/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=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label04.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 08:46:09,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 08:46:10,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 08:46:10,057 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 08:46:10,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 08:46:10,068 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 08:46:10,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 08:46:10,075 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 08:46:10,078 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 08:46:10,081 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 08:46:10,083 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 08:46:10,084 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 08:46:10,084 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 08:46:10,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 08:46:10,092 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 08:46:10,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 08:46:10,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 08:46:10,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 08:46:10,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 08:46:10,110 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 08:46:10,113 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 08:46:10,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 08:46:10,116 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 08:46:10,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 08:46:10,131 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 08:46:10,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 08:46:10,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 08:46:10,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 08:46:10,139 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 08:46:10,140 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 08:46:10,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 08:46:10,146 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 08:46:10,147 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 08:46:10,148 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 08:46:10,149 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 08:46:10,149 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 08:46:10,152 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 08:46:10,153 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 08:46:10,153 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 08:46:10,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 08:46:10,155 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 08:46:10,157 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 [2020-10-13 08:46:10,201 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 08:46:10,202 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 08:46:10,204 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 08:46:10,205 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 08:46:10,205 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 08:46:10,205 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 08:46:10,206 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 08:46:10,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 08:46:10,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 08:46:10,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 08:46:10,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 08:46:10,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 08:46:10,208 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 08:46:10,208 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 08:46:10,209 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 08:46:10,209 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 08:46:10,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 08:46:10,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 08:46:10,209 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 08:46:10,210 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 08:46:10,210 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 08:46:10,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 08:46:10,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 08:46:10,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 08:46:10,211 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 08:46:10,211 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 08:46:10,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 08:46:10,212 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 08:46:10,212 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 08:46:10,212 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 08:46:10,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 08:46:10,641 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 08:46:10,646 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 08:46:10,649 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 08:46:10,650 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 08:46:10,650 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label04.c [2020-10-13 08:46:10,742 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3ecad2c5d/edcaecb5c2eb44bcbfbbc99fabbd225d/FLAG45a79ed24 [2020-10-13 08:46:11,425 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 08:46:11,426 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label04.c [2020-10-13 08:46:11,455 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3ecad2c5d/edcaecb5c2eb44bcbfbbc99fabbd225d/FLAG45a79ed24 [2020-10-13 08:46:11,610 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3ecad2c5d/edcaecb5c2eb44bcbfbbc99fabbd225d [2020-10-13 08:46:11,620 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 08:46:11,622 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 08:46:11,623 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 08:46:11,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 08:46:11,628 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 08:46:11,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:46:11" (1/1) ... [2020-10-13 08:46:11,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cb7919e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:46:11, skipping insertion in model container [2020-10-13 08:46:11,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:46:11" (1/1) ... [2020-10-13 08:46:11,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 08:46:11,733 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 08:46:12,383 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:46:12,389 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 08:46:12,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:46:12,629 INFO L208 MainTranslator]: Completed translation [2020-10-13 08:46:12,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:46:12 WrapperNode [2020-10-13 08:46:12,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 08:46:12,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 08:46:12,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 08:46:12,633 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 08:46:12,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:46:12" (1/1) ... [2020-10-13 08:46:12,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:46:12" (1/1) ... [2020-10-13 08:46:12,698 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:46:12" (1/1) ... [2020-10-13 08:46:12,699 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:46:12" (1/1) ... [2020-10-13 08:46:12,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:46:12" (1/1) ... [2020-10-13 08:46:12,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:46:12" (1/1) ... [2020-10-13 08:46:12,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:46:12" (1/1) ... [2020-10-13 08:46:12,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 08:46:12,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 08:46:12,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 08:46:12,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 08:46:12,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:46:12" (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 [2020-10-13 08:46:12,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 08:46:12,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 08:46:12,918 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 08:46:12,918 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 08:46:12,919 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 08:46:12,919 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 08:46:12,919 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 08:46:12,919 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 08:46:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 08:46:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 08:46:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 08:46:14,667 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 08:46:14,667 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 08:46:14,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:46:14 BoogieIcfgContainer [2020-10-13 08:46:14,676 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 08:46:14,678 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 08:46:14,679 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 08:46:14,684 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 08:46:14,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:46:11" (1/3) ... [2020-10-13 08:46:14,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7494ddcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:46:14, skipping insertion in model container [2020-10-13 08:46:14,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:46:12" (2/3) ... [2020-10-13 08:46:14,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7494ddcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:46:14, skipping insertion in model container [2020-10-13 08:46:14,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:46:14" (3/3) ... [2020-10-13 08:46:14,690 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label04.c [2020-10-13 08:46:14,705 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 08:46:14,717 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 08:46:14,738 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 08:46:14,776 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 08:46:14,777 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 08:46:14,777 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 08:46:14,777 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 08:46:14,777 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 08:46:14,777 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 08:46:14,778 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 08:46:14,778 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 08:46:14,809 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-13 08:46:14,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-13 08:46:14,822 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:46:14,823 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:46:14,824 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:46:14,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:46:14,834 INFO L82 PathProgramCache]: Analyzing trace with hash 111539867, now seen corresponding path program 1 times [2020-10-13 08:46:14,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:46:14,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [681391590] [2020-10-13 08:46:14,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:46:15,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:15,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:15,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:15,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-13 08:46:15,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:46:15,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 604 [2020-10-13 08:46:15,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:15,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:46:15,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:46:15,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-13 08:46:15,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 08:46:15,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:46:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:15,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:15,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:15,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:46:15,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:46:15,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:46:15,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:15,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:46:15,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:46:15,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:46:15,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:46:15,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:46:15,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [681391590] [2020-10-13 08:46:15,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 08:46:15,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 08:46:15,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157956954] [2020-10-13 08:46:15,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:46:15,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:46:16,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:46:16,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:46:16,005 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 5 states. [2020-10-13 08:46:18,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:46:18,129 INFO L93 Difference]: Finished difference Result 698 states and 1241 transitions. [2020-10-13 08:46:18,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:46:18,133 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2020-10-13 08:46:18,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:46:18,153 INFO L225 Difference]: With dead ends: 698 [2020-10-13 08:46:18,154 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:46:18,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:46:18,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:46:18,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:46:18,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:46:18,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 604 transitions. [2020-10-13 08:46:18,267 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 604 transitions. Word has length 58 [2020-10-13 08:46:18,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:46:18,268 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 604 transitions. [2020-10-13 08:46:18,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:46:18,269 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 604 transitions. [2020-10-13 08:46:18,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-13 08:46:18,275 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:46:18,276 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:46:18,276 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 08:46:18,277 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:46:18,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:46:18,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1919081915, now seen corresponding path program 1 times [2020-10-13 08:46:18,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:46:18,278 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1750036734] [2020-10-13 08:46:18,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:46:18,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:18,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:18,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:18,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:19,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:19,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-13 08:46:19,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:46:19,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1108 [2020-10-13 08:46:19,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:19,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:46:19,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-13 08:46:19,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 08:46:19,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 08:46:19,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:46:19,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:19,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:19,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:19,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:46:19,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:46:19,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:46:19,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:19,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:46:19,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:46:19,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:46:19,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:46:19,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:46:19,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:19,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:19,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:19,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 08:46:19,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:46:19,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-13 08:46:19,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:19,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:46:19,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:46:19,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 08:46:19,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:46:19,706 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 50 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:46:19,707 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1750036734] [2020-10-13 08:46:19,707 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:46:19,707 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:46:19,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700861375] [2020-10-13 08:46:19,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:46:19,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:46:19,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:46:19,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:46:19,712 INFO L87 Difference]: Start difference. First operand 374 states and 604 transitions. Second operand 5 states. [2020-10-13 08:46:21,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:46:21,049 INFO L93 Difference]: Finished difference Result 781 states and 1250 transitions. [2020-10-13 08:46:21,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:46:21,050 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 127 [2020-10-13 08:46:21,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:46:21,055 INFO L225 Difference]: With dead ends: 781 [2020-10-13 08:46:21,055 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:46:21,058 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:46:21,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:46:21,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:46:21,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:46:21,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 550 transitions. [2020-10-13 08:46:21,088 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 550 transitions. Word has length 127 [2020-10-13 08:46:21,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:46:21,089 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 550 transitions. [2020-10-13 08:46:21,089 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:46:21,090 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 550 transitions. [2020-10-13 08:46:21,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-13 08:46:21,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:46:21,096 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:46:21,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 08:46:21,096 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:46:21,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:46:21,097 INFO L82 PathProgramCache]: Analyzing trace with hash -36826466, now seen corresponding path program 1 times [2020-10-13 08:46:21,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:46:21,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1055229141] [2020-10-13 08:46:21,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:46:21,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:21,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:21,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:21,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:22,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:22,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:22,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-13 08:46:22,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:46:22,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1158 [2020-10-13 08:46:22,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:22,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:46:22,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-13 08:46:22,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 08:46:22,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:46:22,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:46:22,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:22,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:22,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:22,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:46:22,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:46:22,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:46:22,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:22,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:46:22,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:46:22,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:46:22,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:46:22,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:46:22,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:22,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:22,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:22,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 08:46:22,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:46:22,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-13 08:46:22,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:22,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:46:22,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:46:22,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 08:46:22,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:46:22,565 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 50 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:46:22,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1055229141] [2020-10-13 08:46:22,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:46:22,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:46:22,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936274897] [2020-10-13 08:46:22,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:46:22,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:46:22,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:46:22,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:46:22,569 INFO L87 Difference]: Start difference. First operand 374 states and 550 transitions. Second operand 5 states. [2020-10-13 08:46:23,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:46:23,780 INFO L93 Difference]: Finished difference Result 781 states and 1142 transitions. [2020-10-13 08:46:23,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:46:23,781 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 128 [2020-10-13 08:46:23,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:46:23,785 INFO L225 Difference]: With dead ends: 781 [2020-10-13 08:46:23,785 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:46:23,787 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:46:23,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:46:23,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:46:23,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:46:23,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 490 transitions. [2020-10-13 08:46:23,813 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 490 transitions. Word has length 128 [2020-10-13 08:46:23,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:46:23,814 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 490 transitions. [2020-10-13 08:46:23,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:46:23,814 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 490 transitions. [2020-10-13 08:46:23,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-13 08:46:23,817 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:46:23,817 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:46:23,818 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 08:46:23,818 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:46:23,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:46:23,819 INFO L82 PathProgramCache]: Analyzing trace with hash -110921859, now seen corresponding path program 1 times [2020-10-13 08:46:23,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:46:23,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [998044370] [2020-10-13 08:46:23,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:46:23,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:23,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:24,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:24,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 08:46:24,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:46:24,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 390 [2020-10-13 08:46:24,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:24,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:46:24,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:46:24,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 08:46:24,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:46:24,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:46:24,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:24,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:24,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:24,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:46:24,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:46:24,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 08:46:24,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:24,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:46:24,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:46:24,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:46:24,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-13 08:46:24,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:46:24,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:24,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:24,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:24,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:46:24,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:46:24,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-13 08:46:24,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:24,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:46:24,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:46:24,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 08:46:24,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:46:24,623 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:46:24,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [998044370] [2020-10-13 08:46:24,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 08:46:24,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 08:46:24,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724417425] [2020-10-13 08:46:24,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:46:24,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:46:24,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:46:24,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:46:24,629 INFO L87 Difference]: Start difference. First operand 374 states and 490 transitions. Second operand 7 states. [2020-10-13 08:46:26,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:46:26,455 INFO L93 Difference]: Finished difference Result 1136 states and 1521 transitions. [2020-10-13 08:46:26,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 08:46:26,457 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 131 [2020-10-13 08:46:26,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:46:26,464 INFO L225 Difference]: With dead ends: 1136 [2020-10-13 08:46:26,465 INFO L226 Difference]: Without dead ends: 768 [2020-10-13 08:46:26,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:46:26,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2020-10-13 08:46:26,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 566. [2020-10-13 08:46:26,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2020-10-13 08:46:26,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 697 transitions. [2020-10-13 08:46:26,500 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 697 transitions. Word has length 131 [2020-10-13 08:46:26,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:46:26,501 INFO L479 AbstractCegarLoop]: Abstraction has 566 states and 697 transitions. [2020-10-13 08:46:26,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:46:26,501 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 697 transitions. [2020-10-13 08:46:26,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-13 08:46:26,505 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:46:26,505 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:46:26,506 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 08:46:26,506 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:46:26,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:46:26,506 INFO L82 PathProgramCache]: Analyzing trace with hash 313899057, now seen corresponding path program 1 times [2020-10-13 08:46:26,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:46:26,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [144025220] [2020-10-13 08:46:26,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:46:26,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:26,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:26,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:26,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:28,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:28,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-13 08:46:28,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:46:28,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1774 [2020-10-13 08:46:28,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:28,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:46:28,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-13 08:46:28,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 08:46:28,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:46:28,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:46:28,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:28,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:28,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:28,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:46:28,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:46:28,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 08:46:28,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:28,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:46:28,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:46:28,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:46:28,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:46:28,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:46:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:28,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:28,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:28,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-13 08:46:28,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:46:28,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-13 08:46:28,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:28,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:46:28,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:46:28,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-13 08:46:28,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:46:28,625 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 50 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:46:28,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [144025220] [2020-10-13 08:46:28,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:46:28,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:46:28,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943313401] [2020-10-13 08:46:28,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:46:28,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:46:28,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:46:28,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:46:28,628 INFO L87 Difference]: Start difference. First operand 566 states and 697 transitions. Second operand 5 states. [2020-10-13 08:46:29,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:46:29,555 