/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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/Problem16_label46.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 03:50:19,435 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 03:50:19,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 03:50:19,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 03:50:19,468 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 03:50:19,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 03:50:19,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 03:50:19,480 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 03:50:19,483 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 03:50:19,484 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 03:50:19,486 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 03:50:19,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 03:50:19,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 03:50:19,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 03:50:19,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 03:50:19,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 03:50:19,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 03:50:19,496 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 03:50:19,499 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 03:50:19,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 03:50:19,506 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 03:50:19,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 03:50:19,510 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 03:50:19,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 03:50:19,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 03:50:19,522 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 03:50:19,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 03:50:19,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 03:50:19,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 03:50:19,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 03:50:19,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 03:50:19,530 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 03:50:19,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 03:50:19,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 03:50:19,532 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 03:50:19,533 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 03:50:19,533 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 03:50:19,533 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 03:50:19,534 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 03:50:19,534 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 03:50:19,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 03:50:19,536 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 03:50:19,582 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 03:50:19,583 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 03:50:19,585 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 03:50:19,585 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 03:50:19,585 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 03:50:19,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 03:50:19,586 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 03:50:19,586 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 03:50:19,586 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 03:50:19,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 03:50:19,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 03:50:19,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 03:50:19,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 03:50:19,588 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 03:50:19,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 03:50:19,589 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 03:50:19,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 03:50:19,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 03:50:19,589 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 03:50:19,590 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 03:50:19,590 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 03:50:19,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 03:50:19,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 03:50:19,591 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 03:50:19,591 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 03:50:19,591 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 03:50:19,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 03:50:19,591 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 03:50:19,592 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 03:50:19,592 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 03:50:19,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 03:50:19,922 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 03:50:19,925 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 03:50:19,927 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 03:50:19,927 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 03:50:19,928 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label46.c [2020-10-14 03:50:20,002 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a438155ad/daaad615a1fc47968fcac0327cb651ed/FLAG3b32dba4b [2020-10-14 03:50:20,718 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 03:50:20,719 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label46.c [2020-10-14 03:50:20,744 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a438155ad/daaad615a1fc47968fcac0327cb651ed/FLAG3b32dba4b [2020-10-14 03:50:20,910 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a438155ad/daaad615a1fc47968fcac0327cb651ed [2020-10-14 03:50:20,918 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 03:50:20,920 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 03:50:20,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 03:50:20,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 03:50:20,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 03:50:20,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:50:20" (1/1) ... [2020-10-14 03:50:20,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1003e016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:20, skipping insertion in model container [2020-10-14 03:50:20,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:50:20" (1/1) ... [2020-10-14 03:50:20,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 03:50:21,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 03:50:21,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:50:21,882 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 03:50:22,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:50:22,291 INFO L208 MainTranslator]: Completed translation [2020-10-14 03:50:22,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:22 WrapperNode [2020-10-14 03:50:22,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 03:50:22,294 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 03:50:22,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 03:50:22,294 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 03:50:22,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:22" (1/1) ... [2020-10-14 03:50:22,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:22" (1/1) ... [2020-10-14 03:50:22,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:22" (1/1) ... [2020-10-14 03:50:22,364 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:22" (1/1) ... [2020-10-14 03:50:22,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:22" (1/1) ... [2020-10-14 03:50:22,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:22" (1/1) ... [2020-10-14 03:50:22,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:22" (1/1) ... [2020-10-14 03:50:22,505 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 03:50:22,505 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 03:50:22,505 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 03:50:22,506 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 03:50:22,507 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:22" (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 03:50:22,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 03:50:22,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 03:50:22,575 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 03:50:22,575 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 03:50:22,576 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 03:50:22,576 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 03:50:22,576 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 03:50:22,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 03:50:22,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 03:50:22,578 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 03:50:22,578 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 03:50:22,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 03:50:22,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 03:50:27,078 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 03:50:27,079 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 03:50:27,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:50:27 BoogieIcfgContainer [2020-10-14 03:50:27,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 03:50:27,088 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 03:50:27,088 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 03:50:27,091 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 03:50:27,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:50:20" (1/3) ... [2020-10-14 03:50:27,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10637028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:50:27, skipping insertion in model container [2020-10-14 03:50:27,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:22" (2/3) ... [2020-10-14 03:50:27,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10637028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:50:27, skipping insertion in model container [2020-10-14 03:50:27,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:50:27" (3/3) ... [2020-10-14 03:50:27,095 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label46.c [2020-10-14 03:50:27,107 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 03:50:27,115 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 03:50:27,131 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 03:50:27,159 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 03:50:27,160 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 03:50:27,160 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 03:50:27,160 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 03:50:27,160 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 03:50:27,160 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 03:50:27,160 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 03:50:27,160 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 03:50:27,196 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 03:50:27,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-14 03:50:27,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:27,210 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] [2020-10-14 03:50:27,211 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:27,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:27,218 INFO L82 PathProgramCache]: Analyzing trace with hash -195621283, now seen corresponding path program 1 times [2020-10-14 03:50:27,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:27,229 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1373859226] [2020-10-14 03:50:27,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:27,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:27,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:27,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:27,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 03:50:27,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:27,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 484 [2020-10-14 03:50:27,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:27,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:27,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:50:27,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 03:50:27,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 03:50:27,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 03:50:28,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:50:28,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:28,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:28,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:28,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:50:28,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:28,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 03:50:28,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:28,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:28,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:50:28,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:28,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:50:28,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:28,170 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 03:50:28,170 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1373859226] [2020-10-14 03:50:28,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 03:50:28,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 03:50:28,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706102764] [2020-10-14 03:50:28,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 03:50:28,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:50:28,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 03:50:28,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 03:50:28,202 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-14 03:50:32,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:50:32,878 INFO L93 Difference]: Finished difference Result 1184 states and 2180 transitions. [2020-10-14 03:50:32,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:50:32,882 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-10-14 03:50:32,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:50:32,905 INFO L225 Difference]: With dead ends: 1184 [2020-10-14 03:50:32,906 INFO L226 Difference]: Without dead ends: 696 [2020-10-14 03:50:32,917 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:50:32,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-14 03:50:33,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 689. [2020-10-14 03:50:33,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-10-14 03:50:33,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1155 transitions. [2020-10-14 03:50:33,020 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1155 transitions. Word has length 22 [2020-10-14 03:50:33,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:50:33,021 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 1155 transitions. [2020-10-14 03:50:33,021 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 03:50:33,021 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1155 transitions. [2020-10-14 03:50:33,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-14 03:50:33,026 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:33,026 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:50:33,027 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 03:50:33,027 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:33,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:33,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1458421988, now seen corresponding path program 1 times [2020-10-14 03:50:33,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:33,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [257998463] [2020-10-14 03:50:33,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:33,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:33,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:33,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:33,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:33,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:33,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 03:50:33,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:50:33,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 678 [2020-10-14 03:50:33,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:33,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:33,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:33,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 03:50:33,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 03:50:33,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:50:33,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:50:33,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:33,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:33,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:33,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:50:33,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:33,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 03:50:33,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:33,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:33,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:33,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:33,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:33,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:33,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:50:33,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:33,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:33,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:33,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:50:33,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:33,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 03:50:33,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:33,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:33,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:50:33,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:33,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 03:50:33,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:33,917 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:50:33,917 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [257998463] [2020-10-14 03:50:33,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:50:33,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:50:33,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394852379] [2020-10-14 03:50:33,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:50:33,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:50:33,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:50:33,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:50:33,921 INFO L87 Difference]: Start difference. First operand 689 states and 1155 transitions. Second operand 5 states. [2020-10-14 03:50:40,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:50:40,218 INFO L93 Difference]: Finished difference Result 2063 states and 3486 transitions. [2020-10-14 03:50:40,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:50:40,219 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 92 [2020-10-14 03:50:40,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:50:40,229 INFO L225 Difference]: With dead ends: 2063 [2020-10-14 03:50:40,230 INFO L226 Difference]: Without dead ends: 1380 [2020-10-14 03:50:40,233 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 03:50:40,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2020-10-14 03:50:40,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1376. [2020-10-14 03:50:40,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1376 states. [2020-10-14 03:50:40,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 1979 transitions. [2020-10-14 03:50:40,313 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 1979 transitions. Word has length 92 [2020-10-14 03:50:40,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:50:40,314 INFO L479 AbstractCegarLoop]: Abstraction has 1376 states and 1979 transitions. [2020-10-14 03:50:40,314 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:50:40,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 1979 transitions. [2020-10-14 03:50:40,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-14 03:50:40,317 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:40,317 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 03:50:40,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 03:50:40,318 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:40,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:40,318 INFO L82 PathProgramCache]: Analyzing trace with hash -119189843, now seen corresponding path program 1 times [2020-10-14 03:50:40,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:40,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [71638482] [2020-10-14 03:50:40,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:40,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:40,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:40,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:41,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:41,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 03:50:41,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:50:41,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 665 [2020-10-14 03:50:41,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:41,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:41,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:41,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 03:50:41,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 03:50:41,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:41,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:50:41,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:41,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:41,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:41,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:50:41,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:41,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:50:41,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:41,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:41,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:41,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:41,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:41,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:41,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:50:41,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:41,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:41,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:41,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 