFO L225 Difference]: With dead ends: 26229 [2020-10-14 21:04:15,687 INFO L226 Difference]: Without dead ends: 26227 [2020-10-14 21:04:15,701 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2020-10-14 21:04:15,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26227 states. [2020-10-14 21:04:16,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26227 to 25734. [2020-10-14 21:04:16,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25734 states. [2020-10-14 21:04:16,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25734 states to 25734 states and 33020 transitions. [2020-10-14 21:04:16,265 INFO L78 Accepts]: Start accepts. Automaton has 25734 states and 33020 transitions. Word has length 344 [2020-10-14 21:04:16,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:04:16,266 INFO L479 AbstractCegarLoop]: Abstraction has 25734 states and 33020 transitions. [2020-10-14 21:04:16,266 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 21:04:16,266 INFO L276 IsEmpty]: Start isEmpty. Operand 25734 states and 33020 transitions. [2020-10-14 21:04:16,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2020-10-14 21:04:16,287 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:04:16,290 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:04:16,290 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 21:04:16,290 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:04:16,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:04:16,291 INFO L82 PathProgramCache]: Analyzing trace with hash -403388293, now seen corresponding path program 1 times [2020-10-14 21:04:16,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:04:16,291 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [834146869] [2020-10-14 21:04:16,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:04:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:16,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:16,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:17,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:17,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 381 [2020-10-14 21:04:17,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:04:17,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1292 [2020-10-14 21:04:17,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:17,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:17,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:04:17,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 247 [2020-10-14 21:04:17,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 21:04:17,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:17,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:04:17,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:17,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:17,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:17,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:04:17,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:17,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 21:04:17,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:17,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:17,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:04:17,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:17,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:04:17,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:17,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:04:17,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:17,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:17,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:17,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 21:04:17,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:17,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 21:04:17,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:17,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:17,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:04:17,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:17,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:04:17,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:17,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 21:04:17,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:17,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:17,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:17,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:04:17,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:17,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 21:04:17,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:17,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:17,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:04:17,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:17,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 21:04:17,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:17,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2020-10-14 21:04:17,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:17,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:18,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:18,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 21:04:18,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:18,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 21:04:18,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:18,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:18,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:04:18,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:04:18,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 21:04:18,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:18,301 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 280 proven. 2 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2020-10-14 21:04:18,302 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [834146869] [2020-10-14 21:04:18,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:04:18,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:04:18,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955252528] [2020-10-14 21:04:18,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:04:18,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:04:18,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:04:18,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:04:18,304 INFO L87 Difference]: Start difference. First operand 25734 states and 33020 transitions. Second operand 7 states. [2020-10-14 21:04:21,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:04:21,207 INFO L93 Difference]: Finished difference Result 53823 states and 69036 transitions. [2020-10-14 21:04:21,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 21:04:21,208 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 367 [2020-10-14 21:04:21,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:04:21,263 INFO L225 Difference]: With dead ends: 53823 [2020-10-14 21:04:21,263 INFO L226 Difference]: Without dead ends: 27507 [2020-10-14 21:04:21,293 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 21:04:21,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27507 states. [2020-10-14 21:04:21,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27507 to 25548. [2020-10-14 21:04:21,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25548 states. [2020-10-14 21:04:21,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25548 states to 25548 states and 32246 transitions. [2020-10-14 21:04:21,942 INFO L78 Accepts]: Start accepts. Automaton has 25548 states and 32246 transitions. Word has length 367 [2020-10-14 21:04:21,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:04:21,942 INFO L479 AbstractCegarLoop]: Abstraction has 25548 states and 32246 transitions. [2020-10-14 21:04:21,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:04:21,942 INFO L276 IsEmpty]: Start isEmpty. Operand 25548 states and 32246 transitions. [2020-10-14 21:04:21,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2020-10-14 21:04:21,961 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:04:21,961 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:04:21,961 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 21:04:21,962 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:04:21,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:04:21,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1795130055, now seen corresponding path program 1 times [2020-10-14 21:04:21,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:04:21,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1507881825] [2020-10-14 21:04:21,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:04:22,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:22,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:22,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:23,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:23,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 382 [2020-10-14 21:04:23,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:04:23,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1175 [2020-10-14 21:04:23,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:23,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:23,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:04:23,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-10-14 21:04:23,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 21:04:23,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:23,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:04:23,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:23,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:23,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:23,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:04:23,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:23,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:04:23,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:23,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:23,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:04:23,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:23,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:04:23,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:23,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:04:23,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:23,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:23,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:23,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 21:04:23,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:23,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 21:04:23,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:23,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:23,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:04:23,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:23,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:04:23,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:23,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 21:04:23,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:23,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:23,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:23,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:04:23,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:23,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 21:04:23,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:23,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:23,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:04:23,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:23,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 21:04:23,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:23,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-10-14 21:04:23,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:23,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:23,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:23,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 21:04:23,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:23,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-14 21:04:23,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:23,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:23,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:04:23,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:04:23,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 21:04:23,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:23,738 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 280 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2020-10-14 21:04:23,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1507881825] [2020-10-14 21:04:23,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:04:23,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:04:23,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703509470] [2020-10-14 21:04:23,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:04:23,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:04:23,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:04:23,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:04:23,740 INFO L87 Difference]: Start difference. First operand 25548 states and 32246 transitions. Second operand 7 states. [2020-10-14 21:04:27,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:04:27,421 INFO L93 Difference]: Finished difference Result 49568 states and 62753 transitions. [2020-10-14 21:04:27,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 21:04:27,422 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 368 [2020-10-14 21:04:27,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:04:27,466 INFO L225 Difference]: With dead ends: 49568 [2020-10-14 21:04:27,466 INFO L226 Difference]: Without dead ends: 26360 [2020-10-14 21:04:27,494 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 21:04:27,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26360 states. [2020-10-14 21:04:27,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26360 to 26116. [2020-10-14 21:04:27,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26116 states. [2020-10-14 21:04:27,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26116 states to 26116 states and 32866 transitions. [2020-10-14 21:04:27,940 INFO L78 Accepts]: Start accepts. Automaton has 26116 states and 32866 transitions. Word has