INFO L93 Difference]: Finished difference Result 1147 states and 1423 transitions. [2020-10-13 08:46:29,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:46:29,556 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 153 [2020-10-13 08:46:29,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:46:29,559 INFO L225 Difference]: With dead ends: 1147 [2020-10-13 08:46:29,560 INFO L226 Difference]: Without dead ends: 574 [2020-10-13 08:46:29,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:46:29,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2020-10-13 08:46:29,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 564. [2020-10-13 08:46:29,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 564 states. [2020-10-13 08:46:29,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 690 transitions. [2020-10-13 08:46:29,581 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 690 transitions. Word has length 153 [2020-10-13 08:46:29,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:46:29,582 INFO L479 AbstractCegarLoop]: Abstraction has 564 states and 690 transitions. [2020-10-13 08:46:29,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:46:29,582 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 690 transitions. [2020-10-13 08:46:29,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-10-13 08:46:29,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:46:29,587 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:46:29,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 08:46:29,587 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:46:29,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:46:29,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1391402673, now seen corresponding path program 1 times [2020-10-13 08:46:29,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:46:29,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1113990511] [2020-10-13 08:46:29,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:46:29,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:29,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:29,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:29,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:31,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:31,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-13 08:46:31,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:46:31,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1808 [2020-10-13 08:46:31,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:31,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:46:31,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-13 08:46:31,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 08:46:31,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:46:31,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:46:31,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:31,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:31,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:31,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:46:31,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:46:31,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:46:31,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:31,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:46:31,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:46:31,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:46:31,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:46:31,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:46:31,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:31,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:31,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:31,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 08:46:31,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:46:31,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-13 08:46:31,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:31,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:46:31,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:46:31,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 08:46:31,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:46:31,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-13 08:46:31,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:31,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:31,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:31,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:31,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:46:31,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:46:31,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-13 08:46:31,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:31,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:46:31,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:46:31,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 08:46:31,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:46:31,978 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 172 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 08:46:31,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1113990511] [2020-10-13 08:46:31,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:46:31,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 08:46:31,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470520316] [2020-10-13 08:46:31,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 08:46:31,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:46:31,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 08:46:31,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:46:31,981 INFO L87 Difference]: Start difference. First operand 564 states and 690 transitions. Second operand 6 states. [2020-10-13 08:46:33,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:46:33,092 INFO L93 Difference]: Finished difference Result 1151 states and 1422 transitions. [2020-10-13 08:46:33,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 08:46:33,092 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 214 [2020-10-13 08:46:33,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:46:33,096 INFO L225 Difference]: With dead ends: 1151 [2020-10-13 08:46:33,096 INFO L226 Difference]: Without dead ends: 581 [2020-10-13 08:46:33,098 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-13 08:46:33,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2020-10-13 08:46:33,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 564. [2020-10-13 08:46:33,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 564 states. [2020-10-13 08:46:33,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 687 transitions. [2020-10-13 08:46:33,119 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 687 transitions. Word has length 214 [2020-10-13 08:46:33,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:46:33,119 INFO L479 AbstractCegarLoop]: Abstraction has 564 states and 687 transitions. [2020-10-13 08:46:33,119 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 08:46:33,120 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 687 transitions. [2020-10-13 08:46:33,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-10-13 08:46:33,123 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:46:33,124 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:46:33,124 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 08:46:33,124 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:46:33,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:46:33,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1493050141, now seen corresponding path program 1 times [2020-10-13 08:46:33,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:46:33,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [441356522] [2020-10-13 08:46:33,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:46:33,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:33,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:33,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:34,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:34,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-10-13 08:46:34,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:46:34,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1551 [2020-10-13 08:46:34,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:34,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:46:34,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 119 [2020-10-13 08:46:34,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 08:46:34,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:46:34,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:46:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:34,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:34,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:34,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:46:34,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:46:34,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:46:34,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:34,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:46:34,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:46:34,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:46:34,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:46:34,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:46:34,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:34,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:34,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:34,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:46:34,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:46:34,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-13 08:46:34,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:34,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:46:34,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:46:34,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-13 08:46:34,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:46:34,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-13 08:46:34,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:34,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:35,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:35,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:46:35,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:46:35,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-13 08:46:35,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:35,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:46:35,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:46:35,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 08:46:35,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:46:35,280 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 172 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 08:46:35,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [441356522] [2020-10-13 08:46:35,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:46:35,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:46:35,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454326409] [2020-10-13 08:46:35,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:46:35,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:46:35,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:46:35,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:46:35,285 INFO L87 Difference]: Start difference. First operand 564 states and 687 transitions. Second operand 7 states. [2020-10-13 08:46:37,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:46:37,241 INFO L93 Difference]: Finished difference Result 1496 states and 1819 transitions. [2020-10-13 08:46:37,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 08:46:37,244 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 240 [2020-10-13 08:46:37,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:46:37,252 INFO L225 Difference]: With dead ends: 1496 [2020-10-13 08:46:37,253 INFO L226 Difference]: Without dead ends: 938 [2020-10-13 08:46:37,256 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-13 08:46:37,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2020-10-13 08:46:37,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 936. [2020-10-13 08:46:37,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 936 states. [2020-10-13 08:46:37,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1072 transitions. [2020-10-13 08:46:37,301 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1072 transitions. Word has length 240 [2020-10-13 08:46:37,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:46:37,302 INFO L479 AbstractCegarLoop]: Abstraction has 936 states and 1072 transitions. [2020-10-13 08:46:37,302 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:46:37,302 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1072 transitions. [2020-10-13 08:46:37,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2020-10-13 08:46:37,309 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:46:37,309 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:46:37,310 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 08:46:37,310 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:46:37,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:46:37,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1966060923, now seen corresponding path program 1 times [2020-10-13 08:46:37,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:46:37,311 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1462026608] [2020-10-13 08:46:37,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:46:37,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:37,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:37,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:37,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:41,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:41,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 367 [2020-10-13 08:46:41,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:46:41,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4351 [2020-10-13 08:46:41,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:41,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:46:41,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 234 [2020-10-13 08:46:41,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 08:46:41,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:46:41,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:46:41,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:41,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:41,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:41,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:46:41,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:46:41,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 08:46:41,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:41,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:46:41,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:46:41,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:46:41,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:46:41,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:46:41,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:41,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:41,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:41,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:46:41,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:46:41,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 08:46:41,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:41,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:46:41,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:46:41,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:46:41,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:46:41,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:46:41,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:41,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:42,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:42,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:46:42,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:46:42,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-13 08:46:42,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:42,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:46:42,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:46:42,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-13 08:46:42,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:46:42,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-13 08:46:42,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:42,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:42,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:42,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:46:42,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:46:42,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-13 08:46:42,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:42,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:46:42,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:46:42,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 08:46:42,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:46:42,418 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 298 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2020-10-13 08:46:42,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1462026608] [2020-10-13 08:46:42,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:46:42,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:46:42,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385395419] [2020-10-13 08:46:42,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:46:42,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:46:42,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:46:42,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:46:42,421 INFO L87 Difference]: Start difference. First operand 936 states and 1072 transitions. Second operand 7 states. [2020-10-13 08:46:45,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:46:45,044 INFO L93 Difference]: Finished difference Result 2074 states and 2430 transitions. [2020-10-13 08:46:45,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 08:46:45,050 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 353 [2020-10-13 08:46:45,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:46:45,058 INFO L225 Difference]: With dead ends: 2074 [2020-10-13 08:46:45,058 INFO L226 Difference]: Without dead ends: 1326 [2020-10-13 08:46:45,061 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 [2020-10-13 08:46:45,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2020-10-13 08:46:45,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1314. [2020-10-13 08:46:45,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1314 states. [2020-10-13 08:46:45,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1492 transitions. [2020-10-13 08:46:45,110 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1492 transitions. Word has length 353 [2020-10-13 08:46:45,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:46:45,112 INFO L479 AbstractCegarLoop]: Abstraction has 1314 states and 1492 transitions. [2020-10-13 08:46:45,113 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:46:45,113 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1492 transitions. [2020-10-13 08:46:45,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2020-10-13 08:46:45,121 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:46:45,121 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:46:45,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 08:46:45,122 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:46:45,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:46:45,122 INFO L82 PathProgramCache]: Analyzing trace with hash 468915224, now seen corresponding path program 1 times [2020-10-13 08:46:45,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:46:45,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [96775615] [2020-10-13 08:46:45,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:46:45,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:45,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:45,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:45,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:46,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:50,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:50,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:50,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 368 [2020-10-13 08:46:50,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:46:50,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-13 08:46:50,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:50,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:46:50,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 310 [2020-10-13 08:46:50,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 08:46:50,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:46:50,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:46:50,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:50,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:50,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:50,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:46:50,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:46:50,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:46:50,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:50,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:46:50,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:46:50,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:46:50,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:46:50,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:46:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:50,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:50,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:50,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:46:50,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:46:50,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 08:46:50,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:50,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:46:50,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:46:50,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:46:50,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:46:50,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:46:50,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:50,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:50,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:50,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:46:50,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:46:50,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 08:46:50,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:50,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:46:50,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:46:50,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:46:50,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:46:50,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-13 08:46:50,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:50,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:50,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:50,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-13 08:46:50,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:46:50,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-13 08:46:50,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:50,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:46:50,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:46:50,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 08:46:50,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:46:50,774 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 156 proven. 3 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2020-10-13 08:46:50,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [96775615] [2020-10-13 08:46:50,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:46:50,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:46:50,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459514881] [2020-10-13 08:46:50,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:46:50,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:46:50,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:46:50,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:46:50,783 INFO L87 Difference]: Start difference. First operand 1314 states and 1492 transitions. Second operand 5 states. [2020-10-13 08:46:51,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:46:51,971 INFO L93 Difference]: Finished difference Result 2276 states and 2638 transitions. [2020-10-13 08:46:51,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:46:51,971 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 354 [2020-10-13 08:46:51,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:46:51,983 INFO L225 Difference]: With dead ends: 2276 [2020-10-13 08:46:51,984 INFO L226 Difference]: Without dead ends: 1318 [2020-10-13 08:46:51,987 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:46:51,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states. [2020-10-13 08:46:52,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 1314. [2020-10-13 08:46:52,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1314 states. [2020-10-13 08:46:52,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1489 transitions. [2020-10-13 08:46:52,035 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1489 transitions. Word has length 354 [2020-10-13 08:46:52,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:46:52,036 INFO L479 AbstractCegarLoop]: Abstraction has 1314 states and 1489 transitions. [2020-10-13 08:46:52,036 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:46:52,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1489 transitions. [2020-10-13 08:46:52,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2020-10-13 08:46:52,045 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:46:52,046 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:46:52,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 08:46:52,046 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:46:52,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:46:52,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1768452865, now seen corresponding path program 1 times [2020-10-13 08:46:52,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:46:52,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2068863120] [2020-10-13 08:46:52,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:46:52,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:52,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:52,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:52,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:55,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:55,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 385 [2020-10-13 08:46:55,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:46:55,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3039 [2020-10-13 08:46:55,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:55,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:46:55,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-13 08:46:55,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 08:46:55,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:46:55,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:46:55,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:55,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:55,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:55,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:46:55,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:46:55,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:46:55,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:55,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:46:55,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:46:55,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:46:55,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:46:55,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:46:55,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:55,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:55,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:55,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:46:55,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:46:55,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 08:46:55,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:55,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:46:55,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:46:55,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:46:55,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 08:46:55,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:46:55,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:55,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:55,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:55,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-13 08:46:55,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:46:55,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-13 08:46:55,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:55,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:46:55,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:46:55,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-13 08:46:55,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:46:55,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2020-10-13 08:46:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:55,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:55,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:46:55,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:46:55,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:46:55,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-13 08:46:55,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:46:55,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:46:55,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:46:55,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 08:46:55,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:46:55,837 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 298 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2020-10-13 08:46:55,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2068863120] [2020-10-13 08:46:55,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:46:55,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:46:55,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982606530] [2020-10-13 08:46:55,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:46:55,840 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:46:55,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:46:55,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:46:55,840 INFO L87 Difference]: Start difference. First operand 1314 states and 1489 transitions. Second operand 7 states. [2020-10-13 08:46:57,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:46:57,915 INFO L93 Difference]: Finished difference Result 2660 states and 3228 transitions. [2020-10-13 08:46:57,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 08:46:57,920 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 371 [2020-10-13 08:46:57,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:46:57,930 INFO L225 Difference]: With dead ends: 2660 [2020-10-13 08:46:57,931 INFO L226 Difference]: Without dead ends: 1720 [2020-10-13 08:46:57,934 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:46:57,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2020-10-13 08:46:57,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1312. [2020-10-13 08:46:57,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1312 states. [2020-10-13 08:46:57,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 1483 transitions. [2020-10-13 08:46:57,987 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 1483 transitions. Word has length 371 [2020-10-13 08:46:57,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:46:57,987 INFO L479 AbstractCegarLoop]: Abstraction has 1312 states and 1483 transitions. [2020-10-13 08:46:57,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:46:57,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 1483 transitions. [2020-10-13 08:46:57,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2020-10-13 08:46:57,993 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:46:57,993 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:46:57,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 08:46:57,994 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:46:57,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:46:57,994 INFO L82 PathProgramCache]: Analyzing trace with hash -99190356, now seen corresponding path program 1 times [2020-10-13 08:46:57,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:46:57,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [339967838] [2020-10-13 08:46:57,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:46:58,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:46:58,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:58,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:46:58,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:00,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:01,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:03,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:03,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 438 [2020-10-13 08:47:03,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:47:03,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-13 08:47:03,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:03,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:47:03,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 380 [2020-10-13 08:47:03,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 08:47:03,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:03,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:47:03,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:03,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:03,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:03,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:47:03,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:03,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:47:03,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:03,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:03,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:03,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:03,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:03,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:47:03,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:03,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:03,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:03,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:47:03,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:03,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 08:47:03,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:03,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:03,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:03,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:03,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:03,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:47:03,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:03,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:03,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:03,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:47:03,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:03,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:47:03,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:03,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:03,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:03,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:03,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:03,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-13 08:47:03,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:03,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:03,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:03,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 08:47:03,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:03,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-13 08:47:03,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:03,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:47:03,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:03,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-13 08:47:03,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:03,618 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 156 proven. 