03:50:41,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:41,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 03:50:41,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:41,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:41,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:50:41,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:41,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 03:50:41,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:41,217 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:50:41,217 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [71638482] [2020-10-14 03:50:41,217 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:50:41,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:50:41,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455293989] [2020-10-14 03:50:41,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:50:41,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:50:41,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:50:41,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:50:41,220 INFO L87 Difference]: Start difference. First operand 1376 states and 1979 transitions. Second operand 5 states. [2020-10-14 03:50:47,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:50:47,848 INFO L93 Difference]: Finished difference Result 3438 states and 5172 transitions. [2020-10-14 03:50:47,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:50:47,849 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 93 [2020-10-14 03:50:47,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:50:47,864 INFO L225 Difference]: With dead ends: 3438 [2020-10-14 03:50:47,864 INFO L226 Difference]: Without dead ends: 2068 [2020-10-14 03:50:47,868 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 03:50:47,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2068 states. [2020-10-14 03:50:47,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2068 to 2060. [2020-10-14 03:50:47,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2060 states. [2020-10-14 03:50:47,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2060 states to 2060 states and 2954 transitions. [2020-10-14 03:50:47,936 INFO L78 Accepts]: Start accepts. Automaton has 2060 states and 2954 transitions. Word has length 93 [2020-10-14 03:50:47,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:50:47,937 INFO L479 AbstractCegarLoop]: Abstraction has 2060 states and 2954 transitions. [2020-10-14 03:50:47,937 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:50:47,938 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states and 2954 transitions. [2020-10-14 03:50:47,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-14 03:50:47,952 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:47,952 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:50:47,952 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 03:50:47,953 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:47,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:47,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1708086992, now seen corresponding path program 1 times [2020-10-14 03:50:47,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:47,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1355167560] [2020-10-14 03:50:47,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:47,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:48,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:48,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:48,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:48,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 03:50:48,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:50:48,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 765 [2020-10-14 03:50:48,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:48,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:48,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:48,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-14 03:50:48,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 03:50:48,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 03:50:48,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:50:48,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:48,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:48,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:48,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:50:48,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:48,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:50:48,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:48,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:48,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:48,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:48,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:48,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:48,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:50:48,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:48,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:48,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:48,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 03:50:48,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:48,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 03:50:48,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:48,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:48,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:50:48,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:48,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 03:50:48,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:48,984 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:50:48,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1355167560] [2020-10-14 03:50:48,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:50:48,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 03:50:48,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206297564] [2020-10-14 03:50:48,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 03:50:48,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:50:48,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 03:50:48,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:50:48,987 INFO L87 Difference]: Start difference. First operand 2060 states and 2954 transitions. Second operand 6 states. [2020-10-14 03:50:54,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:50:54,577 INFO L93 Difference]: Finished difference Result 7869 states and 11687 transitions. [2020-10-14 03:50:54,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 03:50:54,581 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 114 [2020-10-14 03:50:54,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:50:54,616 INFO L225 Difference]: With dead ends: 7869 [2020-10-14 03:50:54,617 INFO L226 Difference]: Without dead ends: 5815 [2020-10-14 03:50:54,622 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:50:54,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5815 states. [2020-10-14 03:50:54,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5815 to 5807. [2020-10-14 03:50:54,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5807 states. [2020-10-14 03:50:54,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5807 states to 5807 states and 7857 transitions. [2020-10-14 03:50:54,791 INFO L78 Accepts]: Start accepts. Automaton has 5807 states and 7857 transitions. Word has length 114 [2020-10-14 03:50:54,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:50:54,793 INFO L479 AbstractCegarLoop]: Abstraction has 5807 states and 7857 transitions. [2020-10-14 03:50:54,793 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 03:50:54,793 INFO L276 IsEmpty]: Start isEmpty. Operand 5807 states and 7857 transitions. [2020-10-14 03:50:54,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-10-14 03:50:54,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:54,796 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:50:54,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 03:50:54,797 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:54,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:54,797 INFO L82 PathProgramCache]: Analyzing trace with hash 218405936, now seen corresponding path program 1 times [2020-10-14 03:50:54,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:54,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [626231127] [2020-10-14 03:50:54,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:54,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:54,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:54,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:55,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:55,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:56,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:56,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:56,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:50:56,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:50:56,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2074 [2020-10-14 03:50:56,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:56,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:56,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:56,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-14 03:50:56,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 03:50:56,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:56,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:50:56,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:56,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:56,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:56,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:50:56,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:56,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:50:56,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:56,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:56,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:56,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:56,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:56,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:57,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:50:57,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:57,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:57,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:57,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:50:57,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:57,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 03:50:57,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:57,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:57,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:50:57,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:57,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 03:50:57,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 03:50:57,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-14 03:50:57,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:57,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:57,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:57,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:50:57,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:57,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-14 03:50:57,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:57,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:57,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:57,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:50:57,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 03:50:57,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:57,385 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 99 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:50:57,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [626231127] [2020-10-14 03:50:57,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:50:57,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:50:57,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683124992] [2020-10-14 03:50:57,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:50:57,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:50:57,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:50:57,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:50:57,395 INFO L87 Difference]: Start difference. First operand 5807 states and 7857 transitions. Second operand 7 states. [2020-10-14 03:51:04,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:51:04,697 INFO L93 Difference]: Finished difference Result 17982 states and 26581 transitions. [2020-10-14 03:51:04,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:51:04,698 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 177 [2020-10-14 03:51:04,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:51:04,762 INFO L225 Difference]: With dead ends: 17982 [2020-10-14 03:51:04,762 INFO L226 Difference]: Without dead ends: 12181 [2020-10-14 03:51:04,781 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:51:04,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12181 states. [2020-10-14 03:51:05,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12181 to 9753. [2020-10-14 03:51:05,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9753 states. [2020-10-14 03:51:05,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9753 states to 9753 states and 13362 transitions. [2020-10-14 03:51:05,096 INFO L78 Accepts]: Start accepts. Automaton has 9753 states and 13362 transitions. Word has length 177 [2020-10-14 03:51:05,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:51:05,097 INFO L479 AbstractCegarLoop]: Abstraction has 9753 states and 13362 transitions. [2020-10-14 03:51:05,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:51:05,098 INFO L276 IsEmpty]: Start isEmpty. Operand 9753 states and 13362 transitions. [2020-10-14 03:51:05,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-10-14 03:51:05,104 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:51:05,105 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:51:05,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 03:51:05,105 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:51:05,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:51:05,106 INFO L82 PathProgramCache]: Analyzing trace with hash -630354129, now seen corresponding path program 1 times [2020-10-14 03:51:05,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:51:05,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [707283716] [2020-10-14 03:51:05,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:51:05,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:05,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:05,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:05,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:06,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:07,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:07,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 03:51:07,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:51:07,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2140 [2020-10-14 03:51:07,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:07,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:07,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:07,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 148 [2020-10-14 03:51:07,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 03:51:07,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:07,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:51:07,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:07,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:07,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:07,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:51:07,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:07,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:51:07,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:07,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:07,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:07,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:07,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:07,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:07,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:51:07,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:07,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:07,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:07,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 03:51:07,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:07,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 03:51:07,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:07,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:07,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:51:07,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:07,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-14 03:51:07,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:07,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-14 03:51:07,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:07,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:07,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:07,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:51:07,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:07,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-14 03:51:07,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:07,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:07,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:07,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:51:07,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 03:51:07,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:07,788 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 99 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:51:07,788 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [707283716] [2020-10-14 03:51:07,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:51:07,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:51:07,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966066563] [2020-10-14 03:51:07,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:51:07,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:51:07,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:51:07,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:51:07,791 INFO L87 Difference]: Start difference. First operand 9753 states and 13362 transitions. Second operand 8 states. [2020-10-14 03:51:15,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:51:15,058 INFO L93 Difference]: Finished difference Result 21851 states and 31131 transitions. [2020-10-14 03:51:15,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 03:51:15,059 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 232 [2020-10-14 03:51:15,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:51:15,125 INFO L225 Difference]: With dead ends: 21851 [2020-10-14 03:51:15,125 INFO L226 Difference]: Without dead ends: 12441 [2020-10-14 03:51:15,163 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-14 03:51:15,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12441 states. [2020-10-14 03:51:15,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12441 to 11326. [2020-10-14 03:51:15,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11326 states. [2020-10-14 03:51:15,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11326 states to 11326 states and 15428 transitions. [2020-10-14 03:51:15,550 INFO L78 Accepts]: Start accepts. Automaton has 11326 states and 15428 transitions. Word has length 232 [2020-10-14 03:51:15,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:51:15,551 INFO L479 AbstractCegarLoop]: Abstraction has 11326 states and 15428 transitions. [2020-10-14 03:51:15,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:51:15,551 INFO L276 IsEmpty]: Start isEmpty. Operand 11326 states and 15428 transitions. [2020-10-14 03:51:15,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-10-14 03:51:15,561 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:51:15,561 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:51:15,561 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 03:51:15,562 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:51:15,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:51:15,562 INFO L82 PathProgramCache]: Analyzing trace with hash 875055336, now seen corresponding path program 1 times [2020-10-14 03:51:15,562 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:51:15,563 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [849674672] [2020-10-14 03:51:15,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:51:15,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:15,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:16,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:17,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:17,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:17,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 321 [2020-10-14 03:51:17,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:51:17,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1679 [2020-10-14 03:51:17,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:17,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:17,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:17,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 225 [2020-10-14 03:51:17,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 03:51:17,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:17,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:51:17,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:17,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:17,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:17,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:51:17,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:17,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:51:17,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:17,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:17,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:17,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:17,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:17,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:17,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:51:17,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:17,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:17,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:17,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:51:17,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:17,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-14 