/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_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 03:39:25,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 03:39:25,444 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 03:39:25,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 03:39:25,485 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 03:39:25,493 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 03:39:25,495 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 03:39:25,498 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 03:39:25,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 03:39:25,502 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 03:39:25,504 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 03:39:25,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 03:39:25,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 03:39:25,510 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 03:39:25,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 03:39:25,514 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 03:39:25,516 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 03:39:25,517 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 03:39:25,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 03:39:25,527 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 03:39:25,529 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 03:39:25,530 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 03:39:25,531 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 03:39:25,532 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 03:39:25,544 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 03:39:25,544 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 03:39:25,545 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 03:39:25,545 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 03:39:25,546 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 03:39:25,548 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 03:39:25,548 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 03:39:25,549 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 03:39:25,550 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 03:39:25,550 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 03:39:25,552 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 03:39:25,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 03:39:25,553 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 03:39:25,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 03:39:25,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 03:39:25,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 03:39:25,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 03:39:25,556 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 03:39:25,603 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 03:39:25,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 03:39:25,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 03:39:25,605 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 03:39:25,606 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 03:39:25,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 03:39:25,606 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 03:39:25,607 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 03:39:25,607 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 03:39:25,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 03:39:25,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 03:39:25,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 03:39:25,608 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 03:39:25,609 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 03:39:25,609 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 03:39:25,609 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 03:39:25,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 03:39:25,610 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 03:39:25,610 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 03:39:25,610 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 03:39:25,610 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 03:39:25,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 03:39:25,611 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 03:39:25,611 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 03:39:25,611 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 03:39:25,611 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 03:39:25,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 03:39:25,612 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 03:39:25,612 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 03:39:25,612 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 03:39:25,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 03:39:25,923 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 03:39:25,926 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 03:39:25,928 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 03:39:25,928 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 03:39:25,929 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label05.c [2020-10-14 03:39:25,996 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1798067fa/059d15a202e545f2a9d150535937f554/FLAG35b46b26f [2020-10-14 03:39:26,649 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 03:39:26,653 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label05.c [2020-10-14 03:39:26,674 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1798067fa/059d15a202e545f2a9d150535937f554/FLAG35b46b26f [2020-10-14 03:39:26,789 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1798067fa/059d15a202e545f2a9d150535937f554 [2020-10-14 03:39:26,800 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 03:39:26,802 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 03:39:26,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 03:39:26,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 03:39:26,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 03:39:26,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:39:26" (1/1) ... [2020-10-14 03:39:26,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bee85d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:26, skipping insertion in model container [2020-10-14 03:39:26,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:39:26" (1/1) ... [2020-10-14 03:39:26,823 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 03:39:26,909 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 03:39:27,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:39:27,735 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 03:39:28,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:39:28,112 INFO L208 MainTranslator]: Completed translation [2020-10-14 03:39:28,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:28 WrapperNode [2020-10-14 03:39:28,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 03:39:28,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 03:39:28,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 03:39:28,117 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 03:39:28,140 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:28" (1/1) ... [2020-10-14 03:39:28,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:28" (1/1) ... [2020-10-14 03:39:28,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:28" (1/1) ... [2020-10-14 03:39:28,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:28" (1/1) ... [2020-10-14 03:39:28,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:28" (1/1) ... [2020-10-14 03:39:28,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:28" (1/1) ... [2020-10-14 03:39:28,292 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:28" (1/1) ... [2020-10-14 03:39:28,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 03:39:28,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 03:39:28,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 03:39:28,312 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 03:39:28,313 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:28" (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 03:39:28,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 03:39:28,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 03:39:28,397 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 03:39:28,397 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 03:39:28,397 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 03:39:28,398 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 03:39:28,398 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 03:39:28,398 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 03:39:28,398 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 03:39:28,398 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 03:39:28,399 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 03:39:28,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 03:39:28,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 03:39:32,917 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 03:39:32,917 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 03:39:32,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:39:32 BoogieIcfgContainer [2020-10-14 03:39:32,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 03:39:32,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 03:39:32,927 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 03:39:32,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 03:39:32,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:39:26" (1/3) ... [2020-10-14 03:39:32,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@102c8d88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:39:32, skipping insertion in model container [2020-10-14 03:39:32,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:28" (2/3) ... [2020-10-14 03:39:32,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@102c8d88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:39:32, skipping insertion in model container [2020-10-14 03:39:32,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:39:32" (3/3) ... [2020-10-14 03:39:32,935 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label05.c [2020-10-14 03:39:32,946 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 03:39:32,954 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 03:39:32,969 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 03:39:32,998 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 03:39:32,998 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 03:39:32,998 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 03:39:32,998 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 03:39:32,999 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 03:39:32,999 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 03:39:32,999 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 03:39:32,999 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 03:39:33,027 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 03:39:33,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-14 03:39:33,035 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:39:33,036 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:39:33,036 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:39:33,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:39:33,043 INFO L82 PathProgramCache]: Analyzing trace with hash 521251962, now seen corresponding path program 1 times [2020-10-14 03:39:33,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:39:33,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1211935592] [2020-10-14 03:39:33,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:39:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:33,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:33,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:33,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 03:39:33,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:33,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 358 [2020-10-14 03:39:33,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:33,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:33,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:39:33,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 03:39:33,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 03:39:33,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-14 03:39:33,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:39:33,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:33,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:33,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:33,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:39:33,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:33,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 03:39:33,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:33,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:33,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:39:33,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:39:33,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:39:33,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:39:33,745 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 03:39:33,745 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1211935592] [2020-10-14 03:39:33,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 03:39:33,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 03:39:33,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413036678] [2020-10-14 03:39:33,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 03:39:33,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:39:33,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 03:39:33,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 03:39:33,776 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-14 03:39:37,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:39:37,803 INFO L93 Difference]: Finished difference Result 1169 states and 2165 transitions. [2020-10-14 03:39:37,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:39:37,805 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-10-14 03:39:37,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:39:37,825 INFO L225 Difference]: With dead ends: 1169 [2020-10-14 03:39:37,825 INFO L226 Difference]: Without dead ends: 696 [2020-10-14 03:39:37,834 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 03:39:37,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-14 03:39:37,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 689. [2020-10-14 03:39:37,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-10-14 03:39:37,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1077 transitions. [2020-10-14 03:39:37,939 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1077 transitions. Word has length 25 [2020-10-14 03:39:37,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:39:37,940 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 1077 transitions. [2020-10-14 03:39:37,940 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 03:39:37,941 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1077 transitions. [2020-10-14 03:39:37,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-14 03:39:37,948 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:39:37,948 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:39:37,949 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 03:39:37,949 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:39:37,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:39:37,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1195239347, now seen corresponding path program 1 times [2020-10-14 03:39:37,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:39:37,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1219647692] [2020-10-14 03:39:37,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:39:38,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:38,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:38,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:38,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:38,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 03:39:38,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:39:38,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 799 [2020-10-14 03:39:38,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:38,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:38,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:39:38,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 03:39:38,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 03:39:38,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:39:38,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:39:38,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:38,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:38,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:38,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:39:38,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:38,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:39:38,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:38,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:38,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:39:38,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:39:38,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:39:38,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:39:38,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:39:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:38,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:39,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:39,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 03:39:39,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:39,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 03:39:39,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:39,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:39,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:39:39,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:39:39,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 03:39:39,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-14 03:39:39,149 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:39:39,149 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1219647692] [2020-10-14 03:39:39,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:39:39,150 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 03:39:39,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501508716] [2020-10-14 03:39:39,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 03:39:39,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:39:39,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 03:39:39,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:39:39,153 INFO L87 Difference]: Start difference. First operand 689 states and 1077 transitions. Second operand 6 states. [2020-10-14 03:39:44,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:39:44,774 INFO L93 Difference]: Finished difference Result 2744 states and 4355 