3 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2020-10-13 08:47:03,619 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [339967838] [2020-10-13 08:47:03,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:47:03,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:47:03,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599047211] [2020-10-13 08:47:03,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:47:03,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:47:03,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:47:03,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:47:03,621 INFO L87 Difference]: Start difference. First operand 1312 states and 1483 transitions. Second operand 5 states. [2020-10-13 08:47:04,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:47:04,452 INFO L93 Difference]: Finished difference Result 2262 states and 2609 transitions. [2020-10-13 08:47:04,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:47:04,453 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 424 [2020-10-13 08:47:04,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:47:04,460 INFO L225 Difference]: With dead ends: 2262 [2020-10-13 08:47:04,460 INFO L226 Difference]: Without dead ends: 1316 [2020-10-13 08:47:04,463 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:47:04,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1316 states. [2020-10-13 08:47:04,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 1310. [2020-10-13 08:47:04,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1310 states. [2020-10-13 08:47:04,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 1476 transitions. [2020-10-13 08:47:04,495 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 1476 transitions. Word has length 424 [2020-10-13 08:47:04,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:47:04,496 INFO L479 AbstractCegarLoop]: Abstraction has 1310 states and 1476 transitions. [2020-10-13 08:47:04,496 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:47:04,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 1476 transitions. [2020-10-13 08:47:04,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2020-10-13 08:47:04,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:47:04,502 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-13 08:47:04,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 08:47:04,502 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:47:04,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:47:04,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1444077432, now seen corresponding path program 1 times [2020-10-13 08:47:04,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:47:04,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1679205708] [2020-10-13 08:47:04,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:47:04,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:04,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:04,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:04,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:05,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:05,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:09,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:09,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 455 [2020-10-13 08:47:09,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:47:09,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 08:47:09,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:09,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:47:09,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 322 [2020-10-13 08:47:09,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-13 08:47:09,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:09,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:47:09,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:09,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:09,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:09,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:47:09,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:09,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:47:09,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:09,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:09,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:09,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:09,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:09,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:47:09,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:09,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:09,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:09,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:47:09,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:09,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:47:09,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:09,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:09,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:09,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:09,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:09,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:47:09,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:09,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:09,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:09,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:47:09,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:09,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 08:47:09,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:09,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:09,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:09,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:09,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:09,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-13 08:47:09,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:09,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:09,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:09,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:47:09,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:09,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 08:47:09,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:09,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:47:09,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:09,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 08:47:09,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:09,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-10-13 08:47:09,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:09,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:09,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:09,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:09,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:47:09,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:47:09,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-13 08:47:09,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:09,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:47:09,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:47:09,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 08:47:09,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:10,097 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 424 proven. 2 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-10-13 08:47:10,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1679205708] [2020-10-13 08:47:10,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:47:10,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:47:10,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069362781] [2020-10-13 08:47:10,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:47:10,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:47:10,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:47:10,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:47:10,100 INFO L87 Difference]: Start difference. First operand 1310 states and 1476 transitions. Second operand 7 states. [2020-10-13 08:47:12,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:47:12,548 INFO L93 Difference]: Finished difference Result 3170 states and 3729 transitions. [2020-10-13 08:47:12,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 08:47:12,552 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 439 [2020-10-13 08:47:12,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:47:12,561 INFO L225 Difference]: With dead ends: 3170 [2020-10-13 08:47:12,562 INFO L226 Difference]: Without dead ends: 2050 [2020-10-13 08:47:12,565 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:47:12,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2050 states. [2020-10-13 08:47:12,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2050 to 1862. [2020-10-13 08:47:12,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1862 states. [2020-10-13 08:47:12,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 2113 transitions. [2020-10-13 08:47:12,610 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 2113 transitions. Word has length 439 [2020-10-13 08:47:12,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:47:12,611 INFO L479 AbstractCegarLoop]: Abstraction has 1862 states and 2113 transitions. [2020-10-13 08:47:12,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:47:12,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 2113 transitions. [2020-10-13 08:47:12,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2020-10-13 08:47:12,616 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:47:12,617 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:47:12,617 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 08:47:12,617 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:47:12,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:47:12,618 INFO L82 PathProgramCache]: Analyzing trace with hash 604154852, now seen corresponding path program 1 times [2020-10-13 08:47:12,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:47:12,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [507542658] [2020-10-13 08:47:12,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:47:12,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:12,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:12,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:12,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:13,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:13,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:17,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:17,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 461 [2020-10-13 08:47:17,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:47:17,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-13 08:47:17,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:17,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:47:17,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 328 [2020-10-13 08:47:17,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 08:47:17,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:17,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:47:17,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:17,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:17,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:17,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:47:17,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:17,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:47:17,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:17,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:17,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:17,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:17,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:17,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:47:17,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:17,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:17,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:17,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:47:17,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:17,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:47:17,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:17,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:17,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:17,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:17,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:17,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:47:17,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:17,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:17,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:17,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:47:17,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:17,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 08:47:17,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:17,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:17,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:17,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:17,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:17,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-13 08:47:17,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:17,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:17,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:17,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-13 08:47:17,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:17,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 08:47:17,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:17,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:47:17,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:17,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 08:47:17,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:17,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2020-10-13 08:47:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:17,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:17,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:18,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:18,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:47:18,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:47:18,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-13 08:47:18,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:18,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:47:18,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:47:18,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 08:47:18,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:18,326 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 424 proven. 2 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2020-10-13 08:47:18,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [507542658] [2020-10-13 08:47:18,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:47:18,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 08:47:18,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593470882] [2020-10-13 08:47:18,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 08:47:18,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:47:18,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 08:47:18,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:47:18,329 INFO L87 Difference]: Start difference. First operand 1862 states and 2113 transitions. Second operand 6 states. [2020-10-13 08:47:19,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:47:19,392 INFO L93 Difference]: Finished difference Result 2833 states and 3257 transitions. [2020-10-13 08:47:19,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 08:47:19,393 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 445 [2020-10-13 08:47:19,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:47:19,402 INFO L225 Difference]: With dead ends: 2833 [2020-10-13 08:47:19,402 INFO L226 Difference]: Without dead ends: 1878 [2020-10-13 08:47:19,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-13 08:47:19,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1878 states. [2020-10-13 08:47:19,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1878 to 1862. [2020-10-13 08:47:19,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1862 states. [2020-10-13 08:47:19,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 2108 transitions. [2020-10-13 08:47:19,447 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 2108 transitions. Word has length 445 [2020-10-13 08:47:19,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:47:19,448 INFO L479 AbstractCegarLoop]: Abstraction has 1862 states and 2108 transitions. [2020-10-13 08:47:19,448 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 08:47:19,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 2108 transitions. [2020-10-13 08:47:19,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2020-10-13 08:47:19,454 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:47:19,454 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:47:19,454 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 08:47:19,455 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:47:19,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:47:19,455 INFO L82 PathProgramCache]: Analyzing trace with hash -396772643, now seen corresponding path program 1 times [2020-10-13 08:47:19,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:47:19,456 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1486578668] [2020-10-13 08:47:19,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:47:19,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:19,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:19,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:19,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:20,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:20,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:24,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:24,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 474 [2020-10-13 08:47:24,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:47:24,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-13 08:47:24,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:24,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:47:24,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 341 [2020-10-13 08:47:24,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 08:47:24,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:24,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:47:24,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:24,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:24,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:24,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:47:24,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:24,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 08:47:24,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:24,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:24,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:24,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:24,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:24,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:47:24,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:24,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:24,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:24,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:47:24,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:24,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 08:47:24,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:24,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:24,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:24,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:24,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:24,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:47:24,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:24,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:24,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:24,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:47:24,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:24,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:47:24,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:24,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:24,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:24,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:24,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:24,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-13 08:47:24,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:24,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:24,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:24,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-13 08:47:24,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:24,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-13 08:47:24,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:24,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:47:24,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:24,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-13 08:47:24,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:24,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2020-10-13 08:47:24,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:24,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:24,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:24,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:24,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:47:24,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:47:24,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-13 08:47:24,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:24,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:47:24,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:47:24,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 08:47:24,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:25,100 INFO L134 CoverageAnalysis]: Checked inductivity of 743 backedges. 424 proven. 2 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2020-10-13 08:47:25,100 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1486578668] [2020-10-13 08:47:25,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:47:25,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:47:25,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197329963] [2020-10-13 08:47:25,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:47:25,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:47:25,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:47:25,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:47:25,102 INFO L87 Difference]: Start difference. First operand 1862 states and 2108 transitions. Second operand 7 states. [2020-10-13 08:47:26,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:47:26,685 INFO L93 Difference]: Finished difference Result 3018 states and 3539 transitions. [2020-10-13 08:47:26,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:47:26,685 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 458 [2020-10-13 08:47:26,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:47:26,695 INFO L225 Difference]: With dead ends: 3018 [2020-10-13 08:47:26,695 INFO L226 Difference]: Without dead ends: 1894 [2020-10-13 08:47:26,699 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:47:26,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1894 states. [2020-10-13 08:47:26,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1894 to 1864. [2020-10-13 08:47:26,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1864 states. [2020-10-13 08:47:26,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1864 states to 1864 states and 2100 transitions. [2020-10-13 08:47:26,749 INFO L78 Accepts]: Start accepts. Automaton has 1864 states and 2100 transitions. Word has length 458 [2020-10-13 08:47:26,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:47:26,750 INFO L479 AbstractCegarLoop]: Abstraction has 1864 states and 2100 transitions. [2020-10-13 08:47:26,750 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:47:26,750 INFO L276 IsEmpty]: Start isEmpty. Operand 1864 states and 2100 transitions. [2020-10-13 08:47:26,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2020-10-13 08:47:26,756 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:47:26,756 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:47:26,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 08:47:26,757 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:47:26,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:47:26,757 INFO L82 PathProgramCache]: Analyzing trace with hash -824824253, now seen corresponding path program 1 times [2020-10-13 08:47:26,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:47:26,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1718548808] [2020-10-13 08:47:26,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:47:26,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:26,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:27,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:27,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:28,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:28,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 476 [2020-10-13 08:47:28,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:47:28,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1336 [2020-10-13 08:47:28,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:28,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:47:28,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 343 [2020-10-13 08:47:28,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 08:47:28,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:28,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:47:28,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:28,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:28,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:28,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:47:28,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:28,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:47:28,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:28,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:28,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:28,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:28,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:28,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:47:28,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:28,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:28,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:28,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:47:28,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:28,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:47:28,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:28,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:28,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:28,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:28,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:28,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:47:28,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:28,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:28,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:28,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:47:28,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:28,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:47:28,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:28,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:28,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:28,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:28,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:28,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:47:28,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:28,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:28,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:28,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:47:28,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:28,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 08:47:28,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:28,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:47:28,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:28,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-13 08:47:28,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:28,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-13 08:47:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:28,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:28,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:28,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:47:28,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:28,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 08:47:28,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:28,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:47:28,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:47:28,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 08:47:28,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:28,629 INFO L134 CoverageAnalysis]: Checked inductivity of 751 backedges. 424 proven. 