03:51:17,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:17,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:17,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:51:17,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:17,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 210 [2020-10-14 03:51:17,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:17,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-14 03:51:17,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:17,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:17,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:17,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:51:17,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:17,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 03:51:17,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:17,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:17,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:17,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:51:17,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 03:51:17,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:17,969 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 99 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:51:17,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [849674672] [2020-10-14 03:51:17,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:51:17,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:51:17,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115208242] [2020-10-14 03:51:17,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:51:17,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:51:17,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:51:17,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:51:17,974 INFO L87 Difference]: Start difference. First operand 11326 states and 15428 transitions. Second operand 7 states. [2020-10-14 03:51:24,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:51:24,481 INFO L93 Difference]: Finished difference Result 25217 states and 34824 transitions. [2020-10-14 03:51:24,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:51:24,485 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 309 [2020-10-14 03:51:24,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:51:24,560 INFO L225 Difference]: With dead ends: 25217 [2020-10-14 03:51:24,560 INFO L226 Difference]: Without dead ends: 14234 [2020-10-14 03:51:24,595 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 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 03:51:24,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14234 states. [2020-10-14 03:51:24,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14234 to 13885. [2020-10-14 03:51:24,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13885 states. [2020-10-14 03:51:24,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13885 states to 13885 states and 18404 transitions. [2020-10-14 03:51:24,985 INFO L78 Accepts]: Start accepts. Automaton has 13885 states and 18404 transitions. Word has length 309 [2020-10-14 03:51:24,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:51:24,986 INFO L479 AbstractCegarLoop]: Abstraction has 13885 states and 18404 transitions. [2020-10-14 03:51:24,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:51:24,987 INFO L276 IsEmpty]: Start isEmpty. Operand 13885 states and 18404 transitions. [2020-10-14 03:51:25,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2020-10-14 03:51:25,010 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:51:25,011 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 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 03:51:25,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 03:51:25,012 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:51:25,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:51:25,012 INFO L82 PathProgramCache]: Analyzing trace with hash -709251493, now seen corresponding path program 1 times [2020-10-14 03:51:25,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:51:25,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [759429864] [2020-10-14 03:51:25,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:51:25,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:25,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:25,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:25,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:28,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:29,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:30,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:30,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 415 [2020-10-14 03:51:30,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:51:30,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-14 03:51:30,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:30,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:30,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:30,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 225 [2020-10-14 03:51:30,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 03:51:30,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:30,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:51:30,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:30,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:30,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:30,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:51:30,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:30,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:51:30,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:30,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:30,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:30,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:30,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:30,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:30,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:51:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:30,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:30,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:30,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:51:30,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:30,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-14 03:51:30,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:30,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:30,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:51:30,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:30,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 210 [2020-10-14 03:51:30,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:30,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-14 03:51:30,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:30,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:30,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:30,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 03:51:30,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:30,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 03:51:30,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:30,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:30,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:30,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:51:30,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 03:51:30,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:30,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-14 03:51:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:30,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:30,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:30,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:51:30,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:30,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:51:30,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:30,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:30,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:30,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 03:51:30,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:30,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:31,197 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 138 proven. 71 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-14 03:51:31,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [759429864] [2020-10-14 03:51:31,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:51:31,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:51:31,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325349112] [2020-10-14 03:51:31,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:51:31,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:51:31,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:51:31,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:51:31,200 INFO L87 Difference]: Start difference. First operand 13885 states and 18404 transitions. Second operand 7 states. [2020-10-14 03:51:35,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:51:35,516 INFO L93 Difference]: Finished difference Result 27249 states and 36888 transitions. [2020-10-14 03:51:35,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:51:35,517 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 401 [2020-10-14 03:51:35,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:51:35,568 INFO L225 Difference]: With dead ends: 27249 [2020-10-14 03:51:35,569 INFO L226 Difference]: Without dead ends: 14046 [2020-10-14 03:51:35,602 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 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 03:51:35,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14046 states. [2020-10-14 03:51:35,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14046 to 13593. [2020-10-14 03:51:35,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13593 states. [2020-10-14 03:51:35,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13593 states to 13593 states and 16490 transitions. [2020-10-14 03:51:35,941 INFO L78 Accepts]: Start accepts. Automaton has 13593 states and 16490 transitions. Word has length 401 [2020-10-14 03:51:35,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:51:35,942 INFO L479 AbstractCegarLoop]: Abstraction has 13593 states and 16490 transitions. [2020-10-14 03:51:35,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:51:35,942 INFO L276 IsEmpty]: Start isEmpty. Operand 13593 states and 16490 transitions. [2020-10-14 03:51:36,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2020-10-14 03:51:36,103 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:51:36,103 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 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 03:51:36,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 03:51:36,104 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:51:36,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:51:36,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1135942786, now seen corresponding path program 1 times [2020-10-14 03:51:36,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:51:36,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1551387213] [2020-10-14 03:51:36,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:51:36,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:36,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:36,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:36,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:37,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:39,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:41,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:41,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 418 [2020-10-14 03:51:41,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:51:41,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5204 [2020-10-14 03:51:41,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:41,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:41,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:41,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 228 [2020-10-14 03:51:41,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 03:51:41,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:41,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:51:41,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:41,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:41,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:41,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:51:41,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:41,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 03:51:41,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:41,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:41,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:41,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:41,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:41,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:41,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:51:41,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:41,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:41,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:41,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-14 03:51:41,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:41,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-14 03:51:41,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:41,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:41,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:51:41,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:41,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 213 [2020-10-14 03:51:41,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:41,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-10-14 03:51:41,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:41,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:41,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:41,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 03:51:41,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:41,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-14 03:51:41,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:41,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:41,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:41,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:51:41,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 03:51:41,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:42,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2020-10-14 03:51:42,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:42,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:42,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:42,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:51:42,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:42,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 03:51:42,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:42,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:42,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:42,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 03:51:42,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:42,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:42,381 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 138 proven. 71 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-14 03:51:42,390 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1551387213] [2020-10-14 03:51:42,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:51:42,391 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:51:42,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618589184] [2020-10-14 03:51:42,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:51:42,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:51:42,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:51:42,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:51:42,398 INFO L87 Difference]: Start difference. First operand 13593 states and 16490 transitions. Second operand 8 states. [2020-10-14 03:51:47,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:51:47,218 INFO L93 Difference]: Finished difference Result 29889 states and 36271 transitions. [2020-10-14 03:51:47,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:51:47,219 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 404 [2020-10-14 03:51:47,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:51:47,252 INFO L225 Difference]: With dead ends: 29889 [2020-10-14 03:51:47,252 INFO L226 Difference]: Without dead ends: 12790 [2020-10-14 03:51:47,283 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:51:47,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12790 states. [2020-10-14 03:51:47,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12790 to 12106. [2020-10-14 03:51:47,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12106 states. [2020-10-14 03:51:47,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12106 states to 12106 states and 13168 transitions. [2020-10-14 03:51:47,519 INFO L78 Accepts]: Start accepts. Automaton has 12106 states and 13168 transitions. Word has length 404 [2020-10-14 03:51:47,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:51:47,520 INFO L479 AbstractCegarLoop]: Abstraction has 12106 states and 13168 transitions. [2020-10-14 03:51:47,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:51:47,520 INFO L276 IsEmpty]: Start isEmpty. Operand 12106 states and 13168 transitions. [2020-10-14 03:51:47,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 768 [2020-10-14 03:51:47,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:51:47,580 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:51:47,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 03:51:47,581 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:51:47,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:51:47,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1164524621, now seen corresponding path program 1 times [2020-10-14 03:51:47,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:51:47,582 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [59019021] [2020-10-14 03:51:47,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:51:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:47,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:47,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:47,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:48,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:53,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:53,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 785 [2020-10-14 03:51:53,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:51:53,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5537 [2020-10-14 03:51:53,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:53,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:53,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:53,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 374 [2020-10-14 03:51:53,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 03:51:53,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:53,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:51:53,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:53,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:53,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:53,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:51:53,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:53,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:51:53,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:53,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:53,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:53,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:53,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:53,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:53,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:51:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:53,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:53,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:53,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:51:53,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:53,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 03:51:53,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:53,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:53,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:53,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:53,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:53,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:53,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:51:53,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:53,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:53,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:53,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:51:53,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:53,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 03:51:53,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:53,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:53,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:53,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:53,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:53,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:53,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2020-10-14 03:51:53,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:53,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:53,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:53,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:51:53,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:53,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 03:51:53,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:53,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:53,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:51:53,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:53,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 03:51:53,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:53,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2020-10-14 03:51:53,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:53,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:53,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:53,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:51:53,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:53,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-10-14 03:51:53,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:53,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:53,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:53,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:51:53,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-14 03:51:53,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:54,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2020-10-14 03:51:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:54,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:54,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:54,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-14 03:51:54,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:54,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 03:51:54,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:54,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:54,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:54,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-14 03:51:54,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:54,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:54,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 448 proven. 