transitions. [2020-10-14 03:39:44,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 03:39:44,775 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 100 [2020-10-14 03:39:44,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:39:44,788 INFO L225 Difference]: With dead ends: 2744 [2020-10-14 03:39:44,788 INFO L226 Difference]: Without dead ends: 2061 [2020-10-14 03:39:44,791 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 03:39:44,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2061 states. [2020-10-14 03:39:44,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2061 to 2057. [2020-10-14 03:39:44,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2057 states. [2020-10-14 03:39:44,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2057 states to 2057 states and 2927 transitions. [2020-10-14 03:39:44,877 INFO L78 Accepts]: Start accepts. Automaton has 2057 states and 2927 transitions. Word has length 100 [2020-10-14 03:39:44,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:39:44,878 INFO L479 AbstractCegarLoop]: Abstraction has 2057 states and 2927 transitions. [2020-10-14 03:39:44,878 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 03:39:44,878 INFO L276 IsEmpty]: Start isEmpty. Operand 2057 states and 2927 transitions. [2020-10-14 03:39:44,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-10-14 03:39:44,886 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:39:44,886 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 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 03:39:44,886 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 03:39:44,887 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:39:44,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:39:44,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1611973385, now seen corresponding path program 1 times [2020-10-14 03:39:44,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:39:44,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [117374956] [2020-10-14 03:39:44,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:39:44,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:44,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:45,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:45,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:45,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:46,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:47,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:47,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-10-14 03:39:47,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:39:47,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2634 [2020-10-14 03:39:47,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:47,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:47,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:39:47,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-14 03:39:47,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 03:39:47,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:39:47,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:39:47,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:47,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:47,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:47,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:39:47,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:47,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:39:47,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:47,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:47,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:39:47,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:39:47,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:39:47,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:39:47,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:39:47,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:47,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:47,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:47,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 03:39:47,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:47,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 03:39:47,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:47,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:47,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:39:47,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:39:47,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 03:39:47,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:39:47,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 03:39:47,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:47,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:47,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:47,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:39:47,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:47,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-14 03:39:47,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:47,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:47,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:39:47,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:39:47,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 03:39:47,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:39:48,085 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 105 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:39:48,086 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [117374956] [2020-10-14 03:39:48,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:39:48,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:39:48,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653218328] [2020-10-14 03:39:48,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:39:48,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:39:48,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:39:48,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:39:48,089 INFO L87 Difference]: Start difference. First operand 2057 states and 2927 transitions. Second operand 8 states. [2020-10-14 03:39:54,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:39:54,672 INFO L93 Difference]: Finished difference Result 6222 states and 9337 transitions. [2020-10-14 03:39:54,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 03:39:54,677 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 188 [2020-10-14 03:39:54,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:39:54,707 INFO L225 Difference]: With dead ends: 6222 [2020-10-14 03:39:54,707 INFO L226 Difference]: Without dead ends: 4171 [2020-10-14 03:39:54,713 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-14 03:39:54,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4171 states. [2020-10-14 03:39:54,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4171 to 4150. [2020-10-14 03:39:54,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4150 states. [2020-10-14 03:39:54,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4150 states to 4150 states and 5831 transitions. [2020-10-14 03:39:54,858 INFO L78 Accepts]: Start accepts. Automaton has 4150 states and 5831 transitions. Word has length 188 [2020-10-14 03:39:54,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:39:54,862 INFO L479 AbstractCegarLoop]: Abstraction has 4150 states and 5831 transitions. [2020-10-14 03:39:54,862 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:39:54,862 INFO L276 IsEmpty]: Start isEmpty. Operand 4150 states and 5831 transitions. [2020-10-14 03:39:54,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-10-14 03:39:54,871 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:39:54,871 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:39:54,872 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 03:39:54,872 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:39:54,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:39:54,873 INFO L82 PathProgramCache]: Analyzing trace with hash -535699510, now seen corresponding path program 1 times [2020-10-14 03:39:54,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:39:54,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [351643966] [2020-10-14 03:39:54,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:39:54,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:54,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:55,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:55,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:56,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:58,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:58,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-10-14 03:39:58,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:39:58,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3719 [2020-10-14 03:39:58,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:58,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:58,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:39:58,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:39:58,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:39:58,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:39:58,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:39:58,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:58,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:58,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:58,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:39:58,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:58,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 03:39:58,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:58,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:58,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:39:58,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:39:58,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:39:58,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:39:58,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:39:58,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:58,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:58,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:58,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:39:58,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:58,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 03:39:58,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:58,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:58,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:39:58,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:39:58,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 03:39:58,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:39:58,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 03:39:58,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:58,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:59,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:59,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:39:59,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:59,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-14 03:39:59,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:59,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:59,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:39:59,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:39:59,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:39:59,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:39:59,284 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 133 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:39:59,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [351643966] [2020-10-14 03:39:59,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:39:59,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:39:59,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051692044] [2020-10-14 03:39:59,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:39:59,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:39:59,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:39:59,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:39:59,289 INFO L87 Difference]: Start difference. First operand 4150 states and 5831 transitions. Second operand 7 states. [2020-10-14 03:40:03,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:40:03,592 INFO L93 Difference]: Finished difference Result 9345 states and 13106 transitions. [2020-10-14 03:40:03,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:40:03,593 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 269 [2020-10-14 03:40:03,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:40:03,619 INFO L225 Difference]: With dead ends: 9345 [2020-10-14 03:40:03,619 INFO L226 Difference]: Without dead ends: 5201 [2020-10-14 03:40:03,630 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 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 03:40:03,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5201 states. [2020-10-14 03:40:03,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5201 to 5182. [2020-10-14 03:40:03,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5182 states. [2020-10-14 03:40:03,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5182 states to 5182 states and 7052 transitions. [2020-10-14 03:40:03,755 INFO L78 Accepts]: Start accepts. Automaton has 5182 states and 7052 transitions. Word has length 269 [2020-10-14 03:40:03,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:40:03,756 INFO L479 AbstractCegarLoop]: Abstraction has 5182 states and 7052 transitions. [2020-10-14 03:40:03,757 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:40:03,757 INFO L276 IsEmpty]: Start isEmpty. Operand 5182 states and 7052 transitions. [2020-10-14 03:40:03,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2020-10-14 03:40:03,764 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:40:03,765 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:40:03,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 03:40:03,765 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:40:03,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:40:03,766 INFO L82 PathProgramCache]: Analyzing trace with hash -101862530, now seen corresponding path program 1 times [2020-10-14 03:40:03,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:40:03,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1628282171] [2020-10-14 03:40:03,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:40:03,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:03,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:04,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:04,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:04,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:06,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:06,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 349 [2020-10-14 03:40:06,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:40:06,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2652 [2020-10-14 03:40:06,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:06,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:06,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:06,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-14 03:40:06,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 224 [2020-10-14 03:40:06,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:06,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:40:06,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:06,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:06,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:06,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:40:06,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:06,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:40:06,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:06,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:06,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:40:06,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:06,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:40:06,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:06,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:40:06,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:06,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:06,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:06,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 03:40:06,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:06,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 03:40:06,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:06,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:06,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:40:06,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:06,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 03:40:06,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:06,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 03:40:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:06,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:06,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:06,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-14 03:40:06,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:06,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-10-14 03:40:06,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:06,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:06,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:06,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:40:06,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 222 [2020-10-14 03:40:06,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:07,415 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 124 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:40:07,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1628282171] [2020-10-14 03:40:07,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:40:07,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:40:07,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731932486] [2020-10-14 03:40:07,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:40:07,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:40:07,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:40:07,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:40:07,419 INFO L87 Difference]: Start difference. First operand 5182 states and 7052 transitions. Second operand 7 states. [2020-10-14 03:40:12,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:40:12,396 INFO L93 Difference]: Finished difference Result 12789 states and 17597 transitions. [2020-10-14 03:40:12,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:40:12,397 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 337 [2020-10-14 03:40:12,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:40:12,426 INFO L225 Difference]: With dead ends: 12789 [2020-10-14 03:40:12,426 INFO L226 Difference]: Without dead ends: 6906 [2020-10-14 03:40:12,440 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 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 