2 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2020-10-13 08:47:28,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1718548808] [2020-10-13 08:47:28,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:47:28,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:47:28,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995056526] [2020-10-13 08:47:28,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:47:28,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:47:28,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:47:28,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:47:28,631 INFO L87 Difference]: Start difference. First operand 1864 states and 2100 transitions. Second operand 7 states. [2020-10-13 08:47:29,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:47:29,949 INFO L93 Difference]: Finished difference Result 3912 states and 4521 transitions. [2020-10-13 08:47:29,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:47:29,957 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 460 [2020-10-13 08:47:29,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:47:29,965 INFO L225 Difference]: With dead ends: 3912 [2020-10-13 08:47:29,966 INFO L226 Difference]: Without dead ends: 2418 [2020-10-13 08:47:29,972 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:47:29,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2418 states. [2020-10-13 08:47:30,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2418 to 2408. [2020-10-13 08:47:30,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2408 states. [2020-10-13 08:47:30,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2408 states to 2408 states and 2656 transitions. [2020-10-13 08:47:30,023 INFO L78 Accepts]: Start accepts. Automaton has 2408 states and 2656 transitions. Word has length 460 [2020-10-13 08:47:30,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:47:30,023 INFO L479 AbstractCegarLoop]: Abstraction has 2408 states and 2656 transitions. [2020-10-13 08:47:30,023 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:47:30,024 INFO L276 IsEmpty]: Start isEmpty. Operand 2408 states and 2656 transitions. [2020-10-13 08:47:30,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2020-10-13 08:47:30,028 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:47:30,028 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:47:30,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 08:47:30,029 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:47:30,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:47:30,029 INFO L82 PathProgramCache]: Analyzing trace with hash 154432442, now seen corresponding path program 1 times [2020-10-13 08:47:30,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:47:30,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1534068002] [2020-10-13 08:47:30,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:47:30,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:30,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:30,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:30,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:30,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 483 [2020-10-13 08:47:30,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:47:30,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 886 [2020-10-13 08:47:30,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:30,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:47:30,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-13 08:47:30,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 08:47:30,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:31,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:47:31,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:31,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:31,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:31,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:47:31,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:31,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:47:31,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:31,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:31,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:31,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:31,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:31,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:47:31,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:31,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:31,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:31,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:47:31,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:31,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:47:31,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:31,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:31,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:31,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:31,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:31,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:47:31,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:31,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:31,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:31,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:47:31,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:31,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:47:31,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:31,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:31,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:31,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:31,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:31,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:47:31,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:31,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:31,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:31,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:47:31,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:31,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 08:47:31,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:31,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:47:31,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:31,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-13 08:47:31,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:31,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:47:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:31,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:31,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:31,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:47:31,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:31,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 08:47:31,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:31,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:47:31,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:47:31,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 08:47:31,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:31,660 INFO L134 CoverageAnalysis]: Checked inductivity of 751 backedges. 424 proven. 2 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2020-10-13 08:47:31,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1534068002] [2020-10-13 08:47:31,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:47:31,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:47:31,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297847167] [2020-10-13 08:47:31,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:47:31,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:47:31,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:47:31,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:47:31,663 INFO L87 Difference]: Start difference. First operand 2408 states and 2656 transitions. Second operand 7 states. [2020-10-13 08:47:33,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:47:33,244 INFO L93 Difference]: Finished difference Result 4828 states and 5466 transitions. [2020-10-13 08:47:33,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 08:47:33,245 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 467 [2020-10-13 08:47:33,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:47:33,255 INFO L225 Difference]: With dead ends: 4828 [2020-10-13 08:47:33,255 INFO L226 Difference]: Without dead ends: 2790 [2020-10-13 08:47:33,260 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:47:33,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2790 states. [2020-10-13 08:47:33,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2790 to 2780. [2020-10-13 08:47:33,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2780 states. [2020-10-13 08:47:33,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 3064 transitions. [2020-10-13 08:47:33,320 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 3064 transitions. Word has length 467 [2020-10-13 08:47:33,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:47:33,321 INFO L479 AbstractCegarLoop]: Abstraction has 2780 states and 3064 transitions. [2020-10-13 08:47:33,321 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:47:33,321 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 3064 transitions. [2020-10-13 08:47:33,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2020-10-13 08:47:33,327 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:47:33,327 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:47:33,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 08:47:33,328 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:47:33,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:47:33,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1640913897, now seen corresponding path program 1 times [2020-10-13 08:47:33,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:47:33,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [964330188] [2020-10-13 08:47:33,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:47:33,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:33,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:33,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:34,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:34,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 524 [2020-10-13 08:47:34,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:47:34,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1187 [2020-10-13 08:47:34,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:34,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:47:34,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-13 08:47:34,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-13 08:47:34,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:34,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:47:34,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:34,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:34,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:34,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:47:34,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:34,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:47:34,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:34,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:34,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:34,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:34,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:34,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:47:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:34,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:34,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:34,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:47:34,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:34,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:47:34,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:34,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:34,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:34,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:34,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:34,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:47:34,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:34,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:34,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:34,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:47:34,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:34,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:47:34,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:34,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:34,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:34,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:34,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:34,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:47:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:34,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:34,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:34,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:47:34,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:34,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 08:47:34,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:34,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:47:34,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:34,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-13 08:47:34,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:34,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:47:34,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:34,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:34,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:34,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-13 08:47:34,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:34,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-13 08:47:34,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:34,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:47:34,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:47:34,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-13 08:47:34,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:35,086 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 538 proven. 2 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2020-10-13 08:47:35,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [964330188] [2020-10-13 08:47:35,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:47:35,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:47:35,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895823345] [2020-10-13 08:47:35,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:47:35,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:47:35,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:47:35,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:47:35,088 INFO L87 Difference]: Start difference. First operand 2780 states and 3064 transitions. Second operand 7 states. [2020-10-13 08:47:36,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:47:36,511 INFO L93 Difference]: Finished difference Result 6124 states and 6965 transitions. [2020-10-13 08:47:36,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 08:47:36,513 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 508 [2020-10-13 08:47:36,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:47:36,526 INFO L225 Difference]: With dead ends: 6124 [2020-10-13 08:47:36,527 INFO L226 Difference]: Without dead ends: 3714 [2020-10-13 08:47:36,532 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 [2020-10-13 08:47:36,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3714 states. [2020-10-13 08:47:36,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3714 to 3706. [2020-10-13 08:47:36,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3706 states. [2020-10-13 08:47:36,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3706 states to 3706 states and 4128 transitions. [2020-10-13 08:47:36,608 INFO L78 Accepts]: Start accepts. Automaton has 3706 states and 4128 transitions. Word has length 508 [2020-10-13 08:47:36,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:47:36,609 INFO L479 AbstractCegarLoop]: Abstraction has 3706 states and 4128 transitions. [2020-10-13 08:47:36,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:47:36,609 INFO L276 IsEmpty]: Start isEmpty. Operand 3706 states and 4128 transitions. [2020-10-13 08:47:36,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2020-10-13 08:47:36,615 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:47:36,615 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:47:36,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 08:47:36,615 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:47:36,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:47:36,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1864997426, now seen corresponding path program 1 times [2020-10-13 08:47:36,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:47:36,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [816292693] [2020-10-13 08:47:36,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:47:36,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:36,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:36,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:36,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:38,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:38,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 566 [2020-10-13 08:47:38,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:47:38,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1781 [2020-10-13 08:47:38,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:38,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:47:38,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 433 [2020-10-13 08:47:38,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 08:47:38,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:38,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:47:38,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:38,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:38,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:38,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:47:38,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:38,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:47:38,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:38,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:38,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:38,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:38,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:38,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:47:38,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:38,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:38,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:38,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:47:38,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:38,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:47:38,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:38,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:38,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:38,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:38,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:38,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:47:38,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:38,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:38,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:38,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:47:38,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:38,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:47:38,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:38,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:38,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:38,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:38,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:38,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:47:38,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:38,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:38,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:38,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:47:38,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:38,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:47:38,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:38,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:38,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:38,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:38,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:38,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:47:38,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:38,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:38,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:38,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:47:38,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:38,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 08:47:38,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:38,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:47:38,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:38,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 08:47:38,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:38,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:47:38,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:38,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:38,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:38,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:47:38,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:38,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 08:47:38,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:38,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:47:38,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:47:38,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 08:47:38,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:39,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1118 backedges. 550 proven. 2 refuted. 0 times theorem prover too weak. 566 trivial. 0 not checked. [2020-10-13 08:47:39,024 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [816292693] [2020-10-13 08:47:39,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:47:39,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:47:39,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007699735] [2020-10-13 08:47:39,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:47:39,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:47:39,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:47:39,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:47:39,026 INFO L87 Difference]: Start difference. First operand 3706 states and 4128 transitions. Second operand 7 states. [2020-10-13 08:47:40,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:47:40,367 INFO L93 Difference]: Finished difference Result 7414 states and 8338 transitions. [2020-10-13 08:47:40,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:47:40,367 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 548 [2020-10-13 08:47:40,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:47:40,381 INFO L225 Difference]: With dead ends: 7414 [2020-10-13 08:47:40,381 INFO L226 Difference]: Without dead ends: 4078 [2020-10-13 08:47:40,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:47:40,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4078 states. [2020-10-13 08:47:40,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4078 to 4070. [2020-10-13 08:47:40,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4070 states. [2020-10-13 08:47:40,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4070 states to 4070 states and 4516 transitions. [2020-10-13 08:47:40,468 INFO L78 Accepts]: Start accepts. Automaton has 4070 states and 4516 transitions. Word has length 548 [2020-10-13 08:47:40,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:47:40,468 INFO L479 AbstractCegarLoop]: Abstraction has 4070 states and 4516 transitions. [2020-10-13 08:47:40,469 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:47:40,469 INFO L276 IsEmpty]: Start isEmpty. Operand 4070 states and 4516 transitions. [2020-10-13 08:47:40,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2020-10-13 08:47:40,476 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:47:40,476 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-13 08:47:40,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 08:47:40,477 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:47:40,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:47:40,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1618016074, now seen corresponding path program 1 times [2020-10-13 08:47:40,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:47:40,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [225326110] [2020-10-13 08:47:40,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:47:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:40,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:40,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:40,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 644 [2020-10-13 08:47:40,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:40,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 425 [2020-10-13 08:47:40,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:40,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:47:40,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-13 08:47:40,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 08:47:40,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:41,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:47:41,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:41,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:41,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:41,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:47:41,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:41,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:47:41,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:41,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:41,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:41,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:41,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:41,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:47:41,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:41,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:41,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:41,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:47:41,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:41,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:47:41,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:41,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:41,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:41,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:41,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:41,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:47:41,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:41,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:41,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:41,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:47:41,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:41,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:47:41,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:41,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:41,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:41,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:41,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:41,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:47:41,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:41,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:41,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:41,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:47:41,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:41,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 08:47:41,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:41,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:41,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:41,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:41,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:41,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:47:41,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:41,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:41,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:41,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 08:47:41,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:41,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-13 08:47:41,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:41,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:47:41,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:41,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-13 08:47:41,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:41,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-13 08:47:41,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:41,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:41,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:41,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:47:41,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:41,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 08:47:41,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:41,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:47:41,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:47:41,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 08:47:41,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:41,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1211 backedges. 550 proven. 