169 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2020-10-14 03:51:54,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [59019021] [2020-10-14 03:51:54,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:51:54,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:51:54,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713547960] [2020-10-14 03:51:54,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:51:54,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:51:54,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:51:54,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:51:54,616 INFO L87 Difference]: Start difference. First operand 12106 states and 13168 transitions. Second operand 7 states. [2020-10-14 03:51:58,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:51:58,131 INFO L93 Difference]: Finished difference Result 28177 states and 30427 transitions. [2020-10-14 03:51:58,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:51:58,132 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 767 [2020-10-14 03:51:58,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:51:58,168 INFO L225 Difference]: With dead ends: 28177 [2020-10-14 03:51:58,168 INFO L226 Difference]: Without dead ends: 16753 [2020-10-14 03:51:58,189 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 03:51:58,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16753 states. [2020-10-14 03:51:58,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16753 to 15066. [2020-10-14 03:51:58,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15066 states. [2020-10-14 03:51:58,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15066 states to 15066 states and 15996 transitions. [2020-10-14 03:51:58,441 INFO L78 Accepts]: Start accepts. Automaton has 15066 states and 15996 transitions. Word has length 767 [2020-10-14 03:51:58,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:51:58,442 INFO L479 AbstractCegarLoop]: Abstraction has 15066 states and 15996 transitions. [2020-10-14 03:51:58,442 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:51:58,442 INFO L276 IsEmpty]: Start isEmpty. Operand 15066 states and 15996 transitions. [2020-10-14 03:51:58,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 940 [2020-10-14 03:51:58,515 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:51:58,515 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:51:58,516 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 03:51:58,516 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:51:58,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:51:58,517 INFO L82 PathProgramCache]: Analyzing trace with hash -384555648, now seen corresponding path program 1 times [2020-10-14 03:51:58,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:51:58,517 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [356299230] [2020-10-14 03:51:58,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:51:58,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:58,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:58,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:58,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:01,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:02,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:03,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:03,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:03,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 959 [2020-10-14 03:52:03,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:52:03,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5065 [2020-10-14 03:52:03,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:03,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:03,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:03,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 262 [2020-10-14 03:52:03,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:52:03,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:03,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:52:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:03,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:03,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:03,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:52:03,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:03,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:52:03,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:03,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:03,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:03,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:03,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:03,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:03,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:52:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:03,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:03,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:03,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:52:03,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:03,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 03:52:03,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:03,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:03,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:03,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:03,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:03,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:03,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:52:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:03,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:03,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:03,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:52:03,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:03,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 03:52:03,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:03,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:03,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:52:03,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:03,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:52:03,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:03,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2020-10-14 03:52:04,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:04,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:04,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:04,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:52:04,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:04,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-10-14 03:52:04,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:04,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:04,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:04,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:52:04,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:52:04,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:04,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 531 [2020-10-14 03:52:04,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:04,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:04,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:04,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 325 [2020-10-14 03:52:04,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:04,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 03:52:04,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:04,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:04,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:04,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 322 [2020-10-14 03:52:04,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:04,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:04,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:52:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:04,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:04,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:04,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 03:52:04,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:04,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 03:52:04,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:04,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:04,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:04,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:04,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:04,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:04,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 853 [2020-10-14 03:52:04,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:04,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:04,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:04,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:52:04,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:04,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 03:52:04,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:04,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:04,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:04,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 03:52:04,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:04,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:05,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1251 backedges. 340 proven. 341 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2020-10-14 03:52:05,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [356299230] [2020-10-14 03:52:05,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:52:05,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:52:05,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864227828] [2020-10-14 03:52:05,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:52:05,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:52:05,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:52:05,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:52:05,181 INFO L87 Difference]: Start difference. First operand 15066 states and 15996 transitions. Second operand 7 states. [2020-10-14 03:52:09,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:52:09,569 INFO L93 Difference]: Finished difference Result 33835 states and 35954 transitions. [2020-10-14 03:52:09,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:52:09,571 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 939 [2020-10-14 03:52:09,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:52:09,610 INFO L225 Difference]: With dead ends: 33835 [2020-10-14 03:52:09,611 INFO L226 Difference]: Without dead ends: 19114 [2020-10-14 03:52:09,631 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 1 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 03:52:09,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19114 states. [2020-10-14 03:52:09,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19114 to 17764. [2020-10-14 03:52:09,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17764 states. [2020-10-14 03:52:09,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17764 states to 17764 states and 18779 transitions. [2020-10-14 03:52:09,904 INFO L78 Accepts]: Start accepts. Automaton has 17764 states and 18779 transitions. Word has length 939 [2020-10-14 03:52:09,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:52:09,905 INFO L479 AbstractCegarLoop]: Abstraction has 17764 states and 18779 transitions. [2020-10-14 03:52:09,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:52:09,906 INFO L276 IsEmpty]: Start isEmpty. Operand 17764 states and 18779 transitions. [2020-10-14 03:52:09,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1020 [2020-10-14 03:52:09,960 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:52:09,961 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:52:09,961 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 03:52:09,961 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:52:09,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:52:09,962 INFO L82 PathProgramCache]: Analyzing trace with hash 514832160, now seen corresponding path program 1 times [2020-10-14 03:52:09,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:52:09,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [392245821] [2020-10-14 03:52:09,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:52:10,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:10,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:10,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:10,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:12,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:15,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:15,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1039 [2020-10-14 03:52:15,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:52:15,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 03:52:15,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:15,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:15,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:15,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 342 [2020-10-14 03:52:15,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:52:15,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:15,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:52:15,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:15,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:15,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:15,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:52:15,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:15,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:52:15,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:15,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:15,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:15,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:15,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:15,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:15,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:52:15,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:15,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:15,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:15,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:52:15,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:15,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 03:52:15,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:15,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:15,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:15,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:15,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:15,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:15,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:52:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:15,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:15,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:15,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:52:15,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:15,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 03:52:15,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:15,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:15,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:52:15,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:15,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 03:52:15,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:15,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2020-10-14 03:52:15,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:15,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:15,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:15,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:52:15,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:15,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 308 [2020-10-14 03:52:15,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:15,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:15,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:15,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:52:15,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:52:15,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:15,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 611 [2020-10-14 03:52:15,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:16,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:16,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:16,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 325 [2020-10-14 03:52:16,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:16,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-14 03:52:16,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:16,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:16,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:16,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 322 [2020-10-14 03:52:16,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:16,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:16,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:52:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:16,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:16,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:16,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 03:52:16,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:16,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 03:52:16,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:16,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:16,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:16,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:16,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:16,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:16,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 933 [2020-10-14 03:52:16,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:16,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:16,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:16,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:52:16,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:16,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 03:52:16,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:16,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:16,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:16,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 03:52:16,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:16,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:17,084 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 420 proven. 341 refuted. 0 times theorem prover too weak. 670 trivial. 