03:40:12,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6906 states. [2020-10-14 03:40:12,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6906 to 5524. [2020-10-14 03:40:12,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5524 states. [2020-10-14 03:40:12,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5524 states to 5524 states and 6230 transitions. [2020-10-14 03:40:12,577 INFO L78 Accepts]: Start accepts. Automaton has 5524 states and 6230 transitions. Word has length 337 [2020-10-14 03:40:12,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:40:12,578 INFO L479 AbstractCegarLoop]: Abstraction has 5524 states and 6230 transitions. [2020-10-14 03:40:12,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:40:12,578 INFO L276 IsEmpty]: Start isEmpty. Operand 5524 states and 6230 transitions. [2020-10-14 03:40:12,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2020-10-14 03:40:12,587 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:40:12,587 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 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 03:40:12,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 03:40:12,588 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:40:12,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:40:12,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1484549673, now seen corresponding path program 1 times [2020-10-14 03:40:12,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:40:12,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1150616143] [2020-10-14 03:40:12,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:40:12,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:12,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:12,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:14,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:14,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:17,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:17,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 412 [2020-10-14 03:40:17,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:40:17,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-14 03:40:17,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:17,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:17,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:17,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 241 [2020-10-14 03:40:17,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:40:17,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:17,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:40:17,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:17,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:17,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:17,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:40:17,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:17,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:40:17,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:17,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:17,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:40:17,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:17,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:40:17,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:17,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:40:17,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:17,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:17,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:17,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:40:17,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:17,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 03:40:17,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:17,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:17,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:40:17,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:17,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:40:17,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:17,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 03:40:17,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:17,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:17,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:17,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:40:17,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:17,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 03:40:17,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:17,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:17,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:40:17,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:17,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 03:40:17,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:18,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-14 03:40:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:18,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:18,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:18,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:40:18,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:18,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-14 03:40:18,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:18,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:18,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:18,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:40:18,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:40:18,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:18,497 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 282 proven. 2 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2020-10-14 03:40:18,497 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1150616143] [2020-10-14 03:40:18,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:40:18,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:40:18,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409605070] [2020-10-14 03:40:18,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:40:18,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:40:18,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:40:18,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:40:18,500 INFO L87 Difference]: Start difference. First operand 5524 states and 6230 transitions. Second operand 7 states. [2020-10-14 03:40:21,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:40:21,462 INFO L93 Difference]: Finished difference Result 12437 states and 14120 transitions. [2020-10-14 03:40:21,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:40:21,462 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 398 [2020-10-14 03:40:21,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:40:21,500 INFO L225 Difference]: With dead ends: 12437 [2020-10-14 03:40:21,501 INFO L226 Difference]: Without dead ends: 6919 [2020-10-14 03:40:21,514 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:40:21,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6919 states. [2020-10-14 03:40:21,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6919 to 6899. [2020-10-14 03:40:21,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6899 states. [2020-10-14 03:40:21,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6899 states to 6899 states and 7655 transitions. [2020-10-14 03:40:21,670 INFO L78 Accepts]: Start accepts. Automaton has 6899 states and 7655 transitions. Word has length 398 [2020-10-14 03:40:21,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:40:21,671 INFO L479 AbstractCegarLoop]: Abstraction has 6899 states and 7655 transitions. [2020-10-14 03:40:21,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:40:21,671 INFO L276 IsEmpty]: Start isEmpty. Operand 6899 states and 7655 transitions. [2020-10-14 03:40:21,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2020-10-14 03:40:21,685 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:40:21,685 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:40:21,686 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 03:40:21,686 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:40:21,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:40:21,686 INFO L82 PathProgramCache]: Analyzing trace with hash 2036236454, now seen corresponding path program 1 times [2020-10-14 03:40:21,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:40:21,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1044010665] [2020-10-14 03:40:21,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:40:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:21,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:21,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:22,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:22,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:25,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:26,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:26,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 501 [2020-10-14 03:40:26,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:40:26,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 03:40:26,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:26,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:26,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:26,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 330 [2020-10-14 03:40:26,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:40:26,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:26,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:40:26,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:26,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:26,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:26,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:40:26,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:26,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:40:26,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:26,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:26,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:40:26,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:26,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:40:26,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:26,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:40:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:26,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:27,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:27,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:40:27,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:27,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 03:40:27,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:27,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:27,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:40:27,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:27,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:40:27,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:27,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:40:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:27,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:27,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:27,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:40:27,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:27,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 03:40:27,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:27,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:27,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:40:27,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:27,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:40:27,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:27,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 03:40:27,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:27,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:27,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:27,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:40:27,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:27,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-14 03:40:27,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:27,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:27,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:27,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:40:27,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:40:27,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:27,694 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 266 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-10-14 03:40:27,694 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1044010665] [2020-10-14 03:40:27,694 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:40:27,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:40:27,695 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386563663] [2020-10-14 03:40:27,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:40:27,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:40:27,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:40:27,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:40:27,697 INFO L87 Difference]: Start difference. First operand 6899 states and 7655 transitions. Second operand 7 states. [2020-10-14 03:40:31,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:40:31,507 INFO L93 Difference]: Finished difference Result 18709 states and 21773 transitions. [2020-10-14 03:40:31,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:40:31,508 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 487 [2020-10-14 03:40:31,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:40:31,553 INFO L225 Difference]: With dead ends: 18709 [2020-10-14 03:40:31,554 INFO L226 Difference]: Without dead ends: 11473 [2020-10-14 03:40:31,584 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:40:31,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11473 states. [2020-10-14 03:40:31,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11473 to 11317. [2020-10-14 03:40:31,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11317 states. [2020-10-14 03:40:31,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11317 states to 11317 states and 12555 transitions. [2020-10-14 03:40:31,925 INFO L78 Accepts]: Start accepts. Automaton has 11317 states and 12555 transitions. Word has length 487 [2020-10-14 03:40:31,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:40:31,926 INFO L479 AbstractCegarLoop]: Abstraction has 11317 states and 12555 transitions. [2020-10-14 03:40:31,926 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:40:31,926 INFO L276 IsEmpty]: Start isEmpty. Operand 11317 states and 12555 transitions. [2020-10-14 03:40:31,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2020-10-14 03:40:31,947 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:40:31,948 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:40:31,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 03:40:31,948 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:40:31,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:40:31,949 INFO L82 PathProgramCache]: Analyzing trace with hash 607768562, now seen corresponding path program 1 times [2020-10-14 03:40:31,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:40:31,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [24680408] [2020-10-14 03:40:31,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:40:32,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:32,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:32,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:32,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:32,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:37,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:37,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:37,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 619 [2020-10-14 03:40:37,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:40:37,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5085 [2020-10-14 03:40:37,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:37,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:37,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:37,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 330 [2020-10-14 03:40:37,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:40:37,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:37,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:40:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:37,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:37,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:37,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:40:37,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:37,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:40:37,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:37,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:37,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:40:37,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:37,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:40:37,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:37,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:40:37,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:37,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:37,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:37,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:40:37,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:37,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 03:40:37,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:37,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:37,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:40:37,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:37,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:40:37,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:37,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:40:37,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:37,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:37,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:37,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:40:37,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:37,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 03:40:37,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:37,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:37,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:40:37,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:37,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:40:37,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:37,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 03:40:37,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:37,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:37,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:37,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:40:37,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:37,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-10-14 