2 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2020-10-13 08:47:41,659 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [225326110] [2020-10-13 08:47:41,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:47:41,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:47:41,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071843036] [2020-10-13 08:47:41,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:47:41,660 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:47:41,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:47:41,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:47:41,660 INFO L87 Difference]: Start difference. First operand 4070 states and 4516 transitions. Second operand 7 states. [2020-10-13 08:47:43,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:47:43,856 INFO L93 Difference]: Finished difference Result 8152 states and 9213 transitions. [2020-10-13 08:47:43,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 08:47:43,857 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 626 [2020-10-13 08:47:43,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:47:43,870 INFO L225 Difference]: With dead ends: 8152 [2020-10-13 08:47:43,870 INFO L226 Difference]: Without dead ends: 4452 [2020-10-13 08:47:43,877 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:47:43,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4452 states. [2020-10-13 08:47:43,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4452 to 4440. [2020-10-13 08:47:43,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4440 states. [2020-10-13 08:47:43,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4440 states to 4440 states and 4914 transitions. [2020-10-13 08:47:43,958 INFO L78 Accepts]: Start accepts. Automaton has 4440 states and 4914 transitions. Word has length 626 [2020-10-13 08:47:43,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:47:43,959 INFO L479 AbstractCegarLoop]: Abstraction has 4440 states and 4914 transitions. [2020-10-13 08:47:43,959 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:47:43,959 INFO L276 IsEmpty]: Start isEmpty. Operand 4440 states and 4914 transitions. [2020-10-13 08:47:43,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2020-10-13 08:47:43,968 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:47:43,969 INFO L422 BasicCegarLoop]: trace histogram [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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:47:43,969 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 08:47:43,970 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:47:43,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:47:43,970 INFO L82 PathProgramCache]: Analyzing trace with hash -970508781, now seen corresponding path program 1 times [2020-10-13 08:47:43,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:47:43,971 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [708461726] [2020-10-13 08:47:43,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:47:44,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:44,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:44,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:45,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:45,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 722 [2020-10-13 08:47:45,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:47:45,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1525 [2020-10-13 08:47:45,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:45,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:47:45,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 589 [2020-10-13 08:47:45,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 08:47:45,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:45,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:47:45,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:45,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:45,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:45,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:47:45,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:45,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:47:45,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:45,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:45,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:45,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:45,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:45,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:47:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:45,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:45,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:45,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:47:45,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:45,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:47:45,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:45,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:45,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:45,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:45,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:45,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:47:45,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:45,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:45,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:45,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:47:45,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:45,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:47:45,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:45,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:45,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:45,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:45,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:45,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:47:45,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:45,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:45,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:45,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:47:45,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:45,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 08:47:45,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:45,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:45,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:45,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:45,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:45,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:47:45,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:45,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:45,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:45,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 08:47:45,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:45,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 08:47:45,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:45,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:45,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:45,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:45,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:45,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-13 08:47:45,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:45,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:45,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:45,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:47:45,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:45,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 08:47:45,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:45,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:47:45,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:45,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 08:47:45,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:45,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-10-13 08:47:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:45,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:46,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:46,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:47:46,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:46,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-13 08:47:46,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:46,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:47:46,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:47:46,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 08:47:46,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:46,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1639 backedges. 676 proven. 2 refuted. 0 times theorem prover too weak. 961 trivial. 0 not checked. [2020-10-13 08:47:46,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [708461726] [2020-10-13 08:47:46,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:47:46,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:47:46,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528359733] [2020-10-13 08:47:46,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:47:46,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:47:46,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:47:46,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:47:46,732 INFO L87 Difference]: Start difference. First operand 4440 states and 4914 transitions. Second operand 7 states. [2020-10-13 08:47:48,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:47:48,669 INFO L93 Difference]: Finished difference Result 9430 states and 10668 transitions. [2020-10-13 08:47:48,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 08:47:48,669 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 702 [2020-10-13 08:47:48,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:47:48,687 INFO L225 Difference]: With dead ends: 9430 [2020-10-13 08:47:48,689 INFO L226 Difference]: Without dead ends: 5360 [2020-10-13 08:47:48,696 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-13 08:47:48,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5360 states. [2020-10-13 08:47:48,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5360 to 5176. [2020-10-13 08:47:48,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5176 states. [2020-10-13 08:47:48,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5176 states to 5176 states and 5722 transitions. [2020-10-13 08:47:48,793 INFO L78 Accepts]: Start accepts. Automaton has 5176 states and 5722 transitions. Word has length 702 [2020-10-13 08:47:48,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:47:48,793 INFO L479 AbstractCegarLoop]: Abstraction has 5176 states and 5722 transitions. [2020-10-13 08:47:48,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:47:48,794 INFO L276 IsEmpty]: Start isEmpty. Operand 5176 states and 5722 transitions. [2020-10-13 08:47:48,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 744 [2020-10-13 08:47:48,806 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:47:48,808 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 4, 3, 3, 3, 3, 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] [2020-10-13 08:47:48,809 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 08:47:48,809 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:47:48,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:47:48,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1584574032, now seen corresponding path program 1 times [2020-10-13 08:47:48,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:47:48,810 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1537867216] [2020-10-13 08:47:48,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:47:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:49,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:49,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:50,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:52,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:52,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 763 [2020-10-13 08:47:52,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:47:52,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3354 [2020-10-13 08:47:52,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:52,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:47:52,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-13 08:47:52,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 08:47:52,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:52,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:47:52,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:52,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:52,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:52,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:47:52,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:52,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:47:52,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:52,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:52,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:52,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:52,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:52,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:47:52,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:52,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:52,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:52,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:47:52,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:52,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:47:52,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:52,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:52,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:52,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:52,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:52,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:47:52,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:52,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:52,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:52,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:47:52,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:52,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 08:47:52,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:52,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:52,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:52,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:52,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:52,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:47:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:52,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:52,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:52,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:47:52,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:52,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:47:52,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:52,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:52,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:52,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:52,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:52,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:47:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:52,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:52,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:52,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 08:47:52,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:52,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 08:47:52,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:52,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:47:52,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:47:52,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-13 08:47:52,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:52,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-13 08:47:52,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:52,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:52,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:52,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:47:52,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:52,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 08:47:52,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:52,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:47:52,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:47:52,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 08:47:52,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:52,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-10-13 08:47:52,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:52,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:52,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:47:52,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-13 08:47:52,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:47:52,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 08:47:52,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:47:52,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:47:52,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 112 [2020-10-13 08:47:52,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:47:52,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:47:53,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1797 backedges. 629 proven. 75 refuted. 0 times theorem prover too weak. 1093 trivial. 0 not checked. [2020-10-13 08:47:53,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1537867216] [2020-10-13 08:47:53,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:47:53,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:47:53,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181140137] [2020-10-13 08:47:53,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:47:53,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:47:53,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:47:53,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:47:53,105 INFO L87 Difference]: Start difference. First operand 5176 states and 5722 transitions. Second operand 8 states. [2020-10-13 08:47:55,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:47:55,040 INFO L93 Difference]: Finished difference Result 12570 states and 14369 transitions. [2020-10-13 08:47:55,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 08:47:55,041 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 743 [2020-10-13 08:47:55,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:47:55,061 INFO L225 Difference]: With dead ends: 12570 [2020-10-13 08:47:55,061 INFO L226 Difference]: Without dead ends: 7764 [2020-10-13 08:47:55,071 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-13 08:47:55,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7764 states. [2020-10-13 08:47:55,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7764 to 7580. [2020-10-13 08:47:55,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7580 states. [2020-10-13 08:47:55,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7580 states to 7580 states and 8613 transitions. [2020-10-13 08:47:55,215 INFO L78 Accepts]: Start accepts. Automaton has 7580 states and 8613 transitions. Word has length 743 [2020-10-13 08:47:55,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:47:55,216 INFO L479 AbstractCegarLoop]: Abstraction has 7580 states and 8613 transitions. [2020-10-13 08:47:55,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:47:55,216 INFO L276 IsEmpty]: Start isEmpty. Operand 7580 states and 8613 transitions. [2020-10-13 08:47:55,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 746 [2020-10-13 08:47:55,228 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:47:55,229 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:47:55,230 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 08:47:55,230 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:47:55,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:47:55,230 INFO L82 PathProgramCache]: Analyzing trace with hash -254955798, now seen corresponding path program 1 times [2020-10-13 08:47:55,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:47:55,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1326324293] [2020-10-13 08:47:55,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:47:55,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:47:55,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:55,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:55,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:55,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:47:57,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:00,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:00,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 765 [2020-10-13 08:48:00,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:48:00,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-13 08:48:00,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:00,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:00,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-13 08:48:00,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-13 08:48:00,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:00,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:00,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:00,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:00,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:00,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:00,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:48:00,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:00,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:00,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:00,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:00,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:00,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:00,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:00,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:00,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:48:00,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:00,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:48:00,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:00,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:00,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:00,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:00,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:00,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:48:00,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:00,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:00,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:00,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:48:00,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:00,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 08:48:00,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:00,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:00,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:00,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:00,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:00,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:48:00,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:00,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:00,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:00,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:48:00,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:00,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:48:00,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:00,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:00,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:00,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:00,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:00,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:48:00,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:00,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:00,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:00,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 08:48:00,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:00,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-13 08:48:00,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:00,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:00,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:00,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-13 08:48:00,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:00,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-13 08:48:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:00,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:00,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:00,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:48:00,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:00,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-13 08:48:00,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:00,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:00,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:48:00,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-13 08:48:00,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:00,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 622 [2020-10-13 08:48:00,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:00,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:00,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:00,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:48:00,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:00,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:48:00,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:00,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:00,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-13 08:48:00,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:00,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:01,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1790 backedges. 780 proven. 72 refuted. 0 times theorem prover too weak. 938 trivial. 0 not checked. [2020-10-13 08:48:01,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1326324293] [2020-10-13 08:48:01,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:01,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:48:01,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147884863] [2020-10-13 08:48:01,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:48:01,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:01,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:48:01,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:48:01,189 INFO L87 Difference]: Start difference. First operand 7580 states and 8613 transitions. Second operand 7 states. [2020-10-13 08:48:02,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:02,564 INFO L93 Difference]: Finished difference Result 13906 states and 15863 transitions. [2020-10-13 08:48:02,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:48:02,566 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 745 [2020-10-13 08:48:02,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:02,583 INFO L225 Difference]: With dead ends: 13906 [2020-10-13 08:48:02,583 INFO L226 Difference]: Without dead ends: 6696 [2020-10-13 08:48:02,596 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:48:02,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6696 states. [2020-10-13 08:48:02,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6696 to 5018. [2020-10-13 08:48:02,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5018 states. [2020-10-13 08:48:02,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 5644 transitions. [2020-10-13 08:48:02,708 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 5644 transitions. Word has length 745 [2020-10-13 08:48:02,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:02,709 INFO L479 AbstractCegarLoop]: Abstraction has 5018 states and 5644 transitions. [2020-10-13 08:48:02,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:48:02,709 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 5644 transitions. [2020-10-13 08:48:02,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 789 [2020-10-13 08:48:02,722 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:02,723 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:02,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 08:48:02,724 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:02,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:02,725 INFO L82 PathProgramCache]: Analyzing trace with hash 983917279, now seen corresponding path program 1 times [2020-10-13 08:48:02,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:02,730 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1631932613] [2020-10-13 08:48:02,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:02,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:02,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:03,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:03,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:06,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:06,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 808 [2020-10-13 08:48:06,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:48:06,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3957 [2020-10-13 08:48:06,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:06,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:48:06,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 675 [2020-10-13 08:48:06,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 08:48:06,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:06,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:06,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:06,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:07,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:07,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:07,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:07,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:48:07,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:07,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:07,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:07,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:07,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:07,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:07,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:07,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:07,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:07,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:48:07,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:07,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 08:48:07,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:07,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:07,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:07,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:07,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:07,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:48:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:07,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:07,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:07,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:48:07,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:07,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:48:07,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:07,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:07,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:07,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:07,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:07,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:48:07,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:07,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:07,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:07,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:48:07,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:07,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:48:07,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:07,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:07,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:07,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:07,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:07,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:48:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:07,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:07,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:07,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 08:48:07,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:07,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 08:48:07,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:07,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:07,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:07,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:07,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:07,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-13 08:48:07,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:07,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:07,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:07,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-13 08:48:07,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:07,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-13 08:48:07,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:07,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:07,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:07,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-13 08:48:07,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:07,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 665 [2020-10-13 08:48:07,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:07,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:07,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:07,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:48:07,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:07,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-13 08:48:07,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:07,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 08:48:07,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:48:07,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 08:48:07,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:08,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1830 backedges. 644 proven. 