0 not checked. [2020-10-14 03:52:17,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [392245821] [2020-10-14 03:52:17,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:52:17,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:52:17,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459788843] [2020-10-14 03:52:17,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:52:17,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:52:17,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:52:17,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:52:17,086 INFO L87 Difference]: Start difference. First operand 17764 states and 18779 transitions. Second operand 7 states. [2020-10-14 03:52:20,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:52:20,963 INFO L93 Difference]: Finished difference Result 35197 states and 37243 transitions. [2020-10-14 03:52:20,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:52:20,964 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1019 [2020-10-14 03:52:20,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:52:21,004 INFO L225 Difference]: With dead ends: 35197 [2020-10-14 03:52:21,005 INFO L226 Difference]: Without dead ends: 17778 [2020-10-14 03:52:21,027 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:52:21,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17778 states. [2020-10-14 03:52:21,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17778 to 17086. [2020-10-14 03:52:21,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17086 states. [2020-10-14 03:52:21,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17086 states to 17086 states and 18071 transitions. [2020-10-14 03:52:21,326 INFO L78 Accepts]: Start accepts. Automaton has 17086 states and 18071 transitions. Word has length 1019 [2020-10-14 03:52:21,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:52:21,328 INFO L479 AbstractCegarLoop]: Abstraction has 17086 states and 18071 transitions. [2020-10-14 03:52:21,328 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:52:21,328 INFO L276 IsEmpty]: Start isEmpty. Operand 17086 states and 18071 transitions. [2020-10-14 03:52:21,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1039 [2020-10-14 03:52:21,373 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:52:21,376 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:52:21,376 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 03:52:21,376 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:52:21,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:52:21,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1842485554, now seen corresponding path program 1 times [2020-10-14 03:52:21,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:52:21,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [670503275] [2020-10-14 03:52:21,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:52:21,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:21,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:21,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:21,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:22,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:26,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:26,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:26,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1060 [2020-10-14 03:52:26,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:52:26,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-14 03:52:26,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:26,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:26,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:26,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 363 [2020-10-14 03:52:26,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:52:26,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:26,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:52:26,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:26,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:26,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:26,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:52:26,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:26,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:52:26,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:26,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:26,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:26,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:26,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:26,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:26,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:52:26,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:26,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:26,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:26,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:52:26,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:26,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 03:52:26,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:26,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:26,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:26,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:26,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:26,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:26,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:52:26,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:26,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:26,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:26,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:52:26,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:26,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 03:52:26,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:26,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:26,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:26,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:26,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:26,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:26,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2020-10-14 03:52:26,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:26,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:26,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:26,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:52:26,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:26,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 03:52:26,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:26,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:26,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:52:26,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:26,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 03:52:26,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:26,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2020-10-14 03:52:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:27,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:27,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:27,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:52:27,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:27,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-14 03:52:27,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:27,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:27,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:27,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:52:27,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:52:27,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:27,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 630 [2020-10-14 03:52:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:27,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:27,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:27,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 325 [2020-10-14 03:52:27,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:27,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-14 03:52:27,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:27,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:27,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:27,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 322 [2020-10-14 03:52:27,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:27,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:27,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:52:27,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:27,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:27,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:27,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 03:52:27,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:27,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:52:27,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:27,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:27,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:27,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:27,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:27,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:28,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 952 [2020-10-14 03:52:28,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:28,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:28,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:28,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:52:28,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:28,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 03:52:28,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:28,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:28,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:28,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 03:52:28,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:28,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:29,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1694 backedges. 464 proven. 341 refuted. 0 times theorem prover too weak. 889 trivial. 0 not checked. [2020-10-14 03:52:29,193 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [670503275] [2020-10-14 03:52:29,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:52:29,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:52:29,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838669000] [2020-10-14 03:52:29,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:52:29,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:52:29,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:52:29,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:52:29,196 INFO L87 Difference]: Start difference. First operand 17086 states and 18071 transitions. Second operand 7 states. [2020-10-14 03:52:32,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:52:32,499 INFO L93 Difference]: Finished difference Result 33857 states and 35889 transitions. [2020-10-14 03:52:32,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:52:32,500 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1038 [2020-10-14 03:52:32,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:52:32,526 INFO L225 Difference]: With dead ends: 33857 [2020-10-14 03:52:32,526 INFO L226 Difference]: Without dead ends: 17116 [2020-10-14 03:52:32,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:52:32,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17116 states. [2020-10-14 03:52:32,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17116 to 16749. [2020-10-14 03:52:32,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16749 states. [2020-10-14 03:52:32,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16749 states to 16749 states and 17700 transitions. [2020-10-14 03:52:32,778 INFO L78 Accepts]: Start accepts. Automaton has 16749 states and 17700 transitions. Word has length 1038 [2020-10-14 03:52:32,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:52:32,779 INFO L479 AbstractCegarLoop]: Abstraction has 16749 states and 17700 transitions. [2020-10-14 03:52:32,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:52:32,779 INFO L276 IsEmpty]: Start isEmpty. Operand 16749 states and 17700 transitions. [2020-10-14 03:52:32,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1181 [2020-10-14 03:52:32,813 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:52:32,813 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:52:32,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 03:52:32,814 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:52:32,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:52:32,815 INFO L82 PathProgramCache]: Analyzing trace with hash 882127935, now seen corresponding path program 1 times [2020-10-14 03:52:32,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:52:32,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1680260251] [2020-10-14 03:52:32,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:52:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:32,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:33,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:33,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:33,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:33,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:36,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:37,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:37,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1204 [2020-10-14 03:52:37,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:52:37,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-14 03:52:37,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:37,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:37,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:37,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 507 [2020-10-14 03:52:37,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:52:37,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:38,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:52:38,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:38,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:38,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:38,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:52:38,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:38,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:52:38,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:38,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:38,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:38,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:38,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:38,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:38,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:52:38,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:38,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:38,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:38,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:52:38,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:38,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 03:52:38,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:38,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:38,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:38,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:38,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:38,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:38,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:52:38,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:38,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:38,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:38,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:52:38,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:38,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 03:52:38,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:38,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:38,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:38,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:38,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:38,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:38,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2020-10-14 03:52:38,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:38,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:38,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:38,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:52:38,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:38,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 03:52:38,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:38,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:38,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:38,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:38,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:38,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:38,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2020-10-14 03:52:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:38,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:38,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:38,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:52:38,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:38,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 03:52:38,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:38,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:38,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:52:38,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:38,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 03:52:38,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:38,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2020-10-14 03:52:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:38,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:38,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:38,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:52:38,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:38,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-10-14 03:52:38,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:38,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:38,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:38,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:52:38,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:52:38,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:38,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 772 [2020-10-14 03:52:38,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:38,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:39,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:39,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 325 [2020-10-14 03:52:39,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:39,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 03:52:39,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:39,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:39,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:39,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 322 [2020-10-14 03:52:39,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:39,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:39,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:52:39,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:39,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:39,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:39,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 03:52:39,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:39,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 03:52:39,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:39,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:39,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:39,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:39,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:39,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:39,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1094 [2020-10-14 03:52:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:39,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:39,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:39,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:52:39,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:39,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 03:52:39,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:39,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:39,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:39,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 03:52:39,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:39,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:39,910 INFO L134 CoverageAnalysis]: Checked inductivity of 2412 backedges. 631 proven. 341 refuted. 0 times theorem prover too weak. 1440 trivial. 0 not checked. [2020-10-14 03:52:39,911 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1680260251] [2020-10-14 03:52:39,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:52:39,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:52:39,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145459989] [2020-10-14 03:52:39,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:52:39,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:52:39,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:52:39,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:52:39,913 INFO L87 Difference]: Start difference. First operand 16749 states and 17700 transitions. Second operand 7 states. [2020-10-14 03:52:44,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:52:44,746 INFO L93 Difference]: Finished difference Result 36878 states and 39025 transitions. [2020-10-14 03:52:44,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:52:44,747 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1180 [2020-10-14 03:52:44,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:52:44,776 INFO L225 Difference]: With dead ends: 36878 [2020-10-14 03:52:44,776 INFO L226 Difference]: Without dead ends: 20474 [2020-10-14 03:52:44,795 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 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 03:52:44,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20474 states. [2020-10-14 03:52:45,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20474 to 19124. [2020-10-14 03:52:45,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19124 states. [2020-10-14 03:52:45,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19124 states to 19124 states and 20105 transitions. [2020-10-14 03:52:45,046 INFO L78 Accepts]: Start accepts. Automaton has 19124 states and 20105 transitions. Word has length 1180 [2020-10-14 03:52:45,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:52:45,047 INFO L479 AbstractCegarLoop]: Abstraction has 19124 states and 20105 transitions. [2020-10-14 03:52:45,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:52:45,047 INFO L276 IsEmpty]: Start isEmpty. Operand 19124 states and 20105 transitions. [2020-10-14 03:52:45,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1294 [2020-10-14 03:52:45,075 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:52:45,076 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:52:45,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 03:52:45,076 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:52:45,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:52:45,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1824561095, now seen corresponding path program 1 times [2020-10-14 03:52:45,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:52:45,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [278244734] [2020-10-14 03:52:45,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:52:45,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:45,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:45,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:45,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:47,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:49,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:50,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:50,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1315 [2020-10-14 03:52:50,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:52:50,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-10-14 03:52:50,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:50,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:50,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:50,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 618 [2020-10-14 