03:40:37,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:37,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:37,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:37,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:40:37,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:40:37,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:38,446 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 371 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-10-14 03:40:38,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [24680408] [2020-10-14 03:40:38,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:40:38,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:40:38,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111703197] [2020-10-14 03:40:38,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:40:38,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:40:38,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:40:38,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:40:38,448 INFO L87 Difference]: Start difference. First operand 11317 states and 12555 transitions. Second operand 7 states. [2020-10-14 03:40:42,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:40:42,210 INFO L93 Difference]: Finished difference Result 23329 states and 25864 transitions. [2020-10-14 03:40:42,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 03:40:42,212 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 605 [2020-10-14 03:40:42,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:40:42,248 INFO L225 Difference]: With dead ends: 23329 [2020-10-14 03:40:42,248 INFO L226 Difference]: Without dead ends: 12018 [2020-10-14 03:40:42,270 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:40:42,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12018 states. [2020-10-14 03:40:42,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12018 to 11667. [2020-10-14 03:40:42,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11667 states. [2020-10-14 03:40:42,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11667 states to 11667 states and 12932 transitions. [2020-10-14 03:40:42,488 INFO L78 Accepts]: Start accepts. Automaton has 11667 states and 12932 transitions. Word has length 605 [2020-10-14 03:40:42,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:40:42,490 INFO L479 AbstractCegarLoop]: Abstraction has 11667 states and 12932 transitions. [2020-10-14 03:40:42,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:40:42,490 INFO L276 IsEmpty]: Start isEmpty. Operand 11667 states and 12932 transitions. [2020-10-14 03:40:42,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2020-10-14 03:40:42,516 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:40:42,517 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:40:42,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 03:40:42,517 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:40:42,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:40:42,518 INFO L82 PathProgramCache]: Analyzing trace with hash -451203921, now seen corresponding path program 1 times [2020-10-14 03:40:42,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:40:42,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [420377540] [2020-10-14 03:40:42,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:40:42,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:42,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:42,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:43,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:43,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:47,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:47,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:47,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 620 [2020-10-14 03:40:47,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:40:47,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-14 03:40:47,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:47,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:47,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:47,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 331 [2020-10-14 03:40:47,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:40:47,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:47,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:40:47,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:47,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:47,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:47,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:40:47,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:47,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:40:47,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:47,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:47,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:40:47,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:47,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:40:47,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:47,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:40:47,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:47,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:47,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:47,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:40:47,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:47,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 03:40:47,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:47,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:47,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:40:47,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:47,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:40:47,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:48,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:40:48,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:48,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:48,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:48,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:40:48,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:48,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 03:40:48,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:48,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:48,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:40:48,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:48,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 03:40:48,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:48,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-14 03:40:48,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:48,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:48,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:48,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:40:48,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:48,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-14 03:40:48,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:48,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:48,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:48,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:40:48,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:40:48,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:49,031 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 372 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-14 03:40:49,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [420377540] [2020-10-14 03:40:49,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:40:49,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:40:49,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714045217] [2020-10-14 03:40:49,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:40:49,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:40:49,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:40:49,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:40:49,034 INFO L87 Difference]: Start difference. First operand 11667 states and 12932 transitions. Second operand 8 states. [2020-10-14 03:40:54,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:40:54,720 INFO L93 Difference]: Finished difference Result 27081 states and 30156 transitions. [2020-10-14 03:40:54,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 03:40:54,721 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 606 [2020-10-14 03:40:54,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:40:54,774 INFO L225 Difference]: With dead ends: 27081 [2020-10-14 03:40:54,774 INFO L226 Difference]: Without dead ends: 15081 [2020-10-14 03:40:54,802 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-10-14 03:40:54,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15081 states. [2020-10-14 03:40:55,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15081 to 14728. [2020-10-14 03:40:55,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14728 states. [2020-10-14 03:40:55,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14728 states to 14728 states and 16230 transitions. [2020-10-14 03:40:55,088 INFO L78 Accepts]: Start accepts. Automaton has 14728 states and 16230 transitions. Word has length 606 [2020-10-14 03:40:55,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:40:55,089 INFO L479 AbstractCegarLoop]: Abstraction has 14728 states and 16230 transitions. [2020-10-14 03:40:55,089 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:40:55,090 INFO L276 IsEmpty]: Start isEmpty. Operand 14728 states and 16230 transitions. [2020-10-14 03:40:55,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2020-10-14 03:40:55,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:40:55,113 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:40:55,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 03:40:55,114 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:40:55,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:40:55,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1627153082, now seen corresponding path program 1 times [2020-10-14 03:40:55,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:40:55,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1556741626] [2020-10-14 03:40:55,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:40:55,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:55,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:55,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:55,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:56,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:58,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:00,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:00,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 645 [2020-10-14 03:41:00,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:41:00,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-14 03:41:00,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:00,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:00,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:41:00,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 356 [2020-10-14 03:41:00,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:41:00,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:00,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:41:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:00,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:00,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:00,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:41:00,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:00,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:41:00,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:00,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:00,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:00,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:00,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:00,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:00,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:41:00,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:00,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:00,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:00,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:41:00,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:00,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 03:41:00,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:00,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:00,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:00,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:00,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:00,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:41:00,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:41:00,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:00,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:00,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:00,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:41:00,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:00,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 03:41:00,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:00,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:00,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:41:00,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:00,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 03:41:00,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:00,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 03:41:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:00,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:00,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:00,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:41:00,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:00,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 359 [2020-10-14 03:41:00,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:00,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:00,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:41:00,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:41:00,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:41:00,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:41:02,008 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 397 proven. 2 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-10-14 03:41:02,009 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1556741626] [2020-10-14 03:41:02,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:41:02,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:41:02,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791379182] [2020-10-14 03:41:02,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:41:02,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:41:02,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:41:02,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:41:02,011 INFO L87 Difference]: Start difference. First operand 14728 states and 16230 transitions. Second operand 7 states. [2020-10-14 03:41:06,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:41:06,163 INFO L93 Difference]: Finished difference Result 32516 states and 36019 transitions. [2020-10-14 03:41:06,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:41:06,164 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 631 [2020-10-14 03:41:06,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:41:06,217 INFO L225 Difference]: With dead ends: 32516 [2020-10-14 03:41:06,218 INFO L226 Difference]: Without dead ends: 17794 [2020-10-14 03:41:06,245 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:41:06,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17794 states. [2020-10-14 03:41:06,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17794 to 16775. [2020-10-14 03:41:06,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16775 states. [2020-10-14 03:41:06,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16775 states to 16775 states and 18658 transitions. [2020-10-14 03:41:06,574 INFO L78 Accepts]: Start accepts. Automaton has 16775 states and 18658 transitions. Word has length 631 [2020-10-14 03:41:06,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:41:06,575 INFO L479 AbstractCegarLoop]: Abstraction has 16775 states and 18658 transitions. [2020-10-14 03:41:06,575 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:41:06,576 INFO L276 IsEmpty]: Start isEmpty. Operand 16775 states and 18658 transitions. [2020-10-14 03:41:06,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 690 [2020-10-14 03:41:06,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:41:06,610 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:41:06,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 03:41:06,611 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:41:06,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:41:06,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1821463334, now seen corresponding path program 1 times [2020-10-14 03:41:06,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:41:06,612 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [127481168] [2020-10-14 03:41:06,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:41:06,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:06,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:06,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:08,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:11,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:11,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 703 [2020-10-14 03:41:11,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:41:11,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-14 03:41:11,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:11,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:11,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:41:11,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 03:41:11,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-10-14 03:41:11,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:41:11,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:41:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:11,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:11,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:11,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:41:11,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:11,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:41:11,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:11,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:11,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:11,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:11,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:11,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:41:11,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:41:11,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:11,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:12,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:12,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:41:12,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:12,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-14 03:41:12,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:12,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:12,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:41:12,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:12,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-14 03:41:12,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:12,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:41:12,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:12,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:12,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:12,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 03:41:12,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:12,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-14 03:41:12,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:12,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:12,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:41:12,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:41:12,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-14 03:41:12,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:12,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-14 03:41:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:12,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:12,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:12,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:41:12,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:12,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 03:41:12,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:12,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:12,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:12,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 260 [2020-10-14 03:41:12,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:12,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:12,727 INFO L134 CoverageAnalysis]: Checked inductivity of 609 backedges. 