length 368 [2020-10-14 21:04:27,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:04:27,941 INFO L479 AbstractCegarLoop]: Abstraction has 26116 states and 32866 transitions. [2020-10-14 21:04:27,941 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:04:27,941 INFO L276 IsEmpty]: Start isEmpty. Operand 26116 states and 32866 transitions. [2020-10-14 21:04:27,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2020-10-14 21:04:27,958 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:04:27,958 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:04:27,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 21:04:27,959 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:04:27,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:04:27,959 INFO L82 PathProgramCache]: Analyzing trace with hash -13000465, now seen corresponding path program 1 times [2020-10-14 21:04:27,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:04:27,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [779833790] [2020-10-14 21:04:27,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:04:28,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:28,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:28,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:29,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:29,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 385 [2020-10-14 21:04:29,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:04:29,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1062 [2020-10-14 21:04:29,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:29,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:29,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:04:29,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 251 [2020-10-14 21:04:29,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 21:04:29,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:29,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:04:29,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:29,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:29,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:29,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:04:29,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:29,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:04:29,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:29,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:29,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:04:29,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:29,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:04:29,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:29,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:04:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:29,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:29,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:29,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:04:29,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:29,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 21:04:29,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:29,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:29,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:04:29,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:29,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:04:29,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:29,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 21:04:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:29,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:29,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:29,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-14 21:04:29,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:29,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 21:04:29,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:29,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:29,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:04:29,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:29,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 21:04:29,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:29,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 21:04:29,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:29,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:29,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:29,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 21:04:29,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:29,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 21:04:29,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:29,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:29,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:04:29,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:04:29,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 21:04:29,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:29,621 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 280 proven. 2 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2020-10-14 21:04:29,621 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [779833790] [2020-10-14 21:04:29,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:04:29,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:04:29,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000839993] [2020-10-14 21:04:29,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:04:29,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:04:29,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:04:29,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:04:29,622 INFO L87 Difference]: Start difference. First operand 26116 states and 32866 transitions. Second operand 7 states. [2020-10-14 21:04:32,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:04:32,686 INFO L93 Difference]: Finished difference Result 52295 states and 65773 transitions. [2020-10-14 21:04:32,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:04:32,687 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 371 [2020-10-14 21:04:32,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:04:32,728 INFO L225 Difference]: With dead ends: 52295 [2020-10-14 21:04:32,728 INFO L226 Difference]: Without dead ends: 25785 [2020-10-14 21:04:32,747 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 21:04:32,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25785 states. [2020-10-14 21:04:33,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25785 to 24208. [2020-10-14 21:04:33,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24208 states. [2020-10-14 21:04:33,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24208 states to 24208 states and 30042 transitions. [2020-10-14 21:04:33,079 INFO L78 Accepts]: Start accepts. Automaton has 24208 states and 30042 transitions. Word has length 371 [2020-10-14 21:04:33,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:04:33,079 INFO L479 AbstractCegarLoop]: Abstraction has 24208 states and 30042 transitions. [2020-10-14 21:04:33,079 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:04:33,079 INFO L276 IsEmpty]: Start isEmpty. Operand 24208 states and 30042 transitions. [2020-10-14 21:04:33,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2020-10-14 21:04:33,094 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:04:33,096 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:04:33,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 21:04:33,098 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:04:33,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:04:33,099 INFO L82 PathProgramCache]: Analyzing trace with hash -951567919, now seen corresponding path program 1 times [2020-10-14 21:04:33,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:04:33,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [642116744] [2020-10-14 21:04:33,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:04:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:33,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:33,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:33,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:34,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:35,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:35,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 390 [2020-10-14 21:04:35,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:04:35,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2605 [2020-10-14 21:04:35,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:35,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:35,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 21:04:35,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 21:04:35,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 213 [2020-10-14 21:04:35,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:35,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:04:35,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:35,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:35,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:35,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:04:35,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:35,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:04:35,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:35,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:35,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:04:35,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:35,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:04:35,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:04:35,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:04:35,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:35,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:35,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:35,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:04:35,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:35,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 21:04:35,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:35,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:35,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:04:35,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:35,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 21:04:35,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:36,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 21:04:36,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:36,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:36,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:36,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:36,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 21:04:36,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:04:36,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-14 21:04:36,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:36,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:36,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 21:04:36,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:36,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 21:04:36,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:36,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2020-10-14 21:04:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:36,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:36,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:36,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 21:04:36,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:36,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 21:04:36,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:36,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:36,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:04:36,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:04:36,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 21:04:36,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:36,625 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 281 proven. 4 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2020-10-14 21:04:36,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [642116744] [2020-10-14 21:04:36,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:04:36,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 21:04:36,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461935056] [2020-10-14 21:04:36,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 21:04:36,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:04:36,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 21:04:36,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-14 21:04:36,627 INFO L87 Difference]: Start difference. First operand 24208 states and 30042 transitions. Second operand 10 states. [2020-10-14 21:04:42,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:04:42,394 INFO L93 Difference]: Finished difference Result 56961 states and 70351 transitions. [2020-10-14 21:04:42,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 21:04:42,396 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 376 [2020-10-14 21:04:42,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:04:42,454 INFO L225 Difference]: With dead ends: 56961 [2020-10-14 21:04:42,454 INFO L226 Difference]: Without dead ends: 33137 [2020-10-14 21:04:42,482 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-10-14 21:04:42,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33137 states. [2020-10-14 21:04:42,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33137 to 31172. [2020-10-14 21:04:42,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31172 states. [2020-10-14 21:04:42,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31172 states to 31172 states and 36988 transitions. [2020-10-14 21:04:42,957 INFO L78 Accepts]: Start accepts. Automaton has 31172 states and 36988 transitions. Word has length 376 [2020-10-14 21:04:42,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:04:42,958 INFO L479 AbstractCegarLoop]: Abstraction has 31172 states and 36988 transitions. [2020-10-14 21:04:42,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 21:04:42,958 INFO L276 IsEmpty]: Start isEmpty. Operand 31172 states and 36988 transitions. [2020-10-14 21:04:42,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2020-10-14 21:04:42,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:04:42,973 