03:52:50,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:52:50,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:50,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:52:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:50,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:50,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:50,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:52:50,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:50,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:52:50,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:50,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:50,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:50,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:50,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:50,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:50,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:52:50,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:50,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:50,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:50,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:52:50,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:50,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 03:52:50,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:50,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:50,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:50,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:50,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:50,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:50,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:52:50,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:50,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:50,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:50,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:52:50,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:50,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 03:52:50,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:50,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:50,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:50,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:50,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:50,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:50,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-10-14 03:52:50,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:50,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:50,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:50,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:52:50,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:50,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-14 03:52:50,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:50,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:50,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:52:50,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:50,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 245 [2020-10-14 03:52:50,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:50,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 612 [2020-10-14 03:52:50,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:50,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:51,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:51,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:52:51,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:51,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-10-14 03:52:51,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:51,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:51,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:51,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:52:51,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:52:51,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:51,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 885 [2020-10-14 03:52:51,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:51,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:51,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:51,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 325 [2020-10-14 03:52:51,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:51,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-14 03:52:51,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:51,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:51,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:51,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 322 [2020-10-14 03:52:51,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:51,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:51,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:52:51,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:51,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:51,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:51,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 03:52:51,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:51,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 03:52:51,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:51,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:51,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:51,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:51,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:51,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:51,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1207 [2020-10-14 03:52:51,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:51,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:51,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:51,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:52:51,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:51,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 03:52:51,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:51,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:51,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:51,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 03:52:51,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:51,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:52,469 INFO L134 CoverageAnalysis]: Checked inductivity of 2400 backedges. 719 proven. 341 refuted. 0 times theorem prover too weak. 1340 trivial. 0 not checked. [2020-10-14 03:52:52,469 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [278244734] [2020-10-14 03:52:52,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:52:52,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:52:52,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771700554] [2020-10-14 03:52:52,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:52:52,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:52:52,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:52:52,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:52:52,471 INFO L87 Difference]: Start difference. First operand 19124 states and 20105 transitions. Second operand 7 states. [2020-10-14 03:52:56,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:52:56,585 INFO L93 Difference]: Finished difference Result 39261 states and 41248 transitions. [2020-10-14 03:52:56,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:52:56,586 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1293 [2020-10-14 03:52:56,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:52:56,614 INFO L225 Difference]: With dead ends: 39261 [2020-10-14 03:52:56,614 INFO L226 Difference]: Without dead ends: 20482 [2020-10-14 03:52:56,632 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 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 03:52:56,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20482 states. [2020-10-14 03:52:56,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20482 to 20476. [2020-10-14 03:52:56,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20476 states. [2020-10-14 03:52:56,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20476 states to 20476 states and 21357 transitions. [2020-10-14 03:52:56,877 INFO L78 Accepts]: Start accepts. Automaton has 20476 states and 21357 transitions. Word has length 1293 [2020-10-14 03:52:56,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:52:56,878 INFO L479 AbstractCegarLoop]: Abstraction has 20476 states and 21357 transitions. [2020-10-14 03:52:56,878 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:52:56,878 INFO L276 IsEmpty]: Start isEmpty. Operand 20476 states and 21357 transitions. [2020-10-14 03:52:56,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1313 [2020-10-14 03:52:56,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:52:56,913 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:52:56,913 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 03:52:56,913 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:52:56,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:52:56,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1391329993, now seen corresponding path program 1 times [2020-10-14 03:52:56,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:52:56,914 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1175398164] [2020-10-14 03:52:56,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:52:57,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:57,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:57,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:57,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:00,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:02,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:02,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1334 [2020-10-14 03:53:02,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:53:02,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-14 03:53:02,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:02,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:02,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:02,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 366 [2020-10-14 03:53:02,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 03:53:02,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:02,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:53:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:02,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:02,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:02,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:53:02,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:02,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:53:02,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:02,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:02,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:02,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:02,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:02,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:02,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:53:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:02,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:02,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:02,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:53:02,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:02,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 03:53:02,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:02,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:02,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:02,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:02,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:02,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:02,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:53:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:02,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:02,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:02,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:53:02,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:02,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:53:02,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:02,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:02,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:53:02,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:02,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:53:02,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:02,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-10-14 03:53:02,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:02,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:02,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:02,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:53:02,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:02,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-14 03:53:02,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:02,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:02,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:02,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:53:02,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 03:53:02,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:02,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 612 [2020-10-14 03:53:02,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:02,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:03,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:03,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-14 03:53:03,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:03,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-14 03:53:03,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:03,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:03,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:03,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 301 [2020-10-14 03:53:03,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:03,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:03,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:53:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:03,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:03,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:03,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 03:53:03,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:03,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:53:03,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:03,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:03,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:03,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:03,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:03,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:03,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 913 [2020-10-14 03:53:03,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:03,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:03,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:03,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:53:03,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:03,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 03:53:03,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:03,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:03,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:03,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 03:53:03,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:03,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:03,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1128 [2020-10-14 03:53:03,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:03,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:03,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:03,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-14 03:53:03,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:03,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 03:53:03,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:03,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:03,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:03,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-14 03:53:03,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:03,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:04,709 INFO L134 CoverageAnalysis]: Checked inductivity of 2718 backedges. 467 proven. 628 refuted. 0 times theorem prover too weak. 1623 trivial. 0 not checked. [2020-10-14 03:53:04,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1175398164] [2020-10-14 03:53:04,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:53:04,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:53:04,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379359678] [2020-10-14 03:53:04,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:53:04,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:53:04,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:53:04,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:53:04,712 INFO L87 Difference]: Start difference. First operand 20476 states and 21357 transitions. Second operand 7 states. [2020-10-14 03:53:08,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:53:08,618 INFO L93 Difference]: Finished difference Result 40607 states and 42351 transitions. [2020-10-14 03:53:08,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:53:08,620 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1312 [2020-10-14 03:53:08,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:53:08,652 INFO L225 Difference]: With dead ends: 40607 [2020-10-14 03:53:08,652 INFO L226 Difference]: Without dead ends: 20815 [2020-10-14 03:53:08,667 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:53:08,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20815 states. [2020-10-14 03:53:08,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20815 to 20813. [2020-10-14 03:53:08,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20813 states. [2020-10-14 03:53:08,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20813 states to 20813 states and 21697 transitions. [2020-10-14 03:53:08,921 INFO L78 Accepts]: Start accepts. Automaton has 20813 states and 21697 transitions. Word has length 1312 [2020-10-14 03:53:08,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:53:08,922 INFO L479 AbstractCegarLoop]: Abstraction has 20813 states and 21697 transitions. [2020-10-14 03:53:08,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:53:08,922 INFO L276 IsEmpty]: Start isEmpty. Operand 20813 states and 21697 transitions. [2020-10-14 03:53:08,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1445 [2020-10-14 03:53:08,954 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:53:08,955 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:53:08,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 03:53:08,955 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:53:08,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:53:08,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1058545401, now seen corresponding path program 1 times [2020-10-14 03:53:08,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:53:08,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [515950426] [2020-10-14 03:53:08,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:53:09,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:09,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:09,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:10,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:14,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:14,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1470 [2020-10-14 03:53:14,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:53:14,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5087 [2020-10-14 03:53:14,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:14,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:14,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:14,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-14 03:53:14,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 03:53:14,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:14,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:53:14,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:14,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:14,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:14,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:53:14,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:14,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:53:14,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:14,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:14,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:14,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:14,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:14,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:14,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:53:14,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:14,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:14,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:14,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:53:14,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:14,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 03:53:14,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:14,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:14,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:53:14,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:14,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-14 03:53:14,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:14,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:53:14,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:14,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:14,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:14,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:53:14,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:14,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 03:53:14,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:14,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:14,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:14,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:53:14,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 03:53:14,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:14,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-10-14 03:53:14,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:14,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:14,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:14,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:53:14,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:14,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-14 