208 proven. 152 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2020-10-14 03:41:12,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [127481168] [2020-10-14 03:41:12,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:41:12,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:41:12,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781417712] [2020-10-14 03:41:12,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:41:12,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:41:12,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:41:12,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:41:12,729 INFO L87 Difference]: Start difference. First operand 16775 states and 18658 transitions. Second operand 7 states. [2020-10-14 03:41:17,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:41:17,447 INFO L93 Difference]: Finished difference Result 35802 states and 40643 transitions. [2020-10-14 03:41:17,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:41:17,448 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 689 [2020-10-14 03:41:17,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:41:17,512 INFO L225 Difference]: With dead ends: 35802 [2020-10-14 03:41:17,512 INFO L226 Difference]: Without dead ends: 19033 [2020-10-14 03:41:17,537 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 03:41:17,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19033 states. [2020-10-14 03:41:17,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19033 to 19029. [2020-10-14 03:41:17,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19029 states. [2020-10-14 03:41:17,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19029 states to 19029 states and 21667 transitions. [2020-10-14 03:41:17,908 INFO L78 Accepts]: Start accepts. Automaton has 19029 states and 21667 transitions. Word has length 689 [2020-10-14 03:41:17,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:41:17,909 INFO L479 AbstractCegarLoop]: Abstraction has 19029 states and 21667 transitions. [2020-10-14 03:41:17,910 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:41:17,910 INFO L276 IsEmpty]: Start isEmpty. Operand 19029 states and 21667 transitions. [2020-10-14 03:41:17,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 738 [2020-10-14 03:41:17,954 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:41:17,956 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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 03:41:17,956 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 03:41:17,956 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:41:17,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:41:17,957 INFO L82 PathProgramCache]: Analyzing trace with hash 552154170, now seen corresponding path program 1 times [2020-10-14 03:41:17,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:41:17,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2130921526] [2020-10-14 03:41:17,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:41:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:18,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:18,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:18,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:19,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:22,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:23,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:23,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 751 [2020-10-14 03:41:23,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:41:23,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-14 03:41:23,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:23,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:23,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:41:23,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 462 [2020-10-14 03:41:23,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:41:23,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:23,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:41:23,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:23,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:23,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:23,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:41:23,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:23,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:41:23,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:23,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:23,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:23,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:23,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:23,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:23,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:41:23,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:23,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:23,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:23,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:41:23,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:23,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 03:41:23,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:23,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:23,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:23,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:23,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:23,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:23,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:41:23,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:23,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:23,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:23,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-14 03:41:23,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:23,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-14 03:41:23,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:23,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:23,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:41:23,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:23,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 196 [2020-10-14 03:41:23,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:23,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2020-10-14 03:41:23,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:23,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:23,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:23,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:41:23,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:23,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-14 03:41:23,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:23,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:23,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:41:23,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:41:23,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:41:23,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:24,232 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 503 proven. 2 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2020-10-14 03:41:24,232 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2130921526] [2020-10-14 03:41:24,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:41:24,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:41:24,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791059900] [2020-10-14 03:41:24,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:41:24,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:41:24,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:41:24,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:41:24,235 INFO L87 Difference]: Start difference. First operand 19029 states and 21667 transitions. Second operand 7 states. [2020-10-14 03:41:28,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:41:28,857 INFO L93 Difference]: Finished difference Result 41466 states and 47396 transitions. [2020-10-14 03:41:28,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:41:28,858 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 737 [2020-10-14 03:41:28,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:41:28,930 INFO L225 Difference]: With dead ends: 41466 [2020-10-14 03:41:28,931 INFO L226 Difference]: Without dead ends: 22447 [2020-10-14 03:41:28,968 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:41:28,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22447 states. [2020-10-14 03:41:29,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22447 to 22102. [2020-10-14 03:41:29,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22102 states. [2020-10-14 03:41:29,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22102 states to 22102 states and 25258 transitions. [2020-10-14 03:41:29,418 INFO L78 Accepts]: Start accepts. Automaton has 22102 states and 25258 transitions. Word has length 737 [2020-10-14 03:41:29,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:41:29,419 INFO L479 AbstractCegarLoop]: Abstraction has 22102 states and 25258 transitions. [2020-10-14 03:41:29,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:41:29,419 INFO L276 IsEmpty]: Start isEmpty. Operand 22102 states and 25258 transitions. [2020-10-14 03:41:29,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 743 [2020-10-14 03:41:29,472 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:41:29,473 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:41:29,473 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 03:41:29,473 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:41:29,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:41:29,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1732577909, now seen corresponding path program 1 times [2020-10-14 03:41:29,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:41:29,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1860403525] [2020-10-14 03:41:29,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:41:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:29,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:29,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:29,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:30,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:32,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:34,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:34,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 756 [2020-10-14 03:41:34,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:41:34,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-10-14 03:41:34,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:34,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:34,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:41:34,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 456 [2020-10-14 03:41:34,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:41:34,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:34,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:41:34,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:34,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:34,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:34,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:41:34,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:34,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:41:34,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:34,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:34,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:34,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:34,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:34,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:34,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:41:34,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:34,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:34,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:34,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:41:34,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:34,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 03:41:34,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:34,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:34,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:34,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:34,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:34,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:34,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:41:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:34,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:34,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:34,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:41:35,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:35,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 03:41:35,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:35,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:35,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:41:35,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:35,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 03:41:35,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:35,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2020-10-14 03:41:35,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:35,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:35,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:35,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:41:35,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:35,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-10-14 03:41:35,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:35,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:35,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:41:35,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:41:35,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:41:35,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:35,878 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 497 proven. 