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:04:42,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 21:04:42,974 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:04:42,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:04:42,974 INFO L82 PathProgramCache]: Analyzing trace with hash 2104023892, now seen corresponding path program 1 times [2020-10-14 21:04:42,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:04:42,976 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [656407932] [2020-10-14 21:04:42,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:04:43,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:43,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:43,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:43,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:47,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:47,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 419 [2020-10-14 21:04:47,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:04:47,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4063 [2020-10-14 21:04:47,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:47,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:47,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:04:47,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-10-14 21:04:47,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-14 21:04:47,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:47,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:04:47,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:47,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:47,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:47,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:04:47,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:47,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:04:47,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:47,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:47,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:04:47,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:47,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:04:47,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:47,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:04:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:47,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:47,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:47,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 21:04:47,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:47,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 21:04:47,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:47,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:47,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:04:47,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:47,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:04:47,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:47,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 21:04:47,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:47,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:47,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:47,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:04:47,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:47,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 21:04:47,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:47,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:47,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:04:47,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:47,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 21:04:47,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:47,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-10-14 21:04:47,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:47,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:47,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:47,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:04:47,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:47,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-14 21:04:47,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:47,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:47,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:04:47,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:04:47,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 21:04:47,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:47,676 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 328 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2020-10-14 21:04:47,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [656407932] [2020-10-14 21:04:47,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:04:47,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:04:47,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119765737] [2020-10-14 21:04:47,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:04:47,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:04:47,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:04:47,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:04:47,678 INFO L87 Difference]: Start difference. First operand 31172 states and 36988 transitions. Second operand 7 states. [2020-10-14 21:04:50,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:04:50,828 INFO L93 Difference]: Finished difference Result 62282 states and 73914 transitions. [2020-10-14 21:04:50,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 21:04:50,830 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 405 [2020-10-14 21:04:50,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:04:50,882 INFO L225 Difference]: With dead ends: 62282 [2020-10-14 21:04:50,882 INFO L226 Difference]: Without dead ends: 31304 [2020-10-14 21:04:50,911 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 21:04:50,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31304 states. [2020-10-14 21:04:51,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31304 to 31222. [2020-10-14 21:04:51,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31222 states. [2020-10-14 21:04:51,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31222 states to 31222 states and 36601 transitions. [2020-10-14 21:04:51,244 INFO L78 Accepts]: Start accepts. Automaton has 31222 states and 36601 transitions. Word has length 405 [2020-10-14 21:04:51,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:04:51,244 INFO L479 AbstractCegarLoop]: Abstraction has 31222 states and 36601 transitions. [2020-10-14 21:04:51,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:04:51,244 INFO L276 IsEmpty]: Start isEmpty. Operand 31222 states and 36601 transitions. [2020-10-14 21:04:51,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2020-10-14 21:04:51,254 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:04:51,254 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:04:51,255 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 21:04:51,255 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:04:51,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:04:51,255 INFO L82 PathProgramCache]: Analyzing trace with hash -927861204, now seen corresponding path program 1 times [2020-10-14 21:04:51,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:04:51,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1726283194] [2020-10-14 21:04:51,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:04:51,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:51,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:51,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:52,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:53,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:53,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 422 [2020-10-14 21:04:53,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:04:53,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2523 [2020-10-14 21:04:53,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:53,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:53,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:04:53,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 21:04:53,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 21:04:53,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:53,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:04:53,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:53,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:53,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:53,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:04:53,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:53,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:04:53,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:53,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:53,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:04:53,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:53,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:04:53,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:53,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:04:53,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:53,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:53,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:54,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:04:54,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:54,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 21:04:54,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:54,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:54,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:04:54,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:54,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 21:04:54,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:54,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 21:04:54,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:54,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:54,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:54,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-14 21:04:54,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:54,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 21:04:54,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:54,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:54,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:04:54,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:04:54,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-14 21:04:54,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:54,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 21:04:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:54,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:54,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:54,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:04:54,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:54,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 21:04:54,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:54,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:54,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:04:54,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-10-14 21:04:54,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:04:54,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:54,328 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 202 proven. 107 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2020-10-14 21:04:54,328 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1726283194] [2020-10-14 21:04:54,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:04:54,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:04:54,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108446889] [2020-10-14 21:04:54,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:04:54,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:04:54,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:04:54,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:04:54,331 INFO L87 Difference]: Start difference. First operand 31222 states and 36601 transitions. Second operand 7 states. [2020-10-14 21:04:57,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:04:57,873 INFO L93 Difference]: Finished difference Result 59756 states and 70232 transitions. [2020-10-14 21:04:57,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:04:57,874 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 408 [2020-10-14 21:04:57,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:04:57,935 INFO L225 Difference]: With dead ends: 59756 [2020-10-14 21:04:57,935 INFO L226 Difference]: Without dead ends: 28918 [2020-10-14 21:04:57,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:04:57,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28918 states. [2020-10-14 21:04:58,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28918 to 27342. [2020-10-14 21:04:58,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27342 states. [2020-10-14 21:04:58,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27342 states to 27342 states and 31678 transitions. [2020-10-14 21:04:58,500 INFO L78 Accepts]: Start accepts. Automaton has 27342 states and 31678 transitions. Word has length 408 [2020-10-14 21:04:58,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:04:58,501 INFO L479 AbstractCegarLoop]: Abstraction has 27342 states and 31678 transitions. [2020-10-14 21:04:58,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:04:58,501 INFO L276 IsEmpty]: Start isEmpty. Operand 27342 states and 31678 transitions. [2020-10-14 21:04:58,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2020-10-14 21:04:58,512 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:04:58,512 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 21:04:58,512 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-14 21:04:58,512 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:04:58,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:04:58,513 INFO L82 PathProgramCache]: Analyzing trace with hash -429342593, now seen corresponding path program 1 times [2020-10-14 21:04:58,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:04:58,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1959561063] [2020-10-14 