34 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2020-10-13 08:48:08,403 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1631932613] [2020-10-13 08:48:08,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:08,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:48:08,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889419424] [2020-10-13 08:48:08,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:48:08,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:08,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:48:08,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:48:08,408 INFO L87 Difference]: Start difference. First operand 5018 states and 5644 transitions. Second operand 8 states. [2020-10-13 08:48:10,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:10,536 INFO L93 Difference]: Finished difference Result 11584 states and 13254 transitions. [2020-10-13 08:48:10,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 08:48:10,537 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 788 [2020-10-13 08:48:10,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:10,551 INFO L225 Difference]: With dead ends: 11584 [2020-10-13 08:48:10,551 INFO L226 Difference]: Without dead ends: 6682 [2020-10-13 08:48:10,560 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-13 08:48:10,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6682 states. [2020-10-13 08:48:10,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6682 to 6672. [2020-10-13 08:48:10,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6672 states. [2020-10-13 08:48:10,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6672 states to 6672 states and 7607 transitions. [2020-10-13 08:48:10,676 INFO L78 Accepts]: Start accepts. Automaton has 6672 states and 7607 transitions. Word has length 788 [2020-10-13 08:48:10,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:10,676 INFO L479 AbstractCegarLoop]: Abstraction has 6672 states and 7607 transitions. [2020-10-13 08:48:10,677 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:48:10,677 INFO L276 IsEmpty]: Start isEmpty. Operand 6672 states and 7607 transitions. [2020-10-13 08:48:10,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 841 [2020-10-13 08:48:10,689 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:10,689 INFO L422 BasicCegarLoop]: trace histogram [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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:10,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 08:48:10,689 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:10,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:10,690 INFO L82 PathProgramCache]: Analyzing trace with hash 173295725, now seen corresponding path program 1 times [2020-10-13 08:48:10,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:10,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1526918056] [2020-10-13 08:48:10,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:10,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:10,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:11,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:11,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 860 [2020-10-13 08:48:11,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:11,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 642 [2020-10-13 08:48:11,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:11,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:11,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 686 [2020-10-13 08:48:11,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-13 08:48:11,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:11,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:11,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:11,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:11,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:11,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:11,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:11,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:48:11,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:11,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:11,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:11,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:11,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:11,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:11,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:11,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:11,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:11,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:48:11,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:11,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 08:48:11,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:11,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:11,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:11,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:11,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:11,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:48:11,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:11,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:11,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:11,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:48:11,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:11,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:48:11,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:11,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:11,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:11,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:11,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:11,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:48:11,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:11,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:11,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:11,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:48:11,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:11,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:48:11,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:11,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:11,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:11,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:11,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:11,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:48:11,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:11,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:11,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:11,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 08:48:11,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:11,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:48:11,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:11,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:11,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:11,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:11,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:11,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-13 08:48:11,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:11,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:11,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:11,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-13 08:48:11,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:11,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-13 08:48:11,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:11,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:11,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:11,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-13 08:48:11,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:11,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 676 [2020-10-13 08:48:11,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:11,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:11,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:11,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-13 08:48:11,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:11,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-13 08:48:11,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:11,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:11,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:48:11,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-13 08:48:11,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:12,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 872 proven. 2 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2020-10-13 08:48:12,314 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1526918056] [2020-10-13 08:48:12,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:12,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:48:12,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691019582] [2020-10-13 08:48:12,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:48:12,315 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:12,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:48:12,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:48:12,316 INFO L87 Difference]: Start difference. First operand 6672 states and 7607 transitions. Second operand 7 states. [2020-10-13 08:48:14,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:14,139 INFO L93 Difference]: Finished difference Result 13174 states and 15046 transitions. [2020-10-13 08:48:14,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:48:14,140 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 840 [2020-10-13 08:48:14,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:14,156 INFO L225 Difference]: With dead ends: 13174 [2020-10-13 08:48:14,156 INFO L226 Difference]: Without dead ends: 6690 [2020-10-13 08:48:14,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:48:14,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6690 states. [2020-10-13 08:48:14,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6690 to 6678. [2020-10-13 08:48:14,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6678 states. [2020-10-13 08:48:14,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6678 states to 6678 states and 7540 transitions. [2020-10-13 08:48:14,283 INFO L78 Accepts]: Start accepts. Automaton has 6678 states and 7540 transitions. Word has length 840 [2020-10-13 08:48:14,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:14,284 INFO L479 AbstractCegarLoop]: Abstraction has 6678 states and 7540 transitions. [2020-10-13 08:48:14,284 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:48:14,284 INFO L276 IsEmpty]: Start isEmpty. Operand 6678 states and 7540 transitions. [2020-10-13 08:48:14,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 922 [2020-10-13 08:48:14,297 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:14,298 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:14,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 08:48:14,298 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:14,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:14,299 INFO L82 PathProgramCache]: Analyzing trace with hash 425965937, now seen corresponding path program 1 times [2020-10-13 08:48:14,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:14,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1939520868] [2020-10-13 08:48:14,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:14,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:14,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:15,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:16,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:19,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:19,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 943 [2020-10-13 08:48:19,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:48:19,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-13 08:48:19,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:19,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:48:19,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 810 [2020-10-13 08:48:19,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 08:48:19,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:19,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:19,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:19,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:19,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:19,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:19,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:19,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:48:19,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:19,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:19,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:19,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:19,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:19,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:19,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:19,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:19,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:19,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:48:19,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:19,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:48:19,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:19,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:19,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:19,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:19,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:19,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:48:19,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:19,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:19,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:19,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:48:19,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:19,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:48:19,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:19,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:19,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:19,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:19,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:19,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:48:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:19,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:19,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:19,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:48:19,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:19,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 08:48:19,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:19,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:19,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:19,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:19,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:19,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:48:19,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:19,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:19,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:19,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 08:48:19,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:19,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:48:19,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:19,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:19,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:19,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:19,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:19,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-13 08:48:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:19,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:19,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:19,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-13 08:48:19,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:19,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 08:48:19,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:19,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:19,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:19,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:19,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:19,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 665 [2020-10-13 08:48:19,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:19,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:19,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:19,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-13 08:48:19,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:19,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-13 08:48:20,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:20,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:20,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:20,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-13 08:48:20,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:20,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 798 [2020-10-13 08:48:20,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:20,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:20,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:20,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:48:20,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:20,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-13 08:48:20,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:20,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 08:48:20,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:48:20,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 08:48:20,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:20,907 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 769 proven. 35 refuted. 0 times theorem prover too weak. 1752 trivial. 0 not checked. [2020-10-13 08:48:20,908 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1939520868] [2020-10-13 08:48:20,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:20,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:48:20,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866223156] [2020-10-13 08:48:20,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:48:20,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:20,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:48:20,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:48:20,912 INFO L87 Difference]: Start difference. First operand 6678 states and 7540 transitions. Second operand 8 states. [2020-10-13 08:48:22,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:22,908 INFO L93 Difference]: Finished difference Result 14513 states and 16587 transitions. [2020-10-13 08:48:22,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 08:48:22,915 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 921 [2020-10-13 08:48:22,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:22,931 INFO L225 Difference]: With dead ends: 14513 [2020-10-13 08:48:22,931 INFO L226 Difference]: Without dead ends: 7984 [2020-10-13 08:48:22,942 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-13 08:48:22,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7984 states. [2020-10-13 08:48:23,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7984 to 7970. [2020-10-13 08:48:23,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7970 states. [2020-10-13 08:48:23,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7970 states to 7970 states and 9135 transitions. [2020-10-13 08:48:23,081 INFO L78 Accepts]: Start accepts. Automaton has 7970 states and 9135 transitions. Word has length 921 [2020-10-13 08:48:23,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:23,082 INFO L479 AbstractCegarLoop]: Abstraction has 7970 states and 9135 transitions. [2020-10-13 08:48:23,083 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:48:23,083 INFO L276 IsEmpty]: Start isEmpty. Operand 7970 states and 9135 transitions. [2020-10-13 08:48:23,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 963 [2020-10-13 08:48:23,106 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:23,107 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 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, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:23,107 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 08:48:23,107 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:23,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:23,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1557549038, now seen corresponding path program 1 times [2020-10-13 08:48:23,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:23,109 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1456124677] [2020-10-13 08:48:23,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:23,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:23,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:23,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:26,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:26,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 984 [2020-10-13 08:48:26,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:48:26,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3096 [2020-10-13 08:48:26,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:26,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:26,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 810 [2020-10-13 08:48:26,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-13 08:48:26,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:26,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:26,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:26,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:26,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:26,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:26,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:26,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:48:26,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:26,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:26,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:26,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:26,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:26,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:26,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:26,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:26,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:48:26,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:26,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:48:26,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:26,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:26,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:26,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:26,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:26,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:48:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:26,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:26,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:26,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:48:26,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:26,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:48:26,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:26,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:26,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:26,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:26,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:26,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:48:26,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:26,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:26,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:26,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:48:26,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:26,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:48:26,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:26,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:26,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:26,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:26,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:26,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:48:26,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:26,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:26,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:26,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 08:48:26,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:26,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 08:48:26,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:26,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:26,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:26,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:26,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:26,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-13 08:48:26,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:26,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:26,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:26,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-13 08:48:26,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:26,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 08:48:26,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:26,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:26,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:26,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:26,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:26,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 665 [2020-10-13 08:48:26,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:26,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:26,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:26,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-13 08:48:26,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:26,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-13 08:48:26,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:26,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:26,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:26,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-13 08:48:26,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:26,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 798 [2020-10-13 08:48:26,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:26,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:26,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:26,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-13 08:48:26,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:26,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-13 08:48:26,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:26,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:26,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:48:26,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-13 08:48:26,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:27,404 INFO L134 CoverageAnalysis]: Checked inductivity of 2793 backedges. 1039 proven. 2 refuted. 0 times theorem prover too weak. 1752 trivial. 0 not checked. [2020-10-13 08:48:27,405 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1456124677] [2020-10-13 08:48:27,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:27,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:48:27,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107147653] [2020-10-13 08:48:27,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:48:27,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:27,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:48:27,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:48:27,407 INFO L87 Difference]: Start difference. First operand 7970 states and 9135 transitions. Second operand 7 states. [2020-10-13 08:48:29,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:29,021 INFO L93 Difference]: Finished difference Result 15958 states and 18315 transitions. [2020-10-13 08:48:29,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:48:29,023 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 962 [2020-10-13 08:48:29,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:29,035 INFO L225 Difference]: With dead ends: 15958 [2020-10-13 08:48:29,035 INFO L226 Difference]: Without dead ends: 8176 [2020-10-13 08:48:29,044 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:48:29,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8176 states. [2020-10-13 08:48:29,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8176 to 7790. [2020-10-13 08:48:29,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7790 states. [2020-10-13 08:48:29,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7790 states to 7790 states and 8809 transitions. [2020-10-13 08:48:29,186 INFO L78 Accepts]: Start accepts. Automaton has 7790 states and 8809 transitions. Word has length 962 [2020-10-13 08:48:29,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:29,188 INFO L479 AbstractCegarLoop]: Abstraction has 7790 states and 8809 transitions. [2020-10-13 08:48:29,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:48:29,188 INFO L276 IsEmpty]: Start isEmpty. Operand 7790 states and 8809 transitions. [2020-10-13 08:48:29,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1164 [2020-10-13 08:48:29,214 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:29,217 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:29,218 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 08:48:29,218 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:29,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:29,219 INFO L82 PathProgramCache]: Analyzing trace with hash 198961069, now seen corresponding path program 1 times [2020-10-13 08:48:29,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:29,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [997757755] [2020-10-13 08:48:29,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:29,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:29,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:29,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:32,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:34,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:34,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1189 [2020-10-13 08:48:34,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:48:34,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-13 08:48:34,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:34,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:34,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1015 [2020-10-13 08:48:34,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 08:48:34,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:34,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:34,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:34,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:34,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:34,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:34,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:34,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:48:34,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:34,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:34,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:34,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:34,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:34,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:34,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:34,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:34,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:34,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:48:34,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:34,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 08:48:34,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:34,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:34,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:34,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:34,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:34,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:48:34,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:34,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:34,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:34,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:48:34,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:34,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 08:48:34,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:34,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:34,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:34,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:34,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:34,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:48:34,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:34,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:34,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:34,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:48:34,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:34,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 08:48:34,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:34,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:34,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:34,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:34,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:34,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:48:34,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:34,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:34,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:34,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:48:34,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:34,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 08:48:34,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:34,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:34,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:34,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:34,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:34,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:48:34,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:34,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:35,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:35,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:48:35,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:35,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 08:48:35,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:35,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:35,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:35,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:35,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:35,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:48:35,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:35,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:35,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:35,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:48:35,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:35,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:48:35,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:35,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:35,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:35,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:35,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:35,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:48:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:35,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:35,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:35,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:48:35,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:35,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 08:48:35,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:35,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:35,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:35,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:35,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:35,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:48:35,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:35,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:35,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:35,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-13 08:48:35,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:35,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-13 08:48:35,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:35,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:35,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:35,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-13 08:48:35,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:35,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 999 [2020-10-13 08:48:35,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:35,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:35,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:35,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:35,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-13 08:48:35,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:48:35,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-10-13 08:48:35,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:35,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:35,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:48:35,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-13 08:48:35,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:36,351 INFO L134 CoverageAnalysis]: Checked inductivity of 4106 backedges. 