2 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2020-10-14 03:41:35,879 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1860403525] [2020-10-14 03:41:35,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:41:35,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:41:35,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916750031] [2020-10-14 03:41:35,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:41:35,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:41:35,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:41:35,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:41:35,881 INFO L87 Difference]: Start difference. First operand 22102 states and 25258 transitions. Second operand 7 states. [2020-10-14 03:41:39,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:41:39,756 INFO L93 Difference]: Finished difference Result 43869 states and 50189 transitions. [2020-10-14 03:41:39,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:41:39,757 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 742 [2020-10-14 03:41:39,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:41:39,827 INFO L225 Difference]: With dead ends: 43869 [2020-10-14 03:41:39,828 INFO L226 Difference]: Without dead ends: 22110 [2020-10-14 03:41:39,871 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:41:39,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22110 states. [2020-10-14 03:41:40,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22110 to 22102. [2020-10-14 03:41:40,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22102 states. [2020-10-14 03:41:40,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22102 states to 22102 states and 25244 transitions. [2020-10-14 03:41:40,281 INFO L78 Accepts]: Start accepts. Automaton has 22102 states and 25244 transitions. Word has length 742 [2020-10-14 03:41:40,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:41:40,281 INFO L479 AbstractCegarLoop]: Abstraction has 22102 states and 25244 transitions. [2020-10-14 03:41:40,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:41:40,282 INFO L276 IsEmpty]: Start isEmpty. Operand 22102 states and 25244 transitions. [2020-10-14 03:41:40,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 787 [2020-10-14 03:41:40,315 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:41:40,315 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:41:40,316 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 03:41:40,316 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:41:40,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:41:40,316 INFO L82 PathProgramCache]: Analyzing trace with hash -1235689761, now seen corresponding path program 1 times [2020-10-14 03:41:40,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:41:40,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [674835213] [2020-10-14 03:41:40,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:41:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:40,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:40,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:40,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:40,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:41,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:43,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:45,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:45,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 802 [2020-10-14 03:41:45,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:41:45,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-14 03:41:45,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:45,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:45,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:41:45,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 502 [2020-10-14 03:41:45,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:41:45,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:45,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:41:45,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:45,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:45,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:45,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:41:45,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:45,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:41:45,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:45,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:45,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:45,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:45,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:45,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:45,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:41:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:45,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:45,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:45,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:41:45,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:45,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:41:45,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:45,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:45,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:45,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:45,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:45,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:45,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:41:45,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:45,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:45,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:45,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:41:45,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:45,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 03:41:45,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:45,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:45,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:45,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:45,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:45,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:45,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 03:41:45,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:45,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:45,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:45,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:41:45,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:45,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 03:41:45,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:45,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:45,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:41:45,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:45,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 03:41:45,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:45,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2020-10-14 03:41:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:46,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:46,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:46,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:41:46,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:46,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-10-14 03:41:46,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:46,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:46,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:41:46,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:41:46,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:41:46,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:47,183 INFO L134 CoverageAnalysis]: Checked inductivity of 894 backedges. 561 proven. 2 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2020-10-14 03:41:47,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [674835213] [2020-10-14 03:41:47,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:41:47,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:41:47,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87926879] [2020-10-14 03:41:47,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:41:47,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:41:47,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:41:47,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:41:47,185 INFO L87 Difference]: Start difference. First operand 22102 states and 25244 transitions. Second operand 7 states. [2020-10-14 03:41:51,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:41:51,218 INFO L93 Difference]: Finished difference Result 44902 states and 51234 transitions. [2020-10-14 03:41:51,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:41:51,219 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 786 [2020-10-14 03:41:51,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:41:51,286 INFO L225 Difference]: With dead ends: 44902 [2020-10-14 03:41:51,286 INFO L226 Difference]: Without dead ends: 23143 [2020-10-14 03:41:51,322 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:41:51,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23143 states. [2020-10-14 03:41:51,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23143 to 23125. [2020-10-14 03:41:51,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23125 states. [2020-10-14 03:41:51,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23125 states to 23125 states and 26287 transitions. [2020-10-14 03:41:51,782 INFO L78 Accepts]: Start accepts. Automaton has 23125 states and 26287 transitions. Word has length 786 [2020-10-14 03:41:51,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:41:51,783 INFO L479 AbstractCegarLoop]: Abstraction has 23125 states and 26287 transitions. [2020-10-14 03:41:51,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:41:51,783 INFO L276 IsEmpty]: Start isEmpty. Operand 23125 states and 26287 transitions. [2020-10-14 03:41:51,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 869 [2020-10-14 03:41:51,820 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:41:51,824 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:41:51,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 03:41:51,824 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:41:51,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:41:51,825 INFO L82 PathProgramCache]: Analyzing trace with hash 1192513563, now seen corresponding path program 1 times [2020-10-14 03:41:51,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:41:51,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [887962863] [2020-10-14 03:41:51,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:41:51,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:51,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:52,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:54,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:57,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:57,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 886 [2020-10-14 03:41:57,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:41:57,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5089 [2020-10-14 03:41:57,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:57,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:57,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:41:57,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 274 [2020-10-14 03:41:57,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 03:41:57,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:41:57,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:41:57,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:57,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:57,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:57,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:41:57,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:57,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:41:57,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:57,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:57,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:57,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:57,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:57,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:57,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:41:57,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:57,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:57,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:57,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:41:57,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:57,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 03:41:57,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:57,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:57,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:57,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:57,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:57,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:57,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 03:41:57,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:57,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:57,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:57,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 03:41:57,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:57,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 03:41:57,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:57,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:57,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:41:57,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:57,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-14 03:41:57,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:57,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2020-10-14 03:41:57,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:57,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:57,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:57,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-14 03:41:57,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:57,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-10-14 03:41:57,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:57,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:57,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:41:57,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:41:57,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 188 [2020-10-14 03:41:57,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:57,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 457 [2020-10-14 03:41:57,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:57,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:57,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:57,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 03:41:57,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:57,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 03:41:57,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:57,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:57,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:57,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-14 03:41:57,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:57,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:41:57,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 589 [2020-10-14 03:41:57,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:57,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:58,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:58,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:41:58,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:58,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-14 03:41:58,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:58,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:58,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:58,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 260 [2020-10-14 03:41:58,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:58,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:41:58,996 INFO L134 CoverageAnalysis]: Checked inductivity of 1397 backedges. 367 proven. 315 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2020-10-14 03:41:58,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [887962863] [2020-10-14 03:41:58,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:41:58,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:41:58,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878904108] [2020-10-14 03:41:58,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:41:58,998 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:41:58,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:41:58,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:41:58,998 INFO L87 Difference]: Start difference. First operand 23125 states and 26287 transitions. Second operand 7 states. [2020-10-14 03:42:03,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:42:03,020 INFO L93 Difference]: Finished difference Result 47644 states and 54237 transitions. [2020-10-14 03:42:03,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:42:03,021 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 868 [2020-10-14 03:42:03,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:42:03,092 INFO L225 Difference]: With dead ends: 47644 [2020-10-14 03:42:03,092 INFO L226 Difference]: Without dead ends: 24862 [2020-10-14 03:42:03,135 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:42:03,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24862 states. [2020-10-14 03:42:03,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24862 to 24491. [2020-10-14 03:42:03,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24491 states. [2020-10-14 03:42:03,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24491 states to 24491 states and 27517 transitions. [2020-10-14 03:42:03,589 INFO L78 Accepts]: Start accepts. Automaton has 24491 states and 27517 transitions. Word has length 868 [2020-10-14 03:42:03,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:42:03,590 INFO L479 AbstractCegarLoop]: Abstraction has 24491 states and 27517 transitions. [2020-10-14 03:42:03,590 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:42:03,590 INFO L276 IsEmpty]: Start isEmpty. Operand 24491 states and 27517 transitions. [2020-10-14 03:42:03,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 886 [2020-10-14 03:42:03,617 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:42:03,618 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:42:03,618 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 03:42:03,619 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:42:03,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:42:03,620 INFO L82 PathProgramCache]: Analyzing trace with hash 196120270, now seen corresponding path program 1 times [2020-10-14 03:42:03,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:42:03,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1506863169] [2020-10-14 03:42:03,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:42:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:03,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:03,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:04,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:08,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:08,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 903 [2020-10-14 03:42:08,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:42:08,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-14 03:42:08,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:08,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:08,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:08,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:42:08,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 222 [2020-10-14 03:42:08,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:08,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:42:08,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:08,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:08,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:08,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:42:08,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:08,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:42:08,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:08,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:08,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:08,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:08,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:08,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:42:08,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:42:08,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:08,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:08,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:08,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:42:08,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:08,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 03:42:08,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:08,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:08,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:42:08,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:08,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 03:42:08,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:08,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 03:42:08,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:08,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:09,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:09,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-14 03:42:09,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:09,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-14 03:42:09,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:09,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:09,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:09,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:42:09,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-14 03:42:09,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:09,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-14 03:42:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:09,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:09,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:09,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 03:42:09,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:09,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:42:09,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:09,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:09,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:09,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-10-14 03:42:09,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:09,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:09,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2020-10-14 03:42:09,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:09,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:09,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:09,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:42:09,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:09,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 03:42:09,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:09,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:09,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:09,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 03:42:09,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:09,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:09,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 595 [2020-10-14 03:42:09,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:09,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:09,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:09,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:42:09,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:09,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-14 03:42:09,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:09,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:09,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:09,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 03:42:09,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:09,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:10,181 INFO L134 CoverageAnalysis]: Checked inductivity of 1360 backedges. 