21:04:58,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:04:58,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:58,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:58,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:03,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:03,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 472 [2020-10-14 21:05:03,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:05:03,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 21:05:03,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:03,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:03,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 21:05:03,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:05:03,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 297 [2020-10-14 21:05:03,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:03,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:05:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:03,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:03,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:03,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:05:03,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:03,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 21:05:03,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:03,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:03,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:05:03,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:03,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:05:03,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:03,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:05:03,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:03,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:03,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:03,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 21:05:03,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:03,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-14 21:05:03,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:03,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:03,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:05:03,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:05:03,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 21:05:03,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:03,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 21:05:03,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:03,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:03,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:03,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 21:05:03,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:03,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 21:05:03,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:03,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:03,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:05:03,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:05:03,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 21:05:03,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:03,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-14 21:05:03,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:03,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:04,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:04,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 21:05:04,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:04,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 21:05:04,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:04,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:04,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:05:04,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:05:04,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 21:05:04,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:04,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2020-10-14 21:05:04,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:04,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:04,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:04,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:05:04,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:04,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 21:05:04,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:04,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:04,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:05:04,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-10-14 21:05:04,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:05:04,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:04,324 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 141 proven. 278 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2020-10-14 21:05:04,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1959561063] [2020-10-14 21:05:04,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:05:04,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 21:05:04,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505661295] [2020-10-14 21:05:04,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 21:05:04,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:05:04,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 21:05:04,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-14 21:05:04,326 INFO L87 Difference]: Start difference. First operand 27342 states and 31678 transitions. Second operand 9 states. [2020-10-14 21:05:09,503 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-10-14 21:05:10,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:05:10,337 INFO L93 Difference]: Finished difference Result 55837 states and 65859 transitions. [2020-10-14 21:05:10,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 21:05:10,338 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 456 [2020-10-14 21:05:10,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:05:10,398 INFO L225 Difference]: With dead ends: 55837 [2020-10-14 21:05:10,398 INFO L226 Difference]: Without dead ends: 31019 [2020-10-14 21:05:10,423 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2020-10-14 21:05:10,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31019 states. [2020-10-14 21:05:10,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31019 to 28508. [2020-10-14 21:05:10,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28508 states. [2020-10-14 21:05:10,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28508 states to 28508 states and 33045 transitions. [2020-10-14 21:05:10,777 INFO L78 Accepts]: Start accepts. Automaton has 28508 states and 33045 transitions. Word has length 456 [2020-10-14 21:05:10,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:05:10,778 INFO L479 AbstractCegarLoop]: Abstraction has 28508 states and 33045 transitions. [2020-10-14 21:05:10,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 21:05:10,778 INFO L276 IsEmpty]: Start isEmpty. Operand 28508 states and 33045 transitions. [2020-10-14 21:05:10,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2020-10-14 21:05:10,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:05:10,796 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:05:10,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-14 21:05:10,797 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:05:10,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:05:10,797 INFO L82 PathProgramCache]: Analyzing trace with hash 2032737552, now seen corresponding path program 1 times [2020-10-14 21:05:10,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:05:10,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1697486090] [2020-10-14 21:05:10,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:05:10,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:10,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:11,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:11,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:12,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:13,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:13,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 515 [2020-10-14 21:05:13,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:05:13,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2500 [2020-10-14 21:05:13,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:13,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:13,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 21:05:13,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 21:05:13,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-14 21:05:13,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:13,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:05:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:13,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:13,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:13,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:05:13,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:13,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:05:13,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:13,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:13,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:05:13,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:13,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:05:13,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:05:13,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:05:13,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:13,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:13,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:13,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 21:05:13,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:13,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 21:05:13,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:13,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:13,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:05:13,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:13,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:05:13,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:05:13,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 21:05:13,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:13,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:13,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:13,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:05:13,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:13,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 21:05:13,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:13,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:13,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:05:13,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:13,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-14 21:05:13,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:13,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 21:05:13,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:13,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:13,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:13,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:13,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 21:05:13,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:05:13,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-14 21:05:13,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:13,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:13,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:05:13,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:05:13,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-14 21:05:13,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:14,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2020-10-14 21:05:14,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:14,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:14,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:14,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 21:05:14,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:14,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-10-14 21:05:14,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:14,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:14,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:05:14,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:05:14,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 21:05:14,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:14,758 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 485 proven. 