03:53:14,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:14,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:14,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:14,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 03:53:14,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:14,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:14,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:53:14,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:14,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:14,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:14,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:53:14,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:14,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:53:14,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:14,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:14,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:14,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:14,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:14,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:14,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 689 [2020-10-14 03:53:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:14,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:14,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:14,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 03:53:14,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:14,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 03:53:14,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:14,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:14,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:14,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 03:53:14,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:14,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:14,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 763 [2020-10-14 03:53:14,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:14,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:15,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:15,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:53:15,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:15,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-10-14 03:53:15,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:15,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:15,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:15,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 03:53:15,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:15,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:15,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1036 [2020-10-14 03:53:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:15,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:15,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:15,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 325 [2020-10-14 03:53:15,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:15,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-14 03:53:15,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:15,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:15,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:15,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 322 [2020-10-14 03:53:15,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:15,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:15,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:53:15,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:15,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:15,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:15,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 03:53:15,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:15,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 03:53:15,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:15,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:15,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:15,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:15,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:15,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:15,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1358 [2020-10-14 03:53:15,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:15,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:15,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:15,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:53:15,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:15,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 03:53:15,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:15,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:15,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:15,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 03:53:15,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:15,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:16,260 INFO L134 CoverageAnalysis]: Checked inductivity of 2952 backedges. 237 proven. 478 refuted. 0 times theorem prover too weak. 2237 trivial. 0 not checked. [2020-10-14 03:53:16,261 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [515950426] [2020-10-14 03:53:16,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:53:16,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:53:16,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859656183] [2020-10-14 03:53:16,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:53:16,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:53:16,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:53:16,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:53:16,263 INFO L87 Difference]: Start difference. First operand 20813 states and 21697 transitions. Second operand 7 states. [2020-10-14 03:53:19,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:53:19,345 INFO L93 Difference]: Finished difference Result 41979 states and 43858 transitions. [2020-10-14 03:53:19,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:53:19,346 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1444 [2020-10-14 03:53:19,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:53:19,384 INFO L225 Difference]: With dead ends: 41979 [2020-10-14 03:53:19,385 INFO L226 Difference]: Without dead ends: 21850 [2020-10-14 03:53:19,404 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:53:19,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21850 states. [2020-10-14 03:53:19,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21850 to 21485. [2020-10-14 03:53:19,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21485 states. [2020-10-14 03:53:19,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21485 states to 21485 states and 22316 transitions. [2020-10-14 03:53:19,600 INFO L78 Accepts]: Start accepts. Automaton has 21485 states and 22316 transitions. Word has length 1444 [2020-10-14 03:53:19,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:53:19,601 INFO L479 AbstractCegarLoop]: Abstraction has 21485 states and 22316 transitions. [2020-10-14 03:53:19,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:53:19,601 INFO L276 IsEmpty]: Start isEmpty. Operand 21485 states and 22316 transitions. [2020-10-14 03:53:19,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1608 [2020-10-14 03:53:19,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:53:19,628 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:53:19,628 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 03:53:19,629 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:53:19,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:53:19,629 INFO L82 PathProgramCache]: Analyzing trace with hash -336053983, now seen corresponding path program 1 times [2020-10-14 03:53:19,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:53:19,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [42020922] [2020-10-14 03:53:19,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:53:19,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:19,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:19,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:22,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:23,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:24,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:24,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1635 [2020-10-14 03:53:24,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:53:24,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 03:53:24,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:24,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:24,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:24,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-14 03:53:24,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 03:53:24,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:24,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:53:24,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:24,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:24,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:24,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:53:24,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:24,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:53:24,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:24,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:24,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:24,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:24,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:24,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:24,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:53:24,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:24,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:24,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:24,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:53:24,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:25,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-14 03:53:25,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:25,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:25,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:53:25,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:25,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-14 03:53:25,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:25,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:53:25,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:25,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:25,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:25,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 03:53:25,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:25,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-14 03:53:25,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:25,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:25,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:25,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:53:25,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-14 03:53:25,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:25,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-14 03:53:25,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:25,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:25,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:25,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:53:25,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:25,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 03:53:25,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:25,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:25,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:25,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 03:53:25,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:25,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:25,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 525 [2020-10-14 03:53:25,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:25,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:25,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:25,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:53:25,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:25,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-14 03:53:25,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:25,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:25,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:25,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 03:53:25,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:25,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:25,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:53:25,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:25,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:25,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:25,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:53:25,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:25,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 03:53:25,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:25,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:25,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:25,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:25,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:25,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:25,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 852 [2020-10-14 03:53:25,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:25,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:25,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:25,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 03:53:25,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:25,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 03:53:25,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:25,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:25,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:25,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 03:53:25,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:25,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:25,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 926 [2020-10-14 03:53:25,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:25,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:25,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:25,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:53:25,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:25,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 03:53:25,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:25,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:25,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:25,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 03:53:25,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:25,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:25,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1199 [2020-10-14 03:53:25,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:25,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:25,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:25,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 325 [2020-10-14 03:53:25,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:25,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-14 03:53:25,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:25,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:25,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:25,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 322 [2020-10-14 03:53:25,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:25,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:25,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:53:25,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:25,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:26,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:26,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 03:53:26,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:26,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 03:53:26,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:26,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:26,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:26,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:26,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:26,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:26,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1521 [2020-10-14 03:53:26,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:26,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:26,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:26,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:53:26,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:26,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 03:53:26,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:26,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:26,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:26,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 03:53:26,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:26,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:27,851 INFO L134 CoverageAnalysis]: Checked inductivity of 3880 backedges. 304 proven. 734 refuted. 0 times theorem prover too weak. 2842 trivial. 0 not checked. [2020-10-14 03:53:27,851 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [42020922] [2020-10-14 03:53:27,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:53:27,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:53:27,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616802929] [2020-10-14 03:53:27,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:53:27,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:53:27,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:53:27,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:53:27,854 INFO L87 Difference]: Start difference. First operand 21485 states and 22316 transitions. Second operand 8 states. [2020-10-14 03:53:32,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:53:32,339 INFO L93 Difference]: Finished difference Result 41951 states and 43590 transitions. [2020-10-14 03:53:32,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:53:32,341 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1607 [2020-10-14 03:53:32,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:53:32,369 INFO L225 Difference]: With dead ends: 41951 [2020-10-14 03:53:32,369 INFO L226 Difference]: Without dead ends: 21487 [2020-10-14 03:53:32,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:53:32,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21487 states. [2020-10-14 03:53:32,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21487 to 21146. [2020-10-14 03:53:32,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21146 states. [2020-10-14 03:53:32,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21146 states to 21146 states and 21753 transitions. [2020-10-14 03:53:32,597 INFO L78 Accepts]: Start accepts. Automaton has 21146 states and 21753 transitions. Word has length 1607 [2020-10-14 03:53:32,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:53:32,597 INFO L479 AbstractCegarLoop]: Abstraction has 21146 states and 21753 transitions. [2020-10-14 03:53:32,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:53:32,597 INFO L276 IsEmpty]: Start isEmpty. Operand 21146 states and 21753 transitions. [2020-10-14 03:53:32,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1825 [2020-10-14 03:53:32,626 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:53:32,627 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:32,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 03:53:32,627 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:53:32,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:53:32,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1617560885, now seen corresponding path program 1 times [2020-10-14 03:53:32,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:53:32,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1779481128] [2020-10-14 03:53:32,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:53:32,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:32,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:33,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:33,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:34,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:37,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:37,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1856 [2020-10-14 03:53:37,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:53:37,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5097 [2020-10-14 03:53:37,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:37,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:37,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:37,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-14 03:53:37,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-14 03:53:37,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:38,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:53:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:38,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:38,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:38,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:53:38,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:38,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:53:38,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:38,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:38,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:38,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:38,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:38,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:38,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:53:38,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:38,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:38,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:38,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:53:38,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:38,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-14 