1302 proven. 2 refuted. 0 times theorem prover too weak. 2802 trivial. 0 not checked. [2020-10-13 08:48:36,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [997757755] [2020-10-13 08:48:36,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:36,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:48:36,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779118404] [2020-10-13 08:48:36,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:48:36,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:36,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:48:36,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:48:36,354 INFO L87 Difference]: Start difference. First operand 7790 states and 8809 transitions. Second operand 7 states. [2020-10-13 08:48:38,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:38,028 INFO L93 Difference]: Finished difference Result 15610 states and 17695 transitions. [2020-10-13 08:48:38,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:48:38,028 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1163 [2020-10-13 08:48:38,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:38,044 INFO L225 Difference]: With dead ends: 15610 [2020-10-13 08:48:38,044 INFO L226 Difference]: Without dead ends: 7988 [2020-10-13 08:48:38,054 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:48:38,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7988 states. [2020-10-13 08:48:38,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7988 to 7790. [2020-10-13 08:48:38,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7790 states. [2020-10-13 08:48:38,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7790 states to 7790 states and 8761 transitions. [2020-10-13 08:48:38,171 INFO L78 Accepts]: Start accepts. Automaton has 7790 states and 8761 transitions. Word has length 1163 [2020-10-13 08:48:38,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:38,172 INFO L479 AbstractCegarLoop]: Abstraction has 7790 states and 8761 transitions. [2020-10-13 08:48:38,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:48:38,173 INFO L276 IsEmpty]: Start isEmpty. Operand 7790 states and 8761 transitions. [2020-10-13 08:48:38,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1165 [2020-10-13 08:48:38,188 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:38,189 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:38,189 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-13 08:48:38,189 INFO L427 AbstractCegarLoop]: === Iteration 28 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:38,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:38,190 INFO L82 PathProgramCache]: Analyzing trace with hash 2057060552, now seen corresponding path program 1 times [2020-10-13 08:48:38,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:38,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [742167333] [2020-10-13 08:48:38,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:38,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:38,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:39,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:39,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:40,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:41,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:43,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:43,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1190 [2020-10-13 08:48:43,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:48:43,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-13 08:48:43,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:43,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:43,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1132 [2020-10-13 08:48:43,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-13 08:48:43,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:43,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:43,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:43,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:43,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:43,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:43,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:43,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:48:43,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:43,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:43,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:43,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:43,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:43,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:43,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:43,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:43,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:48:43,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:43,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 08:48:43,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:43,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:43,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:43,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:43,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:43,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:48:43,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:43,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:43,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:43,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:48:43,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:43,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 08:48:43,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:43,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:43,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:43,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:43,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:43,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:48:43,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:43,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:43,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:43,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:48:43,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:43,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:48:43,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:43,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:43,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:43,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:43,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:43,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:48:43,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:43,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:43,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:43,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:48:43,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:43,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:48:43,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:43,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:43,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:43,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:43,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:43,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:48:43,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:43,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:43,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:43,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:48:43,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:43,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 08:48:43,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:43,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:43,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:43,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:43,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:43,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:48:43,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:43,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:43,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:43,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:48:43,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:43,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:48:43,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:43,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:43,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:43,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:43,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:43,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:48:43,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:43,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:43,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:43,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:48:43,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:43,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:48:43,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:43,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:43,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:43,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:43,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:43,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:48:43,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:43,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:43,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:43,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:48:43,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:43,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:48:43,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:43,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:43,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:43,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:43,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:43,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 936 [2020-10-13 08:48:43,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:44,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:44,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:44,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-13 08:48:44,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:44,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-13 08:48:44,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:44,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:44,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:44,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-13 08:48:44,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:48:44,942 INFO L134 CoverageAnalysis]: Checked inductivity of 3974 backedges. 474 proven. 9 refuted. 0 times theorem prover too weak. 3491 trivial. 0 not checked. [2020-10-13 08:48:44,943 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [742167333] [2020-10-13 08:48:44,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:44,943 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:48:44,944 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364107539] [2020-10-13 08:48:44,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:48:44,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:44,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:48:44,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:48:44,945 INFO L87 Difference]: Start difference. First operand 7790 states and 8761 transitions. Second operand 5 states. [2020-10-13 08:48:45,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:45,868 INFO L93 Difference]: Finished difference Result 15245 states and 17167 transitions. [2020-10-13 08:48:45,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:48:45,869 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1164 [2020-10-13 08:48:45,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:45,884 INFO L225 Difference]: With dead ends: 15245 [2020-10-13 08:48:45,884 INFO L226 Difference]: Without dead ends: 7614 [2020-10-13 08:48:45,893 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:48:45,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7614 states. [2020-10-13 08:48:46,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7614 to 7606. [2020-10-13 08:48:46,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7606 states. [2020-10-13 08:48:46,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7606 states to 7606 states and 8526 transitions. [2020-10-13 08:48:46,021 INFO L78 Accepts]: Start accepts. Automaton has 7606 states and 8526 transitions. Word has length 1164 [2020-10-13 08:48:46,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:46,022 INFO L479 AbstractCegarLoop]: Abstraction has 7606 states and 8526 transitions. [2020-10-13 08:48:46,022 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:48:46,023 INFO L276 IsEmpty]: Start isEmpty. Operand 7606 states and 8526 transitions. [2020-10-13 08:48:46,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1212 [2020-10-13 08:48:46,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:46,049 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 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, 6, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:46,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-13 08:48:46,050 INFO L427 AbstractCegarLoop]: === Iteration 29 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:46,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:46,051 INFO L82 PathProgramCache]: Analyzing trace with hash -334118278, now seen corresponding path program 1 times [2020-10-13 08:48:46,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:46,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [633428946] [2020-10-13 08:48:46,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:46,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:46,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:47,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:51,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:51,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1239 [2020-10-13 08:48:51,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:48:51,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-13 08:48:51,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:51,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:51,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1065 [2020-10-13 08:48:51,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 08:48:51,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:51,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:48:51,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:51,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:51,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:51,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:48:51,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:51,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:48:51,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:51,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:51,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:51,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:51,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-13 08:48:51,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:48:51,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:51,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:51,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:51,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:48:51,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:51,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 08:48:51,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:51,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:51,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:51,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:51,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:51,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:48:51,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:51,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:51,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:51,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:48:51,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:51,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:48:51,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:51,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:51,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:51,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:51,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:51,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:48:51,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:51,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:51,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:51,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:48:51,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:51,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:48:51,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:51,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:51,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:51,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:51,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:51,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:48:51,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:51,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:51,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:51,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:48:51,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:51,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:48:51,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:51,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:51,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:51,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:51,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:51,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:48:51,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:51,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:51,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:51,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:48:51,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:51,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 08:48:51,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:51,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:51,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:51,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:51,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:51,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:48:51,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:51,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:51,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:51,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:48:51,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:51,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:48:51,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:51,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:51,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:51,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:51,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:51,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:48:51,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:51,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:51,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:51,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:48:51,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:51,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:48:51,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:51,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:51,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:51,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:51,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:51,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:48:51,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:51,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:51,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:51,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:48:51,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:51,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:48:51,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:51,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:48:51,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:51,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:48:51,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:51,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 936 [2020-10-13 08:48:51,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:51,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:51,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:51,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-13 08:48:51,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:48:51,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-13 08:48:51,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:51,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:48:51,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:48:51,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-13 08:48:51,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:51,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1047 [2020-10-13 08:48:51,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:51,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:51,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:52,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:52,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-13 08:48:52,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:48:52,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-13 08:48:52,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:52,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:48:52,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:48:52,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-13 08:48:52,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:48:52,860 INFO L134 CoverageAnalysis]: Checked inductivity of 4794 backedges. 1431 proven. 2 refuted. 0 times theorem prover too weak. 3361 trivial. 0 not checked. [2020-10-13 08:48:52,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [633428946] [2020-10-13 08:48:52,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:48:52,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:48:52,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572692752] [2020-10-13 08:48:52,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:48:52,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:48:52,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:48:52,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:48:52,862 INFO L87 Difference]: Start difference. First operand 7606 states and 8526 transitions. Second operand 7 states. [2020-10-13 08:48:54,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:48:54,640 INFO L93 Difference]: Finished difference Result 16718 states and 18630 transitions. [2020-10-13 08:48:54,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 08:48:54,641 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1211 [2020-10-13 08:48:54,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:48:54,654 INFO L225 Difference]: With dead ends: 16718 [2020-10-13 08:48:54,654 INFO L226 Difference]: Without dead ends: 9268 [2020-10-13 08:48:54,661 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:48:54,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9268 states. [2020-10-13 08:48:54,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9268 to 7604. [2020-10-13 08:48:54,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7604 states. [2020-10-13 08:48:54,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7604 states to 7604 states and 8509 transitions. [2020-10-13 08:48:54,775 INFO L78 Accepts]: Start accepts. Automaton has 7604 states and 8509 transitions. Word has length 1211 [2020-10-13 08:48:54,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:48:54,776 INFO L479 AbstractCegarLoop]: Abstraction has 7604 states and 8509 transitions. [2020-10-13 08:48:54,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:48:54,776 INFO L276 IsEmpty]: Start isEmpty. Operand 7604 states and 8509 transitions. [2020-10-13 08:48:54,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1230 [2020-10-13 08:48:54,791 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:48:54,792 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:48:54,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-13 08:48:54,792 INFO L427 AbstractCegarLoop]: === Iteration 30 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:48:54,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:48:54,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1257371626, now seen corresponding path program 1 times [2020-10-13 08:48:54,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:48:54,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [518471289] [2020-10-13 08:48:54,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:48:54,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:48:55,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:55,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:56,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:59,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:48:59,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:48:59,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1257 [2020-10-13 08:48:59,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:48:59,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-13 08:48:59,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:48:59,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:48:59,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1124 [2020-10-13 08:48:59,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 08:48:59,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:00,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:00,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:00,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:00,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:00,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:00,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:00,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:49:00,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:00,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:00,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:00,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:00,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:00,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:00,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:00,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:00,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:00,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:49:00,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:00,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:49:00,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:00,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:00,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:00,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:00,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:00,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:49:00,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:00,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:00,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:00,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:49:00,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:00,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:49:00,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:00,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:00,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:00,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:00,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:00,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:49:00,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:00,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:00,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:00,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:49:00,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:00,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:49:00,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:00,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:00,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:00,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:00,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:00,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:49:00,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:00,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:00,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:00,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:49:00,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:00,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:49:00,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:00,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:00,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:00,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:00,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:00,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:49:00,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:00,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:00,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:00,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:49:00,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:00,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 08:49:00,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:00,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:00,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:00,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:00,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:00,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:49:00,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:00,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:00,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:00,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:49:00,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:00,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:49:00,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:00,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:00,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:00,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:00,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:00,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:49:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:00,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:00,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:00,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:49:00,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:00,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:49:00,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:00,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:00,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:00,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:00,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:00,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:49:00,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:00,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:00,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:00,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-13 08:49:00,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:00,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 08:49:00,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:00,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:00,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:00,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:00,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:00,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 987 [2020-10-13 08:49:00,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:00,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:00,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:00,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:49:00,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:00,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 08:49:00,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:00,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:00,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:00,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-13 08:49:00,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:00,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1106 [2020-10-13 08:49:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:00,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:00,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:00,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:00,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:49:00,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:49:00,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-13 08:49:00,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:00,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:49:00,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:49:00,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 08:49:00,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:01,896 INFO L134 CoverageAnalysis]: Checked inductivity of 4808 backedges. 