199 proven. 480 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2020-10-14 03:42:10,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1506863169] [2020-10-14 03:42:10,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:42:10,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:42:10,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422457711] [2020-10-14 03:42:10,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:42:10,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:42:10,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:42:10,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:42:10,184 INFO L87 Difference]: Start difference. First operand 24491 states and 27517 transitions. Second operand 7 states. [2020-10-14 03:42:14,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:42:14,677 INFO L93 Difference]: Finished difference Result 52756 states and 59348 transitions. [2020-10-14 03:42:14,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:42:14,678 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 885 [2020-10-14 03:42:14,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:42:14,762 INFO L225 Difference]: With dead ends: 52756 [2020-10-14 03:42:14,762 INFO L226 Difference]: Without dead ends: 28266 [2020-10-14 03:42:14,808 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 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 03:42:14,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28266 states. [2020-10-14 03:42:15,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28266 to 27576. [2020-10-14 03:42:15,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27576 states. [2020-10-14 03:42:15,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27576 states to 27576 states and 30890 transitions. [2020-10-14 03:42:15,253 INFO L78 Accepts]: Start accepts. Automaton has 27576 states and 30890 transitions. Word has length 885 [2020-10-14 03:42:15,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:42:15,253 INFO L479 AbstractCegarLoop]: Abstraction has 27576 states and 30890 transitions. [2020-10-14 03:42:15,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:42:15,253 INFO L276 IsEmpty]: Start isEmpty. Operand 27576 states and 30890 transitions. [2020-10-14 03:42:15,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 925 [2020-10-14 03:42:15,279 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:42:15,280 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:42:15,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 03:42:15,280 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:42:15,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:42:15,280 INFO L82 PathProgramCache]: Analyzing trace with hash 387444535, now seen corresponding path program 1 times [2020-10-14 03:42:15,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:42:15,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [198778413] [2020-10-14 03:42:15,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:42:15,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:15,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:15,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:15,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:16,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:20,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:20,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 942 [2020-10-14 03:42:20,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:42:20,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-10-14 03:42:20,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:20,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:20,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:20,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 330 [2020-10-14 03:42:20,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 03:42:20,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:20,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:42:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:20,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:20,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:20,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:42:20,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:20,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:42:20,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:20,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:20,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:20,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:20,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:20,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:20,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:42:20,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:20,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:20,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:20,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:42:20,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:20,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 03:42:20,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:20,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:20,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:20,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:20,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:20,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:20,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:42:20,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:20,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:20,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:20,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:42:20,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:20,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 03:42:20,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:20,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:20,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:42:20,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:20,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:42:20,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:20,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 03:42:20,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:20,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:20,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:20,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-14 03:42:20,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:20,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-14 03:42:20,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:20,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:20,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:20,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:42:20,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 188 [2020-10-14 03:42:20,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:20,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 513 [2020-10-14 03:42:21,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:21,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:21,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:21,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 03:42:21,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:21,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 03:42:21,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:21,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:21,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:21,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-14 03:42:21,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:21,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:21,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 645 [2020-10-14 03:42:21,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:21,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:21,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:21,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:42:21,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:21,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 03:42:21,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:21,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:21,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:21,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 260 [2020-10-14 03:42:21,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:21,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:21,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1385 backedges. 361 proven. 315 refuted. 0 times theorem prover too weak. 709 trivial. 0 not checked. [2020-10-14 03:42:21,720 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [198778413] [2020-10-14 03:42:21,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:42:21,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:42:21,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893180051] [2020-10-14 03:42:21,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:42:21,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:42:21,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:42:21,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:42:21,722 INFO L87 Difference]: Start difference. First operand 27576 states and 30890 transitions. Second operand 7 states. [2020-10-14 03:42:29,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:42:29,025 INFO L93 Difference]: Finished difference Result 60895 states and 67860 transitions. [2020-10-14 03:42:29,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:42:29,026 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 924 [2020-10-14 03:42:29,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:42:29,097 INFO L225 Difference]: With dead ends: 60895 [2020-10-14 03:42:29,098 INFO L226 Difference]: Without dead ends: 33662 [2020-10-14 03:42:29,133 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 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 03:42:29,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33662 states. [2020-10-14 03:42:29,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33662 to 32974. [2020-10-14 03:42:29,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32974 states. [2020-10-14 03:42:29,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32974 states to 32974 states and 36374 transitions. [2020-10-14 03:42:29,671 INFO L78 Accepts]: Start accepts. Automaton has 32974 states and 36374 transitions. Word has length 924 [2020-10-14 03:42:29,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:42:29,672 INFO L479 AbstractCegarLoop]: Abstraction has 32974 states and 36374 transitions. [2020-10-14 03:42:29,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:42:29,672 INFO L276 IsEmpty]: Start isEmpty. Operand 32974 states and 36374 transitions. [2020-10-14 03:42:29,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1019 [2020-10-14 03:42:29,699 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:42:29,700 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:42:29,701 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 03:42:29,701 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:42:29,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:42:29,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1950254501, now seen corresponding path program 1 times [2020-10-14 03:42:29,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:42:29,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1414166768] [2020-10-14 03:42:29,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:42:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:30,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:30,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:30,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:30,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:34,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:34,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1036 [2020-10-14 03:42:34,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:42:34,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-14 03:42:34,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:34,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:34,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:34,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 622 [2020-10-14 03:42:34,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:42:34,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:35,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:42:35,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:35,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:35,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:35,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:42:35,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:35,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:42:35,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:35,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:35,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:35,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:35,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:35,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:35,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:42:35,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:35,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:35,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:35,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:42:35,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:35,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:42:35,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:35,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:35,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:35,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:35,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:35,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:35,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:42:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:35,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:35,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:35,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:42:35,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:35,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 03:42:35,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:35,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:35,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:35,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:35,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:35,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:35,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:42:35,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:35,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:35,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:35,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:42:35,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:35,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 03:42:35,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:35,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:35,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:42:35,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:35,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 03:42:35,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:35,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:42:35,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:35,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:35,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:35,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:42:35,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:35,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-10-14 03:42:35,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:35,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:35,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:35,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:42:35,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:42:35,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:36,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 889 [2020-10-14 03:42:36,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:36,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:36,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:36,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 03:42:36,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:36,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 03:42:36,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:36,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:36,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:36,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:42:36,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:36,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:37,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1529 backedges. 