64 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2020-10-14 21:05:14,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1697486090] [2020-10-14 21:05:14,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:05:14,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 21:05:14,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080012852] [2020-10-14 21:05:14,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 21:05:14,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:05:14,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 21:05:14,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-14 21:05:14,761 INFO L87 Difference]: Start difference. First operand 28508 states and 33045 transitions. Second operand 9 states. [2020-10-14 21:05:19,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:05:19,630 INFO L93 Difference]: Finished difference Result 61841 states and 72145 transitions. [2020-10-14 21:05:19,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 21:05:19,631 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 499 [2020-10-14 21:05:19,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:05:19,686 INFO L225 Difference]: With dead ends: 61841 [2020-10-14 21:05:19,686 INFO L226 Difference]: Without dead ends: 33143 [2020-10-14 21:05:19,714 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-14 21:05:19,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33143 states. [2020-10-14 21:05:20,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33143 to 31730. [2020-10-14 21:05:20,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31730 states. [2020-10-14 21:05:20,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31730 states to 31730 states and 36191 transitions. [2020-10-14 21:05:20,074 INFO L78 Accepts]: Start accepts. Automaton has 31730 states and 36191 transitions. Word has length 499 [2020-10-14 21:05:20,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:05:20,074 INFO L479 AbstractCegarLoop]: Abstraction has 31730 states and 36191 transitions. [2020-10-14 21:05:20,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 21:05:20,075 INFO L276 IsEmpty]: Start isEmpty. Operand 31730 states and 36191 transitions. [2020-10-14 21:05:20,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2020-10-14 21:05:20,092 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:05:20,092 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 21:05:20,093 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-14 21:05:20,093 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:05:20,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:05:20,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1383885554, now seen corresponding path program 1 times [2020-10-14 21:05:20,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:05:20,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [574322490] [2020-10-14 21:05:20,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:05:20,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:20,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:20,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:21,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:21,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 522 [2020-10-14 21:05:21,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:05:21,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1203 [2020-10-14 21:05:21,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:21,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:21,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:05:21,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 388 [2020-10-14 21:05:21,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 21:05:21,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:05:21,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:05:21,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:21,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:21,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:21,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:05:21,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:21,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:05:21,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:21,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:21,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:05:21,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:21,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:05:21,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:21,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:05:21,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:21,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:21,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:21,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:05:21,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:21,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 21:05:21,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:21,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:21,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:05:21,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:21,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:05:21,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:21,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 21:05:21,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:21,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:21,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:21,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 21:05:21,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:21,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 21:05:21,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:21,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:21,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:05:21,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:21,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:05:21,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:21,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2020-10-14 21:05:21,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:21,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:21,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:21,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 21:05:21,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:21,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 21:05:21,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:21,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:21,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:05:21,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:21,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-14 21:05:21,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:21,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2020-10-14 21:05:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:21,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:21,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:21,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 21:05:21,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:21,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 21:05:21,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:21,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:21,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:05:21,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:05:21,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 21:05:21,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:22,124 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 407 proven. 2 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2020-10-14 21:05:22,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [574322490] [2020-10-14 21:05:22,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:05:22,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:05:22,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724431022] [2020-10-14 21:05:22,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:05:22,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:05:22,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:05:22,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:05:22,126 INFO L87 Difference]: Start difference. First operand 31730 states and 36191 transitions. Second operand 7 states. [2020-10-14 21:05:26,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:05:26,029 INFO L93 Difference]: Finished difference Result 61398 states and 70091 transitions. [2020-10-14 21:05:26,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:05:26,030 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 506 [2020-10-14 21:05:26,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:05:26,081 INFO L225 Difference]: With dead ends: 61398 [2020-10-14 21:05:26,081 INFO L226 Difference]: Without dead ends: 32192 [2020-10-14 21:05:26,106 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 21:05:26,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32192 states. [2020-10-14 21:05:26,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32192 to 31544. [2020-10-14 21:05:26,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31544 states. [2020-10-14 21:05:26,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31544 states to 31544 states and 35980 transitions. [2020-10-14 21:05:26,441 INFO L78 Accepts]: Start accepts. Automaton has 31544 states and 35980 transitions. Word has length 506 [2020-10-14 21:05:26,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:05:26,441 INFO L479 AbstractCegarLoop]: Abstraction has 31544 states and 35980 transitions. [2020-10-14 21:05:26,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:05:26,441 INFO L276 IsEmpty]: Start isEmpty. Operand 31544 states and 35980 transitions. [2020-10-14 21:05:26,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2020-10-14 21:05:26,454 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:05:26,455 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 21:05:26,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-14 21:05:26,455 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:05:26,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:05:26,455 INFO L82 PathProgramCache]: Analyzing trace with hash -140483832, now seen corresponding path program 1 times [2020-10-14 21:05:26,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:05:26,456 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1227271789] [2020-10-14 21:05:26,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:05:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:26,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:26,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:26,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:29,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:31,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:31,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 526 [2020-10-14 21:05:31,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:05:31,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-14 21:05:31,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:31,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:31,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:05:31,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-14 21:05:31,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-14 21:05:31,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:31,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:05:31,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:31,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:31,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:31,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:05:31,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:31,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:05:31,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:31,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:31,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:05:31,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:31,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:05:31,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:05:31,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:05:31,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:31,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:31,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:31,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 21:05:31,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:31,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 21:05:31,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:31,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:31,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:05:31,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:31,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-14 21:05:31,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:31,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 21:05:31,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:31,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:32,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:32,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 21:05:32,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:32,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-14 21:05:32,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:32,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:32,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:05:32,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:05:32,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 21:05:32,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:05:32,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2020-10-14 21:05:32,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:32,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:32,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:32,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 21:05:32,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:32,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 21:05:32,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:32,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:32,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:05:32,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 21:05:32,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:05:32,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:32,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2020-10-14 21:05:32,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:32,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:32,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:32,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 21:05:32,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:32,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 21:05:32,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:32,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:32,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:05:32,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-14 21:05:32,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:05:32,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:05:32,625 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 255 proven. 