03:53:38,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:38,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:38,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:53:38,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:38,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-14 03:53:38,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:38,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:53:38,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:38,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:38,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:38,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 03:53:38,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:38,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-14 03:53:38,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:38,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:38,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:38,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:53:38,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-14 03:53:38,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:38,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 03:53:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:38,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:38,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:38,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:53:38,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:38,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-14 03:53:38,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:38,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:38,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:38,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-14 03:53:38,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:38,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:38,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 03:53:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:38,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:38,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:38,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:53:38,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:38,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 03:53:38,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:38,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:38,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:38,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 03:53:38,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:38,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:38,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-14 03:53:38,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:38,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:38,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:38,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:53:38,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:38,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 03:53:38,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:38,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:38,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:38,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 03:53:38,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:38,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:38,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-14 03:53:38,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:38,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:39,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:39,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:53:39,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:39,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-14 03:53:39,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:39,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:39,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:39,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 03:53:39,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:39,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:39,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:53:39,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:39,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:39,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:39,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:53:39,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:39,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 03:53:39,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:39,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:39,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:39,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:39,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:39,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:39,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1050 [2020-10-14 03:53:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:39,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:39,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:39,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 03:53:39,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:39,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 03:53:39,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:39,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:39,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:39,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 03:53:39,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:39,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:39,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1124 [2020-10-14 03:53:39,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:39,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:39,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:39,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-14 03:53:39,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:39,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 03:53:39,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:39,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:39,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:39,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 301 [2020-10-14 03:53:39,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:39,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:39,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:53:39,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:39,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:39,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:39,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 03:53:39,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:39,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:53:39,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:39,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:39,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:39,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:39,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:39,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:39,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1425 [2020-10-14 03:53:39,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:39,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:39,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:39,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:53:39,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:39,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 03:53:39,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:39,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:39,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:39,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 03:53:39,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:39,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:39,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1640 [2020-10-14 03:53:39,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:39,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:39,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:39,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-14 03:53:39,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:39,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 03:53:39,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:39,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:39,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:39,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-14 03:53:39,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:39,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:41,690 INFO L134 CoverageAnalysis]: Checked inductivity of 5865 backedges. 341 proven. 1014 refuted. 0 times theorem prover too weak. 4510 trivial. 0 not checked. [2020-10-14 03:53:41,690 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1779481128] [2020-10-14 03:53:41,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:53:41,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:53:41,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680733084] [2020-10-14 03:53:41,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:53:41,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:53:41,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:53:41,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:53:41,692 INFO L87 Difference]: Start difference. First operand 21146 states and 21753 transitions. Second operand 8 states. [2020-10-14 03:53:47,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:53:47,497 INFO L93 Difference]: Finished difference Result 42594 states and 44344 transitions. [2020-10-14 03:53:47,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 03:53:47,498 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1824 [2020-10-14 03:53:47,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:53:47,533 INFO L225 Difference]: With dead ends: 42594 [2020-10-14 03:53:47,533 INFO L226 Difference]: Without dead ends: 22469 [2020-10-14 03:53:47,554 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-14 03:53:47,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22469 states. [2020-10-14 03:53:47,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22469 to 20133. [2020-10-14 03:53:47,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20133 states. [2020-10-14 03:53:47,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20133 states to 20133 states and 20680 transitions. [2020-10-14 03:53:47,763 INFO L78 Accepts]: Start accepts. Automaton has 20133 states and 20680 transitions. Word has length 1824 [2020-10-14 03:53:47,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:53:47,763 INFO L479 AbstractCegarLoop]: Abstraction has 20133 states and 20680 transitions. [2020-10-14 03:53:47,763 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:53:47,763 INFO L276 IsEmpty]: Start isEmpty. Operand 20133 states and 20680 transitions. [2020-10-14 03:53:47,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1886 [2020-10-14 03:53:47,794 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:53:47,795 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:47,795 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 03:53:47,796 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:53:47,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:53:47,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1853203218, now seen corresponding path program 1 times [2020-10-14 03:53:47,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:53:47,796 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1712314922] [2020-10-14 03:53:47,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:53:47,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:48,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:48,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:48,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:49,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:50,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:53,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:53,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1917 [2020-10-14 03:53:53,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:53:53,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5098 [2020-10-14 03:53:53,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:53,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:53,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:53,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1503 [2020-10-14 03:53:53,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 221 [2020-10-14 03:53:53,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:53,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:53:53,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:53,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:53,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:53,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:53:53,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:53,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:53:53,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:53,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:53,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:53,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:53,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:53,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:53,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:53:53,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:53,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:53,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:53,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:53:53,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:53,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 03:53:53,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:53,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:53,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:53,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:53,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:53,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:53,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:53:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:53,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:53,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:53,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 03:53:53,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:53,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 03:53:53,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:53,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:53,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:53,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:53,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:53,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:53,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 03:53:53,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:53,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:53,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:53,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:53:53,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:53,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 03:53:53,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:53,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:53,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:53,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:53,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:53,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:53,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 03:53:53,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:53,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:53,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:53,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:53:53,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:53,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 03:53:53,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:53,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:53,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:53,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:53,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:53,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:53,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-14 03:53:53,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:53,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:53,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:53,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:53:53,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:53,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 03:53:53,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:53,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:53,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:53,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:53,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:53,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:53,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-14 03:53:53,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:53,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:53,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:53,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:53:53,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:53,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 03:53:53,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:53,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:53,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:53,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:53,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:53,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:53,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:53:53,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:53,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:53,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:53,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:53:53,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:53,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 03:53:53,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:53,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:53,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:53,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:53,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:53,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:53,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1111 [2020-10-14 03:53:53,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:53,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:53,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:53,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 03:53:53,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:53,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 03:53:53,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:53,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:53,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:53,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:53,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:53,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:53,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1185 [2020-10-14 03:53:53,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:54,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:54,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:54,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-14 03:53:54,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:54,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 03:53:54,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:54,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:54,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:53:54,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:54,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 295 [2020-10-14 03:53:54,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:54,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:53:54,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:54,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:54,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:54,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 03:53:54,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:54,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 03:53:54,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:54,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:54,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:53:54,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:54,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 03:53:54,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:54,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1486 [2020-10-14 03:53:54,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:54,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:54,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:54,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:53:54,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:54,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-14 03:53:54,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:54,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:54,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:54,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:53:54,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-14 03:53:54,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:54,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1701 [2020-10-14 03:53:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:54,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:54,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:54,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-14 03:53:54,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:54,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 03:53:54,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:54,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:54,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:54,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-14 03:53:54,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:54,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0