708 proven. 111 refuted. 0 times theorem prover too weak. 710 trivial. 0 not checked. [2020-10-14 03:42:37,082 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1414166768] [2020-10-14 03:42:37,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:42:37,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:42:37,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786522265] [2020-10-14 03:42:37,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:42:37,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:42:37,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:42:37,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:42:37,084 INFO L87 Difference]: Start difference. First operand 32974 states and 36374 transitions. Second operand 7 states. [2020-10-14 03:42:41,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:42:41,074 INFO L93 Difference]: Finished difference Result 65954 states and 72772 transitions. [2020-10-14 03:42:41,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:42:41,076 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1018 [2020-10-14 03:42:41,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:42:41,142 INFO L225 Difference]: With dead ends: 65954 [2020-10-14 03:42:41,142 INFO L226 Difference]: Without dead ends: 33323 [2020-10-14 03:42:41,178 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:42:41,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33323 states. [2020-10-14 03:42:41,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33323 to 32976. [2020-10-14 03:42:41,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32976 states. [2020-10-14 03:42:41,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32976 states to 32976 states and 36371 transitions. [2020-10-14 03:42:41,721 INFO L78 Accepts]: Start accepts. Automaton has 32976 states and 36371 transitions. Word has length 1018 [2020-10-14 03:42:41,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:42:41,722 INFO L479 AbstractCegarLoop]: Abstraction has 32976 states and 36371 transitions. [2020-10-14 03:42:41,722 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:42:41,722 INFO L276 IsEmpty]: Start isEmpty. Operand 32976 states and 36371 transitions. [2020-10-14 03:42:41,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1069 [2020-10-14 03:42:41,746 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:42:41,747 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:42:41,747 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 03:42:41,747 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:42:41,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:42:41,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1104154769, now seen corresponding path program 1 times [2020-10-14 03:42:41,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:42:41,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [857946484] [2020-10-14 03:42:41,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:42:41,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:41,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:42,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:42,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1086 [2020-10-14 03:42:42,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:42,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 932 [2020-10-14 03:42:42,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:42,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:42,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:42,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1061 [2020-10-14 03:42:42,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 03:42:42,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:42,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:42:42,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:42,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:42,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:42,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:42:42,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:42,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:42:42,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:42,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:42,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:42,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:42,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:42,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:42,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:42:42,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:42,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:43,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:43,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:42:43,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:43,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 03:42:43,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:43,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:43,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:43,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:43,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:43,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:43,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:42:43,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:43,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:43,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:43,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 03:42:43,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:43,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 03:42:43,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:43,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:43,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:43,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:43,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:43,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:43,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 03:42:43,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:43,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:43,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:43,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-14 03:42:43,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:43,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 03:42:43,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:43,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:43,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:43,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:43,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:43,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:43,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 657 [2020-10-14 03:42:43,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:43,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:43,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:43,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 03:42:43,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:43,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 03:42:43,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:43,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:43,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:43,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:43,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:43,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:43,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 789 [2020-10-14 03:42:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:43,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:43,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:43,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:42:43,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:43,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-14 03:42:43,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:43,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:43,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:42:43,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:43,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 257 [2020-10-14 03:42:43,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:44,182 INFO L134 CoverageAnalysis]: Checked inductivity of 1864 backedges. 97 proven. 5 refuted. 0 times theorem prover too weak. 1762 trivial. 0 not checked. [2020-10-14 03:42:44,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [857946484] [2020-10-14 03:42:44,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:42:44,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:42:44,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86992698] [2020-10-14 03:42:44,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:42:44,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:42:44,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:42:44,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:42:44,184 INFO L87 Difference]: Start difference. First operand 32976 states and 36371 transitions. Second operand 5 states. [2020-10-14 03:42:47,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:42:47,400 INFO L93 Difference]: Finished difference Result 65609 states and 72393 transitions. [2020-10-14 03:42:47,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:42:47,403 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1068 [2020-10-14 03:42:47,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:42:47,475 INFO L225 Difference]: With dead ends: 65609 [2020-10-14 03:42:47,476 INFO L226 Difference]: Without dead ends: 32976 [2020-10-14 03:42:47,527 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 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 03:42:47,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32976 states. [2020-10-14 03:42:47,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32976 to 32976. [2020-10-14 03:42:47,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32976 states. [2020-10-14 03:42:47,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32976 states to 32976 states and 35643 transitions. [2020-10-14 03:42:47,987 INFO L78 Accepts]: Start accepts. Automaton has 32976 states and 35643 transitions. Word has length 1068 [2020-10-14 03:42:47,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:42:47,988 INFO L479 AbstractCegarLoop]: Abstraction has 32976 states and 35643 transitions. [2020-10-14 03:42:47,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:42:47,988 INFO L276 IsEmpty]: Start isEmpty. Operand 32976 states and 35643 transitions. [2020-10-14 03:42:48,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1219 [2020-10-14 03:42:48,021 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:42:48,023 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:42:48,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 03:42:48,023 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:42:48,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:42:48,024 INFO L82 PathProgramCache]: Analyzing trace with hash 480303003, now seen corresponding path program 1 times [2020-10-14 03:42:48,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:42:48,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [168806964] [2020-10-14 03:42:48,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:42:48,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:48,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:48,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:49,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:54,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:54,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1240 [2020-10-14 03:42:54,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:42:54,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6432 [2020-10-14 03:42:54,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:54,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:54,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:54,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1141 [2020-10-14 03:42:54,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 03:42:54,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:54,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:42:54,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:54,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:54,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:54,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:42:54,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:54,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:42:54,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:54,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:54,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:54,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:54,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:54,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:54,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:42:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:54,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:54,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:54,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:42:54,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:54,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:42:54,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:54,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:54,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:54,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:54,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:54,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:54,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:42:54,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:54,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:54,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:54,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:42:54,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:54,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 03:42:54,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:54,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:54,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:54,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:54,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:54,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:55,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:42:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:55,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:55,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:55,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:42:55,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:55,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 03:42:55,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:55,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:55,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:55,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:55,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:55,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:55,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:42:55,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:55,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:55,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:55,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:42:55,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:55,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 03:42:55,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:55,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:55,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:55,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:55,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:55,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:55,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2020-10-14 03:42:55,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:55,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:55,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:55,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:42:55,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:55,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 03:42:55,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:55,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:55,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:55,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:55,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:55,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:55,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 914 [2020-10-14 03:42:55,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:55,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:55,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:55,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:42:55,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:55,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 03:42:55,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:55,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:55,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:42:55,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:55,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 210 [2020-10-14 03:42:55,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:55,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1129 [2020-10-14 03:42:55,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:55,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:55,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:55,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:42:55,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:55,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:42:55,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:55,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:55,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:55,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:42:55,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 03:42:55,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0