177 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2020-10-14 21:05:32,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1227271789] [2020-10-14 21:05:32,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:05:32,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:05:32,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697362036] [2020-10-14 21:05:32,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:05:32,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:05:32,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:05:32,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:05:32,627 INFO L87 Difference]: Start difference. First operand 31544 states and 35980 transitions. Second operand 7 states. [2020-10-14 21:05:36,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:05:36,761 INFO L93 Difference]: Finished difference Result 68341 states and 77749 transitions. [2020-10-14 21:05:36,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:05:36,762 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 510 [2020-10-14 21:05:36,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:05:36,819 INFO L225 Difference]: With dead ends: 68341 [2020-10-14 21:05:36,819 INFO L226 Difference]: Without dead ends: 36993 [2020-10-14 21:05:36,850 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:05:36,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36993 states. [2020-10-14 21:05:37,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36993 to 33442. [2020-10-14 21:05:37,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33442 states. [2020-10-14 21:05:37,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33442 states to 33442 states and 37841 transitions. [2020-10-14 21:05:37,238 INFO L78 Accepts]: Start accepts. Automaton has 33442 states and 37841 transitions. Word has length 510 [2020-10-14 21:05:37,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:05:37,239 INFO L479 AbstractCegarLoop]: Abstraction has 33442 states and 37841 transitions. [2020-10-14 21:05:37,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:05:37,239 INFO L276 IsEmpty]: Start isEmpty. Operand 33442 states and 37841 transitions. [2020-10-14 21:05:37,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2020-10-14 21:05:37,253 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:05:37,254 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 21:05:37,254 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-14 21:05:37,254 INFO L427 AbstractCegarLoop]: === Iteration 28 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:05:37,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:05:37,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1616271998, now seen corresponding path program 1 times [2020-10-14 21:05:37,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:05:37,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1923123425] [2020-10-14 21:05:37,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:05:37,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:37,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:37,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:38,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:38,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 565 [2020-10-14 21:05:38,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:05:38,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 962 [2020-10-14 21:05:38,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:38,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:38,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:05:38,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 281 [2020-10-14 21:05:38,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-14 21:05:38,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:38,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:05:38,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:38,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:38,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:38,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:05:38,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:38,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 21:05:38,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:38,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:38,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:05:38,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:38,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:05:38,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:38,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:05:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:38,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:38,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:38,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:05:38,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:38,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 21:05:38,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:38,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:38,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:05:38,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:38,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:05:38,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:38,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 21:05:38,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:38,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:38,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:38,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 21:05:38,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:38,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 21:05:38,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:38,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:38,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:05:38,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:38,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-14 21:05:38,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:38,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2020-10-14 21:05:38,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:38,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:38,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:38,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-14 21:05:38,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:38,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-14 21:05:38,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:38,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:38,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:05:38,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:05:38,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-14 21:05:38,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:38,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:05:38,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:38,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:38,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:38,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 21:05:38,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:38,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 21:05:38,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:38,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:38,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:05:38,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-14 21:05:38,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:05:38,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:39,086 INFO L134 CoverageAnalysis]: Checked inductivity of 802 backedges. 398 proven. 93 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2020-10-14 21:05:39,086 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1923123425] [2020-10-14 21:05:39,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:05:39,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:05:39,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013856718] [2020-10-14 21:05:39,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:05:39,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:05:39,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:05:39,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:05:39,088 INFO L87 Difference]: Start difference. First operand 33442 states and 37841 transitions. Second operand 7 states. [2020-10-14 21:05:43,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:05:43,388 INFO L93 Difference]: Finished difference Result 66961 states and 75704 transitions. [2020-10-14 21:05:43,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:05:43,390 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 549 [2020-10-14 21:05:43,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:05:43,446 INFO L225 Difference]: With dead ends: 66961 [2020-10-14 21:05:43,446 INFO L226 Difference]: Without dead ends: 33715 [2020-10-14 21:05:43,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:05:43,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33715 states. [2020-10-14 21:05:43,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33715 to 33420. [2020-10-14 21:05:43,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33420 states. [2020-10-14 21:05:43,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33420 states to 33420 states and 37562 transitions. [2020-10-14 21:05:43,823 INFO L78 Accepts]: Start accepts. Automaton has 33420 states and 37562 transitions. Word has length 549 [2020-10-14 21:05:43,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:05:43,823 INFO L479 AbstractCegarLoop]: Abstraction has 33420 states and 37562 transitions. [2020-10-14 21:05:43,824 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:05:43,824 INFO L276 IsEmpty]: Start isEmpty. Operand 33420 states and 37562 transitions. [2020-10-14 21:05:43,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 587 [2020-10-14 21:05:43,839 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:05:43,840 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:05:43,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-14 21:05:43,840 INFO L427 AbstractCegarLoop]: === Iteration 29 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:05:43,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:05:43,840 INFO L82 PathProgramCache]: Analyzing trace with hash -891616147, now seen corresponding path program 1 times [2020-10-14 21:05:43,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:05:43,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1504300752] [2020-10-14 21:05:43,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:05:43,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:43,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:44,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:44,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:44,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:44,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:44,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:45,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:45,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:45,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 602 [2020-10-14 21:05:45,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 21:05:45,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1638 [2020-10-14 21:05:45,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:45,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:45,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:05:45,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 317 [2020-10-14 21:05:45,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 284 [2020-10-14 21:05:45,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:45,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:05:45,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:45,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:45,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:45,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:05:45,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:45,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:05:45,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:45,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:45,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:05:45,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:45,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:05:45,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:45,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:05:45,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:45,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:45,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:45,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:05:45,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:45,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 21:05:45,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:45,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:45,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:05:45,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:45,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:05:45,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:45,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 21:05:45,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:45,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:45,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:45,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:45,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 21:05:45,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:05:45,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-14 21:05:45,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:45,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:45,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:05:45,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:45,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-10-14 21:05:45,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:45,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2020-10-14 21:05:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:45,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:46,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:46,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:46,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-14 21:05:46,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:05:46,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 21:05:46,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:46,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:46,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:05:46,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:46,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-14 21:05:46,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:46,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2020-10-14 21:05:46,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:46,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:46,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:46,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:46,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 21:05:46,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:05:46,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 21:05:46,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:46,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:46,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:05:46,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:46,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-14 21:05:46,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:46,450 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 131 proven. 