1180 proven. 2 refuted. 0 times theorem prover too weak. 3626 trivial. 0 not checked. [2020-10-13 08:49:01,896 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [518471289] [2020-10-13 08:49:01,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:01,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 08:49:01,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491705740] [2020-10-13 08:49:01,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 08:49:01,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:01,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 08:49:01,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 08:49:01,899 INFO L87 Difference]: Start difference. First operand 7604 states and 8509 transitions. Second operand 10 states. [2020-10-13 08:49:03,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:03,978 INFO L93 Difference]: Finished difference Result 13767 states and 15256 transitions. [2020-10-13 08:49:03,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 08:49:03,979 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1229 [2020-10-13 08:49:03,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:03,981 INFO L225 Difference]: With dead ends: 13767 [2020-10-13 08:49:03,981 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 08:49:03,994 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2020-10-13 08:49:03,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 08:49:03,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 08:49:03,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 08:49:03,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 08:49:03,995 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1229 [2020-10-13 08:49:03,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:03,996 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 08:49:03,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 08:49:03,996 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 08:49:03,996 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 08:49:03,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-13 08:49:03,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 08:49:05,471 WARN L193 SmtUtils]: Spent 773.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 297 [2020-10-13 08:49:05,951 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 297 [2020-10-13 08:49:08,764 WARN L193 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 458 DAG size of output: 163 [2020-10-13 08:49:10,783 WARN L193 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 304 DAG size of output: 97 [2020-10-13 08:49:12,858 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 304 DAG size of output: 97 [2020-10-13 08:49:12,863 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 08:49:12,863 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a24~0 |old(~a24~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~a21~0 |old(~a21~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputA~0 |old(~inputA~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a15~0 |old(~a15~0)|)) [2020-10-13 08:49:12,863 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 08:49:12,864 INFO L268 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2020-10-13 08:49:12,864 INFO L268 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2020-10-13 08:49:12,864 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,864 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,864 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,864 INFO L268 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2020-10-13 08:49:12,864 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-10-13 08:49:12,864 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-10-13 08:49:12,865 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-10-13 08:49:12,865 INFO L268 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2020-10-13 08:49:12,865 INFO L268 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2020-10-13 08:49:12,865 INFO L268 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2020-10-13 08:49:12,865 INFO L268 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2020-10-13 08:49:12,865 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,865 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,865 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,866 INFO L268 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2020-10-13 08:49:12,866 INFO L268 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2020-10-13 08:49:12,866 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-10-13 08:49:12,866 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-10-13 08:49:12,866 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-10-13 08:49:12,866 INFO L268 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2020-10-13 08:49:12,866 INFO L268 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2020-10-13 08:49:12,866 INFO L268 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2020-10-13 08:49:12,866 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,867 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,867 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,867 INFO L268 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2020-10-13 08:49:12,867 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-10-13 08:49:12,867 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-10-13 08:49:12,867 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-10-13 08:49:12,867 INFO L268 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2020-10-13 08:49:12,867 INFO L268 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2020-10-13 08:49:12,867 INFO L268 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2020-10-13 08:49:12,868 INFO L268 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2020-10-13 08:49:12,868 INFO L268 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2020-10-13 08:49:12,868 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,868 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,868 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,868 INFO L268 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2020-10-13 08:49:12,868 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-10-13 08:49:12,868 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-10-13 08:49:12,869 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-10-13 08:49:12,869 INFO L268 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2020-10-13 08:49:12,869 INFO L268 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2020-10-13 08:49:12,869 INFO L268 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2020-10-13 08:49:12,869 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,869 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,869 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,869 INFO L268 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2020-10-13 08:49:12,869 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-10-13 08:49:12,869 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-10-13 08:49:12,870 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-10-13 08:49:12,870 INFO L268 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2020-10-13 08:49:12,870 INFO L268 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2020-10-13 08:49:12,870 INFO L268 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2020-10-13 08:49:12,870 INFO L268 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2020-10-13 08:49:12,870 INFO L268 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2020-10-13 08:49:12,870 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,870 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,870 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,871 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,871 INFO L268 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2020-10-13 08:49:12,871 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-10-13 08:49:12,871 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-10-13 08:49:12,871 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-10-13 08:49:12,871 INFO L268 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2020-10-13 08:49:12,871 INFO L268 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2020-10-13 08:49:12,871 INFO L268 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2020-10-13 08:49:12,871 INFO L268 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2020-10-13 08:49:12,871 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,872 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,872 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,872 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-10-13 08:49:12,872 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-10-13 08:49:12,872 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-10-13 08:49:12,872 INFO L268 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2020-10-13 08:49:12,872 INFO L268 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2020-10-13 08:49:12,872 INFO L268 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2020-10-13 08:49:12,872 INFO L268 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2020-10-13 08:49:12,872 INFO L268 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2020-10-13 08:49:12,873 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,873 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,873 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,873 INFO L268 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2020-10-13 08:49:12,873 INFO L268 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2020-10-13 08:49:12,873 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-10-13 08:49:12,873 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-10-13 08:49:12,873 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-10-13 08:49:12,873 INFO L268 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2020-10-13 08:49:12,874 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse4 (= ~a24~0 |old(~a24~0)|)) (.cse17 (= ~a21~0 |old(~a21~0)|)) (.cse11 (= ~a21~0 6)) (.cse9 (= ~a24~0 1)) (.cse5 (= ~a12~0 |old(~a12~0)|)) (.cse6 (= ~a15~0 |old(~a15~0)|))) (let ((.cse13 (not (= 6 |old(~a15~0)|))) (.cse14 (and .cse11 .cse9 .cse5 .cse6)) (.cse21 (not (= 8 |old(~a15~0)|))) (.cse20 (not (<= |old(~a21~0)| 6))) (.cse8 (= 7 ~a15~0)) (.cse7 (not (= |old(~a24~0)| 1))) (.cse12 (not (= 6 |old(~a21~0)|))) (.cse10 (not (= 7 |old(~a15~0)|))) (.cse0 (not (<= |old(~a15~0)| 7))) (.cse15 (not (<= |old(~a12~0)| 599997))) (.cse1 (not (<= 1 |old(~a24~0)|))) (.cse2 (not (<= |old(~a24~0)| 1))) (.cse16 (not (<= |old(~a21~0)| 9))) (.cse3 (not (<= 7 |old(~a15~0)|))) (.cse18 (and .cse4 .cse17 .cse5 .cse6)) (.cse19 (not (<= |old(~a12~0)| 225871)))) (and (or .cse0 .cse1 .cse2 (not (<= 10 |old(~a21~0)|)) (not (<= |old(~a21~0)| 10)) .cse3 (and .cse4 (<= 10 ~a21~0) .cse5 (<= ~a21~0 10) .cse6)) (or (not (= 7 |old(~a21~0)|)) .cse7 (and .cse8 .cse9 .cse5 (= 7 ~a21~0)) .cse10) (or (and (= 5 ~a15~0) .cse11 .cse9 .cse5) .cse7 .cse12 (not (<= (+ |old(~a12~0)| 43) 0)) (not (= 5 |old(~a15~0)|))) (or (not (<= |old(~a12~0)| 46)) .cse13 .cse7 .cse14 (not (<= 13 |old(~a12~0)|)) .cse12) (or .cse15 .cse1 .cse2 (not (<= |old(~a15~0)| 6)) .cse16 (not (<= 6 |old(~a15~0)|)) (and (<= 6 ~a15~0) .cse4 .cse17 .cse5 (<= ~a15~0 6)) (not (<= 9 |old(~a21~0)|))) (or .cse18 (not (<= |old(~a15~0)| 8)) (not (<= (+ |old(~a12~0)| 49) 0))) (or .cse18 (not (= 9 |old(~a15~0)|)) (not (<= 82 |old(~a12~0)|))) (or .cse13 .cse7 .cse14 (not (<= 12849 |old(~a12~0)|)) .cse19 .cse12) (or .cse0 .cse1 .cse2 (not (<= 81 |old(~a12~0)|)) (not (<= 6 |old(~a21~0)|)) .cse20 .cse3 (and .cse4 (<= 6 ~a21~0) .cse5 (<= ~a21~0 6) .cse6)) (or .cse7 (not (= 8 |old(~a21~0)|)) (and .cse8 .cse9 (= ~a21~0 8) .cse5) .cse10) (or (not (<= 23 |old(~a12~0)|)) .cse18 .cse21 (not (<= |old(~a12~0)| 76))) (or (not (= 10 |old(~a21~0)|)) .cse15 .cse21 (and .cse4 (= ~a21~0 10) .cse5 .cse6)) (or .cse15 .cse18 .cse20 (not (<= 73269 |old(~a12~0)|))) (or (and .cse8 .cse11 .cse9 .cse5) .cse7 (not (<= |old(~a12~0)| 10)) (not (<= 0 (+ |old(~a12~0)| 41))) .cse12 .cse10) (or .cse0 .cse15 .cse1 .cse2 (not (<= 528306 |old(~a12~0)|)) .cse16 .cse18 .cse3) (or .cse18 (not (<= 7 |old(~a21~0)|)) .cse19)))) [2020-10-13 08:49:12,875 INFO L268 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2020-10-13 08:49:12,875 INFO L268 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2020-10-13 08:49:12,875 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,875 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,875 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,875 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-10-13 08:49:12,875 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-10-13 08:49:12,875 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-10-13 08:49:12,875 INFO L268 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2020-10-13 08:49:12,875 INFO L268 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2020-10-13 08:49:12,876 INFO L268 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2020-10-13 08:49:12,876 INFO L268 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2020-10-13 08:49:12,876 INFO L268 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2020-10-13 08:49:12,876 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,876 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,876 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,876 INFO L268 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2020-10-13 08:49:12,876 INFO L268 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2020-10-13 08:49:12,876 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-10-13 08:49:12,876 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-10-13 08:49:12,877 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-10-13 08:49:12,877 INFO L268 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2020-10-13 08:49:12,877 INFO L268 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2020-10-13 08:49:12,877 INFO L268 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2020-10-13 08:49:12,877 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,877 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,877 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,877 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-10-13 08:49:12,877 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-10-13 08:49:12,877 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-10-13 08:49:12,877 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-10-13 08:49:12,878 INFO L268 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2020-10-13 08:49:12,878 INFO L268 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2020-10-13 08:49:12,878 INFO L268 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2020-10-13 08:49:12,878 INFO L268 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2020-10-13 08:49:12,878 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,878 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,878 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,878 INFO L268 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2020-10-13 08:49:12,878 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-10-13 08:49:12,878 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-10-13 08:49:12,879 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-10-13 08:49:12,879 INFO L268 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2020-10-13 08:49:12,879 INFO L268 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2020-10-13 08:49:12,879 INFO L268 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2020-10-13 08:49:12,879 INFO L268 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2020-10-13 08:49:12,879 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,879 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,879 INFO L268 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2020-10-13 08:49:12,879 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-10-13 08:49:12,879 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-10-13 08:49:12,880 INFO L268 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2020-10-13 08:49:12,880 INFO L268 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2020-10-13 08:49:12,880 INFO L268 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2020-10-13 08:49:12,880 INFO L268 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2020-10-13 08:49:12,880 INFO L268 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2020-10-13 08:49:12,880 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 160) no Hoare annotation was computed. [2020-10-13 08:49:12,880 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,880 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,880 INFO L268 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2020-10-13 08:49:12,880 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-10-13 08:49:12,881 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-10-13 08:49:12,881 INFO L268 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2020-10-13 08:49:12,881 INFO L268 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2020-10-13 08:49:12,881 INFO L268 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2020-10-13 08:49:12,881 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,881 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,881 INFO L268 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2020-10-13 08:49:12,881 INFO L268 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2020-10-13 08:49:12,881 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-10-13 08:49:12,881 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-10-13 08:49:12,882 INFO L268 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2020-10-13 08:49:12,882 INFO L268 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2020-10-13 08:49:12,882 INFO L268 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2020-10-13 08:49:12,882 INFO L268 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2020-10-13 08:49:12,882 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,882 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,882 INFO L268 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2020-10-13 08:49:12,882 INFO L268 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2020-10-13 08:49:12,882 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-10-13 08:49:12,882 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-10-13 08:49:12,883 INFO L268 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2020-10-13 08:49:12,883 INFO L268 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2020-10-13 08:49:12,883 INFO L268 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2020-10-13 08:49:12,883 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,883 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,883 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,883 INFO L268 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2020-10-13 08:49:12,883 INFO L268 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2020-10-13 08:49:12,883 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-10-13 08:49:12,883 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-10-13 08:49:12,883 INFO L268 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2020-10-13 08:49:12,884 INFO L268 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2020-10-13 08:49:12,884 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,884 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,884 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-10-13 08:49:12,884 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,884 INFO L268 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2020-10-13 08:49:12,884 INFO L268 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2020-10-13 08:49:12,884 INFO L268 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2020-10-13 08:49:12,884 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-10-13 08:49:12,884 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-10-13 08:49:12,885 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-10-13 08:49:12,885 INFO L268 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2020-10-13 08:49:12,885 INFO L268 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2020-10-13 08:49:12,885 INFO L268 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2020-10-13 08:49:12,885 INFO L268 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2020-10-13 08:49:12,885 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,885 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,885 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,885 INFO L268 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2020-10-13 08:49:12,885 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-10-13 08:49:12,885 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-10-13 08:49:12,886 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-10-13 08:49:12,886 INFO L268 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2020-10-13 08:49:12,886 INFO L268 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2020-10-13 08:49:12,886 INFO L268 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2020-10-13 08:49:12,886 INFO L268 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2020-10-13 08:49:12,886 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,886 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,886 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,886 INFO L268 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2020-10-13 08:49:12,886 INFO L268 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2020-10-13 08:49:12,887 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-10-13 08:49:12,887 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-10-13 08:49:12,887 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-10-13 08:49:12,887 INFO L268 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2020-10-13 08:49:12,887 INFO L268 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2020-10-13 08:49:12,887 INFO L268 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2020-10-13 08:49:12,887 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,887 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,887 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,887 INFO L268 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2020-10-13 08:49:12,888 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-10-13 08:49:12,888 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-10-13 08:49:12,888 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-10-13 08:49:12,888 INFO L268 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2020-10-13 08:49:12,888 INFO L268 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2020-10-13 08:49:12,888 INFO L268 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2020-10-13 08:49:12,888 INFO L268 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2020-10-13 08:49:12,888 INFO L268 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2020-10-13 08:49:12,888 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,888 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,889 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:49:12,889 INFO L268 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2020-10-13 08:49:12,889 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-10-13 08:49:12,889 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-10-13 08:49:12,889 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-10-13 08:49:12,889 INFO L268 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2020-10-13 08:49:12,889 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 08:49:12,889 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= (+ ~a12~0 49) 0) (= ~a15~0 8) (= 7 ~a21~0)) [2020-10-13 08:49:12,889 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 08:49:12,890 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 08:49:12,890 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 7 |old(~a21~0)|)) (and (= ~a24~0 |old(~a24~0)|) (= ~a15~0 8) (= ~a12~0 |old(~a12~0)|) (= 7 ~a21~0)) (not (= 8 |old(~a15~0)|)) (not (<= (+ |old(~a12~0)| 49) 0))) [2020-10-13 08:49:12,890 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2020-10-13 08:49:12,890 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (let ((.cse3 (= ~a15~0 6)) (.cse9 (<= ~a12~0 225871)) (.cse1 (= ~a21~0 6)) (.cse0 (= 7 ~a15~0)) (.cse2 (= ~a24~0 1)) (.cse11 (<= ~a21~0 9)) (.cse4 (<= ~a15~0 7)) (.cse5 (<= ~a24~0 1)) (.cse6 (<= 7 ~a15~0)) (.cse7 (<= 1 ~a24~0)) (.cse10 (<= ~a12~0 599997)) (.cse8 (<= ~a21~0 6))) (or (and .cse0 (<= 0 (+ ~a12~0 41)) (<= ~a12~0 10) .cse1 .cse2) (and (<= ~a12~0 46) (<= 13 ~a12~0) .cse1 .cse2 .cse3) (and (<= 82 ~a12~0) (= ~a15~0 9)) (and (<= (+ ~a12~0 49) 0) (<= ~a15~0 8)) (not (= 8 |old(~a15~0)|)) (and .cse4 .cse5 (<= 81 ~a12~0) .cse6 .cse7 (<= 6 ~a21~0) .cse8) (not (<= (+ |old(~a12~0)| 49) 0)) (and .cse9 (<= 12849 ~a12~0) .cse1 .cse2 .cse3) (and .cse10 (= ~a21~0 10) (= ~a15~0 8)) (not (= 7 |old(~a21~0)|)) (and (<= 7 ~a21~0) .cse9) (and (= 5 ~a15~0) (<= (+ ~a12~0 43) 0) .cse1 .cse2) (and .cse0 .cse2 (= 7 ~a21~0)) (and (<= 23 ~a12~0) (= ~a15~0 |old(~a15~0)|) (<= ~a12~0 76)) (and (<= 528306 ~a12~0) .cse4 .cse5 .cse10 .cse6 .cse7 .cse11) (and .cse0 .cse2 (= ~a21~0 8)) (and (<= 9 ~a21~0) .cse5 (<= 6 ~a15~0) .cse10 .cse7 .cse11 (<= ~a15~0 6)) (and .cse4 .cse5 .cse6 .cse7 (<= 10 ~a21~0) (<= ~a21~0 10)) (and .cse10 .cse8 (<= 73269 ~a12~0)))) [2020-10-13 08:49:12,890 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-10-13 08:49:12,891 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-10-13 08:49:12,891 INFO L264 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse3 (= ~a15~0 6)) (.cse9 (<= ~a12~0 225871)) (.cse1 (= ~a21~0 6)) (.cse0 (= 7 ~a15~0)) (.cse2 (= ~a24~0 1)) (.cse11 (<= ~a21~0 9)) (.cse4 (<= ~a15~0 7)) (.cse5 (<= ~a24~0 1)) (.cse6 (<= 7 ~a15~0)) (.cse7 (<= 1 ~a24~0)) (.cse10 (<= ~a12~0 599997)) (.cse8 (<= ~a21~0 6))) (or (and .cse0 (<= 0 (+ ~a12~0 41)) (<= ~a12~0 10) .cse1 .cse2) (and (<= ~a12~0 46) (<= 13 ~a12~0) .cse1 .cse2 .cse3) (and (<= 82 ~a12~0) (= ~a15~0 9)) (and (<= (+ ~a12~0 49) 0) (<= ~a15~0 8)) (not (= 8 |old(~a15~0)|)) (and .cse4 .cse5 (<= 81 ~a12~0) .cse6 .cse7 (<= 6 ~a21~0) .cse8) (not (<= (+ |old(~a12~0)| 49) 0)) (and .cse9 (<= 12849 ~a12~0) .cse1 .cse2 .cse3) (and .cse10 (= ~a21~0 10) (= ~a15~0 8)) (not (= 7 |old(~a21~0)|)) (and (<= 7 ~a21~0) .cse9) (and (= 5 ~a15~0) (<= (+ ~a12~0 43) 0) .cse1 .cse2) (and .cse0 .cse2 (= 7 ~a21~0)) (and (<= 23 ~a12~0) (= ~a15~0 |old(~a15~0)|) (<= ~a12~0 76)) (and (<= 528306 ~a12~0) .cse4 .cse5 .cse10 .cse6 .cse7 .cse11) (and .cse0 .cse2 (= ~a21~0 8)) (and (<= 9 ~a21~0) .cse5 (<= 6 ~a15~0) .cse10 .cse7 .cse11 (<= ~a15~0 6)) (and .cse4 .cse5 .cse6 .cse7 (<= 10 ~a21~0) (<= ~a21~0 10)) (and .cse10 .cse8 (<= 73269 ~a12~0)))) [2020-10-13 08:49:12,891 INFO L268 CegarLoopResult]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2020-10-13 08:49:12,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:49:12 BoogieIcfgContainer [2020-10-13 08:49:12,917 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 08:49:12,919 INFO L168 Benchmark]: Toolchain (without parser) took 181297.57 ms. Allocated memory was 146.8 MB in the beginning and 2.7 GB in the end (delta: 2.6 GB). Free memory was 101.0 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2020-10-13 08:49:12,919 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 08:49:12,920 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1009.08 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 100.8 MB in the beginning and 167.0 MB in the end (delta: -66.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 7.1 GB. [2020-10-13 08:49:12,920 INFO L168 Benchmark]: Boogie Preprocessor took 190.55 ms. Allocated memory is still 204.5 MB. Free memory was 167.0 MB in the beginning and 161.3 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. [2020-10-13 08:49:12,921 INFO L168 Benchmark]: RCFGBuilder took 1853.27 ms. Allocated memory was 204.5 MB in the beginning and 238.6 MB in the end (delta: 34.1 MB). Free memory was 161.3 MB in the beginning and 154.8 MB in the end (delta: 6.6 MB). Peak memory consumption was 78.0 MB. Max. memory is 7.1 GB. [2020-10-13 08:49:12,921 INFO L168 Benchmark]: TraceAbstraction took 178238.72 ms. Allocated memory was 238.6 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 154.8 MB in the beginning and 1.6 GB in the end (delta: -1.4 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2020-10-13 08:49:12,923 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1009.08 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 100.8 MB in the beginning and 167.0 MB in the end (delta: -66.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 190.55 ms. Allocated memory is still 204.5 MB. Free memory was 167.0 MB in the beginning and 161.3 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1853.27 ms. Allocated memory was 204.5 MB in the beginning and 238.6 MB in the end (delta: 34.1 MB). Free memory was 161.3 MB in the beginning and 154.8 MB in the end (delta: 6.6 MB). Peak memory consumption was 78.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 178238.72 ms. Allocated memory was 238.6 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 154.8 MB in the beginning and 1.6 GB in the end (delta: -1.4 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 160]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: (((((((((((((((((((((7 == a15 && 0 <= a12 + 41) && a12 <= 10) && a21 == 6) && a24 == 1) || ((((a12 <= 46 && 13 <= a12) && a21 == 6) && a24 == 1) && a15 == 6)) || (82 <= a12 && a15 == 9)) || (a12 + 49 <= 0 && a15 <= 8)) || !(8 == \old(a15))) || ((((((a15 <= 7 && a24 <= 1) && 81 <= a12) && 7 <= a15) && 1 <= a24) && 6 <= a21) && a21 <= 6)) || !(\old(a12) + 49 <= 0)) || ((((a12 <= 225871 && 12849 <= a12) && a21 == 6) && a24 == 1) && a15 == 6)) || ((a12 <= 599997 && a21 == 10) && a15 == 8)) || !(7 == \old(a21))) || (7 <= a21 && a12 <= 225871)) || (((5 == a15 && a12 + 43 <= 0) && a21 == 6) && a24 == 1)) || ((7 == a15 && a24 == 1) && 7 == a21)) || ((23 <= a12 && a15 == \old(a15)) && a12 <= 76)) || ((((((528306 <= a12 && a15 <= 7) && a24 <= 1) && a12 <= 599997) && 7 <= a15) && 1 <= a24) && a21 <= 9)) || ((7 == a15 && a24 == 1) && a21 == 8)) || ((((((9 <= a21 && a24 <= 1) && 6 <= a15) && a12 <= 599997) && 1 <= a24) && a21 <= 9) && a15 <= 6)) || (((((a15 <= 7 && a24 <= 1) && 7 <= a15) && 1 <= a24) && 10 <= a21) && a21 <= 10)) || ((a12 <= 599997 && a21 <= 6) && 73269 <= a12) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 169.2s, OverallIterations: 30, TraceHistogramMax: 11, AutomataDifference: 50.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 827 SDtfs, 15246 SDslu, 974 SDs, 0 SdLazy, 29560 SolverSat, 2575 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 33.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 695 GetRequests, 429 SyntacticMatches, 12 SemanticMatches, 254 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7970occurred in iteration=25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.1s AutomataMinimizationTime, 30 MinimizatonAttempts, 5299 StatesRemovedByMinimization, 29 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 565 PreInvPairs, 669 NumberOfFragments, 1056 HoareAnnotationTreeSize, 565 FomulaSimplifications, 363509 FormulaSimplificationTreeSizeReduction, 1.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 66313 FormulaSimplificationTreeSizeReductionInter, 6.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 104.8s InterpolantComputationTime, 16972 NumberOfCodeBlocks, 16972 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 16942 ConstructedInterpolants, 0 QuantifiedInterpolants, 24276891 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 30 InterpolantComputations, 2 PerfectInterpolantSequences, 40972/41242 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...