8 refuted. 0 times theorem prover too weak. 673 trivial. 0 not checked. [2020-10-14 21:05:46,450 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1504300752] [2020-10-14 21:05:46,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:05:46,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 21:05:46,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437306892] [2020-10-14 21:05:46,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 21:05:46,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:05:46,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 21:05:46,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 21:05:46,452 INFO L87 Difference]: Start difference. First operand 33420 states and 37562 transitions. Second operand 5 states. [2020-10-14 21:05:49,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:05:49,138 INFO L93 Difference]: Finished difference Result 64760 states and 72893 transitions. [2020-10-14 21:05:49,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 21:05:49,139 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 586 [2020-10-14 21:05:49,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:05:49,189 INFO L225 Difference]: With dead ends: 64760 [2020-10-14 21:05:49,189 INFO L226 Difference]: Without dead ends: 31950 [2020-10-14 21:05:49,217 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 21:05:49,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31950 states. [2020-10-14 21:05:49,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31950 to 31847. [2020-10-14 21:05:49,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31847 states. [2020-10-14 21:05:49,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31847 states to 31847 states and 35745 transitions. [2020-10-14 21:05:49,533 INFO L78 Accepts]: Start accepts. Automaton has 31847 states and 35745 transitions. Word has length 586 [2020-10-14 21:05:49,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:05:49,533 INFO L479 AbstractCegarLoop]: Abstraction has 31847 states and 35745 transitions. [2020-10-14 21:05:49,533 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 21:05:49,533 INFO L276 IsEmpty]: Start isEmpty. Operand 31847 states and 35745 transitions. [2020-10-14 21:05:49,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2020-10-14 21:05:49,548 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:05:49,549 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:05:49,549 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-14 21:05:49,549 INFO L427 AbstractCegarLoop]: === Iteration 30 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:05:49,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:05:49,549 INFO L82 PathProgramCache]: Analyzing trace with hash 350566107, now seen corresponding path program 1 times [2020-10-14 21:05:49,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:05:49,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [495838921] [2020-10-14 21:05:49,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:05:49,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:49,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:50,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:51,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:51,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 609 [2020-10-14 21:05:51,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:05:51,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1865 [2020-10-14 21:05:51,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:51,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:51,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:05:51,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 318 [2020-10-14 21:05:51,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-14 21:05:51,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:51,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:05:51,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:51,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:51,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:51,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:05:51,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:51,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:05:51,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:51,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:51,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:05:51,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:51,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:05:51,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:51,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:05:51,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:51,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:51,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:51,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 21:05:51,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:51,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 21:05:51,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:51,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:51,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:05:51,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:51,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:05:51,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:51,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 21:05:51,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:51,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:51,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:51,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 21:05:51,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:51,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 21:05:51,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:51,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:51,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:05:51,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:51,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:05:51,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:51,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-14 21:05:51,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:51,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:51,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:51,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 21:05:51,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:51,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 21:05:51,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:51,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:51,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:05:51,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:51,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 21:05:51,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:51,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2020-10-14 21:05:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:51,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:51,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:51,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-14 21:05:51,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:51,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-14 21:05:51,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:51,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:51,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:05:51,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:05:51,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-10-14 21:05:51,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:52,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2020-10-14 21:05:52,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:52,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:52,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:52,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 21:05:52,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:52,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 21:05:52,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:52,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:52,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:05:52,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-14 21:05:52,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:05:52,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:52,359 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 472 proven. 93 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2020-10-14 21:05:52,360 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [495838921] [2020-10-14 21:05:52,360 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:05:52,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:05:52,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875335500] [2020-10-14 21:05:52,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:05:52,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:05:52,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:05:52,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:05:52,362 INFO L87 Difference]: Start difference. First operand 31847 states and 35745 transitions. Second operand 7 states. [2020-10-14 21:05:56,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:05:56,650 INFO L93 Difference]: Finished difference Result 63956 states and 71789 transitions. [2020-10-14 21:05:56,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:05:56,652 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 591 [2020-10-14 21:05:56,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:05:56,727 INFO L225 Difference]: With dead ends: 63956 [2020-10-14 21:05:56,727 INFO L226 Difference]: Without dead ends: 32305 [2020-10-14 21:05:56,769 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:05:56,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32305 states. [2020-10-14 21:05:57,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32305 to 31087. [2020-10-14 21:05:57,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31087 states. [2020-10-14 21:05:57,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31087 states to 31087 states and 34523 transitions. [2020-10-14 21:05:57,172 INFO L78 Accepts]: Start accepts. Automaton has 31087 states and 34523 transitions. Word has length 591 [2020-10-14 21:05:57,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:05:57,173 INFO L479 AbstractCegarLoop]: Abstraction has 31087 states and 34523 transitions. [2020-10-14 21:05:57,173 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:05:57,173 INFO L276 IsEmpty]: Start isEmpty. Operand 31087 states and 34523 transitions. [2020-10-14 21:05:57,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2020-10-14 21:05:57,188 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:05:57,188 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:05:57,188 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-14 21:05:57,188 INFO L427 AbstractCegarLoop]: === Iteration 31 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:05:57,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:05:57,189 INFO L82 PathProgramCache]: Analyzing trace with hash -386337409, now seen corresponding path program 1 times [2020-10-14 21:05:57,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:05:57,189 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1156129619] [2020-10-14 21:05:57,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:05:57,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:57,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:57,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:57,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:57,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:57,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:58,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:58,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:59,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:59,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 607 [2020-10-14 21:05:59,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 21:05:59,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2291 [2020-10-14 21:05:59,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:59,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:59,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:05:59,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 301 [2020-10-14 21:05:59,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 305 [2020-10-14 21:05:59,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:59,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:05:59,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:59,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:59,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:59,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:05:59,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:59,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:05:59,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:59,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:59,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:05:59,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:59,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:05:59,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:59,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:05:59,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:59,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:59,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:59,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:05:59,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:59,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 21:05:59,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:59,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:59,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:05:59,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:59,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:05:59,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:59,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 21:05:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:59,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:59,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:59,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:59,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 21:05:59,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:05:59,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-14 21:05:59,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:59,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:59,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:05:59,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:59,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-10-14 21:05:59,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:59,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2020-10-14 21:05:59,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:59,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:59,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:59,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:59,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 21:05:59,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:05:59,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 21:05:59,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:59,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:59,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:05:59,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:59,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 21:05:59,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:59,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2020-10-14 21:05:59,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:00,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:00,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:00,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:00,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 21:06:00,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:06:00,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-14 21:06:00,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:00,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:00,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:06:00,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:06:00,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-14 21:06:00,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:00,269 INFO L134 CoverageAnalysis]: Checked inductivity of 803 backedges. 131 proven. 8 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2020-10-14 21:06:00,269 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1156129619] [2020-10-14 21:06:00,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:06:00,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 21:06:00,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48461466] [2020-10-14 21:06:00,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 21:06:00,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:06:00,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 21:06:00,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 21:06:00,271 INFO L87 Difference]: Start difference. First operand 31087 states and 34523 transitions. Second operand 5 states. [2020-10-14 21:06:02,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:06:02,696 INFO L93 Difference]: Finished difference Result 58982 states and 65590 transitions. [2020-10-14 21:06:02,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 21:06:02,698 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 591 [2020-10-14 21:06:02,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:06:02,748 INFO L225 Difference]: With dead ends: 58982 [2020-10-14 21:06:02,748 INFO L226 Difference]: Without dead ends: 30787 [2020-10-14 21:06:02,773 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 21:06:02,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30787 states. [2020-10-14 21:06:03,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30787 to 30701. [2020-10-14 21:06:03,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30701 states. [2020-10-14 21:06:03,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30701 states to 30701 states and 34064 transitions. [2020-10-14 21:06:03,086 INFO L78 Accepts]: Start accepts. Automaton has 30701 states and 34064 transitions. Word has length 591 [2020-10-14 21:06:03,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:06:03,087 INFO L479 AbstractCegarLoop]: Abstraction has 30701 states and 34064 transitions. [2020-10-14 21:06:03,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 21:06:03,087 INFO L276 IsEmpty]: Start isEmpty. Operand 30701 states and 34064 transitions. [2020-10-14 21:06:03,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2020-10-14 21:06:03,101 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:06:03,102 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:06:03,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-14 21:06:03,102 INFO L427 AbstractCegarLoop]: === Iteration 32 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:06:03,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:06:03,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1960154770, now seen corresponding path program 1 times [2020-10-14 21:06:03,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:06:03,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [444381828] [2020-10-14 21:06:03,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:06:03,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:03,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:03,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:03,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:03,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:04,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:04,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:04,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:05,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:06,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:06,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 630 [2020-10-14 21:06:06,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 21:06:06,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3261 [2020-10-14 21:06:06,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:06,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:06,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:06:06,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:06:06,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 491 [2020-10-14 21:06:06,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:06,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:06:06,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:06,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:06,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:06,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:06:06,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:06:06,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 21:06:06,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:06,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:06,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:06:06,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:06:06,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:06:06,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:06,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:06:06,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:06,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:06,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:06,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:06,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:06:06,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:06:06,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-14 21:06:06,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:06,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:06,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:06:06,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:06:06,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-14 21:06:06,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:06,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 21:06:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:06,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:06,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:06,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:06,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 21:06:06,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:06:06,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-14 21:06:06,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:06,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:06,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:06:06,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:06:06,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-14 21:06:06,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:06,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2020-10-14 21:06:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:06,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:07,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:07,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:07,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-14 21:06:07,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:06:07,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-14 21:06:07,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:07,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:07,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:06:07,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-10-14 21:06:07,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 21:06:07,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:07,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2020-10-14 21:06:07,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:07,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:07,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:07,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 21:06:07,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:06:07,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 21:06:07,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:07,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:07,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:06:07,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-14 21:06:07,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:06:07,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:07,308 INFO L134 CoverageAnalysis]: Checked inductivity of 837 backedges. 138 proven. 2 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2020-10-14 21:06:07,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [444381828] [2020-10-14 21:06:07,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:06:07,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 21:06:07,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848827929] [2020-10-14 21:06:07,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 21:06:07,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:06:07,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 21:06:07,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 21:06:07,310 INFO L87 Difference]: Start difference. First operand 30701 states and 34064 transitions. Second operand 6 states. [2020-10-14 21:06:09,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:06:09,314 INFO L93 Difference]: Finished difference Result 58396 states and 64751 transitions. [2020-10-14 21:06:09,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 21:06:09,316 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 614 [2020-10-14 21:06:09,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:06:09,362 INFO L225 Difference]: With dead ends: 58396 [2020-10-14 21:06:09,362 INFO L226 Difference]: Without dead ends: 29045 [2020-10-14 21:06:09,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:06:09,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29045 states. [2020-10-14 21:06:09,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29045 to 28761. [2020-10-14 21:06:09,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28761 states. [2020-10-14 21:06:09,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28761 states to 28761 states and 31806 transitions. [2020-10-14 21:06:09,719 INFO L78 Accepts]: Start accepts. Automaton has 28761 states and 31806 transitions. Word has length 614 [2020-10-14 21:06:09,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:06:09,719 INFO L479 AbstractCegarLoop]: Abstraction has 28761 states and 31806 transitions. [2020-10-14 21:06:09,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 21:06:09,720 INFO L276 IsEmpty]: Start isEmpty. Operand 28761 states and 31806 transitions. [2020-10-14 21:06:09,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 636 [2020-10-14 21:06:09,736 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:06:09,737 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 21:06:09,737 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-14 21:06:09,737 INFO L427 AbstractCegarLoop]: === Iteration 33 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:06:09,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:06:09,737 INFO L82 PathProgramCache]: Analyzing trace with hash 247617597, now seen corresponding path program 1 times [2020-10-14 21:06:09,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:06:09,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1447695812] [2020-10-14 21:06:09,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:06:09,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:09,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:10,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking...